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-rw-r--r--src/getrpcent.c332
1 files changed, 332 insertions, 0 deletions
diff --git a/src/getrpcent.c b/src/getrpcent.c
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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
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