diff options
Diffstat (limited to '')
| -rw-r--r-- | log.c | 910 |
1 files changed, 910 insertions, 0 deletions
@@ -0,0 +1,910 @@ +/* + * Logging and utility functions. + * + * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org> + * Copyright (C) 2000-2001 Martin Pool <mbp@samba.org> + * Copyright (C) 2003-2022 Wayne Davison + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, visit the http://fsf.org website. + */ + +#include "rsync.h" +#include "itypes.h" +#include "inums.h" + +extern int dry_run; +extern int am_daemon; +extern int am_server; +extern int am_sender; +extern int am_generator; +extern int local_server; +extern int quiet; +extern int module_id; +extern int allow_8bit_chars; +extern int protocol_version; +extern int always_checksum; +extern int preserve_mtimes; +extern int msgs2stderr; +extern int stdout_format_has_i; +extern int stdout_format_has_o_or_i; +extern int logfile_format_has_i; +extern int logfile_format_has_o_or_i; +extern int receiver_symlink_times; +extern int64 total_data_written; +extern int64 total_data_read; +extern mode_t orig_umask; +extern char *auth_user; +extern char *stdout_format; +extern char *logfile_format; +extern char *logfile_name; +#ifdef ICONV_CONST +extern iconv_t ic_chck; +#endif +#ifdef ICONV_OPTION +extern iconv_t ic_recv; +#endif +extern char curr_dir[MAXPATHLEN]; +extern char *full_module_path; +extern unsigned int module_dirlen; +extern char sender_file_sum[MAX_DIGEST_LEN]; +extern const char undetermined_hostname[]; + +extern struct name_num_item *xfer_sum_nni, *file_sum_nni; + +static int log_initialised; +static int logfile_was_closed; +static FILE *logfile_fp; +struct stats stats; + +int got_xfer_error = 0; +int output_needs_newline = 0; +int send_msgs_to_gen = 0; + +static int64 initial_data_written; +static int64 initial_data_read; + +struct { + int code; + char const *name; +} const rerr_names[] = { + { RERR_SYNTAX , "syntax or usage error" }, + { RERR_PROTOCOL , "protocol incompatibility" }, + { RERR_FILESELECT , "errors selecting input/output files, dirs" }, + { RERR_UNSUPPORTED, "requested action not supported" }, + { RERR_STARTCLIENT, "error starting client-server protocol" }, + { RERR_SOCKETIO , "error in socket IO" }, + { RERR_FILEIO , "error in file IO" }, + { RERR_STREAMIO , "error in rsync protocol data stream" }, + { RERR_MESSAGEIO , "errors with program diagnostics" }, + { RERR_IPC , "error in IPC code" }, + { RERR_CRASHED , "sibling process crashed" }, + { RERR_TERMINATED , "sibling process terminated abnormally" }, + { RERR_SIGNAL1 , "received SIGUSR1" }, + { RERR_SIGNAL , "received SIGINT, SIGTERM, or SIGHUP" }, + { RERR_WAITCHILD , "waitpid() failed" }, + { RERR_MALLOC , "error allocating core memory buffers" }, + { RERR_PARTIAL , "some files/attrs were not transferred (see previous errors)" }, + { RERR_VANISHED , "some files vanished before they could be transferred" }, + { RERR_DEL_LIMIT , "the --max-delete limit stopped deletions" }, + { RERR_TIMEOUT , "timeout in data send/receive" }, + { RERR_CONTIMEOUT , "timeout waiting for daemon connection" }, + { RERR_CMD_FAILED , "remote shell failed" }, + { RERR_CMD_KILLED , "remote shell killed" }, + { RERR_CMD_RUN , "remote command could not be run" }, + { RERR_CMD_NOTFOUND,"remote command not found" }, + { 0, NULL } +}; + +/* + * Map from rsync error code to name, or return NULL. + */ +static char const *rerr_name(int code) +{ + int i; + for (i = 0; rerr_names[i].name; i++) { + if (rerr_names[i].code == code) + return rerr_names[i].name; + } + return NULL; +} + +static void logit(int priority, const char *buf) +{ + if (logfile_was_closed) + logfile_reopen(); + if (logfile_fp) { + fprintf(logfile_fp, "%s [%d] %s", timestring(time(NULL)), (int)getpid(), buf); + fflush(logfile_fp); + } else { + syslog(priority, "%s", buf); + } +} + +static void syslog_init() +{ + int options = LOG_PID; + +#ifdef LOG_NDELAY + options |= LOG_NDELAY; +#endif + +#ifdef LOG_DAEMON + openlog(lp_syslog_tag(module_id), options, lp_syslog_facility(module_id)); +#else + openlog(lp_syslog_tag(module_id), options); +#endif + +#ifndef LOG_NDELAY + logit(LOG_INFO, "rsyncd started\n"); +#endif +} + +static void logfile_open(void) +{ + mode_t old_umask = umask(022 | orig_umask); + logfile_fp = fopen(logfile_name, "a"); + umask(old_umask); + if (!logfile_fp) { + int fopen_errno = errno; + /* Rsync falls back to using syslog on failure. */ + syslog_init(); + rsyserr(FERROR, fopen_errno, + "failed to open log-file %s", logfile_name); + rprintf(FINFO, "Ignoring \"log file\" setting.\n"); + logfile_name = ""; + } +} + +void log_init(int restart) +{ + if (log_initialised) { + if (!restart) /* Note: a restart only happens with am_daemon */ + return; + assert(logfile_name); /* all am_daemon procs got at least an empty string */ + if (strcmp(logfile_name, lp_log_file(module_id)) != 0) { + if (logfile_fp) { + fclose(logfile_fp); + logfile_fp = NULL; + } else + closelog(); + logfile_name = NULL; + } else if (*logfile_name) + return; /* unchanged, non-empty "log file" names */ + else if (lp_syslog_facility(-1) != lp_syslog_facility(module_id) + || strcmp(lp_syslog_tag(-1), lp_syslog_tag(module_id)) != 0) + closelog(); + else + return; /* unchanged syslog settings */ + } else + log_initialised = 1; + + /* This looks pointless, but it is needed in order for the + * C library on some systems to fetch the timezone info + * before the chroot. */ + timestring(time(NULL)); + + /* Optionally use a log file instead of syslog. (Non-daemon + * rsyncs will have already set logfile_name, as needed.) */ + if (am_daemon && !logfile_name) + logfile_name = lp_log_file(module_id); + if (logfile_name && *logfile_name) + logfile_open(); + else + syslog_init(); +} + +/* Note that this close & reopen idiom intentionally ignores syslog logging. */ +void logfile_close(void) +{ + if (logfile_fp) { + logfile_was_closed = 1; + fclose(logfile_fp); + logfile_fp = NULL; + } +} + +void logfile_reopen(void) +{ + if (logfile_was_closed) { + logfile_was_closed = 0; + logfile_open(); + } +} + +static void filtered_fwrite(FILE *f, const char *in_buf, int in_len, int use_isprint, char end_char) +{ + char outbuf[1024], *ob = outbuf; + const char *end = in_buf + in_len; + while (in_buf < end) { + if (ob - outbuf >= (int)sizeof outbuf - 10) { + if (fwrite(outbuf, ob - outbuf, 1, f) != 1) + exit_cleanup(RERR_MESSAGEIO); + ob = outbuf; + } + if ((in_buf < end - 4 && *in_buf == '\\' && in_buf[1] == '#' + && isDigit(in_buf + 2) && isDigit(in_buf + 3) && isDigit(in_buf + 4)) + || (*in_buf != '\t' && ((use_isprint && !isPrint(in_buf)) || *(uchar*)in_buf < ' '))) + ob += snprintf(ob, 6, "\\#%03o", *(uchar*)in_buf++); + else + *ob++ = *in_buf++; + } + if (end_char) /* The "- 10" above means that there is always room for one more char here. */ + *ob++ = end_char; + if (ob != outbuf && fwrite(outbuf, ob - outbuf, 1, f) != 1) + exit_cleanup(RERR_MESSAGEIO); +} + +/* this is the underlying (unformatted) rsync debugging function. Call + * it with FINFO, FERROR_*, FWARNING, FLOG, or FCLIENT. Note: recursion + * can happen with certain fatal conditions. */ +void rwrite(enum logcode code, const char *buf, int len, int is_utf8) +{ + char trailing_CR_or_NL; + FILE *f = msgs2stderr == 1 ? stderr : stdout; +#ifdef ICONV_OPTION + iconv_t ic = is_utf8 && ic_recv != (iconv_t)-1 ? ic_recv : ic_chck; +#else +#ifdef ICONV_CONST + iconv_t ic = ic_chck; +#endif +#endif + + if (len < 0) + exit_cleanup(RERR_MESSAGEIO); + + if (msgs2stderr == 1) { + /* A normal daemon can get msgs2stderr set if the socket is busted, so we + * change the message destination into an FLOG message in order to try to + * get some info about an abnormal-exit into the log file. An rsh daemon + * can have this set via user request, so we'll leave the code alone so + * that the msg gets logged and then sent to stderr after that. */ + if (am_daemon > 0 && code != FCLIENT) + code = FLOG; + } else if (send_msgs_to_gen) { + assert(!is_utf8); + /* Pass the message to our sibling in native charset. */ + send_msg((enum msgcode)code, buf, len, 0); + return; + } + + if (code == FERROR_SOCKET) /* This gets simplified for a non-sibling. */ + code = FERROR; + else if (code == FERROR_UTF8) { + is_utf8 = 1; + code = FERROR; + } + + if (code == FCLIENT) + code = FINFO; + else if (am_daemon || logfile_name) { + static int in_block; + char msg[2048]; + int priority = code == FINFO || code == FLOG ? LOG_INFO : LOG_WARNING; + + if (in_block) + return; + in_block = 1; + if (!log_initialised) + log_init(0); + strlcpy(msg, buf, MIN((int)sizeof msg, len + 1)); + logit(priority, msg); + in_block = 0; + + if (code == FLOG || (am_daemon && !am_server)) + return; + } else if (code == FLOG) + return; + + switch (code) { + case FERROR_XFER: + got_xfer_error = 1; + /* FALL THROUGH */ + case FERROR: + case FWARNING: + f = stderr; + break; + case FINFO: + if (quiet) + return; + break; + /*case FLOG:*/ + /*case FCLIENT:*/ + /*case FERROR_UTF8:*/ + /*case FERROR_SOCKET:*/ + default: + fprintf(stderr, "Bad logcode in rwrite(): %d [%s]\n", (int)code, who_am_i()); + exit_cleanup(RERR_MESSAGEIO); + } + + if (am_server && msgs2stderr != 1 && (msgs2stderr != 2 || f != stderr)) { + enum msgcode msg = (enum msgcode)code; + if (protocol_version < 30) { + if (msg == MSG_ERROR) + msg = MSG_ERROR_XFER; + else if (msg == MSG_WARNING) + msg = MSG_INFO; + } + /* Pass the message to the non-server side. */ + if (send_msg(msg, buf, len, !is_utf8)) + return; + if (am_daemon > 0) { + /* TODO: can we send the error to the user somehow? */ + return; + } + f = stderr; + } + + if (output_needs_newline) { + fputc('\n', f); + output_needs_newline = 0; + } + + trailing_CR_or_NL = len && (buf[len-1] == '\n' || buf[len-1] == '\r') ? buf[--len] : '\0'; + + if (len && buf[0] == '\r') { + fputc('\r', f); + buf++; + len--; + } + +#ifdef ICONV_CONST + if (ic != (iconv_t)-1) { + xbuf outbuf, inbuf; + char convbuf[1024]; + int ierrno; + + INIT_CONST_XBUF(outbuf, convbuf); + INIT_XBUF(inbuf, (char*)buf, len, (size_t)-1); + + while (inbuf.len) { + iconvbufs(ic, &inbuf, &outbuf, inbuf.pos ? 0 : ICB_INIT); + ierrno = errno; + if (outbuf.len) { + char trailing = inbuf.len ? '\0' : trailing_CR_or_NL; + filtered_fwrite(f, convbuf, outbuf.len, 0, trailing); + if (trailing) { + trailing_CR_or_NL = '\0'; + fflush(f); + } + outbuf.len = 0; + } + /* Log one byte of illegal/incomplete sequence and continue with + * the next character. Check that the buffer is non-empty for the + * sake of robustness. */ + if ((ierrno == EILSEQ || ierrno == EINVAL) && inbuf.len) { + fprintf(f, "\\#%03o", CVAL(inbuf.buf, inbuf.pos++)); + inbuf.len--; + } + } + + if (trailing_CR_or_NL) { + fputc(trailing_CR_or_NL, f); + fflush(f); + } + } else +#endif + { + filtered_fwrite(f, buf, len, !allow_8bit_chars, trailing_CR_or_NL); + if (trailing_CR_or_NL) + fflush(f); + } +} + +/* This is the rsync debugging function. Call it with FINFO, FERROR_*, + * FWARNING, FLOG, or FCLIENT. */ +void rprintf(enum logcode code, const char *format, ...) +{ + va_list ap; + char buf[BIGPATHBUFLEN]; + size_t len; + + va_start(ap, format); + len = vsnprintf(buf, sizeof buf, format, ap); + va_end(ap); + + /* Deal with buffer overruns. Instead of panicking, just + * truncate the resulting string. (Note that configure ensures + * that we have a vsnprintf() that doesn't ever return -1.) */ + if (len > sizeof buf - 1) { + static const char ellipsis[] = "[...]"; + + /* Reset length, and zero-terminate the end of our buffer */ + len = sizeof buf - 1; + buf[len] = '\0'; + + /* Copy the ellipsis to the end of the string, but give + * us one extra character: + * + * v--- null byte at buf[sizeof buf - 1] + * abcdefghij0 + * -> abcd[...]00 <-- now two null bytes at end + * + * If the input format string has a trailing newline, + * we copy it into that extra null; if it doesn't, well, + * all we lose is one byte. */ + memcpy(buf+len-sizeof ellipsis, ellipsis, sizeof ellipsis); + if (format[strlen(format)-1] == '\n') { + buf[len-1] = '\n'; + } + } + + rwrite(code, buf, len, 0); +} + +/* This is like rprintf, but it also tries to print some + * representation of the error code. Normally errcode = errno. + * + * Unlike rprintf, this always adds a newline and there should not be + * one in the format string. + * + * Note that since strerror might involve dynamically loading a + * message catalog we need to call it once before chroot-ing. */ +void rsyserr(enum logcode code, int errcode, const char *format, ...) +{ + va_list ap; + char buf[BIGPATHBUFLEN]; + size_t len; + + len = snprintf(buf, sizeof buf, RSYNC_NAME ": [%s] ", who_am_i()); + + va_start(ap, format); + len += vsnprintf(buf + len, sizeof buf - len, format, ap); + va_end(ap); + + if (len < sizeof buf) { + len += snprintf(buf + len, sizeof buf - len, + ": %s (%d)\n", strerror(errcode), errcode); + } + if (len >= sizeof buf) + exit_cleanup(RERR_MESSAGEIO); + + rwrite(code, buf, len, 0); +} + +void rflush(enum logcode code) +{ + FILE *f; + + if (am_daemon || code == FLOG) + return; + + if (!am_server && (code == FINFO || code == FCLIENT)) + f = stdout; + else + f = stderr; + + fflush(f); +} + +void remember_initial_stats(void) +{ + initial_data_read = total_data_read; + initial_data_written = total_data_written; +} + +/* A generic logging routine for send/recv, with parameter substitiution. */ +static void log_formatted(enum logcode code, const char *format, const char *op, + struct file_struct *file, const char *fname, int iflags, + const char *hlink) +{ + char buf[MAXPATHLEN+1024], buf2[MAXPATHLEN], fmt[32]; + char *p, *s, *c; + const char *n; + size_t len, total; + int64 b; + + *fmt = '%'; + + /* We expand % codes one by one in place in buf. We don't + * copy in the terminating null of the inserted strings, but + * rather keep going until we reach the null of the format. */ + total = strlcpy(buf, format, sizeof buf); + if (total > MAXPATHLEN) { + rprintf(FERROR, "log-format string is WAY too long!\n"); + exit_cleanup(RERR_MESSAGEIO); + } + buf[total++] = '\n'; + buf[total] = '\0'; + + for (p = buf; (p = strchr(p, '%')) != NULL; ) { + int humanize = 0; + s = p++; + c = fmt + 1; + while (*p == '\'') { + humanize++; + p++; + } + if (*p == '-') + *c++ = *p++; + while (isDigit(p) && c - fmt < (int)(sizeof fmt) - 8) + *c++ = *p++; + while (*p == '\'') { + humanize++; + p++; + } + if (!*p) + break; + *c = '\0'; + n = NULL; + + /* Note for %h and %a: it doesn't matter what fd we pass to + * client_{name,addr} because rsync_module will already have + * forced the answer to be cached (assuming, of course, for %h + * that lp_reverse_lookup(module_id) is true). */ + switch (*p) { + case 'h': + if (am_daemon) { + n = lp_reverse_lookup(module_id) + ? client_name(0) : undetermined_hostname; + } + break; + case 'a': + if (am_daemon) + n = client_addr(0); + break; + case 'l': + strlcat(fmt, "s", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, + do_big_num(F_LENGTH(file), humanize, NULL)); + n = buf2; + break; + case 'U': + strlcat(fmt, "u", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, + uid_ndx ? F_OWNER(file) : 0); + n = buf2; + break; + case 'G': + if (!gid_ndx || file->flags & FLAG_SKIP_GROUP) + n = "DEFAULT"; + else { + strlcat(fmt, "u", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, + F_GROUP(file)); + n = buf2; + } + break; + case 'p': + strlcat(fmt, "d", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, (int)getpid()); + n = buf2; + break; + case 'M': + n = c = timestring(file->modtime); + while ((c = strchr(c, ' ')) != NULL) + *c = '-'; + break; + case 'B': + c = buf2 + MAXPATHLEN - PERMSTRING_SIZE - 1; + permstring(c, file->mode); + n = c + 1; /* skip the type char */ + break; + case 'o': + n = op; + break; + case 'f': + if (fname) { + c = f_name_buf(); + strlcpy(c, fname, MAXPATHLEN); + } else + c = f_name(file, NULL); + if (am_sender && F_PATHNAME(file)) { + pathjoin(buf2, sizeof buf2, + F_PATHNAME(file), c); + clean_fname(buf2, 0); + if (fmt[1]) { + strlcpy(c, buf2, MAXPATHLEN); + n = c; + } else + n = buf2; + } else if (am_daemon && *c != '/') { + pathjoin(buf2, sizeof buf2, + curr_dir + module_dirlen, c); + clean_fname(buf2, 0); + if (fmt[1]) { + strlcpy(c, buf2, MAXPATHLEN); + n = c; + } else + n = buf2; + } else { + clean_fname(c, 0); + n = c; + } + if (*n == '/') + n++; + break; + case 'n': + if (fname) { + c = f_name_buf(); + strlcpy(c, fname, MAXPATHLEN); + } else + c = f_name(file, NULL); + if (S_ISDIR(file->mode)) + strlcat(c, "/", MAXPATHLEN); + n = c; + break; + case 'L': + if (hlink && *hlink) { + n = hlink; + strlcpy(buf2, " => ", sizeof buf2); + } else if (S_ISLNK(file->mode) && !fname) { + n = F_SYMLINK(file); + strlcpy(buf2, " -> ", sizeof buf2); + } else { + n = ""; + if (!fmt[1]) + break; + strlcpy(buf2, " ", sizeof buf2); + } + strlcat(fmt, "s", sizeof fmt); + snprintf(buf2 + 4, sizeof buf2 - 4, fmt, n); + n = buf2; + break; + case 'm': + n = lp_name(module_id); + break; + case 't': + n = timestring(time(NULL)); + break; + case 'P': + n = full_module_path; + break; + case 'u': + n = auth_user; + break; + case 'b': + case 'c': + if (!(iflags & ITEM_TRANSFER)) + b = 0; + else if ((!!am_sender) ^ (*p == 'c')) + b = total_data_written - initial_data_written; + else + b = total_data_read - initial_data_read; + strlcat(fmt, "s", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, + do_big_num(b, humanize, NULL)); + n = buf2; + break; + case 'C': + n = NULL; + if (S_ISREG(file->mode)) { + if (always_checksum) + n = sum_as_hex(file_sum_nni->num, F_SUM(file), 1); + else if (iflags & ITEM_TRANSFER) + n = sum_as_hex(xfer_sum_nni->num, sender_file_sum, 0); + } + if (!n) { + int sum_len = csum_len_for_type(always_checksum ? file_sum_nni->num : xfer_sum_nni->num, + always_checksum); + memset(buf2, ' ', sum_len*2); + buf2[sum_len*2] = '\0'; + n = buf2; + } + break; + case 'i': + if (iflags & ITEM_DELETED) { + n = "*deleting "; + break; + } + n = c = buf2 + MAXPATHLEN - 32; + c[0] = iflags & ITEM_LOCAL_CHANGE + ? iflags & ITEM_XNAME_FOLLOWS ? 'h' : 'c' + : !(iflags & ITEM_TRANSFER) ? '.' + : !local_server && *op == 's' ? '<' : '>'; + if (S_ISLNK(file->mode)) { + c[1] = 'L'; + c[3] = '.'; + c[4] = !(iflags & ITEM_REPORT_TIME) ? '.' + : !preserve_mtimes || !receiver_symlink_times + || (iflags & ITEM_REPORT_TIMEFAIL) ? 'T' : 't'; + } else { + c[1] = S_ISDIR(file->mode) ? 'd' + : IS_SPECIAL(file->mode) ? 'S' + : IS_DEVICE(file->mode) ? 'D' : 'f'; + c[3] = !(iflags & ITEM_REPORT_SIZE) ? '.' : 's'; + c[4] = !(iflags & ITEM_REPORT_TIME) ? '.' + : !preserve_mtimes ? 'T' : 't'; + } + c[2] = !(iflags & ITEM_REPORT_CHANGE) ? '.' : 'c'; + c[5] = !(iflags & ITEM_REPORT_PERMS) ? '.' : 'p'; + c[6] = !(iflags & ITEM_REPORT_OWNER) ? '.' : 'o'; + c[7] = !(iflags & ITEM_REPORT_GROUP) ? '.' : 'g'; + c[8] = !(iflags & (ITEM_REPORT_ATIME|ITEM_REPORT_CRTIME)) ? '.' + : BITS_SET(iflags, ITEM_REPORT_ATIME|ITEM_REPORT_CRTIME) ? 'b' + : iflags & ITEM_REPORT_ATIME ? 'u' : 'n'; + c[9] = !(iflags & ITEM_REPORT_ACL) ? '.' : 'a'; + c[10] = !(iflags & ITEM_REPORT_XATTR) ? '.' : 'x'; + c[11] = '\0'; + + if (iflags & (ITEM_IS_NEW|ITEM_MISSING_DATA)) { + char ch = iflags & ITEM_IS_NEW ? '+' : '?'; + int i; + for (i = 2; c[i]; i++) + c[i] = ch; + } else if (c[0] == '.' || c[0] == 'h' || c[0] == 'c') { + int i; + for (i = 2; c[i]; i++) { + if (c[i] != '.') + break; + } + if (!c[i]) { + for (i = 2; c[i]; i++) + c[i] = ' '; + } + } + break; + } + + /* "n" is the string to be inserted in place of this % code. */ + if (!n) + continue; + if (n != buf2 && fmt[1]) { + strlcat(fmt, "s", sizeof fmt); + snprintf(buf2, sizeof buf2, fmt, n); + n = buf2; + } + len = strlen(n); + + /* Subtract the length of the escape from the string's size. */ + total -= p - s + 1; + + if (len + total >= (size_t)sizeof buf) { + rprintf(FERROR, + "buffer overflow expanding %%%c -- exiting\n", + p[0]); + exit_cleanup(RERR_MESSAGEIO); + } + + /* Shuffle the rest of the string along to make space for n */ + if (len != (size_t)(p - s + 1)) + memmove(s + len, p + 1, total - (s - buf) + 1); + total += len; + + /* Insert the contents of string "n", but NOT its null. */ + if (len) + memcpy(s, n, len); + + /* Skip over inserted string; continue looking */ + p = s + len; + } + + rwrite(code, buf, total, 0); +} + +/* Return 1 if the format escape is in the log-format string (e.g. look for + * the 'b' in the "%9b" format escape). */ +int log_format_has(const char *format, char esc) +{ + const char *p; + + if (!format) + return 0; + + for (p = format; (p = strchr(p, '%')) != NULL; ) { + for (p++; *p == '\''; p++) {} /*SHARED ITERATOR*/ + if (*p == '-') + p++; + while (isDigit(p)) + p++; + while (*p == '\'') p++; + if (!*p) + break; + if (*p == esc) + return 1; + } + return 0; +} + +/* Log the transfer of a file. If the code is FCLIENT, the output just goes + * to stdout. If it is FLOG, it just goes to the log file. Otherwise we + * output to both. */ +void log_item(enum logcode code, struct file_struct *file, int iflags, const char *hlink) +{ + const char *s_or_r = am_sender ? "send" : "recv"; + + if (code != FLOG && stdout_format && !am_server) + log_formatted(FCLIENT, stdout_format, s_or_r, file, NULL, iflags, hlink); + if (code != FCLIENT && logfile_format && *logfile_format) + log_formatted(FLOG, logfile_format, s_or_r, file, NULL, iflags, hlink); +} + +void maybe_log_item(struct file_struct *file, int iflags, int itemizing, const char *buf) +{ + int significant_flags = iflags & SIGNIFICANT_ITEM_FLAGS; + int see_item = itemizing && (significant_flags || *buf + || stdout_format_has_i > 1 || (INFO_GTE(NAME, 2) && stdout_format_has_i)); + int local_change = iflags & ITEM_LOCAL_CHANGE && significant_flags; + if (am_server) { + if (logfile_name && !dry_run && see_item + && (significant_flags || logfile_format_has_i)) + log_item(FLOG, file, iflags, buf); + } else if (see_item || local_change || *buf + || (S_ISDIR(file->mode) && significant_flags)) { + enum logcode code = significant_flags || logfile_format_has_i ? FINFO : FCLIENT; + log_item(code, file, iflags, buf); + } +} + +void log_delete(const char *fname, int mode) +{ + static struct file_struct *file = NULL; + int len = strlen(fname); + const char *fmt; + + if (!file) { + int extra_len = (file_extra_cnt + 2) * EXTRA_LEN; + char *bp; +#if EXTRA_ROUNDING > 0 + if (extra_len & (EXTRA_ROUNDING * EXTRA_LEN)) + extra_len = (extra_len | (EXTRA_ROUNDING * EXTRA_LEN)) + EXTRA_LEN; +#endif + + bp = new_array0(char, FILE_STRUCT_LEN + extra_len + 1); + bp += extra_len; + file = (struct file_struct *)bp; + } + + file->mode = mode; + + if (am_server && protocol_version >= 29 && len < MAXPATHLEN) { + if (S_ISDIR(mode)) + len++; /* directories include trailing null */ + send_msg(MSG_DELETED, fname, len, am_generator); + } else if (!INFO_GTE(DEL, 1) && !stdout_format) + ; + else { + fmt = stdout_format_has_o_or_i ? stdout_format : "deleting %n"; + log_formatted(FCLIENT, fmt, "del.", file, fname, ITEM_DELETED, NULL); + } + + if (!logfile_name || dry_run || !logfile_format) + return; + + fmt = logfile_format_has_o_or_i ? logfile_format : "deleting %n"; + log_formatted(FLOG, fmt, "del.", file, fname, ITEM_DELETED, NULL); +} + +/* + * Called when the transfer is interrupted for some reason. + * + * Code is one of the RERR_* codes from errcode.h, or terminating + * successfully. + */ +void log_exit(int code, const char *file, int line) +{ + /* The receiving side's stats are split between 2 procs until the + * end of the run, so only the sender can output non-final info. */ + if (code == 0 || am_sender) { + rprintf(FLOG,"sent %s bytes received %s bytes total size %s\n", + big_num(stats.total_written), + big_num(stats.total_read), + big_num(stats.total_size)); + } + if (code != 0 && am_server != 2) { + const char *name; + + name = rerr_name(code); + if (!name) + name = "unexplained error"; + + /* VANISHED is not an error, only a warning */ + if (code == RERR_VANISHED) { + rprintf(FWARNING, "rsync warning: %s (code %d) at %s(%d) [%s=%s]\n", + name, code, src_file(file), line, who_am_i(), rsync_version()); + } else { + rprintf(FERROR, "rsync error: %s (code %d) at %s(%d) [%s=%s]\n", + name, code, src_file(file), line, who_am_i(), rsync_version()); + } + } +} |