diff options
Diffstat (limited to 'debian/patches/0004-GNU-libc6-fixes.patch')
| -rw-r--r-- | debian/patches/0004-GNU-libc6-fixes.patch | 6706 |
1 files changed, 6706 insertions, 0 deletions
diff --git a/debian/patches/0004-GNU-libc6-fixes.patch b/debian/patches/0004-GNU-libc6-fixes.patch new file mode 100644 index 0000000..5b39d41 --- /dev/null +++ b/debian/patches/0004-GNU-libc6-fixes.patch @@ -0,0 +1,6706 @@ +From: Jeremie Corbier <jeremie+debian@famille-corbier.net> +Date: Tue, 6 Apr 2010 15:51:10 +0200 +Subject: GNU libc6 fixes + +Fixes for recent libc releases. + +Signed-off-by: Jeremie Corbier <jeremie@famille-corbier.net> +--- + addrconf.c | 16 +- + cftoken.c | 12 +- + cftoken.l | 12 +- + common.c | 226 +++++++++++++------------- + common.h | 2 +- + config.c | 268 +++++++++++++++---------------- + configure | 50 +++++- + configure.in | 7 + + dhcp6.h | 7 + + dhcp6_ctl.c | 40 ++--- + dhcp6c.c | 246 ++++++++++++++--------------- + dhcp6c_ia.c | 86 +++++----- + dhcp6c_script.c | 36 ++--- + dhcp6relay.c | 118 +++++++------- + dhcp6relay_script.c | 28 ++-- + dhcp6s.c | 446 ++++++++++++++++++++++++++-------------------------- + if.c | 12 +- + lease.c | 14 +- + prefixconf.c | 24 +-- + timer.c | 6 +- + 20 files changed, 859 insertions(+), 797 deletions(-) + +diff --git a/addrconf.c b/addrconf.c +index d98373f..98d03e5 100644 +--- a/addrconf.c ++++ b/addrconf.c +@@ -122,7 +122,7 @@ update_address(ia, addr, dhcpifp, ctlp, callback) + if (addr->vltime != DHCP6_DURATION_INFINITE && + (addr->pltime == DHCP6_DURATION_INFINITE || + addr->pltime > addr->vltime)) { +- dprintf(LOG_INFO, FNAME, "invalid address %s: " ++ debug_printf(LOG_INFO, FNAME, "invalid address %s: " + "pltime (%lu) is larger than vltime (%lu)", + in6addr2str(&addr->addr, 0), + addr->pltime, addr->vltime); +@@ -131,7 +131,7 @@ update_address(ia, addr, dhcpifp, ctlp, callback) + + if (iac_na == NULL) { + if ((iac_na = malloc(sizeof(*iac_na))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "memory allocation failed"); ++ debug_printf(LOG_NOTICE, FNAME, "memory allocation failed"); + return (-1); + } + memset(iac_na, 0, sizeof(*iac_na)); +@@ -152,7 +152,7 @@ update_address(ia, addr, dhcpifp, ctlp, callback) + /* search for the given address, and make a new one if it fails */ + if ((sa = find_addr(&iac_na->statefuladdr_head, addr)) == NULL) { + if ((sa = malloc(sizeof(*sa))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "memory allocation failed"); ++ debug_printf(LOG_NOTICE, FNAME, "memory allocation failed"); + return (-1); + } + memset(sa, 0, sizeof(*sa)); +@@ -169,7 +169,7 @@ update_address(ia, addr, dhcpifp, ctlp, callback) + sa->addr.pltime = addr->pltime; + sa->addr.vltime = addr->vltime; + sa->dhcpif = dhcpifp; +- dprintf(LOG_DEBUG, FNAME, "%s an address %s pltime=%lu, vltime=%lu", ++ debug_printf(LOG_DEBUG, FNAME, "%s an address %s pltime=%lu, vltime=%lu", + sacreate ? "create" : "update", + in6addr2str(&addr->addr, 0), addr->pltime, addr->vltime); + +@@ -194,7 +194,7 @@ update_address(ia, addr, dhcpifp, ctlp, callback) + if (sa->timer == NULL) { + sa->timer = dhcp6_add_timer(addr_timo, sa); + if (sa->timer == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to add stateful addr timer"); + remove_addr(sa); /* XXX */ + return (-1); +@@ -233,7 +233,7 @@ remove_addr(sa) + { + int ret; + +- dprintf(LOG_DEBUG, FNAME, "remove an address %s", ++ debug_printf(LOG_DEBUG, FNAME, "remove an address %s", + in6addr2str(&sa->addr.addr, 0)); + + if (sa->timer) +@@ -343,7 +343,7 @@ na_renew_data_free(evd) + struct dhcp6_list *ial; + + if (evd->type != DHCP6_EVDATA_IANA) { +- dprintf(LOG_ERR, FNAME, "assumption failure"); ++ debug_printf(LOG_ERR, FNAME, "assumption failure"); + exit(1); + } + +@@ -362,7 +362,7 @@ addr_timo(arg) + struct ia *ia; + void (*callback)__P((struct ia *)); + +- dprintf(LOG_DEBUG, FNAME, "address timeout for %s", ++ debug_printf(LOG_DEBUG, FNAME, "address timeout for %s", + in6addr2str(&sa->addr.addr, 0)); + + ia = sa->ctl->iacna_ia; +diff --git a/cftoken.c b/cftoken.c +index fcccc5a..0f6c1bf 100644 +--- a/cftoken.c ++++ b/cftoken.c +@@ -2475,10 +2475,10 @@ cfdebug_print(w, t, l) + int l; + { + if (w) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "<%d>%s [%s] (%d)", yy_start, w, t, l); + } else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "<%d>[%s] (%d)", yy_start, t, l); + } + } +@@ -2494,7 +2494,7 @@ yyerror0(int level, char *s, va_list ap) + if (bp < ep) + bp += vsnprintf(bp, ep - bp, s, ap); + +- dprintf(level, FNAME, ebuf); ++ debug_printf(level, FNAME, ebuf); + } + + void +@@ -2532,7 +2532,7 @@ cfswitch_buffer(incl) + FILE *fp; + + if (incstackp >= MAX_INCLUDE_DEPTH) { +- dprintf(LOG_ERR, FNAME, "cfparse: includes nested too deeply"); ++ debug_printf(LOG_ERR, FNAME, "cfparse: includes nested too deeply"); + return (-1); + } + incstack[incstackp].path = configfilename; +@@ -2541,7 +2541,7 @@ cfswitch_buffer(incl) + + fp = fopen(path, "r"); + if (fp == NULL) { +- dprintf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", + path, strerror(errno)); + if (errno == ENOENT) + return (0); +@@ -2563,7 +2563,7 @@ cfparse(conf) + { + configfilename = conf; + if ((yyin = fopen(configfilename, "r")) == NULL) { +- dprintf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", + configfilename, strerror(errno)); + if (errno == ENOENT) + return (0); +diff --git a/cftoken.l b/cftoken.l +index ece7fbb..ad4128d 100644 +--- a/cftoken.l ++++ b/cftoken.l +@@ -340,10 +340,10 @@ cfdebug_print(w, t, l) + int l; + { + if (w) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "<%d>%s [%s] (%d)", yy_start, w, t, l); + } else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "<%d>[%s] (%d)", yy_start, t, l); + } + } +@@ -359,7 +359,7 @@ yyerror0(int level, char *s, va_list ap) + if (bp < ep) + bp += vsnprintf(bp, ep - bp, s, ap); + +- dprintf(level, FNAME, ebuf); ++ debug_printf(level, FNAME, ebuf); + } + + void +@@ -397,7 +397,7 @@ cfswitch_buffer(incl) + FILE *fp; + + if (incstackp >= MAX_INCLUDE_DEPTH) { +- dprintf(LOG_ERR, FNAME, "cfparse: includes nested too deeply"); ++ debug_printf(LOG_ERR, FNAME, "cfparse: includes nested too deeply"); + return (-1); + } + incstack[incstackp].path = configfilename; +@@ -406,7 +406,7 @@ cfswitch_buffer(incl) + + fp = fopen(path, "r"); + if (fp == NULL) { +- dprintf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", + path, strerror(errno)); + if (errno == ENOENT) + return (0); +@@ -428,7 +428,7 @@ cfparse(conf) + { + configfilename = conf; + if ((yyin = fopen(configfilename, "r")) == NULL) { +- dprintf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "cfparse: fopen(%s): %s", + configfilename, strerror(errno)); + if (errno == ENOENT) + return (0); +diff --git a/common.c b/common.c +index f35399c..cc4abcc 100644 +--- a/common.c ++++ b/common.c +@@ -265,7 +265,7 @@ dhcp6_add_listval(head, type, val, sublist) + struct dhcp6_listval *lv = NULL; + + if ((lv = malloc(sizeof(*lv))) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to allocate memory for list entry"); + goto fail; + } +@@ -298,7 +298,7 @@ dhcp6_add_listval(head, type, val, sublist) + goto fail; + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "unexpected list value type (%d)", type); + goto fail; + } +@@ -361,7 +361,7 @@ dhcp6_get_addr(optlen, cp, type, list) + void *val; + + if (optlen % sizeof(struct in6_addr) || optlen == 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "malformed DHCP option: type %d, len %d", type, optlen); + return -1; + } +@@ -371,14 +371,14 @@ dhcp6_get_addr(optlen, cp, type, list) + memcpy(&valaddr, val, sizeof(valaddr)); + if (dhcp6_find_listval(list, + DHCP6_LISTVAL_ADDR6, &valaddr, 0)) { +- dprintf(LOG_INFO, FNAME, "duplicated %s address (%s)", ++ debug_printf(LOG_INFO, FNAME, "duplicated %s address (%s)", + dhcp6optstr(type), in6addr2str(&valaddr, 0)); + continue; + } + + if (dhcp6_add_listval(list, DHCP6_LISTVAL_ADDR6, + &valaddr, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy %s address", dhcp6optstr(type)); + return -1; + } +@@ -405,7 +405,7 @@ dhcp6_set_addr(type, list, p, optep, len) + tmpbuf = NULL; + optlen = dhcp6_count_list(list) * sizeof(struct in6_addr); + if ((tmpbuf = malloc(optlen)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation failed for %s options", + dhcp6optstr(type)); + return -1; +@@ -438,10 +438,10 @@ dhcp6_get_domain(optlen, cp, type, list) + + if (dnsdecode((u_char **)(void *)&val, + (u_char *)(cp + optlen), name, sizeof(name)) == NULL) { +- dprintf(LOG_INFO, FNAME, "failed to " ++ debug_printf(LOG_INFO, FNAME, "failed to " + "decode a %s domain name", + dhcp6optstr(type)); +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "malformed DHCP option: type %d, len %d", + type, optlen); + return -1; +@@ -452,7 +452,7 @@ dhcp6_get_domain(optlen, cp, type, list) + + if (dhcp6_add_listval(list, + DHCP6_LISTVAL_VBUF, &vb, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to " ++ debug_printf(LOG_ERR, FNAME, "failed to " + "copy a %s domain name", dhcp6optstr(type)); + return -1; + } +@@ -485,7 +485,7 @@ dhcp6_set_domain(type, list, p, optep, len) + + tmpbuf = NULL; + if ((tmpbuf = malloc(optlen)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed for " ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed for " + "%s domain options", dhcp6optstr(type)); + return -1; + } +@@ -497,14 +497,14 @@ dhcp6_set_domain(type, list, p, optep, len) + nlen = dnsencode((const char *)d->val_vbuf.dv_buf, + name, sizeof (name)); + if (nlen < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to encode a %s domain name", + dhcp6optstr(type)); + free(tmpbuf); + return -1; + } + if (ep - cp < nlen) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "buffer length for %s domain name is too short", + dhcp6optstr(type)); + free(tmpbuf); +@@ -530,7 +530,7 @@ dhcp6_create_event(ifp, state) + struct dhcp6_event *ev; + + if ((ev = malloc(sizeof(*ev))) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to allocate memory for an event"); + return (NULL); + } +@@ -548,7 +548,7 @@ dhcp6_remove_event(ev) + { + struct dhcp6_serverinfo *sp, *sp_next; + +- dprintf(LOG_DEBUG, FNAME, "removing an event on %s, state=%s", ++ debug_printf(LOG_DEBUG, FNAME, "removing an event on %s, state=%s", + ev->ifp->ifname, dhcp6_event_statestr(ev)); + + dhcp6_remove_evdata(ev); +@@ -562,7 +562,7 @@ dhcp6_remove_event(ev) + for (sp = ev->servers; sp; sp = sp_next) { + sp_next = sp->next; + +- dprintf(LOG_DEBUG, FNAME, "removing server (ID: %s)", ++ debug_printf(LOG_DEBUG, FNAME, "removing server (ID: %s)", + duidstr(&sp->optinfo.serverID)); + dhcp6_clear_options(&sp->optinfo); + if (sp->authparam != NULL) +@@ -649,14 +649,14 @@ dhcp6_auth_replaycheck(method, prev, current) + char bufcurrent[] = "ffff ffff ffff ffff"; + + if (method != DHCP6_AUTHRDM_MONOCOUNTER) { +- dprintf(LOG_ERR, FNAME, "unsupported replay detection " ++ debug_printf(LOG_ERR, FNAME, "unsupported replay detection " + "method (%d)", method); + return (-1); + } + + (void)sprint_uint64(bufprev, sizeof(bufprev), prev); + (void)sprint_uint64(bufcurrent, sizeof(bufcurrent), current); +- dprintf(LOG_DEBUG, FNAME, "previous: %s, current: %s", ++ debug_printf(LOG_DEBUG, FNAME, "previous: %s, current: %s", + bufprev, bufcurrent); + + prev = ntohq(prev); +@@ -667,7 +667,7 @@ dhcp6_auth_replaycheck(method, prev, current) + * whether the serial number is increasing or not. + */ + if (prev == (current ^ 0x8000000000000000ULL)) { +- dprintf(LOG_INFO, FNAME, "detected a singular point"); ++ debug_printf(LOG_INFO, FNAME, "detected a singular point"); + return (1); + } + +@@ -688,7 +688,7 @@ getifaddr(addr, ifnam, prefix, plen, strong, ignoreflags) + int error = -1; + + if (getifaddrs(&ifap) != 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "getifaddrs failed: %s", strerror(errno)); + return (-1); + } +@@ -765,7 +765,7 @@ getifidfromaddr(addr, ifidp) + int retval = -1; + + if (getifaddrs(&ifap) != 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "getifaddrs failed: %s", strerror(errno)); + return (-1); + } +@@ -781,7 +781,7 @@ getifidfromaddr(addr, ifidp) + + if (ifa != NULL) { + if ((ifid = if_nametoindex(ifa->ifa_name)) == 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "if_nametoindex failed for %s", ifa->ifa_name); + goto end; + } +@@ -999,20 +999,20 @@ get_duid(idfile, duid) + char tmpbuf[256]; /* DUID should be no more than 256 bytes */ + + if ((fp = fopen(idfile, "r")) == NULL && errno != ENOENT) +- dprintf(LOG_NOTICE, FNAME, "failed to open DUID file: %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to open DUID file: %s", + idfile); + + if (fp) { + /* decode length */ + if (fread(&len, sizeof(len), 1, fp) != 1) { +- dprintf(LOG_ERR, FNAME, "DUID file corrupted"); ++ debug_printf(LOG_ERR, FNAME, "DUID file corrupted"); + goto fail; + } + } else { + int l; + + if ((l = gethwid(tmpbuf, sizeof(tmpbuf), NULL, &hwtype)) < 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to get a hardware address"); + goto fail; + } +@@ -1022,18 +1022,18 @@ get_duid(idfile, duid) + memset(duid, 0, sizeof(*duid)); + duid->duid_len = len; + if ((duid->duid_id = (char *)malloc(len)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to allocate memory"); ++ debug_printf(LOG_ERR, FNAME, "failed to allocate memory"); + goto fail; + } + + /* copy (and fill) the ID */ + if (fp) { + if (fread(duid->duid_id, len, 1, fp) != 1) { +- dprintf(LOG_ERR, FNAME, "DUID file corrupted"); ++ debug_printf(LOG_ERR, FNAME, "DUID file corrupted"); + goto fail; + } + +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "extracted an existing DUID from %s: %s", + idfile, duidstr(duid)); + } else { +@@ -1047,27 +1047,27 @@ get_duid(idfile, duid) + dp->dh6_duid1_time = htonl((u_long)(t64 & 0xffffffff)); + memcpy((void *)(dp + 1), tmpbuf, (len - sizeof(*dp))); + +- dprintf(LOG_DEBUG, FNAME, "generated a new DUID: %s", ++ debug_printf(LOG_DEBUG, FNAME, "generated a new DUID: %s", + duidstr(duid)); + } + + /* save the (new) ID to the file for next time */ + if (!fp) { + if ((fp = fopen(idfile, "w+")) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to open DUID file for save"); + goto fail; + } + if ((fwrite(&len, sizeof(len), 1, fp)) != 1) { +- dprintf(LOG_ERR, FNAME, "failed to save DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to save DUID"); + goto fail; + } + if ((fwrite(duid->duid_id, len, 1, fp)) != 1) { +- dprintf(LOG_ERR, FNAME, "failed to save DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to save DUID"); + goto fail; + } + +- dprintf(LOG_DEBUG, FNAME, "saved generated DUID to %s", ++ debug_printf(LOG_DEBUG, FNAME, "saved generated DUID to %s", + idfile); + } + +@@ -1104,7 +1104,7 @@ getifhwaddr(const char *ifname, char *buf, u_int16_t *hwtypep, int ppa) + dl_phys_addr_req_t dlpar; + dl_phys_addr_ack_t *dlpaa; + +- dprintf(LOG_DEBUG, FNAME, "trying %s ppa %d", ifname, ppa); ++ debug_printf(LOG_DEBUG, FNAME, "trying %s ppa %d", ifname, ppa); + + if (ifname[0] == '\0') + return (-1); +@@ -1239,7 +1239,7 @@ gethwid(buf, len, ifname, hwtypep) + + if ((root = di_init("/", DINFOSUBTREE | DINFOMINOR | + DINFOPROP)) == DI_NODE_NIL) { +- dprintf(LOG_INFO, FNAME, "di_init failed"); ++ debug_printf(LOG_INFO, FNAME, "di_init failed"); + return (-1); + } + parms.buf = buf; +@@ -1283,7 +1283,7 @@ gethwid(buf, len, ifname, hwtypep) + default: + continue; /* XXX */ + } +- dprintf(LOG_DEBUG, FNAME, "found an interface %s for DUID", ++ debug_printf(LOG_DEBUG, FNAME, "found an interface %s for DUID", + ifa->ifa_name); + memcpy(buf, LLADDR(sdl), sdl->sdl_alen); + l = sdl->sdl_alen; /* sdl will soon be freed */ +@@ -1296,7 +1296,7 @@ gethwid(buf, len, ifname, hwtypep) + if (sll->sll_hatype != ARPHRD_ETHER) + continue; + *hwtypep = ARPHRD_ETHER; +- dprintf(LOG_DEBUG, FNAME, "found an interface %s for DUID", ++ debug_printf(LOG_DEBUG, FNAME, "found an interface %s for DUID", + ifa->ifa_name); + memcpy(buf, sll->sll_addr, sll->sll_halen); + l = sll->sll_halen; /* sll will soon be freed */ +@@ -1512,12 +1512,12 @@ dhcp6_get_options(p, ep, optinfo) + cp = (char *)(p + 1); + np = (struct dhcp6opt *)(cp + optlen); + +- dprintf(LOG_DEBUG, FNAME, "get DHCP option %s, len %d", ++ debug_printf(LOG_DEBUG, FNAME, "get DHCP option %s, len %d", + dhcp6optstr(opt), optlen); + + /* option length field overrun */ + if (np > ep) { +- dprintf(LOG_INFO, FNAME, "malformed DHCP options"); ++ debug_printf(LOG_INFO, FNAME, "malformed DHCP options"); + goto fail; + } + +@@ -1527,10 +1527,10 @@ dhcp6_get_options(p, ep, optinfo) + goto malformed; + duid0.duid_len = optlen; + duid0.duid_id = cp; +- dprintf(LOG_DEBUG, "", ++ debug_printf(LOG_DEBUG, "", + " DUID: %s", duidstr(&duid0)); + if (duidcpy(&optinfo->clientID, &duid0)) { +- dprintf(LOG_ERR, FNAME, "failed to copy DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy DUID"); + goto fail; + } + break; +@@ -1539,9 +1539,9 @@ dhcp6_get_options(p, ep, optinfo) + goto malformed; + duid0.duid_len = optlen; + duid0.duid_id = cp; +- dprintf(LOG_DEBUG, "", " DUID: %s", duidstr(&duid0)); ++ debug_printf(LOG_DEBUG, "", " DUID: %s", duidstr(&duid0)); + if (duidcpy(&optinfo->serverID, &duid0)) { +- dprintf(LOG_ERR, FNAME, "failed to copy DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy DUID"); + goto fail; + } + break; +@@ -1550,14 +1550,14 @@ dhcp6_get_options(p, ep, optinfo) + goto malformed; + memcpy(&val16, cp, sizeof(val16)); + num16 = ntohs(val16); +- dprintf(LOG_DEBUG, "", " status code: %s", ++ debug_printf(LOG_DEBUG, "", " status code: %s", + dhcp6_stcodestr(num16)); + + /* need to check duplication? */ + + if (dhcp6_add_listval(&optinfo->stcode_list, + DHCP6_LISTVAL_STCODE, &num16, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy " ++ debug_printf(LOG_ERR, FNAME, "failed to copy " + "status code"); + goto fail; + } +@@ -1574,13 +1574,13 @@ dhcp6_get_options(p, ep, optinfo) + memcpy(&opttype, val, sizeof(u_int16_t)); + num = (int)ntohs(opttype); + +- dprintf(LOG_DEBUG, "", ++ debug_printf(LOG_DEBUG, "", + " requested option: %s", + dhcp6optstr(num)); + + if (dhcp6_find_listval(&optinfo->reqopt_list, + DHCP6_LISTVAL_NUM, &num, 0)) { +- dprintf(LOG_INFO, FNAME, "duplicated " ++ debug_printf(LOG_INFO, FNAME, "duplicated " + "option type (%s)", + dhcp6optstr(opttype)); + goto nextoption; +@@ -1588,7 +1588,7 @@ dhcp6_get_options(p, ep, optinfo) + + if (dhcp6_add_listval(&optinfo->reqopt_list, + DHCP6_LISTVAL_NUM, &num, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy requested option"); + goto fail; + } +@@ -1599,10 +1599,10 @@ dhcp6_get_options(p, ep, optinfo) + case DH6OPT_PREFERENCE: + if (optlen != 1) + goto malformed; +- dprintf(LOG_DEBUG, "", " preference: %d", ++ debug_printf(LOG_DEBUG, "", " preference: %d", + (int)*(u_char *)cp); + if (optinfo->pref != DH6OPT_PREF_UNDEF) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated preference option"); + } else + optinfo->pref = (int)*(u_char *)cp; +@@ -1612,11 +1612,11 @@ dhcp6_get_options(p, ep, optinfo) + goto malformed; + memcpy(&val16, cp, sizeof(val16)); + val16 = ntohs(val16); +- dprintf(LOG_DEBUG, "", " elapsed time: %lu", ++ debug_printf(LOG_DEBUG, "", " elapsed time: %lu", + (u_int32_t)val16); + if (optinfo->elapsed_time != + DH6OPT_ELAPSED_TIME_UNDEF) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated elapsed time option"); + } else + optinfo->elapsed_time = val16; +@@ -1637,7 +1637,7 @@ dhcp6_get_options(p, ep, optinfo) + * [RFC3315 Section 21.4.2] + */ + if (optinfo->authproto != DHCP6_AUTHPROTO_UNDEF) { +- dprintf(LOG_INFO, FNAME, "found more than one " ++ debug_printf(LOG_INFO, FNAME, "found more than one " + "authentication option"); + goto fail; + } +@@ -1648,7 +1648,7 @@ dhcp6_get_options(p, ep, optinfo) + memcpy(&optinfo->authrd, cp, sizeof(optinfo->authrd)); + cp += sizeof(optinfo->authrd); + +- dprintf(LOG_DEBUG, "", " %s", sprint_auth(optinfo)); ++ debug_printf(LOG_DEBUG, "", " %s", sprint_auth(optinfo)); + + authinfolen = + optlen - (sizeof(struct dhcp6opt_auth) - 4); +@@ -1670,7 +1670,7 @@ dhcp6_get_options(p, ep, optinfo) + optinfo->delayedauth_realmval = + malloc(optinfo->delayedauth_realmlen); + if (optinfo->delayedauth_realmval == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed " ++ debug_printf(LOG_WARNING, FNAME, "failed " + "allocate memory for auth realm"); + goto fail; + } +@@ -1687,7 +1687,7 @@ dhcp6_get_options(p, ep, optinfo) + optinfo->delayedauth_offset = cp - bp; + cp += 16; + +- dprintf(LOG_DEBUG, "", " auth key ID: %x, " ++ debug_printf(LOG_DEBUG, "", " auth key ID: %x, " + "offset=%d, realmlen=%d", + optinfo->delayedauth_keyid, + optinfo->delayedauth_offset, +@@ -1698,7 +1698,7 @@ dhcp6_get_options(p, ep, optinfo) + break; + #endif + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unsupported authentication protocol: %d", + *cp); + goto fail; +@@ -1779,14 +1779,14 @@ dhcp6_get_options(p, ep, optinfo) + ia.t1 = ntohl(optia.dh6_ia_t1); + ia.t2 = ntohl(optia.dh6_ia_t2); + +- dprintf(LOG_DEBUG, "", ++ debug_printf(LOG_DEBUG, "", + " IA_PD: ID=%lu, T1=%lu, T2=%lu", + ia.iaid, ia.t1, ia.t2); + + /* duplication check */ + if (dhcp6_find_listval(&optinfo->iapd_list, + DHCP6_LISTVAL_IAPD, &ia, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated IA_PD %lu", ia.iaid); + break; /* ignore this IA_PD */ + } +@@ -1813,7 +1813,7 @@ dhcp6_get_options(p, ep, optinfo) + goto malformed; + memcpy(&val32, cp, sizeof(val32)); + val32 = ntohl(val32); +- dprintf(LOG_DEBUG, "", ++ debug_printf(LOG_DEBUG, "", + " information refresh time: %lu", val32); + if (val32 < DHCP6_IRT_MINIMUM) { + /* +@@ -1823,13 +1823,13 @@ dhcp6_get_options(p, ep, optinfo) + * [draft-ietf-dhc-lifetime-02.txt, + * Section 3.2] + */ +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "refresh time is too small (%d), adjusted", + val32); + val32 = DHCP6_IRT_MINIMUM; + } + if (optinfo->refreshtime != DH6OPT_REFRESHTIME_UNDEF) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated refresh time option"); + } else + optinfo->refreshtime = (int64_t)val32; +@@ -1843,14 +1843,14 @@ dhcp6_get_options(p, ep, optinfo) + ia.t1 = ntohl(optia.dh6_ia_t1); + ia.t2 = ntohl(optia.dh6_ia_t2); + +- dprintf(LOG_DEBUG, "", ++ debug_printf(LOG_DEBUG, "", + " IA_NA: ID=%lu, T1=%lu, T2=%lu", + ia.iaid, ia.t1, ia.t2); + + /* duplication check */ + if (dhcp6_find_listval(&optinfo->iana_list, + DHCP6_LISTVAL_IANA, &ia, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated IA_NA %lu", ia.iaid); + break; /* ignore this IA_NA */ + } +@@ -1874,7 +1874,7 @@ dhcp6_get_options(p, ep, optinfo) + break; + default: + /* no option specific behavior */ +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown or unexpected DHCP6 option %s, len %d", + dhcp6optstr(opt), optlen); + break; +@@ -1884,7 +1884,7 @@ dhcp6_get_options(p, ep, optinfo) + return (0); + + malformed: +- dprintf(LOG_INFO, FNAME, "malformed DHCP option: type %d, len %d", ++ debug_printf(LOG_INFO, FNAME, "malformed DHCP option: type %d, len %d", + opt, optlen); + fail: + dhcp6_clear_options(optinfo); +@@ -1967,11 +1967,11 @@ copyin_option(type, p, ep, list) + cp = (char *)(p + 1); + np = (struct dhcp6opt *)(cp + optlen); + +- dprintf(LOG_DEBUG, FNAME, "get DHCP option %s, len %d", ++ debug_printf(LOG_DEBUG, FNAME, "get DHCP option %s, len %d", + dhcp6optstr(opt), optlen); + + if (np > ep) { +- dprintf(LOG_INFO, FNAME, "malformed DHCP option"); ++ debug_printf(LOG_INFO, FNAME, "malformed DHCP option"); + goto fail; + } + +@@ -1979,7 +1979,7 @@ copyin_option(type, p, ep, list) + case DH6OPT_IA_PD_PREFIX: + /* check option context */ + if (type != DH6OPT_IA_PD) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s is an invalid position for %s", + dhcp6optstr(type), dhcp6optstr(opt)); + goto fail; +@@ -1991,7 +1991,7 @@ copyin_option(type, p, ep, list) + /* copy and convert option values */ + memcpy(&opt_iapd_prefix, p, sizeof(opt_iapd_prefix)); + if (opt_iapd_prefix.dh6_iapd_prefix_prefix_len > 128) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "invalid prefix length (%d)", + opt_iapd_prefix.dh6_iapd_prefix_prefix_len); + goto malformed; +@@ -2006,7 +2006,7 @@ copyin_option(type, p, ep, list) + /* clear padding bits in the prefix address */ + prefix6_mask(&iapd_prefix.addr, iapd_prefix.plen); + +- dprintf(LOG_DEBUG, FNAME, " IA_PD prefix: " ++ debug_printf(LOG_DEBUG, FNAME, " IA_PD prefix: " + "%s/%d pltime=%lu vltime=%lu", + in6addr2str(&iapd_prefix.addr, 0), + iapd_prefix.plen, +@@ -2014,7 +2014,7 @@ copyin_option(type, p, ep, list) + + if (dhcp6_find_listval(list, DHCP6_LISTVAL_PREFIX6, + &iapd_prefix, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated IA_PD prefix " + "%s/%d pltime=%lu vltime=%lu", + in6addr2str(&iapd_prefix.addr, 0), +@@ -2041,7 +2041,7 @@ copyin_option(type, p, ep, list) + case DH6OPT_IAADDR: + /* check option context */ + if (type != DH6OPT_IA_NA) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s is an invalid position for %s", + dhcp6optstr(type), dhcp6optstr(opt)); + goto fail; +@@ -2057,14 +2057,14 @@ copyin_option(type, p, ep, list) + memcpy(&ia_addr.addr, &opt_ia_addr.dh6_ia_addr_addr, + sizeof(ia_addr.addr)); + +- dprintf(LOG_DEBUG, FNAME, " IA_NA address: " ++ debug_printf(LOG_DEBUG, FNAME, " IA_NA address: " + "%s pltime=%lu vltime=%lu", + in6addr2str(&ia_addr.addr, 0), + ia_addr.pltime, ia_addr.vltime); + + if (dhcp6_find_listval(list, + DHCP6_LISTVAL_STATEFULADDR6, &ia_addr, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated IA_NA address" + "%s pltime=%lu vltime=%lu", + in6addr2str(&ia_addr.addr, 0), +@@ -2093,7 +2093,7 @@ copyin_option(type, p, ep, list) + type != DH6OPT_IA_PD_PREFIX && + type != DH6OPT_IA_NA && + type != DH6OPT_IAADDR) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s is an invalid position for %s", + dhcp6optstr(type), dhcp6optstr(opt)); + goto nextoption; /* or discard the message? */ +@@ -2107,13 +2107,13 @@ copyin_option(type, p, ep, list) + opt_stcode.dh6_stcode_code = + ntohs(opt_stcode.dh6_stcode_code); + +- dprintf(LOG_DEBUG, "", " status code: %s", ++ debug_printf(LOG_DEBUG, "", " status code: %s", + dhcp6_stcodestr(opt_stcode.dh6_stcode_code)); + + /* duplication check */ + if (dhcp6_find_listval(list, DHCP6_LISTVAL_STCODE, + &opt_stcode.dh6_stcode_code, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated status code (%d)", + opt_stcode.dh6_stcode_code); + goto nextoption; +@@ -2133,7 +2133,7 @@ copyin_option(type, p, ep, list) + return (0); + + malformed: +- dprintf(LOG_INFO, "", " malformed DHCP option: type %d", opt); ++ debug_printf(LOG_INFO, "", " malformed DHCP option: type %d", opt); + + fail: + dhcp6_clear_list(&sublist); +@@ -2221,7 +2221,7 @@ copy_option(type, len, val, optp, ep, totallenp) + struct dhcp6opt *opt = *optp, opth; + + if ((void *)ep - (void *)optp < len + sizeof(struct dhcp6opt)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "option buffer short for %s", dhcp6optstr(type)); + return (-1); + } +@@ -2233,7 +2233,7 @@ copy_option(type, len, val, optp, ep, totallenp) + + *optp = (struct dhcp6opt *)((char *)(opt + 1) + len); + *totallenp += sizeof(struct dhcp6opt) + len; +- dprintf(LOG_DEBUG, FNAME, "set %s (len %d)", dhcp6optstr(type), len); ++ debug_printf(LOG_DEBUG, FNAME, "set %s (len %d)", dhcp6optstr(type), len); + + return (0); + } +@@ -2269,21 +2269,21 @@ dhcp6_set_options(type, optbp, optep, optinfo) + + tmpbuf = NULL; + if ((optlen = copyout_option(NULL, NULL, op)) < 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to count option length"); + goto fail; + } + if ((void *)optep - (void *)p < optlen) { +- dprintf(LOG_INFO, FNAME, "short buffer"); ++ debug_printf(LOG_INFO, FNAME, "short buffer"); + goto fail; + } + if ((tmpbuf = malloc(optlen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "memory allocation failed for IA_NA options"); + goto fail; + } + if (copyout_option(tmpbuf, tmpbuf + optlen, op) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to construct an IA_NA option"); + goto fail; + } +@@ -2340,7 +2340,7 @@ dhcp6_set_options(type, optbp, optep, optinfo) + buflen = dhcp6_count_list(&optinfo->reqopt_list) * + sizeof(u_int16_t); + if ((tmpbuf = malloc(buflen)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation failed for options"); + goto fail; + } +@@ -2355,7 +2355,7 @@ dhcp6_set_options(type, optbp, optep, optinfo) + */ + if (opt->val_num == DH6OPT_REFRESHTIME && + type != DH6_INFORM_REQ) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "refresh time option is not requested " + "for %s", dhcp6msgstr(type)); + } +@@ -2423,21 +2423,21 @@ dhcp6_set_options(type, optbp, optep, optinfo) + + tmpbuf = NULL; + if ((optlen = copyout_option(NULL, NULL, op)) < 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to count option length"); + goto fail; + } + if ((void *)optep - (void *)p < optlen) { +- dprintf(LOG_INFO, FNAME, "short buffer"); ++ debug_printf(LOG_INFO, FNAME, "short buffer"); + goto fail; + } + if ((tmpbuf = malloc(optlen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "memory allocation failed for IA_PD options"); + goto fail; + } + if (copyout_option(tmpbuf, tmpbuf + optlen, op) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to construct an IA_PD option"); + goto fail; + } +@@ -2492,13 +2492,13 @@ dhcp6_set_options(type, optbp, optep, optinfo) + break; + #endif + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "unexpected authentication protocol"); + goto fail; + } + } + if ((auth = malloc(authlen)) == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed to allocate " ++ debug_printf(LOG_WARNING, FNAME, "failed to allocate " + "memory for authentication information"); + goto fail; + } +@@ -2534,7 +2534,7 @@ dhcp6_set_options(type, optbp, optep, optinfo) + optinfo->delayedauth_offset = + ((char *)p - (char *)optbp) + authlen - 16; + +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "key ID %x, offset %d", + optinfo->delayedauth_keyid, + optinfo->delayedauth_offset); +@@ -2543,7 +2543,7 @@ dhcp6_set_options(type, optbp, optep, optinfo) + case DHCP6_AUTHPROTO_RECONFIG: + #endif + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "unexpected authentication protocol"); + free(auth); + goto fail; +@@ -2695,7 +2695,7 @@ copyout_option(p, ep, optval) + * we encounter an unknown option. this should be an internal + * error. + */ +- dprintf(LOG_ERR, FNAME, "unknown option: code %d", ++ debug_printf(LOG_ERR, FNAME, "unknown option: code %d", + optval->type); + return (-1); + } +@@ -2721,7 +2721,7 @@ copyout_option(p, ep, optval) + if (!p) + return(optlen); + +- dprintf(LOG_DEBUG, FNAME, "set %s", dhcp6optstr(opttype)); ++ debug_printf(LOG_DEBUG, FNAME, "set %s", dhcp6optstr(opttype)); + if (ep - p < headlen) /* check it just in case */ + return (-1); + +@@ -2812,7 +2812,7 @@ dhcp6_set_timeoparam(ev) + ev->max_retrans_cnt = REL_MAX_RC; + break; + default: +- dprintf(LOG_ERR, FNAME, "unexpected event state %d on %s", ++ debug_printf(LOG_ERR, FNAME, "unexpected event state %d on %s", + ev->state, ev->ifp->ifname); + exit(1); + } +@@ -2870,7 +2870,7 @@ dhcp6_reset_timer(ev) + + statestr = dhcp6_event_statestr(ev); + +- dprintf(LOG_DEBUG, FNAME, "reset a timer on %s, " ++ debug_printf(LOG_DEBUG, FNAME, "reset a timer on %s, " + "state=%s, timeo=%d, retrans=%d", + ev->ifp->ifname, statestr, ev->timeouts, ev->retrans); + } +@@ -2881,7 +2881,7 @@ duidcpy(dd, ds) + { + dd->duid_len = ds->duid_len; + if ((dd->duid_id = malloc(dd->duid_len)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + return (-1); + } + memcpy(dd->duid_id, ds->duid_id, dd->duid_len); +@@ -2929,17 +2929,17 @@ get_rdvalue(rdm, rdvalue, rdsize) + u_int32_t u32, l32; + + if (rdm != DHCP6_AUTHRDM_MONOCOUNTER) { +- dprintf(LOG_INFO, FNAME, "unsupported RDM (%d)", rdm); ++ debug_printf(LOG_INFO, FNAME, "unsupported RDM (%d)", rdm); + return (-1); + } + if (rdsize != sizeof(u_int64_t)) { +- dprintf(LOG_INFO, FNAME, "unsupported RD size (%d)", rdsize); ++ debug_printf(LOG_INFO, FNAME, "unsupported RD size (%d)", rdsize); + return (-1); + } + + #if defined(HAVE_CLOCK_GETTIME) + if (clock_gettime(CLOCK_REALTIME, &tp)) { +- dprintf(LOG_WARNING, FNAME, "clock_gettime failed: %s", ++ debug_printf(LOG_WARNING, FNAME, "clock_gettime failed: %s", + strerror(errno)); + return (-1); + } +@@ -2952,7 +2952,7 @@ get_rdvalue(rdm, rdvalue, rdsize) + l32 = (u_int32_t)nsec; + #else + if (gettimeofday(&tv, NULL) != 0) { +- dprintf(LOG_WARNING, FNAME, "gettimeofday failed: %s", ++ debug_printf(LOG_WARNING, FNAME, "gettimeofday failed: %s", + strerror(errno)); + return (-1); + } +@@ -3207,7 +3207,7 @@ setloglevel(debuglevel) + } + + void +-dprintf(int level, const char *fname, const char *fmt, ...) ++debug_printf(int level, const char *fname, const char *fmt, ...) + { + va_list ap; + char logbuf[LINE_MAX]; +@@ -3293,7 +3293,7 @@ ifaddrconf(cmd, ifname, addr, plen, pltime, vltime) + } + + if ((s = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP)) < 0) { +- dprintf(LOG_ERR, FNAME, "can't open a temporary socket: %s", ++ debug_printf(LOG_ERR, FNAME, "can't open a temporary socket: %s", + strerror(errno)); + return (-1); + } +@@ -3311,7 +3311,7 @@ ifaddrconf(cmd, ifname, addr, plen, pltime, vltime) + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, ifname, IFNAMSIZ - 1); + if (ioctl(s, SIOGIFINDEX, &ifr) < 0) { +- dprintf(LOG_NOTICE, FNAME, "failed to get the index of %s: %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to get the index of %s: %s", + ifname, strerror(errno)); + close(s); + return (-1); +@@ -3325,7 +3325,7 @@ ifaddrconf(cmd, ifname, addr, plen, pltime, vltime) + #endif + + if (ioctl(s, ioctl_cmd, &req)) { +- dprintf(LOG_NOTICE, FNAME, "failed to %s an address on %s: %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to %s an address on %s: %s", + cmdstr, ifname, strerror(errno)); + close(s); + return (-1); +@@ -3334,14 +3334,14 @@ ifaddrconf(cmd, ifname, addr, plen, pltime, vltime) + #ifdef __sun__ + memcpy(&req.lifr_addr, addr, sizeof (*addr)); + if (ioctl(s, SIOCSLIFADDR, &req) == -1) { +- dprintf(LOG_NOTICE, FNAME, "failed to %s new address on %s: %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to %s new address on %s: %s", + cmdstr, ifname, strerror(errno)); + close(s); + return (-1); + } + #endif + +- dprintf(LOG_DEBUG, FNAME, "%s an address %s/%d on %s", cmdstr, ++ debug_printf(LOG_DEBUG, FNAME, "%s an address %s/%d on %s", cmdstr, + addr2str((struct sockaddr *)addr), plen, ifname); + + close(s); +@@ -3357,13 +3357,13 @@ safefile(path) + + /* no setuid */ + if (getuid() != geteuid()) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "setuid'ed execution not allowed"); + return (-1); + } + + if (lstat(path, &s) != 0) { +- dprintf(LOG_NOTICE, FNAME, "lstat failed: %s", ++ debug_printf(LOG_NOTICE, FNAME, "lstat failed: %s", + strerror(errno)); + return (-1); + } +@@ -3371,7 +3371,7 @@ safefile(path) + /* the file must be owned by the running uid */ + myuid = getuid(); + if (s.st_uid != myuid) { +- dprintf(LOG_NOTICE, FNAME, "%s has invalid owner uid", path); ++ debug_printf(LOG_NOTICE, FNAME, "%s has invalid owner uid", path); + return (-1); + } + +@@ -3379,7 +3379,7 @@ safefile(path) + case S_IFREG: + break; + default: +- dprintf(LOG_NOTICE, FNAME, "%s is an invalid file type 0x%o", ++ debug_printf(LOG_NOTICE, FNAME, "%s is an invalid file type 0x%o", + path, (s.st_mode & S_IFMT)); + return (-1); + } +diff --git a/common.h b/common.h +index 7366c25..9fd8008 100644 +--- a/common.h ++++ b/common.h +@@ -155,7 +155,7 @@ extern char *in6addr2str __P((struct in6_addr *, int)); + extern int in6_addrscopebyif __P((struct in6_addr *, char *)); + extern int in6_scope __P((struct in6_addr *)); + extern void setloglevel __P((int)); +-extern void dprintf __P((int, const char *, const char *, ...)); ++extern void debug_printf __P((int, const char *, const char *, ...)); + extern int get_duid __P((char *, struct duid *)); + extern void dhcp6_init_options __P((struct dhcp6_optinfo *)); + extern void dhcp6_clear_options __P((struct dhcp6_optinfo *)); +diff --git a/config.c b/config.c +index 383c12a..3721545 100644 +--- a/config.c ++++ b/config.c +@@ -156,13 +156,13 @@ configure_interface(iflist) + struct cf_list *cfl; + + if (if_nametoindex(ifp->name) == 0) { +- dprintf(LOG_ERR, FNAME, "invalid interface(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "invalid interface(%s): %s", + ifp->name, strerror(errno)); + goto bad; + } + + if ((ifc = malloc(sizeof(*ifc))) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation for %s failed", ifp->name); + goto bad; + } +@@ -171,7 +171,7 @@ configure_interface(iflist) + dhcp6_ifconflist = ifc; + + if ((ifc->ifname = strdup(ifp->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy ifname"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy ifname"); + goto bad; + } + +@@ -183,7 +183,7 @@ configure_interface(iflist) + switch(cfl->type) { + case DECL_REQUEST: + if (dhcp6_mode != DHCP6_MODE_CLIENT) { +- dprintf(LOG_INFO, FNAME, "%s:%d " ++ debug_printf(LOG_INFO, FNAME, "%s:%d " + "client-only configuration", + configfilename, + cfl->line); +@@ -208,7 +208,7 @@ configure_interface(iflist) + break; + case DECL_INFO_ONLY: + if (dhcp6_mode != DHCP6_MODE_CLIENT) { +- dprintf(LOG_INFO, FNAME, "%s:%d " ++ debug_printf(LOG_INFO, FNAME, "%s:%d " + "client-only configuration", + configfilename, cfl->line); + goto bad; +@@ -217,7 +217,7 @@ configure_interface(iflist) + break; + case DECL_PREFERENCE: + if (dhcp6_mode != DHCP6_MODE_SERVER) { +- dprintf(LOG_INFO, FNAME, "%s:%d " ++ debug_printf(LOG_INFO, FNAME, "%s:%d " + "server-only configuration", + configfilename, cfl->line); + goto bad; +@@ -225,7 +225,7 @@ configure_interface(iflist) + ifc->server_pref = (int)cfl->num; + if (ifc->server_pref < 0 || + ifc->server_pref > 255) { +- dprintf(LOG_INFO, FNAME, "%s:%d " ++ debug_printf(LOG_INFO, FNAME, "%s:%d " + "bad value: %d", + configfilename, cfl->line, + ifc->server_pref); +@@ -234,13 +234,13 @@ configure_interface(iflist) + break; + case DECL_SCRIPT: + if (dhcp6_mode != DHCP6_MODE_CLIENT) { +- dprintf(LOG_INFO, FNAME, "%s:%d " ++ debug_printf(LOG_INFO, FNAME, "%s:%d " + "client-only configuration", + configfilename, cfl->line); + goto bad; + } + if (ifc->scriptpath) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s:%d duplicated configuration", + configfilename, cfl->line); + goto bad; +@@ -248,13 +248,13 @@ configure_interface(iflist) + cp = cfl->ptr; + ifc->scriptpath = strdup(cp + 1); + if (ifc->scriptpath == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to copy script path"); + goto bad; + } + cp = ifc->scriptpath; + if (*cp != '/') { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "script must be an absolute path"); + goto bad; + } +@@ -272,7 +272,7 @@ configure_interface(iflist) + if (strcmp(spec->name, pool->name) == 0) + break; + if (pool == NULL) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "pool '%s' not found", + configfilename, cfl->line, + spec->name); +@@ -281,7 +281,7 @@ configure_interface(iflist) + if (spec->vltime != DHCP6_DURATION_INFINITE && + (spec->pltime == DHCP6_DURATION_INFINITE || + spec->pltime > spec->vltime)) { +- dprintf(LOG_ERR, FNAME, "%s:%d ", ++ debug_printf(LOG_ERR, FNAME, "%s:%d ", + configfilename, cfl->line, + "specified a larger preferred lifetime " + "than valid lifetime"); +@@ -289,17 +289,17 @@ configure_interface(iflist) + } + ifc->pool = *spec; + if ((ifc->pool.name = strdup(spec->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation failed"); + goto bad; + } +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "pool '%s' is specified to the interface '%s'", + ifc->pool.name, ifc->ifname); + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid interface configuration", + configfilename, cfl->line); + goto bad; +@@ -338,7 +338,7 @@ configure_ia(ialist, iatype) + confsize = sizeof(struct iana_conf); + break; + default: +- dprintf(LOG_ERR, FNAME, "internal error"); ++ debug_printf(LOG_ERR, FNAME, "internal error"); + goto bad; + } + +@@ -346,7 +346,7 @@ configure_ia(ialist, iatype) + struct cf_list *cfl; + + if ((iac = malloc(confsize)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation for IA %s failed", + iap->name); + goto bad; +@@ -386,13 +386,13 @@ configure_ia(ialist, iatype) + if (add_prefix(&pdp->iapd_prefix_list, + "IAPD", DHCP6_LISTVAL_PREFIX6, + cfl->ptr)) { +- dprintf(LOG_NOTICE, FNAME, "failed " ++ debug_printf(LOG_NOTICE, FNAME, "failed " + "to configure prefix"); + goto bad; + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid configuration", + configfilename, cfl->line); + goto bad; +@@ -404,20 +404,20 @@ configure_ia(ialist, iatype) + if (add_prefix(&nap->iana_address_list, + "IANA", DHCP6_LISTVAL_STATEFULADDR6, + cfl->ptr)) { +- dprintf(LOG_NOTICE, FNAME, "failed " ++ debug_printf(LOG_NOTICE, FNAME, "failed " + "to configure address"); + goto bad; + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid configuration", + configfilename, cfl->line); + goto bad; + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid iatype %d", + configfilename, cfl->line, iatype); + goto bad; +@@ -443,7 +443,7 @@ add_pd_pif(iapdc, cfl0) + for (pif = TAILQ_FIRST(&iapdc->iapd_pif_list); pif; + pif = TAILQ_NEXT(pif, link)) { + if (strcmp(pif->ifname, cfl0->ptr) == 0) { +- dprintf(LOG_NOTICE, FNAME, "%s:%d " ++ debug_printf(LOG_NOTICE, FNAME, "%s:%d " + "duplicated prefix interface: %s", + configfilename, cfl0->line, cfl0->ptr); + return (0); /* ignore it */ +@@ -451,7 +451,7 @@ add_pd_pif(iapdc, cfl0) + } + + if ((pif = malloc(sizeof(*pif))) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation for %s failed", cfl0->ptr); + goto bad; + } +@@ -459,20 +459,20 @@ add_pd_pif(iapdc, cfl0) + + /* validate and copy ifname */ + if (if_nametoindex(cfl0->ptr) == 0) { +- dprintf(LOG_ERR, FNAME, "%s:%d invalid interface (%s): %s", ++ debug_printf(LOG_ERR, FNAME, "%s:%d invalid interface (%s): %s", + configfilename, cfl0->line, + cfl0->ptr, strerror(errno)); + goto bad; + } + if ((pif->ifname = strdup(cfl0->ptr)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy ifname"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy ifname"); + goto bad; + } + + pif->ifid_len = IFID_LEN_DEFAULT; + pif->sla_len = SLA_LEN_DEFAULT; + if (get_default_ifid(pif)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to get default IF ID for %s", pif->ifname); + goto bad; + } +@@ -485,14 +485,14 @@ add_pd_pif(iapdc, cfl0) + case IFPARAM_SLA_LEN: + pif->sla_len = (int)cfl->num; + if (pif->sla_len < 0 || pif->sla_len > 128) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid SLA length: %d", + configfilename, cfl->line, pif->sla_len); + goto bad; + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d internal error: " ++ debug_printf(LOG_ERR, FNAME, "%s:%d internal error: " + "invalid configuration", + configfilename, cfl->line); + goto bad; +@@ -520,7 +520,7 @@ configure_host(hostlist) + struct cf_list *cfl; + + if ((hconf = malloc(sizeof(*hconf))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed " ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed " + "for host %s", host->name); + goto bad; + } +@@ -531,7 +531,7 @@ configure_host(hostlist) + host_conflist0 = hconf; + + if ((hconf->name = strdup(host->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy host name: %s", ++ debug_printf(LOG_ERR, FNAME, "failed to copy host name: %s", + host->name); + goto bad; + } +@@ -540,7 +540,7 @@ configure_host(hostlist) + switch(cfl->type) { + case DECL_DUID: + if (hconf->duid.duid_id) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "duplicated DUID for %s", + configfilename, + cfl->line, host->name); +@@ -548,14 +548,14 @@ configure_host(hostlist) + } + if ((configure_duid((char *)cfl->ptr, + &hconf->duid)) != 0) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "failed to configure " + "DUID for %s", + configfilename, cfl->line, + host->name); + goto bad; + } +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "configure DUID for %s: %s", + host->name, duidstr(&hconf->duid)); + break; +@@ -563,7 +563,7 @@ configure_host(hostlist) + if (add_prefix(&hconf->prefix_list, + hconf->name, DHCP6_LISTVAL_PREFIX6, + cfl->ptr)) { +- dprintf(LOG_ERR, FNAME, "failed " ++ debug_printf(LOG_ERR, FNAME, "failed " + "to configure prefix for %s", + host->name); + goto bad; +@@ -573,7 +573,7 @@ configure_host(hostlist) + if (add_prefix(&hconf->addr_list, + hconf->name, DHCP6_LISTVAL_STATEFULADDR6, + cfl->ptr)) { +- dprintf(LOG_ERR, FNAME, "failed " ++ debug_printf(LOG_ERR, FNAME, "failed " + "to configure address for %s", + host->name); + goto bad; +@@ -581,7 +581,7 @@ configure_host(hostlist) + break; + case DECL_DELAYEDKEY: + if (hconf->delayedkey != NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d: duplicate key %s for %s" + " (ignored)", configfilename, + cfl->line, cfl->ptr, host->name); +@@ -590,12 +590,12 @@ configure_host(hostlist) + if ((hconf->delayedkey = + find_keybyname(key_list0, cfl->ptr)) + == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to " ++ debug_printf(LOG_ERR, FNAME, "failed to " + "find key information for %s", + cfl->ptr); + goto bad; + } +- dprintf(LOG_DEBUG, FNAME, "configure key for " ++ debug_printf(LOG_DEBUG, FNAME, "configure key for " + "delayed auth with %s (keyid=%08x)", + host->name, hconf->delayedkey->keyid); + break; +@@ -610,7 +610,7 @@ configure_host(hostlist) + if (strcmp(spec->name, pool->name) == 0) + break; + if (pool == NULL) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "pool '%s' not found", + configfilename, cfl->line, + spec->name); +@@ -619,7 +619,7 @@ configure_host(hostlist) + if (spec->vltime != DHCP6_DURATION_INFINITE && + (spec->pltime == DHCP6_DURATION_INFINITE || + spec->pltime > spec->vltime)) { +- dprintf(LOG_ERR, FNAME, "%s:%d ", ++ debug_printf(LOG_ERR, FNAME, "%s:%d ", + configfilename, cfl->line, + "specified a larger preferred lifetime " + "than valid lifetime"); +@@ -627,17 +627,17 @@ configure_host(hostlist) + } + hconf->pool = *spec; + if ((hconf->pool.name = strdup(spec->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "memory allocation failed"); + goto bad; + } +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "pool '%s' is specified to the host '%s'", + hconf->pool.name, hconf->name); + } + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid host configuration for %s", + configfilename, cfl->line, + host->name); +@@ -669,7 +669,7 @@ configure_keys(keylist) + struct cf_list *cfl; + + if ((kinfo = malloc(sizeof(*kinfo))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed " ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed " + "for key %s", key->name); + goto bad; + } +@@ -678,7 +678,7 @@ configure_keys(keylist) + key_list0 = kinfo; + + if ((kinfo->name = strdup(key->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy key name: %s", ++ debug_printf(LOG_ERR, FNAME, "failed to copy key name: %s", + key->name); + goto bad; + } +@@ -689,7 +689,7 @@ configure_keys(keylist) + switch (cfl->type) { + case KEYPARAM_REALM: + if (kinfo->realm != NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate realm for key %s " + "(ignored)", configfilename, + cfl->line, key->name); +@@ -697,7 +697,7 @@ configure_keys(keylist) + } + kinfo->realm = qstrdup(cfl->ptr); + if (kinfo->realm == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to allocate memory for " + "realm"); + goto bad; +@@ -706,7 +706,7 @@ configure_keys(keylist) + break; + case KEYPARAM_KEYID: + if (keyid != -1) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate realm for key %s " + "(ignored)", + configfilename, cfl->line); +@@ -714,7 +714,7 @@ configure_keys(keylist) + } + keyid = cfl->num; + if (keyid < 0 || keyid > 0xffffffff) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d key ID overflow", + configfilename, cfl->line); + goto bad; +@@ -723,7 +723,7 @@ configure_keys(keylist) + case KEYPARAM_SECRET: + /* duplicate check */ + if (kinfo->secret != NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate secret " + "for key %s (ignored)", + configfilename, cfl->line, +@@ -733,7 +733,7 @@ configure_keys(keylist) + + /* convert base64 string to binary secret */ + if ((secretstr = qstrdup(cfl->ptr)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to make a copy of secret"); + goto bad; + } +@@ -741,7 +741,7 @@ configure_keys(keylist) + secretlen = base64_decodestring(secretstr, + secret, sizeof(secret)); + if (secretlen < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "%s:%d failed to parse base64 key", + configfilename, cfl->line); + free(secretstr); +@@ -752,7 +752,7 @@ configure_keys(keylist) + /* set the binary secret */ + kinfo->secret = malloc(secretlen); + if (kinfo->secret == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to allocate memory " + "for secret"); + goto bad; +@@ -762,7 +762,7 @@ configure_keys(keylist) + break; + case KEYPARAM_EXPIRE: + if (expire != NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate expire for key " + "%s (ignored)", configfilename, + cfl->line, key->name); +@@ -771,7 +771,7 @@ configure_keys(keylist) + expire = qstrdup(cfl->ptr); + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "%s:%d invalid key parameter for %s", + configfilename, cfl->line, key->name); + goto bad; +@@ -780,18 +780,18 @@ configure_keys(keylist) + + /* check for mandatory parameters or use default */ + if (kinfo->realm == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "realm not specified for key %s", key->name); + goto bad; + } + if (keyid == -1) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "key ID not specified for key %s", key->name); + goto bad; + } + kinfo->keyid = keyid; + if (kinfo->secret == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "secret not specified for key %s", key->name); + goto bad; + } +@@ -802,7 +802,7 @@ configure_keys(keylist) + struct tm *lt; + + if (time(&now) == -1) { +- dprintf(LOG_ERR, FNAME, "cannot get " ++ debug_printf(LOG_ERR, FNAME, "cannot get " + "current time: %s", + strerror(errno)); + goto bad; +@@ -815,14 +815,14 @@ configure_keys(keylist) + strptime(expire, "%m-%d %H:%M", lt) + == NULL && + strptime(expire, "%H:%M", lt) == NULL) { +- dprintf(LOG_ERR, FNAME, "invalid " ++ debug_printf(LOG_ERR, FNAME, "invalid " + "expiration time: %s"); + goto bad; + } + + expire_time = mktime(lt); + if (expire_time < now) { +- dprintf(LOG_ERR, FNAME, "past " ++ debug_printf(LOG_ERR, FNAME, "past " + "expiration time specified: %s", + expire); + goto bad; +@@ -867,7 +867,7 @@ configure_authinfo(authlist) + struct cf_list *cfl; + + if ((ainfo = malloc(sizeof(*ainfo))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed " ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed " + "for auth info %s", auth->name); + goto bad; + } +@@ -879,7 +879,7 @@ configure_authinfo(authlist) + ainfo->rdm = DHCP6_AUTHRDM_UNDEF; + + if ((ainfo->name = strdup(auth->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy auth info name: %s", auth->name); + goto bad; + } +@@ -888,7 +888,7 @@ configure_authinfo(authlist) + switch (cfl->type) { + case AUTHPARAM_PROTO: + if (ainfo->protocol != DHCP6_AUTHPROTO_UNDEF) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate protocol " + "for auth info %s " + "(ignored)", +@@ -900,7 +900,7 @@ configure_authinfo(authlist) + break; + case AUTHPARAM_ALG: + if (ainfo->algorithm != DHCP6_AUTHALG_UNDEF) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate algorithm " + "for auth info %s " + "(ignored)", +@@ -912,7 +912,7 @@ configure_authinfo(authlist) + break; + case AUTHPARAM_RDM: + if (ainfo->rdm != DHCP6_AUTHRDM_UNDEF) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d duplicate RDM " + "for auth info %s " + "(ignored)", +@@ -923,13 +923,13 @@ configure_authinfo(authlist) + ainfo->rdm = (int)cfl->num; + break; + case AUTHPARAM_KEY: +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "%s:%d auth info specific keys " + "are not supported", + configfilename, cfl->line); + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "%s:%d invalid auth info parameter for %s", + configfilename, cfl->line, auth->name); + goto bad; +@@ -939,20 +939,20 @@ configure_authinfo(authlist) + /* check for mandatory parameters and consistency */ + switch (ainfo->protocol) { + case DHCP6_AUTHPROTO_UNDEF: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "auth protocol is not specified for %s", + auth->name); + goto bad; + case DHCP6_AUTHPROTO_DELAYED: + if (dhcp6_mode != DHCP6_MODE_CLIENT) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "client-only auth protocol is specified"); + goto bad; + } + break; + case DHCP6_AUTHPROTO_RECONFIG: + if (dhcp6_mode != DHCP6_MODE_SERVER) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "server-only auth protocol is specified"); + goto bad; + } +@@ -1039,7 +1039,7 @@ configure_addr(cf_addr_list, list0, optname) + + /* check against configuration restriction */ + if (cf_addr_list != NULL && dhcp6_mode != DHCP6_MODE_SERVER) { +- dprintf(LOG_INFO, FNAME, "%s:%d server-only configuration", ++ debug_printf(LOG_INFO, FNAME, "%s:%d server-only configuration", + configfilename, cf_addr_list->line); + return -1; + } +@@ -1049,7 +1049,7 @@ configure_addr(cf_addr_list, list0, optname) + /* duplication check */ + if (dhcp6_find_listval(list0, DHCP6_LISTVAL_ADDR6, + cl->ptr, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s:%d duplicated %s server: %s", + configfilename, cl->line, + optname, +@@ -1058,7 +1058,7 @@ configure_addr(cf_addr_list, list0, optname) + } + if (dhcp6_add_listval(list0, DHCP6_LISTVAL_ADDR6, + cl->ptr, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a %s server", ++ debug_printf(LOG_ERR, FNAME, "failed to add a %s server", + optname); + return -1; + } +@@ -1077,7 +1077,7 @@ configure_domain(cf_name_list, list0, optname) + + /* check against configuration restriction */ + if (cf_name_list != NULL && dhcp6_mode != DHCP6_MODE_SERVER) { +- dprintf(LOG_INFO, FNAME, "%s:%d server-only configuration", ++ debug_printf(LOG_INFO, FNAME, "%s:%d server-only configuration", + configfilename, cf_name_list->line); + return -1; + } +@@ -1089,7 +1089,7 @@ configure_domain(cf_name_list, list0, optname) + + name = strdup(cl->ptr + 1); + if (name == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy a %s domain name", + optname); + return -1; +@@ -1103,7 +1103,7 @@ configure_domain(cf_name_list, list0, optname) + /* duplication check */ + if (dhcp6_find_listval(list0, DHCP6_LISTVAL_VBUF, + &name_vbuf, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s:%d duplicated %s name: %s", + configfilename, cl->line, optname, + name_vbuf.dv_buf); +@@ -1114,7 +1114,7 @@ configure_domain(cf_name_list, list0, optname) + /* add the name */ + if (dhcp6_add_listval(list0, DHCP6_LISTVAL_VBUF, + &name_vbuf, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a %s name", ++ debug_printf(LOG_ERR, FNAME, "failed to add a %s name", + optname); + dhcp6_vbuf_free(&name_vbuf); + return -1; +@@ -1145,12 +1145,12 @@ configure_duid(str, duid) + goto bad; + duidlen += (slen / 3); + if (duidlen > 128) { +- dprintf(LOG_ERR, FNAME, "too long DUID (%d)", duidlen); ++ debug_printf(LOG_ERR, FNAME, "too long DUID (%d)", duidlen); + return (-1); + } + + if ((idbuf = malloc(duidlen)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + return (-1); + } + +@@ -1175,7 +1175,7 @@ configure_duid(str, duid) + bad: + if (idbuf) + free(idbuf); +- dprintf(LOG_ERR, FNAME, "assumption failure (bad string)"); ++ debug_printf(LOG_ERR, FNAME, "assumption failure (bad string)"); + return (-1); + } + +@@ -1193,12 +1193,12 @@ get_default_ifid(pif) + #endif + + if (pif->ifid_len < 64) { +- dprintf(LOG_NOTICE, FNAME, "ID length too short"); ++ debug_printf(LOG_NOTICE, FNAME, "ID length too short"); + return (-1); + } + + if (getifaddrs(&ifap) < 0) { +- dprintf(LOG_ERR, FNAME, "getifaddrs failed: %s", ++ debug_printf(LOG_ERR, FNAME, "getifaddrs failed: %s", + strerror(errno)); + return (-1); + } +@@ -1218,7 +1218,7 @@ get_default_ifid(pif) + + sdl = (struct sockaddr_dl *)ifa->ifa_addr; + if (sdl->sdl_alen < 6) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "link layer address is too short (%s)", + pif->ifname); + goto fail; +@@ -1233,7 +1233,7 @@ get_default_ifid(pif) + + sll = (struct sockaddr_ll *)ifa->ifa_addr; + if (sll->sll_halen < 6) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "link layer address is too short (%s)", + pif->ifname); + goto fail; +@@ -1256,7 +1256,7 @@ get_default_ifid(pif) + } + + if (ifa == NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "cannot find interface information for %s", pif->ifname); + goto fail; + } +@@ -1352,7 +1352,7 @@ configure_commit() + + /* clear unused IA configuration */ + if (!TAILQ_EMPTY(&ia_conflist0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "some IA configuration defined but not used"); + } + clear_iaconf(&ia_conflist0); +@@ -1475,7 +1475,7 @@ clear_iaconf(ialist) + switch(iac->type) { + case IATYPE_PD: + if (!TAILQ_EMPTY(&iac->iadata)) { +- dprintf(LOG_ERR, FNAME, "assumption failure"); ++ debug_printf(LOG_ERR, FNAME, "assumption failure"); + exit(1); + } + clear_pd_pif((struct iapd_conf *)iac); +@@ -1557,7 +1557,7 @@ add_options(opcode, ifc, cfl0) + ifc->allow_flags |= DHCIFF_RAPID_COMMIT; + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid operation (%d) " + "for option type (%d)", + opcode, cfl->type); +@@ -1566,7 +1566,7 @@ add_options(opcode, ifc, cfl0) + break; + case DHCPOPT_AUTHINFO: + if (opcode != DHCPOPTCODE_SEND) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid operation (%d) " + "for option type (%d)", + opcode, cfl->type); +@@ -1574,14 +1574,14 @@ add_options(opcode, ifc, cfl0) + } + ainfo = find_authinfo(auth_list0, cfl->ptr); + if (ainfo == NULL) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "auth info (%s) is not defined", + configfilename, cfl->line, + (char *)cfl->ptr); + return (-1); + } + if (ifc->authinfo != NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "%s:%d authinfo is doubly specified on %s", + configfilename, cfl->line, ifc->ifname); + return (-1); +@@ -1594,7 +1594,7 @@ add_options(opcode, ifc, cfl0) + iac = find_iaconf(&ia_conflist0, IATYPE_PD, + (u_int32_t)cfl->num); + if (iac == NULL) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "IA_PD (%lu) is not defined", + configfilename, cfl->line, + (u_long)cfl->num); +@@ -1607,7 +1607,7 @@ add_options(opcode, ifc, cfl0) + + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid operation (%d) " + "for option type (%d)", opcode, cfl->type); + break; +@@ -1619,7 +1619,7 @@ add_options(opcode, ifc, cfl0) + iac = find_iaconf(&ia_conflist0, IATYPE_NA, + (u_int32_t)cfl->num); + if (iac == NULL) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "IA_NA (%lu) is not defined", + configfilename, cfl->line, + (u_long)cfl->num); +@@ -1632,7 +1632,7 @@ add_options(opcode, ifc, cfl0) + + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid operation (%d) " + "for option type (%d)", opcode, cfl->type); + break; +@@ -1693,7 +1693,7 @@ add_options(opcode, ifc, cfl0) + if (dhcp6_find_listval(&ifc->reqopt_list, + DHCP6_LISTVAL_NUM, &opttype, 0) + != NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "duplicated requested option: %s", + dhcp6optstr(opttype)); + goto next; /* ignore it */ +@@ -1701,20 +1701,20 @@ add_options(opcode, ifc, cfl0) + if (dhcp6_add_listval(&ifc->reqopt_list, + DHCP6_LISTVAL_NUM, &opttype, NULL) + == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to " ++ debug_printf(LOG_ERR, FNAME, "failed to " + "configure an option"); + return (-1); + } + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid operation (%d) " + "for option type (%d)", opcode, cfl->type); + break; + } + break; + default: +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "%s:%d unsupported option type: %d", + configfilename, cfl->line, cfl->type); + return (-1); +@@ -1740,13 +1740,13 @@ add_prefix(head, name, type, prefix0) + + /* additional validation of parameters */ + if (oprefix.plen < 0 || oprefix.plen > 128) { +- dprintf(LOG_ERR, FNAME, "invalid prefix: %d", oprefix.plen); ++ debug_printf(LOG_ERR, FNAME, "invalid prefix: %d", oprefix.plen); + return (-1); + } + /* clear trailing bits */ + prefix6_mask(&oprefix.addr, oprefix.plen); + if (!IN6_ARE_ADDR_EQUAL(&prefix0->addr, &oprefix.addr)) { +- dprintf(LOG_WARNING, FNAME, "prefix %s/%d for %s " ++ debug_printf(LOG_WARNING, FNAME, "prefix %s/%d for %s " + "has a trailing garbage. It should be %s/%d", + in6addr2str(&prefix0->addr, 0), prefix0->plen, + name, in6addr2str(&oprefix.addr, 0), oprefix.plen); +@@ -1757,7 +1757,7 @@ add_prefix(head, name, type, prefix0) + if (IN6_IS_ADDR_MULTICAST(&oprefix.addr) || + IN6_IS_ADDR_LINKLOCAL(&oprefix.addr) || + IN6_IS_ADDR_SITELOCAL(&oprefix.addr)) { +- dprintf(LOG_ERR, FNAME, "invalid prefix address: %s", ++ debug_printf(LOG_ERR, FNAME, "invalid prefix address: %s", + in6addr2str(&oprefix.addr, 0)); + return (-1); + } +@@ -1765,11 +1765,11 @@ add_prefix(head, name, type, prefix0) + /* prefix duplication check */ + if (dhcp6_find_listval(head, type, &oprefix, 0)) { + if (type == DHCP6_LISTVAL_PREFIX6) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "duplicated prefix: %s/%d for %s", + in6addr2str(&oprefix.addr, 0), oprefix.plen, name); + } else { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "duplicated address: %s for %s", + in6addr2str(&oprefix.addr, 0), name); + } +@@ -1781,12 +1781,12 @@ add_prefix(head, name, type, prefix0) + (oprefix.pltime == DHCP6_DURATION_INFINITE || + oprefix.pltime > oprefix.vltime)) { + if (type == DHCP6_LISTVAL_PREFIX6) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "%s/%d has larger preferred lifetime " + "than valid lifetime", + in6addr2str(&oprefix.addr, 0), oprefix.plen); + } else { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "%s has larger preferred lifetime " + "than valid lifetime", + in6addr2str(&oprefix.addr, 0)); +@@ -1915,10 +1915,10 @@ configure_pool(poollist) + { + struct cf_namelist *plp; + +- dprintf(LOG_DEBUG, FNAME, "called"); ++ debug_printf(LOG_DEBUG, FNAME, "called"); + + if (poollist && dhcp6_mode != DHCP6_MODE_SERVER) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "pool statement is server-only", + configfilename, poollist->line); + goto bad; +@@ -1935,7 +1935,7 @@ configure_pool(poollist) + range = cfl->ptr; + break; + default: +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "invalid pool configuration", + configfilename, cfl->line); + goto bad; +@@ -1943,14 +1943,14 @@ configure_pool(poollist) + } + + if (!range) { +- dprintf(LOG_ERR, FNAME, "%s:%d " ++ debug_printf(LOG_ERR, FNAME, "%s:%d " + "pool '%s' has no range declaration", + configfilename, plp->line, + plp->name); + goto bad; + } + if ((pool = create_pool(plp->name, range)) == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "faled to craete pool '%s'", plp->name); + goto bad; + } +@@ -1971,7 +1971,7 @@ clear_poolconf(plist) + { + struct pool_conf *pool, *pool_next; + +- dprintf(LOG_DEBUG, FNAME, "called"); ++ debug_printf(LOG_DEBUG, FNAME, "called"); + + for (pool = plist; pool; pool = pool_next) { + pool_next = pool->next; +@@ -1999,7 +1999,7 @@ create_dynamic_hostconf(duid, pool) + if (dynamic_hostconf_count >= DHCP6_DYNAMIC_HOSTCONF_MAX) { + struct dynamic_hostconf_listhead *head = &dynamic_hostconf_head; + +- dprintf(LOG_DEBUG, FNAME, "reached to the max count (count=%lu)", ++ debug_printf(LOG_DEBUG, FNAME, "reached to the max count (count=%lu)", + dynamic_hostconf_count); + + /* Find the last entry that doesn't need authentication */ +@@ -2013,14 +2013,14 @@ create_dynamic_hostconf(duid, pool) + clear_hostconf(dynconf->host); + } else { + if ((dynconf = malloc(sizeof(*dynconf))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + return (NULL); + } + } + memset(dynconf, 0, sizeof(*dynconf)); + + if ((host = malloc(sizeof(*host))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + goto bad; + } + memset(host, 0, sizeof(*host)); +@@ -2030,7 +2030,7 @@ create_dynamic_hostconf(duid, pool) + if ((strid = duidstr(duid)) == NULL) + strid = "???"; + if ((host->name = strdup(strid)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + goto bad; + } + if (duidcpy(&host->duid, duid) != 0) { +@@ -2038,7 +2038,7 @@ create_dynamic_hostconf(duid, pool) + } + if (pool->name) { + if ((host->pool.name = strdup(pool->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + goto bad; + } + } +@@ -2049,7 +2049,7 @@ create_dynamic_hostconf(duid, pool) + TAILQ_INSERT_HEAD(&dynamic_hostconf_head, dynconf, link); + dynamic_hostconf_count++; + +- dprintf(LOG_DEBUG, FNAME, "created host_conf (name=%s)", host->name); ++ debug_printf(LOG_DEBUG, FNAME, "created host_conf (name=%s)", host->name); + + return (host); + +@@ -2097,22 +2097,22 @@ create_pool(name, range) + return (NULL); + } + +- dprintf(LOG_DEBUG, FNAME, "name=%s, range=%s->%s", name, ++ debug_printf(LOG_DEBUG, FNAME, "name=%s, range=%s->%s", name, + in6addr2str(&range->min, 0), in6addr2str(&range->max, 0)); + + if (in6_addr_cmp(&range->min, &range->max) > 0) { +- dprintf(LOG_ERR, FNAME, "invalid address range %s->%s", ++ debug_printf(LOG_ERR, FNAME, "invalid address range %s->%s", + in6addr2str(&range->min, 0), + in6addr2str(&range->max, 0)); + return (NULL); + } + + if ((pool = malloc(sizeof(struct pool_conf))) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + return (NULL); + } + if ((pool->name = strdup(name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + free(pool); + return (NULL); + } +@@ -2131,16 +2131,16 @@ find_pool(name) + if (!name) + return (NULL); + +- dprintf(LOG_DEBUG, FNAME, "name=%s", name); ++ debug_printf(LOG_DEBUG, FNAME, "name=%s", name); + + for (pool = pool_conflist; pool; pool = pool->next) { + if (strcmp(name, pool->name) == 0) { +- dprintf(LOG_DEBUG, FNAME, "found (name=%s)", name); ++ debug_printf(LOG_DEBUG, FNAME, "found (name=%s)", name); + return (pool); + } + } + +- dprintf(LOG_DEBUG, FNAME, "not found (name=%s)", name); ++ debug_printf(LOG_DEBUG, FNAME, "not found (name=%s)", name); + + return (NULL); + } +@@ -2154,7 +2154,7 @@ get_free_address_from_pool(pool, addr) + if (!pool || !addr) + return (0); + +- dprintf(LOG_DEBUG, FNAME, "called (pool=%s)", pool->name); ++ debug_printf(LOG_DEBUG, FNAME, "called (pool=%s)", pool->name); + + for (cur = pool->min; in6_addr_cmp(&cur, &pool->max) <= 0; + in6_addr_inc(&cur)) { +@@ -2162,17 +2162,17 @@ get_free_address_from_pool(pool, addr) + !IN6_IS_ADDR_MULTICAST(&cur) && + !IN6_IS_ADDR_LINKLOCAL(&cur) && + !IN6_IS_ADDR_SITELOCAL(&cur)) { +- dprintf(LOG_DEBUG, FNAME, "found %s", ++ debug_printf(LOG_DEBUG, FNAME, "found %s", + in6addr2str(&cur, 0)); + *addr= cur; + return 1; + } + +- dprintf(LOG_DEBUG, FNAME, "next address %s", ++ debug_printf(LOG_DEBUG, FNAME, "next address %s", + in6addr2str(&cur, 0)); + } + +- dprintf(LOG_NOTICE, FNAME, "no available address"); ++ debug_printf(LOG_NOTICE, FNAME, "no available address"); + return 0; + } + +@@ -2184,7 +2184,7 @@ is_available_in_pool(pool, addr) + if (!pool || !addr) + return (0); + +- dprintf(LOG_DEBUG, FNAME, "pool=%s, addr=%s", ++ debug_printf(LOG_DEBUG, FNAME, "pool=%s, addr=%s", + pool->name, in6addr2str(addr, 0)); + + if (in6_addr_cmp(addr, &pool->min) >= 0 && +@@ -2196,7 +2196,7 @@ is_available_in_pool(pool, addr) + return (1); + } + +- dprintf(LOG_DEBUG, FNAME, "unavailable address (pool=%s, addr=%s)", ++ debug_printf(LOG_DEBUG, FNAME, "unavailable address (pool=%s, addr=%s)", + pool->name, in6addr2str(addr, 0)); + + return (0); +diff --git a/configure b/configure +index 6f50634..4722b7b 100755 +--- a/configure ++++ b/configure +@@ -6013,7 +6013,55 @@ fi + done + + +- ac_config_files="$ac_config_files Makefile" ++{ echo "$as_me:$LINENO: checking whether libc defines struct in6_pktinfo" >&5 ++echo $ECHO_N "checking whether libc defines struct in6_pktinfo... $ECHO_C" >&6; } ++cat >conftest.$ac_ext <<_ACEOF ++/* confdefs.h. */ ++_ACEOF ++cat confdefs.h >>conftest.$ac_ext ++cat >>conftest.$ac_ext <<_ACEOF ++/* end confdefs.h. */ ++#include <netinet/in.h> ++int ++main () ++{ ++struct in6_pktinfo p6; ++ ; ++ return 0; ++} ++_ACEOF ++rm -f conftest.$ac_objext ++if { (ac_try="$ac_compile" ++case "(($ac_try" in ++ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; ++ *) ac_try_echo=$ac_try;; ++esac ++eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 ++ (eval "$ac_compile") 2>conftest.er1 ++ ac_status=$? ++ grep -v '^ *+' conftest.er1 >conftest.err ++ rm -f conftest.er1 ++ cat conftest.err >&5 ++ echo "$as_me:$LINENO: \$? = $ac_status" >&5 ++ (exit $ac_status); } && { ++ test -z "$ac_c_werror_flag" || ++ test ! -s conftest.err ++ } && test -s conftest.$ac_objext; then ++ { echo "$as_me:$LINENO: result: yes" >&5 ++echo "${ECHO_T}yes" >&6; } ++ CFLAGS="$CFLAGS -DHAVE_IN6_PKTINFO" ++else ++ echo "$as_me: failed program was:" >&5 ++sed 's/^/| /' conftest.$ac_ext >&5 ++ ++ { echo "$as_me:$LINENO: result: no" >&5 ++echo "${ECHO_T}no" >&6; } ++fi ++ ++rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ++ ++ac_config_files="$ac_config_files Makefile" ++ + cat >confcache <<\_ACEOF + # This file is a shell script that caches the results of configure + # tests run on this system so they can be shared between configure +diff --git a/configure.in b/configure.in +index 59dd84e..6da9af5 100644 +--- a/configure.in ++++ b/configure.in +@@ -236,4 +236,11 @@ AC_SUBST(group) + + AC_CHECK_HEADERS(stdarg.h) + ++AC_MSG_CHECKING(whether libc defines struct in6_pktinfo) ++AC_TRY_COMPILE([#include <netinet/in.h>], ++ [struct in6_pktinfo p6;], ++ [AC_MSG_RESULT(yes) ++ CFLAGS="$CFLAGS -DHAVE_IN6_PKTINFO"], ++ [AC_MSG_RESULT(no)]) ++ + AC_OUTPUT(Makefile) +diff --git a/dhcp6.h b/dhcp6.h +index 6afb517..9f3a62d 100644 +--- a/dhcp6.h ++++ b/dhcp6.h +@@ -108,6 +108,13 @@ typedef uint64_t u_int64_t; + #define DHCP6_IRT_DEFAULT 86400 /* 1 day */ + #define DHCP6_IRT_MINIMUM 600 + ++#ifndef HAVE_IN6_PKTINFO ++struct in6_pktinfo { ++ struct in6_addr ipi6_addr; /* src/dst IPv6 address */ ++ unsigned int ipi6_ifindex; /* send/recv interface index */ ++}; ++#endif ++ + /* DUID: DHCP unique Identifier */ + struct duid { + size_t duid_len; /* length */ +diff --git a/dhcp6_ctl.c b/dhcp6_ctl.c +index ab1f18d..a12f82a 100644 +--- a/dhcp6_ctl.c ++++ b/dhcp6_ctl.c +@@ -93,32 +93,32 @@ dhcp6_ctl_init(addr, port, max, sockp) + hints.ai_protocol = IPPROTO_TCP; + error = getaddrinfo(addr, port, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + return (-1); + } + ctlsock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (ctlsock < 0) { +- dprintf(LOG_ERR, FNAME, "socket(control sock): %s", ++ debug_printf(LOG_ERR, FNAME, "socket(control sock): %s", + strerror(errno)); + goto fail; + } + on = 1; + if (setsockopt(ctlsock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) + < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(control sock, SO_REUSEADDR: %s", + strerror(errno)); + goto fail; + } + if (bind(ctlsock, res->ai_addr, res->ai_addrlen) < 0) { +- dprintf(LOG_ERR, FNAME, "bind(control sock): %s", ++ debug_printf(LOG_ERR, FNAME, "bind(control sock): %s", + strerror(errno)); + goto fail; + } + freeaddrinfo(res); + if (listen(ctlsock, 1)) { +- dprintf(LOG_ERR, FNAME, "listen(control sock): %s", ++ debug_printf(LOG_ERR, FNAME, "listen(control sock): %s", + strerror(errno)); + goto fail; + } +@@ -126,7 +126,7 @@ dhcp6_ctl_init(addr, port, max, sockp) + TAILQ_INIT(&commandqueue_head); + + if (max <= 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "invalid maximum number of commands (%d)", max_commands); + goto fail; + } +@@ -159,27 +159,27 @@ dhcp6_ctl_authinit(keyfile, keyinfop, digestlenp) + *digestlenp = MD5_DIGESTLENGTH; + + if ((fp = fopen(keyfile, "r")) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to open %s: %s", keyfile, ++ debug_printf(LOG_ERR, FNAME, "failed to open %s: %s", keyfile, + strerror(errno)); + return (-1); + } + if (fgets(line, sizeof(line), fp) == NULL && ferror(fp)) { +- dprintf(LOG_ERR, FNAME, "failed to read key file: %s", ++ debug_printf(LOG_ERR, FNAME, "failed to read key file: %s", + strerror(errno)); + goto fail; + } + if ((secretlen = base64_decodestring(line, secret, sizeof(secret))) + < 0) { +- dprintf(LOG_ERR, FNAME, "failed to decode base64 string"); ++ debug_printf(LOG_ERR, FNAME, "failed to decode base64 string"); + goto fail; + } + if ((ctlkey = malloc(sizeof(*ctlkey))) == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed to allocate control key"); ++ debug_printf(LOG_WARNING, FNAME, "failed to allocate control key"); + goto fail; + } + memset(ctlkey, 0, sizeof(*ctlkey)); + if ((ctlkey->secret = malloc(secretlen)) == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed to allocate secret key"); ++ debug_printf(LOG_WARNING, FNAME, "failed to allocate secret key"); + goto fail; + } + ctlkey->secretlen = (size_t)secretlen; +@@ -214,24 +214,24 @@ dhcp6_ctl_acceptcommand(sl, callback) + + fromlen = sizeof(from_ss); + if ((s = accept(sl, from, &fromlen)) < 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to accept control connection: %s", + strerror(errno)); + return (-1); + } + +- dprintf(LOG_DEBUG, FNAME, "accept control connection from %s", ++ debug_printf(LOG_DEBUG, FNAME, "accept control connection from %s", + addr2str(from)); + + if (max_commands <= 0) { +- dprintf(LOG_ERR, FNAME, "command queue is not initialized"); ++ debug_printf(LOG_ERR, FNAME, "command queue is not initialized"); + close(s); + return (-1); + } + + new = malloc(sizeof(*new)); + if (new == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to allocate new command context"); + goto fail; + } +@@ -240,7 +240,7 @@ dhcp6_ctl_acceptcommand(sl, callback) + if (commands == max_commands) { + ctx = TAILQ_FIRST(&commandqueue_head); + +- dprintf(LOG_INFO, FNAME, "command queue is full. " ++ debug_printf(LOG_INFO, FNAME, "command queue is full. " + "drop the oldest one (fd=%d)", ctx->s); + + TAILQ_REMOVE(&commandqueue_head, ctx, link); +@@ -271,7 +271,7 @@ dhcp6_ctl_closecommand(ctx) + free(ctx); + + if (commands == 0) { +- dprintf(LOG_ERR, FNAME, "assumption error: " ++ debug_printf(LOG_ERR, FNAME, "assumption error: " + "command queue is empty?"); + exit(1); /* XXX */ + } +@@ -299,12 +299,12 @@ dhcp6_ctl_readcommand(read_fds) + + cc = read(ctx->s, cp, resid); + if (cc < 0) { +- dprintf(LOG_WARNING, FNAME, "read failed: %s", ++ debug_printf(LOG_WARNING, FNAME, "read failed: %s", + strerror(errno)); + goto closecommand; + } + if (cc == 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "control channel was reset by peer"); + goto closecommand; + } +@@ -330,7 +330,7 @@ dhcp6_ctl_readcommand(read_fds) + break; + } + } else if (ctx->input_len > sizeof(ctx->inputbuf)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "too large command (%d bytes)", + ctx->input_len); + goto closecommand; +diff --git a/dhcp6c.c b/dhcp6c.c +index b5f5ed7..c959b7c 100644 +--- a/dhcp6c.c ++++ b/dhcp6c.c +@@ -218,7 +218,7 @@ main(argc, argv) + client6_init(); + while (argc-- > 0) { + if ((ifp = ifinit(argv[0])) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to initialize %s", ++ debug_printf(LOG_ERR, FNAME, "failed to initialize %s", + argv[0]); + exit(1); + } +@@ -226,7 +226,7 @@ main(argc, argv) + } + + if (infreq_mode == 0 && (cfparse(conffile)) != 0) { +- dprintf(LOG_ERR, FNAME, "failed to parse configuration file"); ++ debug_printf(LOG_ERR, FNAME, "failed to parse configuration file"); + exit(1); + } + +@@ -266,12 +266,12 @@ client6_init() + + /* get our DUID */ + if (get_duid(DUID_FILE, &client_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to get a DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to get a DUID"); + exit(1); + } + + if (dhcp6_ctl_authinit(ctlkeyfile, &ctlkey, &ctldigestlen) != 0) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed initialize control message authentication"); + /* run the server anyway */ + } +@@ -283,25 +283,25 @@ client6_init() + hints.ai_flags = AI_PASSIVE; + error = getaddrinfo(NULL, DH6PORT_DOWNSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } + sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (sock < 0) { +- dprintf(LOG_ERR, FNAME, "socket"); ++ debug_printf(LOG_ERR, FNAME, "socket"); + exit(1); + } + if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, + &on, sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(SO_REUSEPORT): %s", strerror(errno)); + exit(1); + } + #ifdef IPV6_RECVPKTINFO + if (setsockopt(sock, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(IPV6_RECVPKTINFO): %s", + strerror(errno)); + exit(1); +@@ -309,7 +309,7 @@ client6_init() + #else + if (setsockopt(sock, IPPROTO_IPV6, IPV6_PKTINFO, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(IPV6_PKTINFO): %s", + strerror(errno)); + exit(1); +@@ -317,7 +317,7 @@ client6_init() + #endif + if (setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(sock, IPV6_MULTICAST_LOOP): %s", + strerror(errno)); + exit(1); +@@ -325,7 +325,7 @@ client6_init() + #ifdef IPV6_V6ONLY + if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, + &on, sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(IPV6_V6ONLY): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(IPV6_V6ONLY): %s", + strerror(errno)); + exit(1); + } +@@ -337,14 +337,14 @@ client6_init() + * the outgoing port is also bound to the DH6PORT_DOWNSTREAM. + */ + if (bind(sock, res->ai_addr, res->ai_addrlen) < 0) { +- dprintf(LOG_ERR, FNAME, "bind: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "bind: %s", strerror(errno)); + exit(1); + } + freeaddrinfo(res); + + /* open a routing socket to watch the routing table */ + if ((rtsock = socket(PF_ROUTE, SOCK_RAW, 0)) < 0) { +- dprintf(LOG_ERR, FNAME, "open a routing socket: %s", ++ debug_printf(LOG_ERR, FNAME, "open a routing socket: %s", + strerror(errno)); + exit(1); + } +@@ -355,7 +355,7 @@ client6_init() + hints.ai_protocol = IPPROTO_UDP; + error = getaddrinfo(DH6ADDR_ALLAGENT, DH6PORT_UPSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } +@@ -365,21 +365,21 @@ client6_init() + + /* set up control socket */ + if (ctlkey == NULL) +- dprintf(LOG_NOTICE, FNAME, "skip opening control port"); ++ debug_printf(LOG_NOTICE, FNAME, "skip opening control port"); + else if (dhcp6_ctl_init(ctladdr, ctlport, + DHCP6CTL_DEF_COMMANDQUEUELEN, &ctlsock)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to initialize control channel"); + exit(1); + } + + if (signal(SIGHUP, client6_signal) == SIG_ERR) { +- dprintf(LOG_WARNING, FNAME, "failed to set signal: %s", ++ debug_printf(LOG_WARNING, FNAME, "failed to set signal: %s", + strerror(errno)); + exit(1); + } + if (signal(SIGTERM, client6_signal) == SIG_ERR) { +- dprintf(LOG_WARNING, FNAME, "failed to set signal: %s", ++ debug_printf(LOG_WARNING, FNAME, "failed to set signal: %s", + strerror(errno)); + exit(1); + } +@@ -393,28 +393,28 @@ client6_start(ifp) + + /* make sure that the interface does not have a timer */ + if (ifp->timer != NULL) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "removed existing timer on %s", ifp->ifname); + dhcp6_remove_timer(&ifp->timer); + } + + /* create an event for the initial delay */ + if ((ev = dhcp6_create_event(ifp, DHCP6S_INIT)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to create an event"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to create an event"); + return (-1); + } + TAILQ_INSERT_TAIL(&ifp->event_list, ev, link); + + if ((ev->authparam = new_authparam(ifp->authproto, + ifp->authalgorithm, ifp->authrdm)) == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed to allocate " ++ debug_printf(LOG_WARNING, FNAME, "failed to allocate " + "authentication parameters"); + dhcp6_remove_event(ev); + return (-1); + } + + if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to add a timer for %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to add a timer for %s", + ifp->ifname); + dhcp6_remove_event(ev); + return (-1); +@@ -432,7 +432,7 @@ client6_startall(isrestart) + + for (ifp = dhcp6_if; ifp; ifp = ifp->next) { + if (isrestart &&ifreset(ifp)) { +- dprintf(LOG_NOTICE, FNAME, "failed to reset %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to reset %s", + ifp->ifname); + continue; /* XXX: try to recover? */ + } +@@ -489,7 +489,7 @@ check_exit() + } + + /* We have no existing event. Do exit. */ +- dprintf(LOG_INFO, FNAME, "exiting"); ++ debug_printf(LOG_INFO, FNAME, "exiting"); + + exit(0); + } +@@ -504,7 +504,7 @@ process_signals() + check_exit(); + } + if ((sig_flags & SIGF_HUP)) { +- dprintf(LOG_INFO, FNAME, "restarting"); ++ debug_printf(LOG_INFO, FNAME, "restarting"); + free_resources(NULL); + client6_startall(1); + } +@@ -539,7 +539,7 @@ client6_mainloop() + switch (ret) { + case -1: + if (errno != EINTR) { +- dprintf(LOG_ERR, FNAME, "select: %s", ++ debug_printf(LOG_ERR, FNAME, "select: %s", + strerror(errno)); + exit(1); + } +@@ -633,31 +633,31 @@ client6_do_ctlcommand(buf, len) + commandlen = (int)(ntohs(ctlhead->len)); + version = ntohs(ctlhead->version); + if (len != sizeof(struct dhcp6ctl) + commandlen) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "assumption failure: command length mismatch"); + return (DHCP6CTL_R_FAILURE); + } + + /* replay protection and message authentication */ + if ((now = time(NULL)) < 0) { +- dprintf(LOG_ERR, FNAME, "failed to get current time: %s", ++ debug_printf(LOG_ERR, FNAME, "failed to get current time: %s", + strerror(errno)); + return (DHCP6CTL_R_FAILURE); + } + ts0 = (u_int32_t)now; + ts = ntohl(ctlhead->timestamp); + if (ts + CTLSKEW < ts0 || (ts - CTLSKEW) > ts0) { +- dprintf(LOG_INFO, FNAME, "timestamp is out of range"); ++ debug_printf(LOG_INFO, FNAME, "timestamp is out of range"); + return (DHCP6CTL_R_FAILURE); + } + + if (ctlkey == NULL) { /* should not happen!! */ +- dprintf(LOG_ERR, FNAME, "no secret key for control channel"); ++ debug_printf(LOG_ERR, FNAME, "no secret key for control channel"); + return (DHCP6CTL_R_FAILURE); + } + if (dhcp6_verify_mac(buf, len, DHCP6CTL_AUTHPROTO_UNDEF, + DHCP6CTL_AUTHALG_HMACMD5, sizeof(*ctlhead), ctlkey) != 0) { +- dprintf(LOG_INFO, FNAME, "authentication failure"); ++ debug_printf(LOG_INFO, FNAME, "authentication failure"); + return (DHCP6CTL_R_FAILURE); + } + +@@ -665,14 +665,14 @@ client6_do_ctlcommand(buf, len) + commandlen -= ctldigestlen; + + if (version > DHCP6CTL_VERSION) { +- dprintf(LOG_INFO, FNAME, "unsupported version: %d", version); ++ debug_printf(LOG_INFO, FNAME, "unsupported version: %d", version); + return (DHCP6CTL_R_FAILURE); + } + + switch (command) { + case DHCP6CTL_COMMAND_RELOAD: + if (commandlen != 0) { +- dprintf(LOG_INFO, FNAME, "invalid command length " ++ debug_printf(LOG_INFO, FNAME, "invalid command length " + "for reload: %d", commandlen); + return (DHCP6CTL_R_DONE); + } +@@ -691,7 +691,7 @@ client6_do_ctlcommand(buf, len) + return (DHCP6CTL_R_FAILURE); + break; + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown start target: %ul", p32); + return (DHCP6CTL_R_FAILURE); + } +@@ -718,14 +718,14 @@ client6_do_ctlcommand(buf, len) + } + break; + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown start target: %ul", p32); + return (DHCP6CTL_R_FAILURE); + } + } + break; + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown control command: %d (len=%d)", + (int)command, commandlen); + return (DHCP6CTL_R_FAILURE); +@@ -739,12 +739,12 @@ client6_reload() + { + /* reload the configuration file */ + if (cfparse(conffile) != 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to reload configuration file"); + return; + } + +- dprintf(LOG_NOTICE, FNAME, "client reloaded"); ++ debug_printf(LOG_NOTICE, FNAME, "client reloaded"); + + return; + } +@@ -757,20 +757,20 @@ client6_ifctl(ifname, command) + struct dhcp6_if *ifp; + + if ((ifp = find_ifconfbyname(ifname)) == NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to find interface configuration for %s", + ifname); + return (-1); + } + +- dprintf(LOG_DEBUG, FNAME, "%s interface %s", ++ debug_printf(LOG_DEBUG, FNAME, "%s interface %s", + command == DHCP6CTL_COMMAND_START ? "start" : "stop", ifname); + + switch(command) { + case DHCP6CTL_COMMAND_START: + free_resources(ifp); + if (client6_start(ifp)) { +- dprintf(LOG_NOTICE, FNAME, "failed to restart %s", ++ debug_printf(LOG_NOTICE, FNAME, "failed to restart %s", + ifname); + return (-1); + } +@@ -778,13 +778,13 @@ client6_ifctl(ifname, command) + case DHCP6CTL_COMMAND_STOP: + free_resources(ifp); + if (ifp->timer != NULL) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "removed existing timer on %s", ifp->ifname); + dhcp6_remove_timer(&ifp->timer); + } + break; + default: /* impossible case, should be a bug */ +- dprintf(LOG_ERR, FNAME, "unknown command: %d", (int)command); ++ debug_printf(LOG_ERR, FNAME, "unknown command: %d", (int)command); + break; + } + +@@ -797,7 +797,7 @@ client6_expire_refreshtime(arg) + { + struct dhcp6_if *ifp = arg; + +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "information refresh time on %s expired", ifp->ifname); + + dhcp6_remove_timer(&ifp->timer); +@@ -823,7 +823,7 @@ client6_timo(arg) + * [RFC3315 14.] + */ + if (ev->max_retrans_cnt && ev->timeouts >= ev->max_retrans_cnt) { +- dprintf(LOG_INFO, FNAME, "no responses were received"); ++ debug_printf(LOG_INFO, FNAME, "no responses were received"); + dhcp6_remove_event(ev); + + if (state == DHCP6S_RELEASE) +@@ -840,7 +840,7 @@ client6_timo(arg) + else { + ev->state = DHCP6S_SOLICIT; + if (construct_confdata(ifp, ev)) { +- dprintf(LOG_ERR, FNAME, "can't send solicit"); ++ debug_printf(LOG_ERR, FNAME, "can't send solicit"); + exit(1); /* XXX */ + } + } +@@ -856,7 +856,7 @@ client6_timo(arg) + if (!TAILQ_EMPTY(&ev->data_list)) + client6_send(ev); + else { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "all information to be updated was canceled"); + dhcp6_remove_event(ev); + return (NULL); +@@ -875,13 +875,13 @@ client6_timo(arg) + ev->current_server = select_server(ev); + if (ev->current_server == NULL) { + /* this should not happen! */ +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "can't find a server"); + exit(1); /* XXX */ + } + if (duidcpy(&ev->serverid, + &ev->current_server->optinfo.serverID)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "can't copy server ID"); + return (NULL); /* XXX: better recovery? */ + } +@@ -896,7 +896,7 @@ client6_timo(arg) + + if (construct_reqdata(ifp, + &ev->current_server->optinfo, ev)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to construct request data"); + break; + } +@@ -930,7 +930,7 @@ construct_confdata(ifp, ev) + + evd = NULL; + if ((evd = malloc(sizeof(*evd))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event data"); + goto fail; + } +@@ -982,7 +982,7 @@ construct_confdata(ifp, ev) + TAILQ_INSERT_TAIL(&ev->data_list, evd, link); + break; + default: +- dprintf(LOG_ERR, FNAME, "internal error"); ++ debug_printf(LOG_ERR, FNAME, "internal error"); + exit(1); + } + } +@@ -1078,7 +1078,7 @@ construct_reqdata(ifp, optinfo, ev) + TAILQ_INSERT_TAIL(&ev->data_list, evd, link); + break; + default: +- dprintf(LOG_ERR, FNAME, "internal error"); ++ debug_printf(LOG_ERR, FNAME, "internal error"); + exit(1); + } + } +@@ -1102,7 +1102,7 @@ destruct_iadata(evd) + struct dhcp6_list *ial; + + if (evd->type != DHCP6_EVDATA_IAPD && evd->type != DHCP6_EVDATA_IANA) { +- dprintf(LOG_ERR, FNAME, "assumption failure %d", evd->type); ++ debug_printf(LOG_ERR, FNAME, "assumption failure %d", evd->type); + exit(1); + } + +@@ -1124,7 +1124,7 @@ select_server(ev) + */ + for (s = ev->servers; s; s = s->next) { + if (s->active) { +- dprintf(LOG_DEBUG, FNAME, "picked a server (ID: %s)", ++ debug_printf(LOG_DEBUG, FNAME, "picked a server (ID: %s)", + duidstr(&s->optinfo.serverID)); + return (s); + } +@@ -1185,7 +1185,7 @@ client6_send(ev) + dh6->dh6_msgtype = DH6_INFORM_REQ; + break; + default: +- dprintf(LOG_ERR, FNAME, "unexpected state"); ++ debug_printf(LOG_ERR, FNAME, "unexpected state"); + exit(1); /* XXX */ + } + +@@ -1203,7 +1203,7 @@ client6_send(ev) + #else + ev->xid = random() & DH6_XIDMASK; + #endif +- dprintf(LOG_DEBUG, FNAME, "a new XID (%x) is generated", ++ debug_printf(LOG_DEBUG, FNAME, "a new XID (%x) is generated", + ev->xid); + } + dh6->dh6_xid &= ~ntohl(DH6_XIDMASK); +@@ -1221,7 +1221,7 @@ client6_send(ev) + case DHCP6S_RENEW: + case DHCP6S_RELEASE: + if (duidcpy(&optinfo.serverID, &ev->serverid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto end; + } + break; +@@ -1229,7 +1229,7 @@ client6_send(ev) + + /* client ID */ + if (duidcpy(&optinfo.clientID, &client_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto end; + } + +@@ -1274,7 +1274,7 @@ client6_send(ev) + /* option request options */ + if (ev->state != DHCP6S_RELEASE && + dhcp6_copy_list(&optinfo.reqopt_list, &ifp->reqopt_list)) { +- dprintf(LOG_ERR, FNAME, "failed to copy requested options"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy requested options"); + goto end; + } + +@@ -1285,7 +1285,7 @@ client6_send(ev) + case DHCP6_EVDATA_IAPD: + if (dhcp6_copy_list(&optinfo.iapd_list, + (struct dhcp6_list *)evd->data)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to add an IAPD"); + goto end; + } +@@ -1293,13 +1293,13 @@ client6_send(ev) + case DHCP6_EVDATA_IANA: + if (dhcp6_copy_list(&optinfo.iana_list, + (struct dhcp6_list *)evd->data)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to add an IAPD"); + goto end; + } + break; + default: +- dprintf(LOG_ERR, FNAME, "unexpected event data (%d)", ++ debug_printf(LOG_ERR, FNAME, "unexpected event data (%d)", + evd->type); + exit(1); + } +@@ -1307,7 +1307,7 @@ client6_send(ev) + + /* authentication information */ + if (set_auth(ev, &optinfo)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to set authentication option"); + goto end; + } +@@ -1316,7 +1316,7 @@ client6_send(ev) + if ((optlen = dhcp6_set_options(dh6->dh6_msgtype, + (struct dhcp6opt *)(dh6 + 1), + (struct dhcp6opt *)(buf + sizeof(buf)), &optinfo)) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to construct options"); ++ debug_printf(LOG_INFO, FNAME, "failed to construct options"); + goto end; + } + len += optlen; +@@ -1332,7 +1332,7 @@ client6_send(ev) + optinfo.authproto, optinfo.authalgorithm, + optinfo.delayedauth_offset + sizeof(*dh6), + ev->authparam->key)) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to calculate MAC"); + goto end; + } +@@ -1354,12 +1354,12 @@ client6_send(ev) + + if (sendto(sock, buf, len, 0, (struct sockaddr *)&dst, + sysdep_sa_len((struct sockaddr *)&dst)) == -1) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "transmit failed: %s", strerror(errno)); + goto end; + } + +- dprintf(LOG_DEBUG, FNAME, "send %s to %s", ++ debug_printf(LOG_DEBUG, FNAME, "send %s to %s", + dhcp6msgstr(dh6->dh6_msgtype), addr2str((struct sockaddr *)&dst)); + + end: +@@ -1417,7 +1417,7 @@ client6_recv() + mhdr.msg_control = (caddr_t)cmsgbuf; + mhdr.msg_controllen = sizeof(cmsgbuf); + if ((len = recvmsg(sock, &mhdr, 0)) < 0) { +- dprintf(LOG_ERR, FNAME, "recvmsg: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "recvmsg: %s", strerror(errno)); + return; + } + +@@ -1431,24 +1431,24 @@ client6_recv() + } + } + if (pi == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to get packet info"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to get packet info"); + return; + } + + if ((ifp = find_ifconfbyid((unsigned int)pi->ipi6_ifindex)) == NULL) { +- dprintf(LOG_INFO, FNAME, "unexpected interface (%d)", ++ debug_printf(LOG_INFO, FNAME, "unexpected interface (%d)", + (unsigned int)pi->ipi6_ifindex); + return; + } + + if (len < sizeof(*dh6)) { +- dprintf(LOG_INFO, FNAME, "short packet (%d bytes)", len); ++ debug_printf(LOG_INFO, FNAME, "short packet (%d bytes)", len); + return; + } + + dh6 = (struct dhcp6 *)rbuf; + +- dprintf(LOG_DEBUG, FNAME, "receive %s from %s on %s", ++ debug_printf(LOG_DEBUG, FNAME, "receive %s from %s on %s", + dhcp6msgstr(dh6->dh6_msgtype), + addr2str((struct sockaddr *)&from), ifp->ifname); + +@@ -1457,7 +1457,7 @@ client6_recv() + p = (struct dhcp6opt *)(dh6 + 1); + ep = (struct dhcp6opt *)((char *)dh6 + len); + if (dhcp6_get_options(p, ep, &optinfo) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to parse options"); ++ debug_printf(LOG_INFO, FNAME, "failed to parse options"); + return; + } + +@@ -1469,7 +1469,7 @@ client6_recv() + (void)client6_recvreply(ifp, dh6, len, &optinfo); + break; + default: +- dprintf(LOG_INFO, FNAME, "received an unexpected message (%s) " ++ debug_printf(LOG_INFO, FNAME, "received an unexpected message (%s) " + "from %s", dhcp6msgstr(dh6->dh6_msgtype), + addr2str((struct sockaddr *)&from)); + break; +@@ -1494,32 +1494,32 @@ client6_recvadvert(ifp, dh6, len, optinfo) + /* find the corresponding event based on the received xid */ + ev = find_event_withid(ifp, ntohl(dh6->dh6_xid) & DH6_XIDMASK); + if (ev == NULL) { +- dprintf(LOG_INFO, FNAME, "XID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "XID mismatch"); + return (-1); + } + + /* packet validation based on Section 15.3 of RFC3315. */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } else { +- dprintf(LOG_DEBUG, FNAME, "server ID: %s, pref=%d", ++ debug_printf(LOG_DEBUG, FNAME, "server ID: %s, pref=%d", + duidstr(&optinfo->serverID), + optinfo->pref); + } + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + if (duidcmp(&optinfo->clientID, &client_duid)) { +- dprintf(LOG_INFO, FNAME, "client DUID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "client DUID mismatch"); + return (-1); + } + + /* validate authentication */ + authparam0 = *ev->authparam; + if (process_auth(&authparam0, dh6, len, optinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication"); ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication"); + return (-1); + } + +@@ -1552,7 +1552,7 @@ client6_recvadvert(ifp, dh6, len, optinfo) + } + if (dhcp6_find_listval(&optinfo->stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, 0)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "advertise contains %s status", stcodestr); + return (-1); + } +@@ -1567,20 +1567,20 @@ client6_recvadvert(ifp, dh6, len, optinfo) + * We process the message as if we expected the Advertise. + * [RFC3315 Section 17.1.4] + */ +- dprintf(LOG_INFO, FNAME, "unexpected advertise"); ++ debug_printf(LOG_INFO, FNAME, "unexpected advertise"); + /* proceed anyway */ + } + + /* ignore the server if it is known */ + if (find_server(ev, &optinfo->serverID)) { +- dprintf(LOG_INFO, FNAME, "duplicated server (ID: %s)", ++ debug_printf(LOG_INFO, FNAME, "duplicated server (ID: %s)", + duidstr(&optinfo->serverID)); + return (-1); + } + + /* keep the server */ + if ((newserver = malloc(sizeof(*newserver))) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "memory allocation failed for server"); + return (-1); + } +@@ -1595,7 +1595,7 @@ client6_recvadvert(ifp, dh6, len, optinfo) + /* allocate new authentication parameter for the soliciting event */ + if ((authparam = new_authparam(ev->authparam->authproto, + ev->authparam->authalgorithm, ev->authparam->authrdm)) == NULL) { +- dprintf(LOG_WARNING, FNAME, "memory allocation failed " ++ debug_printf(LOG_WARNING, FNAME, "memory allocation failed " + "for authentication parameters"); + free(newserver); + return (-1); +@@ -1605,7 +1605,7 @@ client6_recvadvert(ifp, dh6, len, optinfo) + /* copy options */ + dhcp6_init_options(&newserver->optinfo); + if (dhcp6_copy_options(&newserver->optinfo, optinfo)) { +- dprintf(LOG_ERR, FNAME, "failed to copy options"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy options"); + if (newserver->authparam != NULL) + free(newserver->authparam); + free(newserver); +@@ -1633,11 +1633,11 @@ client6_recvadvert(ifp, dh6, len, optinfo) + ev->current_server = newserver; + if (duidcpy(&ev->serverid, + &ev->current_server->optinfo.serverID)) { +- dprintf(LOG_NOTICE, FNAME, "can't copy server ID"); ++ debug_printf(LOG_NOTICE, FNAME, "can't copy server ID"); + return (-1); /* XXX: better recovery? */ + } + if (construct_reqdata(ifp, &ev->current_server->optinfo, ev)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to construct request data"); + return (-1); /* XXX */ + } +@@ -1673,7 +1673,7 @@ client6_recvadvert(ifp, dh6, len, optinfo) + else + timo.tv_sec = timo.tv_usec = 0; + +- dprintf(LOG_DEBUG, FNAME, "reset timer for %s to %d.%06d", ++ debug_printf(LOG_DEBUG, FNAME, "reset timer for %s to %d.%06d", + ifp->ifname, (int)timo.tv_sec, (int)timo.tv_usec); + + dhcp6_set_timer(&timo, ev->timer); +@@ -1711,7 +1711,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + /* find the corresponding event based on the received xid */ + ev = find_event_withid(ifp, ntohl(dh6->dh6_xid) & DH6_XIDMASK); + if (ev == NULL) { +- dprintf(LOG_INFO, FNAME, "XID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "XID mismatch"); + return (-1); + } + +@@ -1723,13 +1723,13 @@ client6_recvreply(ifp, dh6, len, optinfo) + state != DHCP6S_RELEASE && + (state != DHCP6S_SOLICIT || + !(ifp->send_flags & DHCIFF_RAPID_COMMIT))) { +- dprintf(LOG_INFO, FNAME, "unexpected reply"); ++ debug_printf(LOG_INFO, FNAME, "unexpected reply"); + return (-1); + } + + /* A Reply message must contain a Server ID option */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } + +@@ -1738,17 +1738,17 @@ client6_recvreply(ifp, dh6, len, optinfo) + * client implementation) must match ours. + */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + if (duidcmp(&optinfo->clientID, &client_duid)) { +- dprintf(LOG_INFO, FNAME, "client DUID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "client DUID mismatch"); + return (-1); + } + + /* validate authentication */ + if (process_auth(ev->authparam, dh6, len, optinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication"); ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication"); + return (-1); + } + +@@ -1762,7 +1762,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + if (state == DHCP6S_SOLICIT && + (ifp->send_flags & DHCIFF_RAPID_COMMIT) && + !optinfo->rapidcommit) { +- dprintf(LOG_INFO, FNAME, "no rapid commit"); ++ debug_printf(LOG_INFO, FNAME, "no rapid commit"); + return (-1); + } + +@@ -1773,7 +1773,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + */ + for (lv = TAILQ_FIRST(&optinfo->stcode_list); lv; + lv = TAILQ_NEXT(lv, link)) { +- dprintf(LOG_INFO, FNAME, "status code: %s", ++ debug_printf(LOG_INFO, FNAME, "status code: %s", + dhcp6_stcodestr(lv->val_num16)); + } + +@@ -1837,7 +1837,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + * configuration parameters. + */ + if (ifp->scriptpath != NULL && strlen(ifp->scriptpath) != 0) { +- dprintf(LOG_DEBUG, FNAME, "executes %s", ifp->scriptpath); ++ debug_printf(LOG_DEBUG, FNAME, "executes %s", ifp->scriptpath); + client6_script(ifp->scriptpath, state, optinfo); + } + +@@ -1855,7 +1855,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + + ifp->timer = dhcp6_add_timer(client6_expire_refreshtime, ifp); + if (ifp->timer == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to add timer for refresh time"); + } else { + struct timeval tv; +@@ -1868,7 +1868,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + * XXX: tv_sec can overflow for an + * unsigned 32bit value. + */ +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "refresh time is too large: %lu", + (u_int32_t)refreshtime); + tv.tv_sec = 0x7fffffff; /* XXX */ +@@ -1881,7 +1881,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + * draft-ietf-dhc-lifetime-02 clarifies that refresh time + * is only used for information-request and reply exchanges. + */ +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unexpected information refresh time option (ignored)"); + } + +@@ -1906,7 +1906,7 @@ client6_recvreply(ifp, dh6, len, optinfo) + check_exit(); + } + +- dprintf(LOG_DEBUG, FNAME, "got an expected reply, sleeping."); ++ debug_printf(LOG_DEBUG, FNAME, "got an expected reply, sleeping."); + + if (infreq_mode) { + exit_ok = 1; +@@ -1949,19 +1949,19 @@ process_auth(authparam, dh6, len, optinfo) + break; + case DHCP6_AUTHPROTO_DELAYED: + if ((optinfo->authflags & DHCP6OPT_AUTHFLAG_NOINFO)) { +- dprintf(LOG_INFO, FNAME, "server did not include " ++ debug_printf(LOG_INFO, FNAME, "server did not include " + "authentication information"); + break; + } + + if (optinfo->authalgorithm != DHCP6_AUTHALG_HMACMD5) { +- dprintf(LOG_INFO, FNAME, "unknown authentication " ++ debug_printf(LOG_INFO, FNAME, "unknown authentication " + "algorithm (%d)", optinfo->authalgorithm); + break; + } + + if (optinfo->authrdm != DHCP6_AUTHRDM_MONOCOUNTER) { +- dprintf(LOG_INFO, FNAME,"unknown RDM (%d)", ++ debug_printf(LOG_INFO, FNAME,"unknown RDM (%d)", + optinfo->authrdm); + break; + } +@@ -1971,12 +1971,12 @@ process_auth(authparam, dh6, len, optinfo) + * we accept the message anyway (XXX). + */ + if ((authparam->flags & AUTHPARAM_FLAGS_NOPREVRD)) { +- dprintf(LOG_WARNING, FNAME, "previous RD value is " ++ debug_printf(LOG_WARNING, FNAME, "previous RD value is " + "unknown (accept it)"); + } else { + if (dhcp6_auth_replaycheck(optinfo->authrdm, + authparam->prevrd, optinfo->authrd)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "possible replay attack detected"); + break; + } +@@ -1993,7 +1993,7 @@ process_auth(authparam, dh6, len, optinfo) + optinfo->delayedauth_realmlen != key->realmlen || + memcmp(optinfo->delayedauth_realmval, key->realm, + key->realmlen) != 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "authentication key mismatch"); + break; + } +@@ -2002,12 +2002,12 @@ process_auth(authparam, dh6, len, optinfo) + optinfo->delayedauth_realmlen, + optinfo->delayedauth_keyid); + if (key == NULL) { +- dprintf(LOG_INFO, FNAME, "failed to find key " ++ debug_printf(LOG_INFO, FNAME, "failed to find key " + "provided by the server (ID: %x)", + optinfo->delayedauth_keyid); + break; + } else { +- dprintf(LOG_DEBUG, FNAME, "found key for " ++ debug_printf(LOG_DEBUG, FNAME, "found key for " + "authentication: %s", key->name); + } + authparam->key = key; +@@ -2015,7 +2015,7 @@ process_auth(authparam, dh6, len, optinfo) + + /* check for the key lifetime */ + if (dhcp6_validate_key(key)) { +- dprintf(LOG_INFO, FNAME, "key %s has expired", ++ debug_printf(LOG_INFO, FNAME, "key %s has expired", + key->name); + break; + } +@@ -2024,24 +2024,24 @@ process_auth(authparam, dh6, len, optinfo) + if (dhcp6_verify_mac((char *)dh6, len, optinfo->authproto, + optinfo->authalgorithm, + optinfo->delayedauth_offset + sizeof(*dh6), key) == 0) { +- dprintf(LOG_DEBUG, FNAME, "message authentication " ++ debug_printf(LOG_DEBUG, FNAME, "message authentication " + "validated"); + authenticated = 1; + } else { +- dprintf(LOG_INFO, FNAME, "invalid message " ++ debug_printf(LOG_INFO, FNAME, "invalid message " + "authentication"); + } + + break; + default: +- dprintf(LOG_INFO, FNAME, "server sent unsupported " ++ debug_printf(LOG_INFO, FNAME, "server sent unsupported " + "authentication protocol (%d)", optinfo->authproto); + break; + } + + if (authenticated == 0) { + if (authparam->authproto != DHCP6_AUTHPROTO_UNDEF) { +- dprintf(LOG_INFO, FNAME, "message not authenticated " ++ debug_printf(LOG_INFO, FNAME, "message not authenticated " + "while authentication required"); + + /* +@@ -2084,7 +2084,7 @@ set_auth(ev, optinfo) + * exchanges doesn't work. Specification is also + * unclear on this usage. + */ +- dprintf(LOG_WARNING, FNAME, "delayed authentication " ++ debug_printf(LOG_WARNING, FNAME, "delayed authentication " + "cannot be used for Information-request yet"); + return (-1); + } +@@ -2095,21 +2095,21 @@ set_auth(ev, optinfo) + } + + if (authparam->key == NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "no authentication key for %s", + dhcp6_event_statestr(ev)); + return (-1); + } + + if (dhcp6_validate_key(authparam->key)) { +- dprintf(LOG_INFO, FNAME, "key %s is invalid", ++ debug_printf(LOG_INFO, FNAME, "key %s is invalid", + authparam->key->name); + return (-1); + } + + if (get_rdvalue(optinfo->authrdm, &optinfo->authrd, + sizeof(optinfo->authrd))) { +- dprintf(LOG_ERR, FNAME, "failed to get a replay " ++ debug_printf(LOG_ERR, FNAME, "failed to get a replay " + "detection value"); + return (-1); + } +@@ -2119,7 +2119,7 @@ set_auth(ev, optinfo) + optinfo->delayedauth_realmval = + malloc(optinfo->delayedauth_realmlen); + if (optinfo->delayedauth_realmval == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to allocate memory " ++ debug_printf(LOG_ERR, FNAME, "failed to allocate memory " + "for authentication realm"); + return (-1); + } +@@ -2128,7 +2128,7 @@ set_auth(ev, optinfo) + + break; + default: +- dprintf(LOG_ERR, FNAME, "unsupported authentication protocol " ++ debug_printf(LOG_ERR, FNAME, "unsupported authentication protocol " + "%d", authparam->authproto); + return (-1); + } +@@ -2145,7 +2145,7 @@ info_printf(const char *fmt, ...) + va_start(ap, fmt); + vsnprintf(logbuf, sizeof(logbuf), fmt, ap); + +- dprintf(LOG_DEBUG, FNAME, "%s", logbuf); ++ debug_printf(LOG_DEBUG, FNAME, "%s", logbuf); + if (infreq_mode) + printf("%s\n", logbuf); + +diff --git a/dhcp6c_ia.c b/dhcp6c_ia.c +index 6877c20..1dc37d3 100644 +--- a/dhcp6c_ia.c ++++ b/dhcp6c_ia.c +@@ -122,7 +122,7 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + * We apply the same rule to IA_PD as well. + */ + if (iav->val_ia.t2 != 0 && iav->val_ia.t1 > iav->val_ia.t2) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "invalid IA: T1(%lu) > T2(%lu)", + iav->val_ia.t1, iav->val_ia.t2); + continue; +@@ -131,14 +131,14 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + /* locate the local IA or make a new one */ + ia = get_ia(iatype, ifp, iac, iav, serverid); + if (ia == NULL) { +- dprintf(LOG_WARNING, FNAME, "failed to get an IA " ++ debug_printf(LOG_WARNING, FNAME, "failed to get an IA " + "type: %s, ID: %u", iastr(iac->type), iac->iaid); + continue; + } + + /* update authentication parameters */ + if (update_authparam(ia, authparam)) { +- dprintf(LOG_WARNING, FNAME, "failed to update " ++ debug_printf(LOG_WARNING, FNAME, "failed to update " + "authentication param for IA " + "type: %s, ID: %u", iastr(iac->type), iac->iaid); + remove_ia(ia); +@@ -155,7 +155,7 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + if (update_prefix(ia, &siav->val_prefix6, + &iapdc->iapd_pif_list, ifp, &ia->ctl, + callback)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to update a prefix %s/%d", + in6addr2str(&siav->val_prefix6.addr, 0), + siav->val_prefix6.plen); +@@ -165,13 +165,13 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + ianac = (struct iana_conf *)iac; + if (update_address(ia, &siav->val_statefuladdr6, + ifp, &ia->ctl, callback)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to update an address %s", + in6addr2str(&siav->val_statefuladdr6.addr, 0)); + } + break; + case DHCP6_LISTVAL_STCODE: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "status code for %s-%lu: %s", + iastr(iatype), iav->val_ia.iaid, + dhcp6_stcodestr(siav->val_num16)); +@@ -187,7 +187,7 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + * [RFC3315 18.1.8] + * XXX: what about the PD case? + */ +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "receive NoBinding against " + "renew/rebind for %s-%lu", + iastr(ia->conf->type), +@@ -197,14 +197,14 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + } + break; + default: +- dprintf(LOG_ERR, FNAME, "impossible case"); ++ debug_printf(LOG_ERR, FNAME, "impossible case"); + goto nextia; + } + } + + /* see if this IA is still valid. if not, remove it. */ + if (ia->ctl == NULL || !(*ia->ctl->isvalid)(ia->ctl)) { +- dprintf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated", ++ debug_printf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated", + iastr(ia->conf->type), ia->conf->iaid); + remove_ia(ia); + continue; +@@ -236,7 +236,7 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + if (ia->t1 > ia->t2) + ia->t1 = ia->t2 * 5 / 8; + +- dprintf(LOG_INFO, FNAME, "T1(%lu) and/or T2(%lu) " ++ debug_printf(LOG_INFO, FNAME, "T1(%lu) and/or T2(%lu) " + "is locally determined", ia->t1, ia->t2); + } + +@@ -246,11 +246,11 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + * without renewal. + */ + if (ia->t2 < DHCP6_DURATION_MIN) { +- dprintf(LOG_INFO, FNAME, "T1 (%lu) or T2 (%lu) " ++ debug_printf(LOG_INFO, FNAME, "T1 (%lu) or T2 (%lu) " + "is too small", ia->t1, ia->t2); + ia->t2 = DHCP6_DURATION_MIN; + ia->t1 = ia->t2 * 5 / 8; +- dprintf(LOG_INFO, "", " adjusted to %lu and %lu", ++ debug_printf(LOG_INFO, "", " adjusted to %lu and %lu", + ia->t1, ia->t2); + } + +@@ -262,7 +262,7 @@ update_ia(iatype, ialist, ifp, serverid, authparam) + if (ia->timer == NULL) + ia->timer = dhcp6_add_timer(ia_timo, ia); + if (ia->timer == NULL) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to add IA timer"); + remove_ia(ia); /* XXX */ + continue; +@@ -289,7 +289,7 @@ update_authparam(ia, authparam) + + if (ia->authparam == NULL) { + if ((ia->authparam = copy_authparam(authparam)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to copy authparam"); + return (-1); + } +@@ -311,11 +311,11 @@ reestablish_ia(ia) + struct dhcp6_event *ev; + struct dhcp6_eventdata *evd; + +- dprintf(LOG_DEBUG, FNAME, "re-establishing IA: %s-%lu", ++ debug_printf(LOG_DEBUG, FNAME, "re-establishing IA: %s-%lu", + iastr(ia->conf->type), ia->conf->iaid); + + if (ia->state != IAS_RENEW && ia->state != IAS_REBIND) { +- dprintf(LOG_ERR, FNAME, "internal error (invalid IA status)"); ++ debug_printf(LOG_ERR, FNAME, "internal error (invalid IA status)"); + exit(1); /* XXX */ + } + +@@ -333,19 +333,19 @@ reestablish_ia(ia) + dhcp6_remove_timer(&ia->timer); + + if ((ev = dhcp6_create_event(ia->ifp, DHCP6S_REQUEST)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to create a new event"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to create a new event"); + goto fail; + } + TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link); + + if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event timer"); + goto fail; + } + + if ((evd = malloc(sizeof(*evd))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event data"); + goto fail; + } +@@ -354,7 +354,7 @@ reestablish_ia(ia) + TAILQ_INSERT_TAIL(&ev->data_list, evd, link); + + if (duidcpy(&ev->serverid, &ia->serverid)) { +- dprintf(LOG_NOTICE, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to copy server ID"); + goto fail; + } + +@@ -365,7 +365,7 @@ reestablish_ia(ia) + if (ia->ctl && ia->ctl->reestablish_data) { + if ((*ia->ctl->reestablish_data)(ia->ctl, &iaparam, + &ia->evdata, evd)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make reestablish data"); + goto fail; + } +@@ -373,7 +373,7 @@ reestablish_ia(ia) + + if (ia->authparam != NULL) { + if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to copy authparam"); + goto fail; + } +@@ -402,7 +402,7 @@ callback(ia) + { + /* see if this IA is still valid. if not, remove it. */ + if (ia->ctl == NULL || !(*ia->ctl->isvalid)(ia->ctl)) { +- dprintf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated", ++ debug_printf(LOG_DEBUG, FNAME, "IA %s-%lu is invalidated", + iastr(ia->conf->type), ia->conf->iaid); + remove_ia(ia); + } +@@ -441,30 +441,30 @@ release_ia(ia) + struct dhcp6_event *ev; + struct dhcp6_eventdata *evd; + +- dprintf(LOG_DEBUG, FNAME, "release an IA: %s-%lu", ++ debug_printf(LOG_DEBUG, FNAME, "release an IA: %s-%lu", + iastr(ia->conf->type), ia->conf->iaid); + + if ((ev = dhcp6_create_event(ia->ifp, DHCP6S_RELEASE)) + == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to create a new event"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to create a new event"); + goto fail; + } + TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link); + + + if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event timer"); + goto fail; + } + + if (duidcpy(&ev->serverid, &ia->serverid)) { +- dprintf(LOG_NOTICE, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to copy server ID"); + goto fail; + } + + if ((evd = malloc(sizeof(*evd))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event data"); + goto fail; + } +@@ -476,7 +476,7 @@ release_ia(ia) + + if (ia->ctl && ia->ctl->release_data) { + if ((*ia->ctl->release_data)(ia->ctl, &iaparam, NULL, evd)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make release data"); + goto fail; + } +@@ -489,7 +489,7 @@ release_ia(ia) + + if (ia->authparam != NULL) { + if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to copy authparam"); + goto fail; + } +@@ -513,7 +513,7 @@ remove_ia(ia) + struct ia_conf *iac = ia->conf; + struct dhcp6_if *ifp = ia->ifp; + +- dprintf(LOG_DEBUG, FNAME, "remove an IA: %s-%lu", ++ debug_printf(LOG_DEBUG, FNAME, "remove an IA: %s-%lu", + iastr(ia->conf->type), ia->conf->iaid); + + TAILQ_REMOVE(&iac->iadata, ia, link); +@@ -553,7 +553,7 @@ ia_timo(arg) + struct timeval timo; + int dhcpstate; + +- dprintf(LOG_DEBUG, FNAME, "IA timeout for %s-%lu, state=%s", ++ debug_printf(LOG_DEBUG, FNAME, "IA timeout for %s-%lu, state=%s", + iastr(ia->conf->type), ia->conf->iaid, statestr(ia->state)); + + /* cancel the current event for the prefix. */ +@@ -586,25 +586,25 @@ ia_timo(arg) + dhcp6_remove_timer(&ia->timer); + break; + default: +- dprintf(LOG_ERR, FNAME, "invalid IA state (%d)", ++ debug_printf(LOG_ERR, FNAME, "invalid IA state (%d)", + (int)ia->state); + return (NULL); /* XXX */ + } + + if ((ev = dhcp6_create_event(ia->ifp, dhcpstate)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to create a new event"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to create a new event"); + goto fail; + } + TAILQ_INSERT_TAIL(&ia->ifp->event_list, ev, link); + + if ((ev->timer = dhcp6_add_timer(client6_timo, ev)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event timer"); + goto fail; + } + + if ((evd = malloc(sizeof(*evd))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to create a new event data"); + goto fail; + } +@@ -614,7 +614,7 @@ ia_timo(arg) + + if (ia->state == IAS_RENEW) { + if (duidcpy(&ev->serverid, &ia->serverid)) { +- dprintf(LOG_NOTICE, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to copy server ID"); + goto fail; + } + } +@@ -627,7 +627,7 @@ ia_timo(arg) + if (ia->ctl && ia->ctl->renew_data) { + if ((*ia->ctl->renew_data)(ia->ctl, &iaparam, + &ia->evdata, evd)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make renew data"); + goto fail; + } +@@ -637,7 +637,7 @@ ia_timo(arg) + if (ia->ctl && ia->ctl->rebind_data) { + if ((*ia->ctl->rebind_data)(ia->ctl, &iaparam, + &ia->evdata, evd)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make rebind data"); + goto fail; + } +@@ -653,7 +653,7 @@ ia_timo(arg) + + if (ia->authparam != NULL) { + if ((ev->authparam = copy_authparam(ia->authparam)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to copy authparam"); + goto fail; + } +@@ -693,13 +693,13 @@ get_ia(type, ifp, iac, iaparam, serverid) + int create = 0; + + if (duidcpy(&newserver, serverid)) { +- dprintf(LOG_NOTICE, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to copy server ID"); + return (NULL); + } + + if ((ia = find_ia(iac, type, iaparam->val_ia.iaid)) == NULL) { + if ((ia = malloc(sizeof(*ia))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "memory allocation failed"); ++ debug_printf(LOG_NOTICE, FNAME, "memory allocation failed"); + duidfree(&newserver); /* XXX */ + return (NULL); + } +@@ -718,7 +718,7 @@ get_ia(type, ifp, iac, iaparam, serverid) + ia->ifp = ifp; + ia->serverid = newserver; + +- dprintf(LOG_DEBUG, FNAME, "%s an IA: %s-%lu", ++ debug_printf(LOG_DEBUG, FNAME, "%s an IA: %s-%lu", + create ? "make" : "update", iastr(type), ia->conf->iaid); + + return (ia); +diff --git a/dhcp6c_script.c b/dhcp6c_script.c +index 05ccf8c..583ac7d 100644 +--- a/dhcp6c_script.c ++++ b/dhcp6c_script.c +@@ -156,7 +156,7 @@ client6_script(scriptpath, state, optinfo) + + /* allocate an environments array */ + if ((envp = malloc(sizeof (char *) * envc)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate environment buffer"); + return -1; + } +@@ -168,7 +168,7 @@ client6_script(scriptpath, state, optinfo) + i = 0; + /* reason */ + if ((envp[i++] = strdup(reason)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate reason strings"); + ret = -1; + goto clean; +@@ -178,7 +178,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (dnsserver_str) + + (INET6_ADDRSTRLEN + 1) * dnsservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for DNS servers"); + ret = -1; + goto clean; +@@ -198,7 +198,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (ntpserver_str) + + (INET6_ADDRSTRLEN + 1) * ntpservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for NTP servers"); + ret = -1; + goto clean; +@@ -218,7 +218,7 @@ client6_script(scriptpath, state, optinfo) + if (dnsnamelen) { + elen = sizeof (dnsname_str) + dnsnamelen + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for DNS name"); + ret = -1; + goto clean; +@@ -236,7 +236,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (sipserver_str) + + (INET6_ADDRSTRLEN + 1) * sipservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for SIP servers"); + ret = -1; + goto clean; +@@ -255,7 +255,7 @@ client6_script(scriptpath, state, optinfo) + if (sipnamelen) { + elen = sizeof (sipname_str) + sipnamelen + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for SIP domain name"); + ret = -1; + goto clean; +@@ -273,7 +273,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (nisserver_str) + + (INET6_ADDRSTRLEN + 1) * nisservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for NIS servers"); + ret = -1; + goto clean; +@@ -292,7 +292,7 @@ client6_script(scriptpath, state, optinfo) + if (nisnamelen) { + elen = sizeof (nisname_str) + nisnamelen + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for NIS domain name"); + ret = -1; + goto clean; +@@ -310,7 +310,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (nispserver_str) + + (INET6_ADDRSTRLEN + 1) * nispservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for NIS+ servers"); + ret = -1; + goto clean; +@@ -329,7 +329,7 @@ client6_script(scriptpath, state, optinfo) + if (nispnamelen) { + elen = sizeof (nispname_str) + nispnamelen + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for NIS+ domain name"); + ret = -1; + goto clean; +@@ -347,7 +347,7 @@ client6_script(scriptpath, state, optinfo) + elen = sizeof (bcmcsserver_str) + + (INET6_ADDRSTRLEN + 1) * bcmcsservers + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for BCMC servers"); + ret = -1; + goto clean; +@@ -366,7 +366,7 @@ client6_script(scriptpath, state, optinfo) + if (bcmcsnamelen) { + elen = sizeof (bcmcsname_str) + bcmcsnamelen + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate strings for BCMC domain name"); + ret = -1; + goto clean; +@@ -383,7 +383,7 @@ client6_script(scriptpath, state, optinfo) + /* launch the script */ + pid = fork(); + if (pid < 0) { +- dprintf(LOG_ERR, FNAME, "failed to fork: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "failed to fork: %s", strerror(errno)); + ret = -1; + goto clean; + } else if (pid) { +@@ -394,9 +394,9 @@ client6_script(scriptpath, state, optinfo) + } while (wpid != pid && wpid > 0); + + if (wpid < 0) +- dprintf(LOG_ERR, FNAME, "wait: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "wait: %s", strerror(errno)); + else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "script \"%s\" terminated", scriptpath); + } + } else { +@@ -407,7 +407,7 @@ client6_script(scriptpath, state, optinfo) + argv[1] = NULL; + + if (safefile(scriptpath)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "script \"%s\" cannot be executed safely", + scriptpath); + exit(1); +@@ -423,7 +423,7 @@ client6_script(scriptpath, state, optinfo) + + execve(scriptpath, argv, envp); + +- dprintf(LOG_ERR, FNAME, "child: exec failed: %s", ++ debug_printf(LOG_ERR, FNAME, "child: exec failed: %s", + strerror(errno)); + exit(0); + } +diff --git a/dhcp6relay.c b/dhcp6relay.c +index eb0bce9..99b1227 100644 +--- a/dhcp6relay.c ++++ b/dhcp6relay.c +@@ -228,7 +228,7 @@ main(argc, argv) + + relay6_init(argc, argv); + +- dprintf(LOG_INFO, FNAME, "dhcp6relay started"); ++ debug_printf(LOG_INFO, FNAME, "dhcp6relay started"); + relay6_loop(); + + exit(0); +@@ -246,7 +246,7 @@ make_prefix(pstr0) + + /* make a local copy for safety */ + if (strlcpy(pstr, pstr0, sizeof (pstr)) >= sizeof (pstr)) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "prefix string too long (maybe bogus): %s", pstr0); + return (NULL); + } +@@ -256,27 +256,27 @@ make_prefix(pstr0) + plen = 128; /* assumes it as a host prefix */ + else { + if (p[1] == '\0') { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "no prefix length (ignored): %s", p + 1); + return (NULL); + } + plen = (int)strtoul(p + 1, &ep, 10); + if (*ep != '\0') { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "illegal prefix length (ignored): %s", p + 1); + return (NULL); + } + *p = '\0'; + } + if (inet_pton(AF_INET6, pstr, &paddr) != 1) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "inet_pton failed for %s", pstr); + return (NULL); + } + + /* allocate a new entry */ + if ((pent = (struct prefix_list *)malloc(sizeof (*pent))) == NULL) { +- dprintf(LOG_WARNING, FNAME, "memory allocation failed"); ++ debug_printf(LOG_WARNING, FNAME, "memory allocation failed"); + return (NULL); /* or abort? */ + } + +@@ -318,14 +318,14 @@ relay6_init(int ifnum, char *iflist[]) + hints.ai_flags = AI_PASSIVE; + error = getaddrinfo(serveraddr, DH6PORT_UPSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + goto failexit; + } + if (res->ai_family != PF_INET6 || + res->ai_addrlen < sizeof (sa6_server)) { + /* this should be impossible, but check for safety */ +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "getaddrinfo returned a bogus address: %s", + strerror(errno)); + goto failexit; +@@ -341,7 +341,7 @@ relay6_init(int ifnum, char *iflist[]) + rmh.msg_iovlen = 1; + rmsgctllen = CMSG_SPACE(sizeof (struct in6_pktinfo)); + if ((rmsgctlbuf = (char *)malloc(rmsgctllen)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + goto failexit; + } + +@@ -355,13 +355,13 @@ relay6_init(int ifnum, char *iflist[]) + hints.ai_flags = AI_PASSIVE; + error = getaddrinfo(NULL, DH6PORT_UPSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + goto failexit; + } + csock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (csock < 0) { +- dprintf(LOG_ERR, FNAME, "socket(csock): %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "socket(csock): %s", strerror(errno)); + goto failexit; + } + if (csock > maxfd) +@@ -369,20 +369,20 @@ relay6_init(int ifnum, char *iflist[]) + on = 1; + if (setsockopt(csock, SOL_SOCKET, SO_REUSEPORT, + &on, sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(csock, SO_REUSEPORT): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(csock, SO_REUSEPORT): %s", + strerror(errno)); + goto failexit; + } + #ifdef IPV6_V6ONLY + if (setsockopt(csock, IPPROTO_IPV6, IPV6_V6ONLY, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(csock, IPV6_V6ONLY): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(csock, IPV6_V6ONLY): %s", + strerror(errno)); + goto failexit; + } + #endif + if (bind(csock, res->ai_addr, res->ai_addrlen) < 0) { +- dprintf(LOG_ERR, FNAME, "bind(csock): %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "bind(csock): %s", strerror(errno)); + goto failexit; + } + freeaddrinfo(res); +@@ -390,14 +390,14 @@ relay6_init(int ifnum, char *iflist[]) + #ifdef IPV6_RECVPKTINFO + if (setsockopt(csock, IPPROTO_IPV6, IPV6_RECVPKTINFO, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(IPV6_RECVPKTINFO): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(IPV6_RECVPKTINFO): %s", + strerror(errno)); + goto failexit; + } + #else + if (setsockopt(csock, IPPROTO_IPV6, IPV6_PKTINFO, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(IPV6_PKTINFO): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(IPV6_PKTINFO): %s", + strerror(errno)); + goto failexit; + } +@@ -406,7 +406,7 @@ relay6_init(int ifnum, char *iflist[]) + hints.ai_flags = 0; + error = getaddrinfo(DH6ADDR_ALLAGENT, 0, &hints, &res2); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + goto failexit; + } +@@ -422,21 +422,21 @@ relay6_init(int ifnum, char *iflist[]) + + ifd = (struct ifid_list *)malloc(sizeof (*ifd)); + if (ifd == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "memory allocation failed"); + goto failexit; + } + memset(ifd, 0, sizeof (*ifd)); + ifd->ifid = if_nametoindex(ifp); + if (ifd->ifid == 0) { +- dprintf(LOG_ERR, FNAME, "invalid interface %s", ifp); ++ debug_printf(LOG_ERR, FNAME, "invalid interface %s", ifp); + goto failexit; + } + mreq6.ipv6mr_interface = ifd->ifid; + + if (setsockopt(csock, IPPROTO_IPV6, IPV6_JOIN_GROUP, + &mreq6, sizeof (mreq6))) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(csock, IPV6_JOIN_GROUP): %s", + strerror(errno)); + goto failexit; +@@ -451,7 +451,7 @@ relay6_init(int ifnum, char *iflist[]) + */ + relayifid = if_nametoindex(relaydevice); + if (relayifid == 0) +- dprintf(LOG_ERR, FNAME, "invalid interface %s", relaydevice); ++ debug_printf(LOG_ERR, FNAME, "invalid interface %s", relaydevice); + /* + * We are not really sure if we need to listen on the downstream + * port to receive packets from servers. We'll need to clarify the +@@ -460,14 +460,14 @@ relay6_init(int ifnum, char *iflist[]) + hints.ai_flags = AI_PASSIVE; + error = getaddrinfo(boundaddr, DH6PORT_DOWNSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + goto failexit; + } + memcpy(&sa6_client, res->ai_addr, sizeof (sa6_client)); + ssock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (ssock < 0) { +- dprintf(LOG_ERR, FNAME, "socket(outsock): %s", ++ debug_printf(LOG_ERR, FNAME, "socket(outsock): %s", + strerror(error)); + goto failexit; + } +@@ -480,7 +480,7 @@ relay6_init(int ifnum, char *iflist[]) + */ + if (setsockopt(ssock, SOL_SOCKET, SO_REUSEPORT, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(ssock, SO_REUSEPORT): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(ssock, SO_REUSEPORT): %s", + strerror(errno)); + goto failexit; + } +@@ -488,13 +488,13 @@ relay6_init(int ifnum, char *iflist[]) + #ifdef IPV6_V6ONLY + if (setsockopt(ssock, IPPROTO_IPV6, IPV6_V6ONLY, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(ssock, IPV6_V6ONLY): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(ssock, IPV6_V6ONLY): %s", + strerror(errno)); + goto failexit; + } + #endif + if (bind(ssock, res->ai_addr, res->ai_addrlen) < 0) { +- dprintf(LOG_ERR, FNAME, "bind(ssock): %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "bind(ssock): %s", strerror(errno)); + goto failexit; + } + freeaddrinfo(res); +@@ -503,21 +503,21 @@ relay6_init(int ifnum, char *iflist[]) + #ifdef IPV6_RECVPKTINFO + if (setsockopt(ssock, IPPROTO_IPV6, IPV6_RECVPKTINFO, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(IPV6_RECVPKTINFO): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(IPV6_RECVPKTINFO): %s", + strerror(errno)); + goto failexit; + } + #else + if (setsockopt(ssock, IPPROTO_IPV6, IPV6_PKTINFO, + &on, sizeof (on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(IPV6_PKTINFO): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(IPV6_PKTINFO): %s", + strerror(errno)); + goto failexit; + } + #endif + + if (signal(SIGTERM, relay6_signal) == SIG_ERR) { +- dprintf(LOG_WARNING, FNAME, "failed to set signal: %s", ++ debug_printf(LOG_WARNING, FNAME, "failed to set signal: %s", + strerror(errno)); + exit(1); + } +@@ -605,15 +605,15 @@ relay6_recv(s, fromclient) + rmh.msg_namelen = sizeof (from); + + if ((len = recvmsg(s, &rmh, 0)) < 0) { +- dprintf(LOG_WARNING, FNAME, "recvmsg: %s", strerror(errno)); ++ debug_printf(LOG_WARNING, FNAME, "recvmsg: %s", strerror(errno)); + return; + } + +- dprintf(LOG_DEBUG, FNAME, "from %s, size %d", ++ debug_printf(LOG_DEBUG, FNAME, "from %s, size %d", + addr2str((struct sockaddr *)&from), len); + + if (((struct sockaddr *)&from)->sa_family != AF_INET6) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "non-IPv6 packet is received (AF %d) ", + ((struct sockaddr *)&from)->sa_family); + return; +@@ -632,7 +632,7 @@ relay6_recv(s, fromclient) + } + } + if (pi == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to get the arrival interface"); + return; + } +@@ -649,7 +649,7 @@ relay6_recv(s, fromclient) + if (ifd == NULL && pi->ipi6_ifindex != relayifid) + return; + if (if_indextoname(pi->ipi6_ifindex, ifname) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "if_indextoname(id = %d): %s", + pi->ipi6_ifindex, strerror(errno)); + return; +@@ -657,12 +657,12 @@ relay6_recv(s, fromclient) + + /* packet validation */ + if (len < sizeof (*dh6)) { +- dprintf(LOG_INFO, FNAME, "short packet (%d bytes)", len); ++ debug_printf(LOG_INFO, FNAME, "short packet (%d bytes)", len); + return; + } + + dh6 = (struct dhcp6 *)rdatabuf; +- dprintf(LOG_DEBUG, FNAME, "received %s from %s", ++ debug_printf(LOG_DEBUG, FNAME, "received %s from %s", + dhcp6msgstr(dh6->dh6_msgtype), addr2str((struct sockaddr *)&from)); + + /* +@@ -694,7 +694,7 @@ relay6_recv(s, fromclient) + (struct sockaddr *)&from); + break; + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unexpected message (%s) on the client side " + "from %s", dhcp6msgstr(dh6->dh6_msgtype), + addr2str((struct sockaddr *)&from)); +@@ -702,7 +702,7 @@ relay6_recv(s, fromclient) + } + } else { + if (dh6->dh6_msgtype != DH6_RELAY_REPLY) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unexpected message (%s) on the server side" + "from %s", dhcp6msgstr(dh6->dh6_msgtype), + addr2str((struct sockaddr *)&from)); +@@ -787,7 +787,7 @@ relay_to_server(dh6, len, from, ifname, ifid) + + /* Relay message */ + if ((optinfo.relaymsg_msg = malloc(len)) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to allocate memory to copy the original packet: " + "%s", strerror(errno)); + goto out; +@@ -797,7 +797,7 @@ relay_to_server(dh6, len, from, ifname, ifid) + + /* Interface-id. We always use this option. */ + if ((optinfo.ifidopt_id = malloc(sizeof (ifid))) == NULL) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to allocate memory for IFID: %s", strerror(errno)); + goto out; + } +@@ -823,7 +823,7 @@ relay_to_server(dh6, len, from, ifname, ifid) + break; + } + if (p == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to find a global address on %s", ifname); + + /* +@@ -848,7 +848,7 @@ relay_to_server(dh6, len, from, ifname, ifid) + * [RFC3315 Section 20.1.2] + */ + if (dh6relay0->dh6relay_hcnt >= DHCP6_RELAY_HOP_COUNT_LIMIT) { +- dprintf(LOG_INFO, FNAME, "too many relay forwardings"); ++ debug_printf(LOG_INFO, FNAME, "too many relay forwardings"); + goto out; + } + +@@ -871,7 +871,7 @@ relay_to_server(dh6, len, from, ifname, ifid) + (struct dhcp6opt *)(dh6relay + 1), + (struct dhcp6opt *)(relaybuf + sizeof (relaybuf)), + &optinfo)) < 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to construct relay options"); + goto out; + } +@@ -892,22 +892,22 @@ relay_to_server(dh6, len, from, ifname, ifid) + pktinfo.ipi6_ifindex = relayifid; + if (make_msgcontrol(&mh, ctlbuf, sizeof (ctlbuf), + &pktinfo, mhops)) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to make message control data"); + goto out; + } + } + + if ((cc = sendmsg(ssock, &mh, 0)) < 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "sendmsg %s failed: %s", + addr2str((struct sockaddr *)&sa6_server), strerror(errno)); + } else if (cc != relaylen) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to send a complete packet to %s", + addr2str((struct sockaddr *)&sa6_server)); + } else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "relay a message to a server %s", + addr2str((struct sockaddr *)&sa6_server)); + } +@@ -934,7 +934,7 @@ relay_to_client(dh6relay, len, from) + static struct iovec iov[2]; + char ctlbuf[CMSG_SPACE(sizeof (struct in6_pktinfo))]; + +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "dhcp6 relay reply: hop=%d, linkaddr=%s, peeraddr=%s", + dh6relay->dh6relay_hcnt, + in6addr2str(&dh6relay->dh6relay_linkaddr, 0), +@@ -946,20 +946,20 @@ relay_to_client(dh6relay, len, from) + dhcp6_init_options(&optinfo); + if (dhcp6_get_options((struct dhcp6opt *)(dh6relay + 1), + (struct dhcp6opt *)((char *)dh6relay + len), &optinfo) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to parse options"); ++ debug_printf(LOG_INFO, FNAME, "failed to parse options"); + return; + } + + /* A relay reply message must include a relay message option */ + if (optinfo.relaymsg_msg == NULL) { +- dprintf(LOG_INFO, FNAME, "relay reply message from %s " ++ debug_printf(LOG_INFO, FNAME, "relay reply message from %s " + "without a relay message", addr2str(from)); + goto out; + } + + /* minimum validation for the inner message */ + if (optinfo.relaymsg_len < sizeof (struct dhcp6)) { +- dprintf(LOG_INFO, FNAME, "short relay message from %s", ++ debug_printf(LOG_INFO, FNAME, "short relay message from %s", + addr2str(from)); + goto out; + } +@@ -971,7 +971,7 @@ relay_to_client(dh6relay, len, from) + ifid = 0; + if (optinfo.ifidopt_id) { + if (optinfo.ifidopt_len != sizeof (ifid)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unexpected length (%d) for Interface ID from %s", + optinfo.ifidopt_len, addr2str(from)); + goto out; +@@ -981,13 +981,13 @@ relay_to_client(dh6relay, len, from) + + /* validation for ID */ + if ((if_indextoname(ifid, ifnamebuf)) == NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "invalid interface ID: %x", ifid); + goto out; + } + } + } else { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "Interface ID is not included from %s", addr2str(from)); + /* + * the responding server should be buggy, but we deal with it. +@@ -1005,7 +1005,7 @@ relay_to_client(dh6relay, len, from) + } + + if (ifid == 0) { +- dprintf(LOG_INFO, FNAME, "failed to determine relay link"); ++ debug_printf(LOG_INFO, FNAME, "failed to determine relay link"); + goto out; + } + +@@ -1036,22 +1036,22 @@ relay_to_client(dh6relay, len, from) + memset(&pktinfo, 0, sizeof (pktinfo)); + pktinfo.ipi6_ifindex = ifid; + if (make_msgcontrol(&mh, ctlbuf, sizeof (ctlbuf), &pktinfo, 0)) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to make message control data"); + goto out; + } + + /* send packet */ + if ((cc = sendmsg(csock, &mh, 0)) < 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "sendmsg to %s failed: %s", + addr2str((struct sockaddr *)&peer), strerror(errno)); + } else if (cc != optinfo.relaymsg_len) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to send a complete packet to %s", + addr2str((struct sockaddr *)&peer)); + } else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "relay a message to a client %s", + addr2str((struct sockaddr *)&peer)); + } +diff --git a/dhcp6relay_script.c b/dhcp6relay_script.c +index 82f5eab..7444b54 100644 +--- a/dhcp6relay_script.c ++++ b/dhcp6relay_script.c +@@ -87,7 +87,7 @@ relay6_script(scriptpath, client, dh6, len) + /* only replies are interesting */ + if (dh6->dh6_msgtype != DH6_REPLY) { + if (dh6->dh6_msgtype != DH6_ADVERTISE) { +- dprintf(LOG_INFO, FNAME, "forward msg#%d to client?", ++ debug_printf(LOG_INFO, FNAME, "forward msg#%d to client?", + dh6->dh6_msgtype); + return -1; + } +@@ -99,7 +99,7 @@ relay6_script(scriptpath, client, dh6, len) + dhcp6_init_options(&optinfo); + if (dhcp6_get_options((struct dhcp6opt *)(dh6 + 1), optend, + &optinfo) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to parse options"); ++ debug_printf(LOG_INFO, FNAME, "failed to parse options"); + return -1; + } + +@@ -118,7 +118,7 @@ relay6_script(scriptpath, client, dh6, len) + + /* allocate an environments array */ + if ((envp = malloc(sizeof (char *) * envc)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate environment buffer"); + dhcp6_clear_options(&optinfo); + return -1; +@@ -132,14 +132,14 @@ relay6_script(scriptpath, client, dh6, len) + /* address */ + t = addr2str((struct sockaddr *) client); + if (t == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to get address of client"); + ret = -1; + goto clean; + } + elen = sizeof (client_str) + 1 + strlen(t) + 1; + if ((s = envp[i++] = malloc(elen)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate string for client"); + ret = -1; + goto clean; +@@ -167,7 +167,7 @@ relay6_script(scriptpath, client, dh6, len) + /* launch the script */ + pid = fork(); + if (pid < 0) { +- dprintf(LOG_ERR, FNAME, "failed to fork: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "failed to fork: %s", strerror(errno)); + ret = -1; + goto clean; + } else if (pid) { +@@ -178,9 +178,9 @@ relay6_script(scriptpath, client, dh6, len) + } while (wpid != pid && wpid > 0); + + if (wpid < 0) +- dprintf(LOG_ERR, FNAME, "wait: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "wait: %s", strerror(errno)); + else { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "script \"%s\" terminated", scriptpath); + } + } else { +@@ -191,7 +191,7 @@ relay6_script(scriptpath, client, dh6, len) + argv[1] = NULL; + + if (safefile(scriptpath)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "script \"%s\" cannot be executed safely", + scriptpath); + exit(1); +@@ -208,7 +208,7 @@ relay6_script(scriptpath, client, dh6, len) + + execve(scriptpath, argv, envp); + +- dprintf(LOG_ERR, FNAME, "child: exec failed: %s", ++ debug_printf(LOG_ERR, FNAME, "child: exec failed: %s", + strerror(errno)); + exit(0); + } +@@ -254,12 +254,12 @@ iapd2str(num, iav) + break; + + default: +- dprintf(LOG_ERR, FNAME, "impossible subopt"); ++ debug_printf(LOG_ERR, FNAME, "impossible subopt"); + } + } + + if ((r = strdup(s)) == NULL) +- dprintf(LOG_ERR, FNAME, "failed to allocate iapd_%d", num); ++ debug_printf(LOG_ERR, FNAME, "failed to allocate iapd_%d", num); + return r; + } + +@@ -294,11 +294,11 @@ iana2str(num, iav) + break; + + default: +- dprintf(LOG_ERR, FNAME, "impossible subopt"); ++ debug_printf(LOG_ERR, FNAME, "impossible subopt"); + } + } + + if ((r = strdup(s)) == NULL) +- dprintf(LOG_ERR, FNAME, "failed to allocate iana_%d", num); ++ debug_printf(LOG_ERR, FNAME, "failed to allocate iana_%d", num); + return r; + } +diff --git a/dhcp6s.c b/dhcp6s.c +index 494e571..ff8b17d 100644 +--- a/dhcp6s.c ++++ b/dhcp6s.c +@@ -311,7 +311,7 @@ main(argc, argv) + exit(1); + + if ((cfparse(conffile)) != 0) { +- dprintf(LOG_ERR, FNAME, "failed to parse configuration file"); ++ debug_printf(LOG_ERR, FNAME, "failed to parse configuration file"); + exit(1); + } + +@@ -335,7 +335,7 @@ main(argc, argv) + /* prohibit a mixture of old and new style of DNS server config */ + if (!TAILQ_EMPTY(&arg_dnslist)) { + if (!TAILQ_EMPTY(&dnslist)) { +- dprintf(LOG_INFO, FNAME, "do not specify DNS servers " ++ debug_printf(LOG_INFO, FNAME, "do not specify DNS servers " + "both by command line and by configuration file."); + exit(1); + } +@@ -374,24 +374,24 @@ server6_init() + + TAILQ_INIT(&dhcp6_binding_head); + if (lease_init() != 0) { +- dprintf(LOG_ERR, FNAME, "failed to initialize the lease table"); ++ debug_printf(LOG_ERR, FNAME, "failed to initialize the lease table"); + exit(1); + } + + ifidx = if_nametoindex(device); + if (ifidx == 0) { +- dprintf(LOG_ERR, FNAME, "invalid interface %s", device); ++ debug_printf(LOG_ERR, FNAME, "invalid interface %s", device); + exit(1); + } + + /* get our DUID */ + if (get_duid(DUID_FILE, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to get a DUID"); ++ debug_printf(LOG_ERR, FNAME, "failed to get a DUID"); + exit(1); + } + + if (dhcp6_ctl_authinit(ctlkeyfile, &ctlkey, &ctldigestlen) != 0) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to initialize control message authentication"); + /* run the server anyway */ + } +@@ -403,7 +403,7 @@ server6_init() + rmh.msg_iovlen = 1; + rmsgctllen = CMSG_SPACE(sizeof(struct in6_pktinfo)); + if ((rmsgctlbuf = (char *)malloc(rmsgctllen)) == NULL) { +- dprintf(LOG_ERR, FNAME, "memory allocation failed"); ++ debug_printf(LOG_ERR, FNAME, "memory allocation failed"); + exit(1); + } + +@@ -415,32 +415,32 @@ server6_init() + hints.ai_flags = AI_PASSIVE; + error = getaddrinfo(NULL, DH6PORT_UPSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } + insock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (insock < 0) { +- dprintf(LOG_ERR, FNAME, "socket(insock): %s", ++ debug_printf(LOG_ERR, FNAME, "socket(insock): %s", + strerror(errno)); + exit(1); + } + if (setsockopt(insock, SOL_SOCKET, SO_REUSEPORT, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(insock, SO_REUSEPORT): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(insock, SO_REUSEPORT): %s", + strerror(errno)); + exit(1); + } + if (setsockopt(insock, SOL_SOCKET, SO_REUSEADDR, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, "setsockopt(insock, SO_REUSEADDR): %s", ++ debug_printf(LOG_ERR, FNAME, "setsockopt(insock, SO_REUSEADDR): %s", + strerror(errno)); + exit(1); + } + #ifdef IPV6_RECVPKTINFO + if (setsockopt(insock, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(inbound, IPV6_RECVPKTINFO): %s", + strerror(errno)); + exit(1); +@@ -448,7 +448,7 @@ server6_init() + #else + if (setsockopt(insock, IPPROTO_IPV6, IPV6_PKTINFO, &on, + sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(inbound, IPV6_PKTINFO): %s", + strerror(errno)); + exit(1); +@@ -457,13 +457,13 @@ server6_init() + #ifdef IPV6_V6ONLY + if (setsockopt(insock, IPPROTO_IPV6, IPV6_V6ONLY, + &on, sizeof(on)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(inbound, IPV6_V6ONLY): %s", strerror(errno)); + exit(1); + } + #endif + if (bind(insock, res->ai_addr, res->ai_addrlen) < 0) { +- dprintf(LOG_ERR, FNAME, "bind(insock): %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "bind(insock): %s", strerror(errno)); + exit(1); + } + freeaddrinfo(res); +@@ -471,7 +471,7 @@ server6_init() + hints.ai_flags = 0; + error = getaddrinfo(DH6ADDR_ALLAGENT, DH6PORT_UPSTREAM, &hints, &res2); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } +@@ -482,7 +482,7 @@ server6_init() + sizeof(mreq6.ipv6mr_multiaddr)); + if (setsockopt(insock, IPPROTO_IPV6, IPV6_JOIN_GROUP, + &mreq6, sizeof(mreq6))) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(insock, IPV6_JOIN_GROUP): %s", + strerror(errno)); + exit(1); +@@ -493,7 +493,7 @@ server6_init() + error = getaddrinfo(DH6ADDR_ALLSERVER, DH6PORT_UPSTREAM, + &hints, &res2); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } +@@ -504,7 +504,7 @@ server6_init() + sizeof(mreq6.ipv6mr_multiaddr)); + if (setsockopt(insock, IPPROTO_IPV6, IPV6_JOIN_GROUP, + &mreq6, sizeof(mreq6))) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(insock, IPV6_JOIN_GROUP): %s", + strerror(errno)); + exit(1); +@@ -514,20 +514,20 @@ server6_init() + hints.ai_flags = 0; + error = getaddrinfo(NULL, DH6PORT_DOWNSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } + outsock = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (outsock < 0) { +- dprintf(LOG_ERR, FNAME, "socket(outsock): %s", ++ debug_printf(LOG_ERR, FNAME, "socket(outsock): %s", + strerror(errno)); + exit(1); + } + /* set outgoing interface of multicast packets for DHCP reconfig */ + if (setsockopt(outsock, IPPROTO_IPV6, IPV6_MULTICAST_IF, + &ifidx, sizeof(ifidx)) < 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "setsockopt(outsock, IPV6_MULTICAST_IF): %s", + strerror(errno)); + exit(1); +@@ -535,7 +535,7 @@ server6_init() + #if !defined(__linux__) && !defined(__sun__) + /* make the socket write-only */ + if (shutdown(outsock, 0)) { +- dprintf(LOG_ERR, FNAME, "shutdown(outbound, 0): %s", ++ debug_printf(LOG_ERR, FNAME, "shutdown(outbound, 0): %s", + strerror(errno)); + exit(1); + } +@@ -548,7 +548,7 @@ server6_init() + hints.ai_protocol = IPPROTO_UDP; + error = getaddrinfo("::", DH6PORT_DOWNSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } +@@ -563,7 +563,7 @@ server6_init() + hints.ai_protocol = IPPROTO_UDP; + error = getaddrinfo("::", DH6PORT_UPSTREAM, &hints, &res); + if (error) { +- dprintf(LOG_ERR, FNAME, "getaddrinfo: %s", ++ debug_printf(LOG_ERR, FNAME, "getaddrinfo: %s", + gai_strerror(error)); + exit(1); + } +@@ -574,16 +574,16 @@ server6_init() + + /* set up control socket */ + if (ctlkey == NULL) +- dprintf(LOG_NOTICE, FNAME, "skip opening control port"); ++ debug_printf(LOG_NOTICE, FNAME, "skip opening control port"); + else if (dhcp6_ctl_init(ctladdr, ctlport, + DHCP6CTL_DEF_COMMANDQUEUELEN, &ctlsock)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to initialize control channel"); + exit(1); + } + + if (signal(SIGTERM, server6_signal) == SIG_ERR) { +- dprintf(LOG_WARNING, FNAME, "failed to set signal: %s", ++ debug_printf(LOG_WARNING, FNAME, "failed to set signal: %s", + strerror(errno)); + exit(1); + } +@@ -627,7 +627,7 @@ server6_mainloop() + switch (ret) { + case -1: + if (errno != EINTR) { +- dprintf(LOG_ERR, FNAME, "select: %s", ++ debug_printf(LOG_ERR, FNAME, "select: %s", + strerror(errno)); + exit(1); + } +@@ -714,31 +714,31 @@ server6_do_ctlcommand(buf, len) + commandlen = (int)(ntohs(ctlhead->len)); + version = ntohs(ctlhead->version); + if (len != sizeof(struct dhcp6ctl) + commandlen) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "assumption failure: command length mismatch"); + return (DHCP6CTL_R_FAILURE); + } + + /* replay protection and message authentication */ + if ((now = time(NULL)) < 0) { +- dprintf(LOG_ERR, FNAME, "failed to get current time: %s", ++ debug_printf(LOG_ERR, FNAME, "failed to get current time: %s", + strerror(errno)); + return (DHCP6CTL_R_FAILURE); + } + ts0 = (u_int32_t)now; + ts = ntohl(ctlhead->timestamp); + if (ts + CTLSKEW < ts0 || (ts - CTLSKEW) > ts0) { +- dprintf(LOG_INFO, FNAME, "timestamp is out of range"); ++ debug_printf(LOG_INFO, FNAME, "timestamp is out of range"); + return (DHCP6CTL_R_FAILURE); + } + + if (ctlkey == NULL) { /* should not happen!! */ +- dprintf(LOG_ERR, FNAME, "no secret key for control channel"); ++ debug_printf(LOG_ERR, FNAME, "no secret key for control channel"); + return (DHCP6CTL_R_FAILURE); + } + if (dhcp6_verify_mac(buf, len, DHCP6CTL_AUTHPROTO_UNDEF, + DHCP6CTL_AUTHALG_HMACMD5, sizeof(*ctlhead), ctlkey) != 0) { +- dprintf(LOG_INFO, FNAME, "authentication failure"); ++ debug_printf(LOG_INFO, FNAME, "authentication failure"); + return (DHCP6CTL_R_FAILURE); + } + +@@ -746,14 +746,14 @@ server6_do_ctlcommand(buf, len) + commandlen -= ctldigestlen; + + if (version > DHCP6CTL_VERSION) { +- dprintf(LOG_INFO, FNAME, "unsupported version: %d", version); ++ debug_printf(LOG_INFO, FNAME, "unsupported version: %d", version); + return (DHCP6CTL_R_FAILURE); + } + + switch (command) { + case DHCP6CTL_COMMAND_RELOAD: + if (commandlen != 0) { +- dprintf(LOG_INFO, FNAME, "invalid command length " ++ debug_printf(LOG_INFO, FNAME, "invalid command length " + "for reload: %d", commandlen); + return (DHCP6CTL_R_DONE); + } +@@ -761,7 +761,7 @@ server6_do_ctlcommand(buf, len) + break; + case DHCP6CTL_COMMAND_STOP: + if (commandlen != 0) { +- dprintf(LOG_INFO, FNAME, "invalid command length " ++ debug_printf(LOG_INFO, FNAME, "invalid command length " + "for stop: %d", commandlen); + return (DHCP6CTL_R_DONE); + } +@@ -771,7 +771,7 @@ server6_do_ctlcommand(buf, len) + if (get_val32(&bp, &commandlen, &p32)) + return (DHCP6CTL_R_FAILURE); + if (p32 != DHCP6CTL_BINDING) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown remove target: %ul", p32); + return (DHCP6CTL_R_FAILURE); + } +@@ -779,7 +779,7 @@ server6_do_ctlcommand(buf, len) + if (get_val32(&bp, &commandlen, &p32)) + return (DHCP6CTL_R_FAILURE); + if (p32 != DHCP6CTL_BINDING_IA) { +- dprintf(LOG_INFO, FNAME, "unknown binding type: %ul", ++ debug_printf(LOG_INFO, FNAME, "unknown binding type: %ul", + p32); + return (DHCP6CTL_R_FAILURE); + } +@@ -788,7 +788,7 @@ server6_do_ctlcommand(buf, len) + return (DHCP6CTL_R_FAILURE); + if (ntohl(iaspec.type) != DHCP6CTL_IA_PD && + ntohl(iaspec.type) != DHCP6CTL_IA_NA) { +- dprintf(LOG_INFO, FNAME, "unknown IA type: %ul", ++ debug_printf(LOG_INFO, FNAME, "unknown IA type: %ul", + ntohl(iaspec.type)); + return (DHCP6CTL_R_FAILURE); + } +@@ -796,7 +796,7 @@ server6_do_ctlcommand(buf, len) + duidlen = ntohl(iaspec.duidlen); + + if (duidlen > commandlen) { +- dprintf(LOG_INFO, FNAME, "DUID length mismatch"); ++ debug_printf(LOG_INFO, FNAME, "DUID length mismatch"); + return (DHCP6CTL_R_FAILURE); + } + +@@ -809,7 +809,7 @@ server6_do_ctlcommand(buf, len) + binding = find_binding(&duid, DHCP6_BINDING_IA, + DHCP6_LISTVAL_IANA, iaid); + if (binding == NULL) { +- dprintf(LOG_INFO, FNAME, "no such binding"); ++ debug_printf(LOG_INFO, FNAME, "no such binding"); + return (DHCP6CTL_R_FAILURE); + } + } +@@ -817,7 +817,7 @@ server6_do_ctlcommand(buf, len) + + break; + default: +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown control command: %d (len=%d)", + (int)command, commandlen); + return (DHCP6CTL_R_FAILURE); +@@ -831,12 +831,12 @@ server6_reload() + { + /* reload the configuration file */ + if (cfparse(conffile) != 0) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "failed to reload configuration file"); + return; + } + +- dprintf(LOG_NOTICE, FNAME, "server reloaded"); ++ debug_printf(LOG_NOTICE, FNAME, "server reloaded"); + + return; + } +@@ -846,7 +846,7 @@ server6_stop() + { + /* Right now, we simply stop running */ + +- dprintf(LOG_NOTICE, FNAME, "exiting"); ++ debug_printf(LOG_NOTICE, FNAME, "exiting"); + + exit (0); + } +@@ -885,7 +885,7 @@ server6_recv(s) + mhdr.msg_controllen = sizeof(cmsgbuf); + + if ((len = recvmsg(insock, &mhdr, 0)) < 0) { +- dprintf(LOG_ERR, FNAME, "recvmsg: %s", strerror(errno)); ++ debug_printf(LOG_ERR, FNAME, "recvmsg: %s", strerror(errno)); + return; + } + fromlen = mhdr.msg_namelen; +@@ -899,7 +899,7 @@ server6_recv(s) + } + } + if (pi == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to get packet info"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to get packet info"); + return; + } + /* +@@ -910,7 +910,7 @@ server6_recv(s) + if (pi->ipi6_ifindex != ifidx) + return; + if ((ifp = find_ifconfbyid((unsigned int)pi->ipi6_ifindex)) == NULL) { +- dprintf(LOG_INFO, FNAME, "unexpected interface (%d)", ++ debug_printf(LOG_INFO, FNAME, "unexpected interface (%d)", + (unsigned int)pi->ipi6_ifindex); + return; + } +@@ -918,11 +918,11 @@ server6_recv(s) + dh6 = (struct dhcp6 *)rdatabuf; + + if (len < sizeof(*dh6)) { +- dprintf(LOG_INFO, FNAME, "short packet (%d bytes)", len); ++ debug_printf(LOG_INFO, FNAME, "short packet (%d bytes)", len); + return; + } + +- dprintf(LOG_DEBUG, FNAME, "received %s from %s", ++ debug_printf(LOG_DEBUG, FNAME, "received %s from %s", + dhcp6msgstr(dh6->dh6_msgtype), + addr2str((struct sockaddr *)&from)); + +@@ -937,7 +937,7 @@ server6_recv(s) + dh6->dh6_msgtype == DH6_CONFIRM || + dh6->dh6_msgtype == DH6_REBIND || + dh6->dh6_msgtype == DH6_INFORM_REQ)) { +- dprintf(LOG_INFO, FNAME, "invalid unicast message"); ++ debug_printf(LOG_INFO, FNAME, "invalid unicast message"); + return; + } + +@@ -947,7 +947,7 @@ server6_recv(s) + * reject them here. + */ + if (dh6->dh6_msgtype == DH6_RELAY_REPLY) { +- dprintf(LOG_INFO, FNAME, "relay reply message from %s", ++ debug_printf(LOG_INFO, FNAME, "relay reply message from %s", + addr2str((struct sockaddr *)&from)); + return; + +@@ -969,7 +969,7 @@ server6_recv(s) + dhcp6_init_options(&optinfo); + if (dhcp6_get_options((struct dhcp6opt *)(dh6 + 1), + optend, &optinfo) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to parse options"); ++ debug_printf(LOG_INFO, FNAME, "failed to parse options"); + goto end; + } + +@@ -1007,7 +1007,7 @@ server6_recv(s) + (struct sockaddr *)&from, fromlen, &relayinfohead); + break; + default: +- dprintf(LOG_INFO, FNAME, "unknown or unsupported msgtype (%s)", ++ debug_printf(LOG_INFO, FNAME, "unknown or unsupported msgtype (%s)", + dhcp6msgstr(dh6->dh6_msgtype)); + break; + } +@@ -1052,11 +1052,11 @@ process_relayforw(dh6p, optendp, relayinfohead, from) + again: + len = (void *)optend - (void *)dh6relay; + if (len < sizeof (*dh6relay)) { +- dprintf(LOG_INFO, FNAME, "short relay message from %s", ++ debug_printf(LOG_INFO, FNAME, "short relay message from %s", + addr2str(from)); + return (-1); + } +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "dhcp6 relay: hop=%d, linkaddr=%s, peeraddr=%s", + dh6relay->dh6relay_hcnt, + in6addr2str(&dh6relay->dh6relay_linkaddr, 0), +@@ -1068,13 +1068,13 @@ process_relayforw(dh6p, optendp, relayinfohead, from) + dhcp6_init_options(&optinfo); + if (dhcp6_get_options((struct dhcp6opt *)(dh6relay + 1), + optend, &optinfo) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to parse options"); ++ debug_printf(LOG_INFO, FNAME, "failed to parse options"); + return (-1); + } + + /* A relay forward message must include a relay message option */ + if (optinfo.relaymsg_msg == NULL) { +- dprintf(LOG_INFO, FNAME, "relay forward from %s " ++ debug_printf(LOG_INFO, FNAME, "relay forward from %s " + "without a relay message", addr2str(from)); + return (-1); + } +@@ -1082,13 +1082,13 @@ process_relayforw(dh6p, optendp, relayinfohead, from) + /* relay message must contain a DHCPv6 message. */ + len = optinfo.relaymsg_len; + if (len < sizeof (struct dhcp6)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "short packet (%d bytes) in relay message", len); + return (-1); + } + + if ((relayinfo = malloc(sizeof (*relayinfo))) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to allocate relay info"); ++ debug_printf(LOG_ERR, FNAME, "failed to allocate relay info"); + return (-1); + } + memset(relayinfo, 0, sizeof (*relayinfo)); +@@ -1139,71 +1139,71 @@ set_statelessinfo(type, optinfo) + { + /* SIP domain name */ + if (dhcp6_copy_list(&optinfo->sipname_list, &sipnamelist)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy SIP domain list"); + return (-1); + } + + /* SIP server */ + if (dhcp6_copy_list(&optinfo->sip_list, &siplist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy SIP servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy SIP servers"); + return (-1); + } + + /* DNS server */ + if (dhcp6_copy_list(&optinfo->dns_list, &dnslist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy DNS servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy DNS servers"); + return (-1); + } + + /* DNS search list */ + if (dhcp6_copy_list(&optinfo->dnsname_list, &dnsnamelist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy DNS search list"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy DNS search list"); + return (-1); + } + + /* NTP server */ + if (dhcp6_copy_list(&optinfo->ntp_list, &ntplist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy NTP servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy NTP servers"); + return (-1); + } + + /* NIS domain name */ + if (dhcp6_copy_list(&optinfo->nisname_list, &nisnamelist)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy NIS domain list"); + return (-1); + } + + /* NIS server */ + if (dhcp6_copy_list(&optinfo->nis_list, &nislist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy NIS servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy NIS servers"); + return (-1); + } + + /* NIS+ domain name */ + if (dhcp6_copy_list(&optinfo->nispname_list, &nispnamelist)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy NIS+ domain list"); + return (-1); + } + + /* NIS+ server */ + if (dhcp6_copy_list(&optinfo->nisp_list, &nisplist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy NIS+ servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy NIS+ servers"); + return (-1); + } + + /* BCMCS domain name */ + if (dhcp6_copy_list(&optinfo->bcmcsname_list, &bcmcsnamelist)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to copy BCMCS domain list"); + return (-1); + } + + /* BCMCS server */ + if (dhcp6_copy_list(&optinfo->bcmcs_list, &bcmcslist)) { +- dprintf(LOG_ERR, FNAME, "failed to copy BCMCS servers"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy BCMCS servers"); + return (-1); + } + +@@ -1239,10 +1239,10 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + * [RFC3315 Section 15.2] + */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } else { +- dprintf(LOG_DEBUG, FNAME, "client ID %s", ++ debug_printf(LOG_DEBUG, FNAME, "client ID %s", + duidstr(&optinfo->clientID)); + } + +@@ -1252,13 +1252,13 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + * [RFC3315 Section 15.2] + */ + if (optinfo->serverID.duid_len) { +- dprintf(LOG_INFO, FNAME, "server ID option found"); ++ debug_printf(LOG_INFO, FNAME, "server ID option found"); + return (-1); + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, "found a host configuration for %s", ++ debug_printf(LOG_DEBUG, FNAME, "found a host configuration for %s", + client_conf->name); + } + +@@ -1269,7 +1269,7 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -1277,13 +1277,13 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + +@@ -1293,7 +1293,7 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* add other configuration information */ + if (set_statelessinfo(DH6_SOLICIT, &roptinfo)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to set other stateless information"); + goto fail; + } +@@ -1320,7 +1320,7 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + /* make a local copy of the configured prefixes */ + if (client_conf && + dhcp6_copy_list(&conflist, &client_conf->prefix_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make local data"); + goto fail; + } +@@ -1366,7 +1366,7 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + if (client_conf == NULL && ifp->pool.name) { + if ((client_conf = create_dynamic_hostconf(&optinfo->clientID, + &ifp->pool)) == NULL) +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make host configuration"); + } + TAILQ_INIT(&conflist); +@@ -1374,7 +1374,7 @@ react_solicit(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + /* make a local copy of the configured addresses */ + if (client_conf && + dhcp6_copy_list(&conflist, &client_conf->addr_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make local data"); + goto fail; + } +@@ -1444,17 +1444,17 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message must include a Server Identifier option */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } + /* the contents of the Server Identifier option must match ours */ + if (duidcmp(&optinfo->serverID, &server_duid)) { +- dprintf(LOG_INFO, FNAME, "server ID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "server ID mismatch"); + return (-1); + } + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + +@@ -1465,24 +1465,24 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -1504,11 +1504,11 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + TAILQ_EMPTY(relayinfohead)) { + u_int16_t stcode = DH6OPT_STCODE_USEMULTICAST; + +- dprintf(LOG_INFO, FNAME, "unexpected unicast message from %s", ++ debug_printf(LOG_INFO, FNAME, "unexpected unicast message from %s", + addr2str(from)); + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a status code"); ++ debug_printf(LOG_ERR, FNAME, "failed to add a status code"); + goto fail; + } + server6_send(DH6_REPLY, ifp, dh6, optinfo, from, +@@ -1538,7 +1538,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + /* make a local copy of the configured prefixes */ + if (client_conf && + dhcp6_copy_list(&conflist, &client_conf->prefix_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make local data"); + goto fail; + } +@@ -1563,7 +1563,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + iapd->val_ia.iaid, + DH6OPT_STCODE_NOPREFIXAVAIL, + &roptinfo.iapd_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make an option list"); + dhcp6_clear_list(&conflist); + goto fail; +@@ -1581,7 +1581,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + if (client_conf == NULL && ifp->pool.name) { + if ((client_conf = create_dynamic_hostconf(&optinfo->clientID, + &ifp->pool)) == NULL) +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make host configuration"); + } + TAILQ_INIT(&conflist); +@@ -1589,7 +1589,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + /* make a local copy of the configured prefixes */ + if (client_conf && + dhcp6_copy_list(&conflist, &client_conf->addr_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make local data"); + goto fail; + } +@@ -1607,7 +1607,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + iana->val_ia.iaid, + DH6OPT_STCODE_NOADDRSAVAIL, + &roptinfo.iana_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make an option list"); + dhcp6_clear_list(&conflist); + goto fail; +@@ -1640,7 +1640,7 @@ react_request(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + * information to be assigned to the client. + */ + if (set_statelessinfo(DH6_REQUEST, &roptinfo)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to set other stateless information"); + goto fail; + } +@@ -1677,17 +1677,17 @@ react_renew(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message must include a Server Identifier option */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } + /* the contents of the Server Identifier option must match ours */ + if (duidcmp(&optinfo->serverID, &server_duid)) { +- dprintf(LOG_INFO, FNAME, "server ID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "server ID mismatch"); + return (-1); + } + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + +@@ -1698,24 +1698,24 @@ react_renew(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -1735,11 +1735,11 @@ react_renew(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + TAILQ_EMPTY(relayinfohead)) { + u_int16_t stcode = DH6OPT_STCODE_USEMULTICAST; + +- dprintf(LOG_INFO, FNAME, "unexpected unicast message from %s", ++ debug_printf(LOG_INFO, FNAME, "unexpected unicast message from %s", + addr2str(from)); + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a status code"); ++ debug_printf(LOG_ERR, FNAME, "failed to add a status code"); + goto fail; + } + server6_send(DH6_REPLY, ifp, dh6, optinfo, from, +@@ -1764,7 +1764,7 @@ react_renew(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* add other configuration information */ + if (set_statelessinfo(DH6_RENEW, &roptinfo)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to set other stateless information"); + goto fail; + } +@@ -1799,13 +1799,13 @@ react_rebind(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + + /* the message must not include a server Identifier option */ + if (optinfo->serverID.duid_len) { +- dprintf(LOG_INFO, FNAME, "server ID option is included in " ++ debug_printf(LOG_INFO, FNAME, "server ID option is included in " + "a rebind message"); + return (-1); + } +@@ -1817,24 +1817,24 @@ react_rebind(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -1866,13 +1866,13 @@ react_rebind(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + */ + if (TAILQ_EMPTY(&roptinfo.iapd_list) && + TAILQ_EMPTY(&roptinfo.iana_list)) { +- dprintf(LOG_INFO, FNAME, "no useful information for a rebind"); ++ debug_printf(LOG_INFO, FNAME, "no useful information for a rebind"); + goto fail; /* discard the rebind */ + } + + /* add other configuration information */ + if (set_statelessinfo(DH6_REBIND, &roptinfo)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to set other stateless information"); + goto fail; + } +@@ -1908,17 +1908,17 @@ react_release(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message must include a Server Identifier option */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } + /* the contents of the Server Identifier option must match ours */ + if (duidcmp(&optinfo->serverID, &server_duid)) { +- dprintf(LOG_INFO, FNAME, "server ID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "server ID mismatch"); + return (-1); + } + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + +@@ -1929,24 +1929,24 @@ react_release(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -1966,11 +1966,11 @@ react_release(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + TAILQ_EMPTY(relayinfohead)) { + u_int16_t stcode = DH6OPT_STCODE_USEMULTICAST; + +- dprintf(LOG_INFO, FNAME, "unexpected unicast message from %s", ++ debug_printf(LOG_INFO, FNAME, "unexpected unicast message from %s", + addr2str(from)); + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a status code"); ++ debug_printf(LOG_ERR, FNAME, "failed to add a status code"); + goto fail; + } + server6_send(DH6_REPLY, ifp, dh6, optinfo, from, +@@ -2001,7 +2001,7 @@ react_release(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + stcode = DH6OPT_STCODE_SUCCESS; + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to add a status code"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to add a status code"); + goto fail; + } + +@@ -2037,17 +2037,17 @@ react_decline(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message must include a Server Identifier option */ + if (optinfo->serverID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no server ID option"); ++ debug_printf(LOG_INFO, FNAME, "no server ID option"); + return (-1); + } + /* the contents of the Server Identifier option must match ours */ + if (duidcmp(&optinfo->serverID, &server_duid)) { +- dprintf(LOG_INFO, FNAME, "server ID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "server ID mismatch"); + return (-1); + } + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + +@@ -2058,24 +2058,24 @@ react_decline(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -2095,11 +2095,11 @@ react_decline(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + TAILQ_EMPTY(relayinfohead)) { + stcode = DH6OPT_STCODE_USEMULTICAST; + +- dprintf(LOG_INFO, FNAME, "unexpected unicast message from %s", ++ debug_printf(LOG_INFO, FNAME, "unexpected unicast message from %s", + addr2str(from)); + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to add a status code"); ++ debug_printf(LOG_ERR, FNAME, "failed to add a status code"); + goto fail; + } + server6_send(DH6_REPLY, ifp, dh6, optinfo, from, +@@ -2126,7 +2126,7 @@ react_decline(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + stcode = DH6OPT_STCODE_SUCCESS; + if (dhcp6_add_listval(&roptinfo.stcode_list, + DHCP6_LISTVAL_STCODE, &stcode, NULL) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to add a status code"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to add a status code"); + goto fail; + } + +@@ -2164,12 +2164,12 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* the message may not include a Server Identifier option */ + if (optinfo->serverID.duid_len) { +- dprintf(LOG_INFO, FNAME, "server ID option found"); ++ debug_printf(LOG_INFO, FNAME, "server ID option found"); + return (-1); + } + /* the message must include a Client Identifier option */ + if (optinfo->clientID.duid_len == 0) { +- dprintf(LOG_INFO, FNAME, "no client ID option"); ++ debug_printf(LOG_INFO, FNAME, "no client ID option"); + return (-1); + } + +@@ -2177,24 +2177,24 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + /* copy client information back */ + if (duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + + /* process authentication */ + if (process_auth(dh6, len, client_conf, optinfo, &roptinfo)) { +- dprintf(LOG_INFO, FNAME, "failed to process authentication " ++ debug_printf(LOG_INFO, FNAME, "failed to process authentication " + "information for %s", + clientstr(client_conf, &optinfo->clientID)); + goto fail; +@@ -2203,7 +2203,7 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + if (client_conf == NULL && ifp->pool.name) { + if ((client_conf = create_dynamic_hostconf(&optinfo->clientID, + &ifp->pool)) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make host configuration"); + goto fail; + } +@@ -2211,7 +2211,7 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + TAILQ_INIT(&conflist); + /* make a local copy of the configured addresses */ + if (dhcp6_copy_list(&conflist, &client_conf->addr_list)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make local data"); + goto fail; + } +@@ -2221,13 +2221,13 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + * [RFC3315 18.2]. (IA-PD is just ignored [RFC3633 12.1]) + */ + if (TAILQ_EMPTY(&optinfo->iana_list)) { +- dprintf(LOG_INFO, FNAME, "no IA-NA option found"); ++ debug_printf(LOG_INFO, FNAME, "no IA-NA option found"); + goto fail; + } + for (iana = TAILQ_FIRST(&optinfo->iana_list); iana; + iana = TAILQ_NEXT(iana, link)) { + if (TAILQ_EMPTY(&iana->sublist)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "no IA-ADDR option found in IA-NA %d", + iana->val_ia.iaid); + goto fail; +@@ -2250,7 +2250,7 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + struct relayinfo *relayinfo; + + if (relayinfohead == NULL) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "no link-addr found"); + goto fail; + } +@@ -2264,7 +2264,7 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + } + + if (memcmp(linkaddr, confaddr, 8) != 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "%s does not seem to belong to %s's link", + in6addr2str(confaddr, 0), + in6addr2str(linkaddr, 0)); +@@ -2283,7 +2283,7 @@ react_confirm(ifp, pi, dh6, len, optinfo, from, fromlen, relayinfohead) + iana = TAILQ_NEXT(iana, link)) { + if (make_ia(iana, &conflist, &roptinfo.iana_list, + client_conf, 1) == 0) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "IA-NA configuration not found"); + goto fail; + } +@@ -2326,12 +2326,12 @@ react_informreq(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + * [RFC3315 Section 15] + */ + if (!TAILQ_EMPTY(&optinfo->iapd_list)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "information request contains an IA_PD option"); + return (-1); + } + if (!TAILQ_EMPTY(&optinfo->iana_list)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "information request contains an IA_NA option"); + return (-1); + } +@@ -2339,7 +2339,7 @@ react_informreq(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + /* if a server identifier is included, it must match ours. */ + if (optinfo->serverID.duid_len && + duidcmp(&optinfo->serverID, &server_duid)) { +- dprintf(LOG_INFO, FNAME, "server DUID mismatch"); ++ debug_printf(LOG_INFO, FNAME, "server DUID mismatch"); + return (-1); + } + +@@ -2350,20 +2350,20 @@ react_informreq(ifp, dh6, len, optinfo, from, fromlen, relayinfohead) + + /* server identifier option */ + if (duidcpy(&roptinfo.serverID, &server_duid)) { +- dprintf(LOG_ERR, FNAME, "failed to copy server ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy server ID"); + goto fail; + } + + /* copy client information back (if provided) */ + if (optinfo->clientID.duid_id && + duidcpy(&roptinfo.clientID, &optinfo->clientID)) { +- dprintf(LOG_ERR, FNAME, "failed to copy client ID"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy client ID"); + goto fail; + } + + /* set stateless information */ + if (set_statelessinfo(DH6_INFORM_REQ, &roptinfo)) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "failed to set other stateless information"); + goto fail; + } +@@ -2391,7 +2391,7 @@ update_ia(msgtype, iap, retlist, optinfo) + + /* get per-host configuration for the client, if any. */ + if ((client_conf = find_hostconf(&optinfo->clientID))) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "found a host configuration named %s", client_conf->name); + } + +@@ -2404,7 +2404,7 @@ update_ia(msgtype, iap, retlist, optinfo) + * Sections 18.2.3 and 18.2.4 of RFC3315, and the two sets + * of behavior are identical. + */ +- dprintf(LOG_INFO, FNAME, "no binding found for %s", ++ debug_printf(LOG_INFO, FNAME, "no binding found for %s", + duidstr(&optinfo->clientID)); + + switch (msgtype) { +@@ -2418,7 +2418,7 @@ update_ia(msgtype, iap, retlist, optinfo) + */ + if (make_ia_stcode(iap->type, iap->val_ia.iaid, + DH6OPT_STCODE_NOBINDING, retlist)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make an option list"); + return (-1); + } +@@ -2440,7 +2440,7 @@ update_ia(msgtype, iap, retlist, optinfo) + */ + return (-1); + default: /* XXX: should be a bug */ +- dprintf(LOG_ERR, FNAME, "impossible message type %s", ++ debug_printf(LOG_ERR, FNAME, "impossible message type %s", + dhcp6msgstr(msgtype)); + return (-1); + } +@@ -2468,7 +2468,7 @@ update_ia(msgtype, iap, retlist, optinfo) + blv = dhcp6_find_listval(&binding->val_list, + DHCP6_LISTVAL_PREFIX6, &prefix, 0); + if (blv == NULL) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "%s/%d is not found in %s", + in6addr2str(&prefix.addr, 0), + prefix.plen, bindingstr(binding)); +@@ -2484,7 +2484,7 @@ update_ia(msgtype, iap, retlist, optinfo) + if (dhcp6_add_listval(&ialist, + DHCP6_LISTVAL_PREFIX6, &prefix, NULL) + == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to copy binding info"); + dhcp6_clear_list(&ialist); + return (-1); +@@ -2498,7 +2498,7 @@ update_ia(msgtype, iap, retlist, optinfo) + blv = dhcp6_find_listval(&binding->val_list, + DHCP6_LISTVAL_STATEFULADDR6, &saddr, 0); + if (blv == NULL) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "%s is not found in %s", + in6addr2str(&saddr.addr, 0), + bindingstr(binding)); +@@ -2514,14 +2514,14 @@ update_ia(msgtype, iap, retlist, optinfo) + if (dhcp6_add_listval(&ialist, + DHCP6_LISTVAL_STATEFULADDR6, &saddr, NULL) + == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to copy binding info"); + dhcp6_clear_list(&ialist); + return (-1); + } + break; + default: +- dprintf(LOG_ERR, FNAME, "unsupported IA type"); ++ debug_printf(LOG_ERR, FNAME, "unsupported IA type"); + return (-1); /* XXX */ + } + } +@@ -2560,7 +2560,7 @@ release_binding_ia(iap, retlist, optinfo) + */ + if (make_ia_stcode(iap->type, iap->val_ia.iaid, + DH6OPT_STCODE_NOBINDING, retlist)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make an option list"); + return (-1); + } +@@ -2582,7 +2582,7 @@ release_binding_ia(iap, retlist, optinfo) + if ((lvia = find_binding_ia(lv, binding)) != NULL) { + switch (binding->iatype) { + case DHCP6_LISTVAL_IAPD: +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "bound prefix %s/%d " + "has been released", + in6addr2str(&lvia->val_prefix6.addr, +@@ -2591,7 +2591,7 @@ release_binding_ia(iap, retlist, optinfo) + break; + case DHCP6_LISTVAL_IANA: + release_address(&lvia->val_prefix6.addr); +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "bound address %s " + "has been released", + in6addr2str(&lvia->val_prefix6.addr, +@@ -2635,7 +2635,7 @@ decline_binding_ia(iap, retlist, optinfo) + */ + if (make_ia_stcode(iap->type, iap->val_ia.iaid, + DH6OPT_STCODE_NOBINDING, retlist)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make an option list"); + return (-1); + } +@@ -2657,13 +2657,13 @@ decline_binding_ia(iap, retlist, optinfo) + } + + if ((lvia = find_binding_ia(lv, binding)) == NULL) { +- dprintf(LOG_DEBUG, FNAME, "no binding found " ++ debug_printf(LOG_DEBUG, FNAME, "no binding found " + "for address %s", + in6addr2str(&lv->val_statefuladdr6.addr, 0)); + continue; + } + +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "bound address %s has been marked as declined", + in6addr2str(&lvia->val_statefuladdr6.addr, 0)); + decline_address(&lvia->val_statefuladdr6.addr); +@@ -2688,7 +2688,7 @@ server6_signal(sig) + int sig; + { + +- dprintf(LOG_INFO, FNAME, "received a signal (%d)", sig); ++ debug_printf(LOG_INFO, FNAME, "received a signal (%d)", sig); + + switch (sig) { + case SIGTERM: +@@ -2717,7 +2717,7 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + struct relayinfo *relayinfo; + + if (sizeof(struct dhcp6) > sizeof(replybuf)) { +- dprintf(LOG_ERR, FNAME, "buffer size assumption failed"); ++ debug_printf(LOG_ERR, FNAME, "buffer size assumption failed"); + return (-1); + } + +@@ -2730,7 +2730,7 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + /* set options in the reply message */ + if ((optlen = dhcp6_set_options(type, (struct dhcp6opt *)(dh6 + 1), + (struct dhcp6opt *)(replybuf + sizeof(replybuf)), roptinfo)) < 0) { +- dprintf(LOG_INFO, FNAME, "failed to construct reply options"); ++ debug_printf(LOG_INFO, FNAME, "failed to construct reply options"); + return (-1); + } + len += optlen; +@@ -2740,7 +2740,7 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + case DHCP6_AUTHPROTO_DELAYED: + if (client_conf == NULL || client_conf->delayedkey == NULL) { + /* This case should have been caught earlier */ +- dprintf(LOG_ERR, FNAME, "authentication required " ++ debug_printf(LOG_ERR, FNAME, "authentication required " + "but not key provided"); + break; + } +@@ -2748,7 +2748,7 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + roptinfo->authalgorithm, + roptinfo->delayedauth_offset + sizeof(*dh6), + client_conf->delayedkey)) { +- dprintf(LOG_WARNING, FNAME, "failed to calculate MAC"); ++ debug_printf(LOG_WARNING, FNAME, "failed to calculate MAC"); + return (-1); + } + break; +@@ -2792,7 +2792,7 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + (struct dhcp6opt *)(dh6relay + 1), + (struct dhcp6opt *)(replybuf + sizeof(replybuf)), + &relayopt)) < 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "failed to construct relay message"); + dhcp6_clear_options(&relayopt); + return (-1); +@@ -2808,12 +2808,12 @@ server6_send(type, ifp, origmsg, optinfo, from, fromlen, + dst.sin6_scope_id = ((struct sockaddr_in6 *)from)->sin6_scope_id; + if (transmit_sa(outsock, (struct sockaddr *)&dst, + replybuf, len) != 0) { +- dprintf(LOG_ERR, FNAME, "transmit %s to %s failed", ++ debug_printf(LOG_ERR, FNAME, "transmit %s to %s failed", + dhcp6msgstr(type), addr2str((struct sockaddr *)&dst)); + return (-1); + } + +- dprintf(LOG_DEBUG, FNAME, "transmit %s to %s", ++ debug_printf(LOG_DEBUG, FNAME, "transmit %s to %s", + dhcp6msgstr(type), addr2str((struct sockaddr *)&dst)); + + return (0); +@@ -2835,13 +2835,13 @@ make_ia_stcode(iatype, iaid, stcode, retlist) + TAILQ_INIT(&stcode_list); + if (dhcp6_add_listval(&stcode_list, DHCP6_LISTVAL_STCODE, + &stcode, NULL) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to make an option list"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to make an option list"); + return (-1); + } + + if (dhcp6_add_listval(retlist, iatype, + &ia_empty, &stcode_list) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to make an option list"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to make an option list"); + dhcp6_clear_list(&stcode_list); + return (-1); + } +@@ -2872,7 +2872,7 @@ make_ia(spec, conflist, retlist, client_conf, do_binding) + struct dhcp6_list *blist = &binding->val_list; + struct dhcp6_listval *bia, *v; + +- dprintf(LOG_DEBUG, FNAME, "we have a binding already: %s", ++ debug_printf(LOG_DEBUG, FNAME, "we have a binding already: %s", + bindingstr(binding)); + + update_binding(binding); +@@ -2883,7 +2883,7 @@ make_ia(spec, conflist, retlist, client_conf, do_binding) + calc_ia_timo(&ia, blist, client_conf); + if (dhcp6_add_listval(retlist, spec->type, &ia, blist) + == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to copy binding info"); + return (0); + } +@@ -2959,7 +2959,7 @@ make_ia(spec, conflist, retlist, client_conf, do_binding) + if (do_binding) { + if (add_binding(&client_conf->duid, DHCP6_BINDING_IA, + spec->type, spec->val_ia.iaid, &ialist) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to make a binding"); + found = 0; + } +@@ -3000,7 +3000,7 @@ make_match_ia(spec, conflist, retlist) + match = 0; + break; + default: +- dprintf(LOG_ERR, FNAME, "unsupported IA type"); ++ debug_printf(LOG_ERR, FNAME, "unsupported IA type"); + return (0); /* XXX */ + } + } +@@ -3032,10 +3032,10 @@ make_iana_from_pool(poolspec, spec, retlist) + struct pool_conf *pool; + int found = 0; + +- dprintf(LOG_DEBUG, FNAME, "called"); ++ debug_printf(LOG_DEBUG, FNAME, "called"); + + if ((pool = find_pool(poolspec->name)) == NULL) { +- dprintf(LOG_ERR, FNAME, "pool '%s' not found", poolspec->name); ++ debug_printf(LOG_ERR, FNAME, "pool '%s' not found", poolspec->name); + return (0); + } + +@@ -3060,7 +3060,7 @@ make_iana_from_pool(poolspec, spec, retlist) + } + } + +- dprintf(LOG_DEBUG, FNAME, "returns (found=%d)", found); ++ debug_printf(LOG_DEBUG, FNAME, "returns (found=%d)", found); + + return (found); + } +@@ -3078,7 +3078,7 @@ calc_ia_timo(ia, ialist, client_conf) + iatype = TAILQ_FIRST(ialist)->type; + for (iav = TAILQ_FIRST(ialist); iav; iav = TAILQ_NEXT(iav, link)) { + if (iav->type != iatype) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "assumption failure: IA list is not consistent"); + exit (1); /* XXX */ + } +@@ -3144,7 +3144,7 @@ update_binding_duration(binding) + lifetime = iav->val_statefuladdr6.vltime; + break; + default: +- dprintf(LOG_ERR, FNAME, "unsupported IA type"); ++ debug_printf(LOG_ERR, FNAME, "unsupported IA type"); + return; /* XXX */ + } + +@@ -3162,7 +3162,7 @@ update_binding_duration(binding) + break; + default: + /* should be internal error. */ +- dprintf(LOG_ERR, FNAME, "unknown binding type (%d)", ++ debug_printf(LOG_ERR, FNAME, "unknown binding type (%d)", + binding->type); + return; + } +@@ -3182,13 +3182,13 @@ add_binding(clientid, btype, iatype, iaid, val0) + u_int32_t duration = DHCP6_DURATION_INFINITE; + + if ((binding = malloc(sizeof(*binding))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to allocate memory"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to allocate memory"); + return (NULL); + } + memset(binding, 0, sizeof(*binding)); + binding->type = btype; + if (duidcpy(&binding->clientid, clientid)) { +- dprintf(LOG_NOTICE, FNAME, "failed to copy DUID"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to copy DUID"); + goto fail; + } + binding->iatype = iatype; +@@ -3200,7 +3200,7 @@ add_binding(clientid, btype, iatype, iaid, val0) + TAILQ_INIT(&binding->val_list); + if (dhcp6_copy_list(&binding->val_list, + (struct dhcp6_list *)val0)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to copy binding data"); + goto fail; + } +@@ -3213,13 +3213,13 @@ add_binding(clientid, btype, iatype, iaid, val0) + lv_next = TAILQ_NEXT(lv, link); + + if (lv->type != DHCP6_LISTVAL_STATEFULADDR6) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "unexpected binding value type(%d)", lv->type); + continue; + } + + if (!lease_address(&lv->val_statefuladdr6.addr)) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "cannot lease address %s", + in6addr2str(&lv->val_statefuladdr6.addr, 0)); + TAILQ_REMOVE(ia_list, lv, link); +@@ -3227,13 +3227,13 @@ add_binding(clientid, btype, iatype, iaid, val0) + } + } + if (TAILQ_EMPTY(ia_list)) { +- dprintf(LOG_NOTICE, FNAME, "cannot lease any address"); ++ debug_printf(LOG_NOTICE, FNAME, "cannot lease any address"); + goto fail; + } + } + break; + default: +- dprintf(LOG_ERR, FNAME, "unexpected binding type(%d)", btype); ++ debug_printf(LOG_ERR, FNAME, "unexpected binding type(%d)", btype); + goto fail; + } + +@@ -3245,7 +3245,7 @@ add_binding(clientid, btype, iatype, iaid, val0) + + binding->timer = dhcp6_add_timer(binding_timo, binding); + if (binding->timer == NULL) { +- dprintf(LOG_NOTICE, FNAME, "failed to add timer"); ++ debug_printf(LOG_NOTICE, FNAME, "failed to add timer"); + goto fail; + } + timo.tv_sec = (long)duration; +@@ -3255,7 +3255,7 @@ add_binding(clientid, btype, iatype, iaid, val0) + + TAILQ_INSERT_TAIL(&dhcp6_binding_head, binding, link); + +- dprintf(LOG_DEBUG, FNAME, "add a new binding %s", bindingstr(binding)); ++ debug_printf(LOG_DEBUG, FNAME, "add a new binding %s", bindingstr(binding)); + + return (binding); + +@@ -3295,7 +3295,7 @@ update_binding(binding) + { + struct timeval timo; + +- dprintf(LOG_DEBUG, FNAME, "update binding %s for %s", ++ debug_printf(LOG_DEBUG, FNAME, "update binding %s for %s", + bindingstr(binding), duidstr(&binding->clientid)); + + /* update timestamp and calculate new duration */ +@@ -3316,7 +3316,7 @@ static void + remove_binding(binding) + struct dhcp6_binding *binding; + { +- dprintf(LOG_DEBUG, FNAME, "remove a binding %s", ++ debug_printf(LOG_DEBUG, FNAME, "remove a binding %s", + bindingstr(binding)); + + if (binding->timer) +@@ -3343,7 +3343,7 @@ free_binding(binding) + + for (lv = TAILQ_FIRST(ia_list); lv; lv = TAILQ_NEXT(lv, link)) { + if (lv->type != DHCP6_LISTVAL_STATEFULADDR6) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "unexpected binding value type(%d)", lv->type); + continue; + } +@@ -3353,7 +3353,7 @@ free_binding(binding) + dhcp6_clear_list(&binding->val_list); + break; + default: +- dprintf(LOG_ERR, FNAME, "unknown binding type %d", ++ debug_printf(LOG_ERR, FNAME, "unknown binding type %d", + binding->type); + break; + } +@@ -3386,7 +3386,7 @@ binding_timo(arg) + lifetime = iav->val_prefix6.vltime; + break; + default: +- dprintf(LOG_ERR, FNAME, "internal error: " ++ debug_printf(LOG_ERR, FNAME, "internal error: " + "unknown binding type (%d)", + binding->iatype); + return (NULL); /* XXX */ +@@ -3394,7 +3394,7 @@ binding_timo(arg) + + if (lifetime != DHCP6_DURATION_INFINITE && + lifetime <= past) { +- dprintf(LOG_DEBUG, FNAME, "bound prefix %s/%d" ++ debug_printf(LOG_DEBUG, FNAME, "bound prefix %s/%d" + " in %s has expired", + in6addr2str(&iav->val_prefix6.addr, 0), + iav->val_prefix6.plen, +@@ -3414,7 +3414,7 @@ binding_timo(arg) + + break; + default: +- dprintf(LOG_ERR, FNAME, "unknown binding type %d", ++ debug_printf(LOG_ERR, FNAME, "unknown binding type %d", + binding->type); + return (NULL); /* XXX */ + } +@@ -3444,7 +3444,7 @@ find_binding_ia(key, binding) + case DHCP6_BINDING_IA: + return (dhcp6_find_listval(ia_list, key->type, &key->uv, 0)); + default: +- dprintf(LOG_ERR, FNAME, "unknown binding type %d", ++ debug_printf(LOG_ERR, FNAME, "unknown binding type %d", + binding->type); + return (NULL); /* XXX */ + } +@@ -3474,7 +3474,7 @@ bindingstr(binding) + (u_long)binding->duration); + break; + default: +- dprintf(LOG_ERR, FNAME, "unexpected binding type(%d)", ++ debug_printf(LOG_ERR, FNAME, "unexpected binding type(%d)", + binding->type); + return ("???"); + } +@@ -3508,7 +3508,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + return (0); + case DHCP6_AUTHPROTO_DELAYED: + if (optinfo->authalgorithm != DHCP6_AUTHALG_HMACMD5) { +- dprintf(LOG_INFO, FNAME, "unknown authentication " ++ debug_printf(LOG_INFO, FNAME, "unknown authentication " + "algorithm (%d) required by %s", + optinfo->authalgorithm, + clientstr(client_conf, &optinfo->clientID)); +@@ -3516,7 +3516,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + } + + if (optinfo->authrdm != DHCP6_AUTHRDM_MONOCOUNTER) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "unknown RDM (%d) required by %s", + optinfo->authrdm, + clientstr(client_conf, &optinfo->clientID)); +@@ -3525,13 +3525,13 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + + /* see if we have a key for the client */ + if (client_conf == NULL || client_conf->delayedkey == NULL) { +- dprintf(LOG_INFO, FNAME, "client %s wanted " ++ debug_printf(LOG_INFO, FNAME, "client %s wanted " + "authentication, but no key found", + clientstr(client_conf, &optinfo->clientID)); + break; + } + key = client_conf->delayedkey; +- dprintf(LOG_DEBUG, FNAME, "found key %s for client %s", ++ debug_printf(LOG_DEBUG, FNAME, "found key %s for client %s", + key->name, clientstr(client_conf, &optinfo->clientID)); + + if (msgtype == DH6_SOLICIT) { +@@ -3540,7 +3540,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + * A solicit message should not contain + * authentication information. + */ +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "authentication information " + "provided in solicit from %s", + clientstr(client_conf, +@@ -3550,7 +3550,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + } else { + /* replay protection */ + if (!client_conf->saw_previous_rd) { +- dprintf(LOG_WARNING, FNAME, ++ debug_printf(LOG_WARNING, FNAME, + "previous RD value for %s is unknown " + "(accept it)", clientstr(client_conf, + &optinfo->clientID)); +@@ -3558,7 +3558,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + if (dhcp6_auth_replaycheck(optinfo->authrdm, + client_conf->previous_rd, + optinfo->authrd)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "possible replay attack detected " + "for client %s", + clientstr(client_conf, +@@ -3568,7 +3568,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + } + + if ((optinfo->authflags & DHCP6OPT_AUTHFLAG_NOINFO)) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "client %s did not provide authentication " + "information in %s", + clientstr(client_conf, &optinfo->clientID), +@@ -3588,7 +3588,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + optinfo->delayedauth_realmlen != key->realmlen || + memcmp(optinfo->delayedauth_realmval, key->realm, + key->realmlen) != 0) { +- dprintf(LOG_INFO, FNAME, "authentication key " ++ debug_printf(LOG_INFO, FNAME, "authentication key " + "mismatch with client %s", + clientstr(client_conf, + &optinfo->clientID)); +@@ -3597,7 +3597,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + + /* check for the key lifetime */ + if (dhcp6_validate_key(key)) { +- dprintf(LOG_INFO, FNAME, "key %s has expired", ++ debug_printf(LOG_INFO, FNAME, "key %s has expired", + key->name); + break; + } +@@ -3607,12 +3607,12 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + optinfo->authproto, optinfo->authalgorithm, + optinfo->delayedauth_offset + sizeof(*dh6), key) + == 0) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "message authentication validated for " + "client %s", clientstr(client_conf, + &optinfo->clientID)); + } else { +- dprintf(LOG_INFO, FNAME, "invalid message " ++ debug_printf(LOG_INFO, FNAME, "invalid message " + "authentication"); + break; + } +@@ -3624,7 +3624,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + + if (get_rdvalue(roptinfo->authrdm, &roptinfo->authrd, + sizeof(roptinfo->authrd))) { +- dprintf(LOG_ERR, FNAME, "failed to get a replay " ++ debug_printf(LOG_ERR, FNAME, "failed to get a replay " + "detection value for %s", + clientstr(client_conf, &optinfo->clientID)); + break; /* XXX: try to recover? */ +@@ -3635,7 +3635,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + roptinfo->delayedauth_realmval = + malloc(roptinfo->delayedauth_realmlen); + if (roptinfo->delayedauth_realmval == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to allocate memory " ++ debug_printf(LOG_ERR, FNAME, "failed to allocate memory " + "for authentication realm for %s", + clientstr(client_conf, &optinfo->clientID)); + break; +@@ -3647,7 +3647,7 @@ process_auth(dh6, len, client_conf, optinfo, roptinfo) + + break; + default: +- dprintf(LOG_INFO, FNAME, "client %s wanted authentication " ++ debug_printf(LOG_INFO, FNAME, "client %s wanted authentication " + "with unsupported protocol (%d)", + clientstr(client_conf, &optinfo->clientID), + optinfo->authproto); +diff --git a/if.c b/if.c +index 61a7fd6..c690671 100644 +--- a/if.c ++++ b/if.c +@@ -60,12 +60,12 @@ ifinit(ifname) + struct dhcp6_if *ifp; + + if ((ifp = find_ifconfbyname(ifname)) != NULL) { +- dprintf(LOG_NOTICE, FNAME, "duplicated interface: %s", ifname); ++ debug_printf(LOG_NOTICE, FNAME, "duplicated interface: %s", ifname); + return (NULL); + } + + if ((ifp = malloc(sizeof(*ifp))) == NULL) { +- dprintf(LOG_ERR, FNAME, "malloc failed"); ++ debug_printf(LOG_ERR, FNAME, "malloc failed"); + goto fail; + } + memset(ifp, 0, sizeof(*ifp)); +@@ -73,7 +73,7 @@ ifinit(ifname) + TAILQ_INIT(&ifp->event_list); + + if ((ifp->ifname = strdup(ifname)) == NULL) { +- dprintf(LOG_ERR, FNAME, "failed to copy ifname"); ++ debug_printf(LOG_ERR, FNAME, "failed to copy ifname"); + goto fail; + } + +@@ -92,7 +92,7 @@ ifinit(ifname) + struct sockaddr_in6 *sin6; + + if (getifaddrs(&ifap) < 0) { +- dprintf(LOG_ERR, FNAME, "getifaddrs failed: %s", ++ debug_printf(LOG_ERR, FNAME, "getifaddrs failed: %s", + strerror(errno)); + goto fail; + } +@@ -134,14 +134,14 @@ ifreset(ifp) + u_int32_t linkid; + + if ((ifid = if_nametoindex(ifp->ifname)) == 0) { +- dprintf(LOG_ERR, FNAME, "invalid interface(%s): %s", ++ debug_printf(LOG_ERR, FNAME, "invalid interface(%s): %s", + ifp->ifname, strerror(errno)); + return (-1); + } + + #ifdef HAVE_SCOPELIB + if (inet_zoneid(AF_INET6, 2, ifname, &linkid)) { +- dprintf(LOG_ERR, FNAME, "failed to get link ID for %s", ++ debug_printf(LOG_ERR, FNAME, "failed to get link ID for %s", + ifname); + return (-1); + } +diff --git a/lease.c b/lease.c +index d46ddfd..5cb7325 100644 +--- a/lease.c ++++ b/lease.c +@@ -93,7 +93,7 @@ static struct hash_entry * hash_table_find __P((struct hash_table *, void *)); + int + lease_init(void) + { +- dprintf(LOG_DEBUG, FNAME, "called"); ++ debug_printf(LOG_DEBUG, FNAME, "called"); + + if (hash_table_init(&dhcp6_lease_table, DHCP6_LEASE_TABLE_SIZE, + in6_addr_hash, in6_addr_match) != 0) { +@@ -116,10 +116,10 @@ lease_address(addr) + if (!addr) + return (FALSE); + +- dprintf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); ++ debug_printf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); + + if (hash_table_find(&dhcp6_lease_table, addr)) { +- dprintf(LOG_WARNING, FNAME, "already leased: %s", ++ debug_printf(LOG_WARNING, FNAME, "already leased: %s", + in6addr2str(addr, 0)); + return (FALSE); + } +@@ -138,10 +138,10 @@ release_address(addr) + if (!addr) + return; + +- dprintf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); ++ debug_printf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); + + if (hash_table_remove(&dhcp6_lease_table, addr) != 0) { +- dprintf(LOG_WARNING, FNAME, "not found: %s", in6addr2str(addr, 0)); ++ debug_printf(LOG_WARNING, FNAME, "not found: %s", in6addr2str(addr, 0)); + } + } + +@@ -154,11 +154,11 @@ decline_address(addr) + if (!addr) + return; + +- dprintf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); ++ debug_printf(LOG_DEBUG, FNAME, "addr=%s", in6addr2str(addr, 0)); + + entry = hash_table_find(&dhcp6_lease_table, addr); + if (entry == NULL) { +- dprintf(LOG_WARNING, FNAME, "not found: %s", ++ debug_printf(LOG_WARNING, FNAME, "not found: %s", + in6addr2str(addr, 0)); + return; + } +diff --git a/prefixconf.c b/prefixconf.c +index ace6ade..9450a3f 100644 +--- a/prefixconf.c ++++ b/prefixconf.c +@@ -141,7 +141,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + if (pinfo->vltime != DHCP6_DURATION_INFINITE && + (pinfo->pltime == DHCP6_DURATION_INFINITE || + pinfo->pltime > pinfo->vltime)) { +- dprintf(LOG_INFO, FNAME, "invalid prefix %s/%d: " ++ debug_printf(LOG_INFO, FNAME, "invalid prefix %s/%d: " + "pltime (%lu) is larger than vltime (%lu)", + in6addr2str(&pinfo->addr, 0), pinfo->plen, + pinfo->pltime, pinfo->vltime); +@@ -150,7 +150,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + + if (iac_pd == NULL) { + if ((iac_pd = malloc(sizeof(*iac_pd))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "memory allocation failed"); ++ debug_printf(LOG_NOTICE, FNAME, "memory allocation failed"); + return (-1); + } + memset(iac_pd, 0, sizeof(*iac_pd)); +@@ -172,7 +172,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + /* search for the given prefix, and make a new one if it fails */ + if ((sp = find_siteprefix(&iac_pd->siteprefix_head, pinfo, 1)) == NULL) { + if ((sp = malloc(sizeof(*sp))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, "memory allocation failed"); ++ debug_printf(LOG_NOTICE, FNAME, "memory allocation failed"); + return (-1); + } + memset(sp, 0, sizeof(*sp)); +@@ -192,7 +192,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + /* update the prefix according to pinfo */ + sp->prefix.pltime = pinfo->pltime; + sp->prefix.vltime = pinfo->vltime; +- dprintf(LOG_DEBUG, FNAME, "%s a prefix %s/%d pltime=%lu, vltime=%lu", ++ debug_printf(LOG_DEBUG, FNAME, "%s a prefix %s/%d pltime=%lu, vltime=%lu", + spcreate ? "create" : "update", + in6addr2str(&pinfo->addr, 0), pinfo->plen, + pinfo->pltime, pinfo->vltime); +@@ -209,7 +209,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + * [RFC3633 Section 12.1] + */ + if (strcmp(pif->ifname, dhcpifp->ifname) == 0) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "skip %s as a prefix interface", + dhcpifp->ifname); + continue; +@@ -235,7 +235,7 @@ update_prefix(ia, pinfo, pifc, dhcpifp, ctlp, callback) + if (sp->timer == NULL) { + sp->timer = dhcp6_add_timer(siteprefix_timo, sp); + if (sp->timer == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to add prefix timer"); + remove_siteprefix(sp); /* XXX */ + return (-1); +@@ -276,7 +276,7 @@ remove_siteprefix(sp) + { + struct dhcp6_ifprefix *ip; + +- dprintf(LOG_DEBUG, FNAME, "remove a site prefix %s/%d", ++ debug_printf(LOG_DEBUG, FNAME, "remove a site prefix %s/%d", + in6addr2str(&sp->prefix.addr, 0), sp->prefix.plen); + + if (sp->timer) +@@ -390,7 +390,7 @@ renew_data_free(evd) + struct dhcp6_list *ial; + + if (evd->type != DHCP6_EVDATA_IAPD) { +- dprintf(LOG_ERR, FNAME, "assumption failure"); ++ debug_printf(LOG_ERR, FNAME, "assumption failure"); + exit(1); + } + +@@ -409,7 +409,7 @@ siteprefix_timo(arg) + struct ia *ia; + void (*callback)__P((struct ia *)); + +- dprintf(LOG_DEBUG, FNAME, "prefix timeout for %s/%d", ++ debug_printf(LOG_DEBUG, FNAME, "prefix timeout for %s/%d", + in6addr2str(&sp->prefix.addr, 0), sp->prefix.plen); + + ia = sp->ctl->iacpd_ia; +@@ -438,7 +438,7 @@ add_ifprefix(siteprefix, prefix, pconf) + int b, i; + + if ((ifpfx = malloc(sizeof(*ifpfx))) == NULL) { +- dprintf(LOG_NOTICE, FNAME, ++ debug_printf(LOG_NOTICE, FNAME, + "failed to allocate memory for ifprefix"); + return (-1); + } +@@ -456,13 +456,13 @@ add_ifprefix(siteprefix, prefix, pconf) + * XXX: our current implementation assumes ifid len is a multiple of 8 + */ + if ((pconf->ifid_len % 8) != 0) { +- dprintf(LOG_ERR, FNAME, ++ debug_printf(LOG_ERR, FNAME, + "assumption failure on the length of interface ID"); + goto bad; + } + if (ifpfx->plen + pconf->ifid_len < 0 || + ifpfx->plen + pconf->ifid_len > 128) { +- dprintf(LOG_INFO, FNAME, ++ debug_printf(LOG_INFO, FNAME, + "invalid prefix length %d + %d + %d", + prefix->plen, pconf->sla_len, pconf->ifid_len); + goto bad; +diff --git a/timer.c b/timer.c +index c74aa1f..c1666b4 100644 +--- a/timer.c ++++ b/timer.c +@@ -71,14 +71,14 @@ dhcp6_add_timer(timeout, timeodata) + struct dhcp6_timer *newtimer; + + if ((newtimer = malloc(sizeof(*newtimer))) == NULL) { +- dprintf(LOG_ERR, FNAME, "can't allocate memory"); ++ debug_printf(LOG_ERR, FNAME, "can't allocate memory"); + return (NULL); + } + + memset(newtimer, 0, sizeof(*newtimer)); + + if (timeout == NULL) { +- dprintf(LOG_ERR, FNAME, "timeout function unspecified"); ++ debug_printf(LOG_ERR, FNAME, "timeout function unspecified"); + exit(1); + } + newtimer->expire = timeout; +@@ -165,7 +165,7 @@ dhcp6_timer_rest(timer) + + gettimeofday(&now, NULL); + if (TIMEVAL_LEQ(timer->tm, now)) { +- dprintf(LOG_DEBUG, FNAME, ++ debug_printf(LOG_DEBUG, FNAME, + "a timer must be expired, but not yet"); + returnval.tv_sec = returnval.tv_usec = 0; + } else |