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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 05:45:02 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 05:45:02 +0000 |
commit | 68a560641f7a38c184fd3346dd8008b86e12d77a (patch) | |
tree | d927b2a890d51e5d9e037c03042fb6fabd689cc0 /src/getrpcent.c | |
parent | Initial commit. (diff) | |
download | libtirpc-upstream.tar.xz libtirpc-upstream.zip |
Adding upstream version 1.3.4+ds.upstream/1.3.4+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/getrpcent.c')
-rw-r--r-- | src/getrpcent.c | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/src/getrpcent.c b/src/getrpcent.c new file mode 100644 index 0000000..e49dc05 --- /dev/null +++ b/src/getrpcent.c @@ -0,0 +1,332 @@ +/* + * Copyright (c) 2009, Sun Microsystems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * - Neither the name of Sun Microsystems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1984 by Sun Microsystems, Inc. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <sys/types.h> + +#include <netinet/in.h> +#include <arpa/inet.h> + +#include <assert.h> +#include <netdb.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <rpc/rpc.h> +#ifdef YP +#include <rpcsvc/yp_prot.h> +#include <rpcsvc/ypclnt.h> +#endif +#if defined(__FreeBSD__) || defined(__NetBSD__) +#include <libc_private.h> +#endif + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#if !HAVE_GETRPCBYNAME || !HAVE_GETRPCBYNUMBER || \ + !HAVE_SETRPCENT || !HAVE_ENDRPCENT || !HAVE_GETRPCENT + +/* + * Internet version. + */ +static struct rpcdata { + FILE *rpcf; + int stayopen; +#define MAXALIASES 35 + char *rpc_aliases[MAXALIASES]; + struct rpcent rpc; + char line[BUFSIZ+1]; +#ifdef YP + char *domain; + char *current; + int currentlen; +#endif +} *rpcdata; + +static struct rpcent *interpret(char *val, size_t len); + +#ifdef YP +static int __yp_nomap = 0; +#endif /* YP */ + +#define RPCDB "/etc/rpc" + +static struct rpcdata *_rpcdata(void); + +static struct rpcdata * +_rpcdata() +{ + struct rpcdata *d = rpcdata; + + if (d == 0) { + d = (struct rpcdata *)calloc(1, sizeof (struct rpcdata)); + rpcdata = d; + } + return (d); +} + +#if !HAVE_GETRPCBYNUMBER +struct rpcent * +getrpcbynumber(number) + int number; +{ +#ifdef YP + int reason; + char adrstr[16]; +#endif + struct rpcent *p; + struct rpcdata *d = _rpcdata(); + + if (d == 0) + return (0); +#ifdef YP + if (!__yp_nomap && __yp_check(&d->domain)) { + sprintf(adrstr, "%d", number); + reason = yp_match(d->domain, "rpc.bynumber", adrstr, strlen(adrstr), + &d->current, &d->currentlen); + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + d->current[d->currentlen] = '\0'; + p = interpret(d->current, d->currentlen); + (void) free(d->current); + return p; + } +no_yp: +#endif /* YP */ + + setrpcent(0); + while ((p = getrpcent()) != NULL) { + if (p->r_number == number) + break; + } + endrpcent(); + return (p); +} +#endif /* !HAVE_GETRPCBYNUMBER */ + +#if !HAVE_GETRPCBYNAME +struct rpcent * +getrpcbyname(name) + const char *name; +{ + struct rpcent *rpc = NULL; + char **rp; + + assert(name != NULL); + + setrpcent(0); + while ((rpc = getrpcent()) != NULL) { + if (strcmp(rpc->r_name, name) == 0) + goto done; + for (rp = rpc->r_aliases; *rp != NULL; rp++) { + if (strcmp(*rp, name) == 0) + goto done; + } + } +done: + endrpcent(); + return (rpc); +} +#endif /* !HAVE_GETRPCBYNAME */ + +#if !HAVE_SETRPCENT +void +setrpcent(f) + int f; +{ + struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && __yp_check(NULL)) { + if (d->current) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf == NULL) + d->rpcf = fopen(RPCDB, "r"); + else + rewind(d->rpcf); + d->stayopen |= f; +} +#endif + +#if !HAVE_ENDRPCENT +void +endrpcent() +{ + struct rpcdata *d = _rpcdata(); + + if (d == 0) + return; +#ifdef YP + if (!__yp_nomap && __yp_check(NULL)) { + if (d->current && !d->stayopen) + free(d->current); + d->current = NULL; + d->currentlen = 0; + return; + } + __yp_nomap = 0; +#endif /* YP */ + if (d->rpcf && !d->stayopen) { + fclose(d->rpcf); + d->rpcf = NULL; + } +} +#endif + +#if !HAVE_GETRPCENT +struct rpcent * +getrpcent() +{ + struct rpcdata *d = _rpcdata(); +#ifdef YP + struct rpcent *hp; + int reason; + char *val = NULL; + int vallen; +#endif + + if (d == 0) + return(NULL); +#ifdef YP + if (!__yp_nomap && __yp_check(&d->domain)) { + if (d->current == NULL && d->currentlen == 0) { + reason = yp_first(d->domain, "rpc.bynumber", + &d->current, &d->currentlen, + &val, &vallen); + } else { + reason = yp_next(d->domain, "rpc.bynumber", + d->current, d->currentlen, + &d->current, &d->currentlen, + &val, &vallen); + } + switch(reason) { + case 0: + break; + case YPERR_MAP: + __yp_nomap = 1; + goto no_yp; + break; + default: + return(0); + break; + } + val[vallen] = '\0'; + hp = interpret(val, vallen); + (void) free(val); + return hp; + } +no_yp: +#endif /* YP */ + if (d->rpcf == NULL && (d->rpcf = fopen(RPCDB, "r")) == NULL) + return (NULL); + /* -1 so there is room to append a \n below */ + if (fgets(d->line, BUFSIZ - 1, d->rpcf) == NULL) + return (NULL); + return (interpret(d->line, strlen(d->line))); +} +#endif + +static struct rpcent * +interpret(val, len) + char *val; + size_t len; +{ + struct rpcdata *d = _rpcdata(); + char *p; + char *cp, **q; + + assert(val != NULL); + + if (d == 0) + return (0); + (void) strncpy(d->line, val, BUFSIZ); + d->line[BUFSIZ] = '\0'; + p = d->line; + p[len] = '\n'; + if (*p == '#') + return (getrpcent()); + cp = strpbrk(p, "#\n"); + if (cp == NULL) + return (getrpcent()); + *cp = '\0'; + cp = strpbrk(p, " \t"); + if (cp == NULL) + return (getrpcent()); + *cp++ = '\0'; + /* THIS STUFF IS INTERNET SPECIFIC */ + d->rpc.r_name = d->line; + while (*cp == ' ' || *cp == '\t') + cp++; + d->rpc.r_number = atoi(cp); + q = d->rpc.r_aliases = d->rpc_aliases; + cp = strpbrk(cp, " \t"); + if (cp != NULL) + *cp++ = '\0'; + while (cp && *cp) { + if (*cp == ' ' || *cp == '\t') { + cp++; + continue; + } + if (q < &(d->rpc_aliases[MAXALIASES - 1])) + *q++ = cp; + cp = strpbrk(cp, " \t"); + if (cp != NULL) + *cp++ = '\0'; + } + *q = NULL; + return (&d->rpc); +} + +#endif |