1047 lines
21 KiB
C
1047 lines
21 KiB
C
/* $NetBSD: getrpcent.c,v 1.17 2000/01/22 22:19:17 mycroft Exp $ */
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/*-
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* Copyright (c) 2009, Sun Microsystems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of Sun Microsystems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char *sccsid = "@(#)getrpcent.c 1.14 91/03/11 Copyr 1984 Sun Micro";
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Copyright (c) 1984 by Sun Microsystems, Inc.
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <assert.h>
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#include <errno.h>
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#include <nsswitch.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <rpc/rpc.h>
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#ifdef YP
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#include <rpcsvc/yp_prot.h>
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#include <rpcsvc/ypclnt.h>
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#endif
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#include <unistd.h>
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#include "namespace.h"
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#include "reentrant.h"
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#include "un-namespace.h"
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#include "libc_private.h"
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#include "nss_tls.h"
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#ifdef NS_CACHING
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#include "nscache.h"
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#endif
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#define RPCDB "/etc/rpc"
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/* nsswitch declarations */
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enum constants
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{
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SETRPCENT = 1,
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ENDRPCENT = 2,
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RPCENT_STORAGE_INITIAL = 1 << 10, /* 1 KByte */
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RPCENT_STORAGE_MAX = 1 << 20, /* 1 MByte */
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};
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static const ns_src defaultsrc[] = {
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{ NSSRC_FILES, NS_SUCCESS },
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#ifdef YP
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{ NSSRC_NIS, NS_SUCCESS },
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#endif
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{ NULL, 0 }
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};
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/* files backend declarations */
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struct files_state {
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FILE *fp;
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int stayopen;
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};
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static int files_rpcent(void *, void *, va_list);
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static int files_setrpcent(void *, void *, va_list);
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static void files_endstate(void *);
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NSS_TLS_HANDLING(files);
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/* nis backend declarations */
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#ifdef YP
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struct nis_state {
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char domain[MAXHOSTNAMELEN];
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char *current;
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int currentlen;
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int stepping;
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int no_name_map;
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};
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static int nis_rpcent(void *, void *, va_list);
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static int nis_setrpcent(void *, void *, va_list);
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static void nis_endstate(void *);
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NSS_TLS_HANDLING(nis);
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#endif
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/* get** wrappers for get**_r functions declarations */
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struct rpcent_state {
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struct rpcent rpc;
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char *buffer;
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size_t bufsize;
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};
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static void rpcent_endstate(void *);
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NSS_TLS_HANDLING(rpcent);
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union key {
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const char *name;
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int number;
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};
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static int wrap_getrpcbyname_r(union key, struct rpcent *, char *,
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size_t, struct rpcent **);
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static int wrap_getrpcbynumber_r(union key, struct rpcent *, char *,
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size_t, struct rpcent **);
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static int wrap_getrpcent_r(union key, struct rpcent *, char *,
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size_t, struct rpcent **);
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static struct rpcent *getrpc(int (*fn)(union key, struct rpcent *, char *,
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size_t, struct rpcent **), union key);
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#ifdef NS_CACHING
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static int rpc_id_func(char *, size_t *, va_list, void *);
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static int rpc_marshal_func(char *, size_t *, void *, va_list, void *);
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static int rpc_unmarshal_func(char *, size_t, void *, va_list, void *);
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#endif
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static int
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rpcent_unpack(char *p, struct rpcent *rpc, char **r_aliases,
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size_t aliases_size, int *errnop)
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{
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char *cp, **q;
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assert(p != NULL);
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if (*p == '#')
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return (-1);
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cp = strpbrk(p, "#\n");
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if (cp == NULL)
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return (-1);
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*cp = '\0';
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cp = strpbrk(p, " \t");
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if (cp == NULL)
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return (-1);
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*cp++ = '\0';
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/* THIS STUFF IS INTERNET SPECIFIC */
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rpc->r_name = p;
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while (*cp == ' ' || *cp == '\t')
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cp++;
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rpc->r_number = atoi(cp);
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q = rpc->r_aliases = r_aliases;
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cp = strpbrk(cp, " \t");
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if (cp != NULL)
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*cp++ = '\0';
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while (cp && *cp) {
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if (*cp == ' ' || *cp == '\t') {
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cp++;
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continue;
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}
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if (q < &(r_aliases[aliases_size - 1]))
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*q++ = cp;
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else {
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*errnop = ERANGE;
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return -1;
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}
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cp = strpbrk(cp, " \t");
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if (cp != NULL)
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*cp++ = '\0';
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}
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*q = NULL;
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return 0;
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}
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/* files backend implementation */
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static void
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files_endstate(void *p)
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{
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FILE * f;
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if (p == NULL)
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return;
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f = ((struct files_state *)p)->fp;
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if (f != NULL)
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fclose(f);
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free(p);
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}
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static int
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files_rpcent(void *retval, void *mdata, va_list ap)
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{
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char *name;
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int number;
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struct rpcent *rpc;
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char *buffer;
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size_t bufsize;
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int *errnop;
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char *line;
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size_t linesize;
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char **aliases;
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int aliases_size;
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char **rp;
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struct files_state *st;
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int rv;
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int stayopen;
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enum nss_lookup_type how;
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how = (enum nss_lookup_type)mdata;
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switch (how)
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{
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case nss_lt_name:
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name = va_arg(ap, char *);
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break;
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case nss_lt_id:
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number = va_arg(ap, int);
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break;
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case nss_lt_all:
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break;
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default:
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return (NS_NOTFOUND);
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}
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rpc = va_arg(ap, struct rpcent *);
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buffer = va_arg(ap, char *);
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bufsize = va_arg(ap, size_t);
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errnop = va_arg(ap, int *);
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*errnop = files_getstate(&st);
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if (*errnop != 0)
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return (NS_UNAVAIL);
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if (st->fp == NULL && (st->fp = fopen(RPCDB, "r")) == NULL) {
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*errnop = errno;
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return (NS_UNAVAIL);
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}
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if (how == nss_lt_all)
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stayopen = 1;
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else {
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rewind(st->fp);
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stayopen = st->stayopen;
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}
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do {
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if ((line = fgetln(st->fp, &linesize)) == NULL) {
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*errnop = errno;
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rv = NS_RETURN;
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break;
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}
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if (bufsize <= linesize + _ALIGNBYTES + sizeof(char *)) {
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*errnop = ERANGE;
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rv = NS_RETURN;
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break;
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}
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aliases = (char **)_ALIGN(&buffer[linesize+1]);
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aliases_size = (buffer + bufsize -
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(char *)aliases)/sizeof(char *);
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if (aliases_size < 1) {
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*errnop = ERANGE;
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rv = NS_RETURN;
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break;
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}
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memcpy(buffer, line, linesize);
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buffer[linesize] = '\0';
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rv = rpcent_unpack(buffer, rpc, aliases, aliases_size, errnop);
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if (rv != 0) {
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if (*errnop == 0) {
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rv = NS_NOTFOUND;
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continue;
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}
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else {
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rv = NS_RETURN;
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break;
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}
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}
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switch (how)
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{
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case nss_lt_name:
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if (strcmp(rpc->r_name, name) == 0)
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goto done;
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for (rp = rpc->r_aliases; *rp != NULL; rp++) {
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if (strcmp(*rp, name) == 0)
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goto done;
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}
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rv = NS_NOTFOUND;
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continue;
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done:
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rv = NS_SUCCESS;
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break;
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case nss_lt_id:
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rv = (rpc->r_number == number) ? NS_SUCCESS :
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NS_NOTFOUND;
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break;
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case nss_lt_all:
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rv = NS_SUCCESS;
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break;
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}
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} while (!(rv & NS_TERMINATE));
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if (!stayopen && st->fp!=NULL) {
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fclose(st->fp);
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st->fp = NULL;
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}
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if ((rv == NS_SUCCESS) && (retval != NULL))
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*((struct rpcent **)retval) = rpc;
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return (rv);
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}
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static int
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files_setrpcent(void *retval, void *mdata, va_list ap)
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{
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struct files_state *st;
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int rv;
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int f;
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rv = files_getstate(&st);
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if (rv != 0)
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return (NS_UNAVAIL);
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switch ((enum constants)mdata)
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{
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case SETRPCENT:
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f = va_arg(ap,int);
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if (st->fp == NULL)
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st->fp = fopen(RPCDB, "r");
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else
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rewind(st->fp);
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st->stayopen |= f;
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break;
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case ENDRPCENT:
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if (st->fp != NULL) {
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fclose(st->fp);
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st->fp = NULL;
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}
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st->stayopen = 0;
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break;
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default:
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break;
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}
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return (NS_UNAVAIL);
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}
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/* nis backend implementation */
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#ifdef YP
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static void
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nis_endstate(void *p)
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{
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if (p == NULL)
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return;
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free(((struct nis_state *)p)->current);
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free(p);
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}
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static int
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nis_rpcent(void *retval, void *mdata, va_list ap)
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{
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char *name;
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int number;
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struct rpcent *rpc;
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char *buffer;
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size_t bufsize;
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int *errnop;
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char **rp;
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char **aliases;
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int aliases_size;
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char *lastkey;
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char *resultbuf;
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int resultbuflen;
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char buf[YPMAXRECORD + 2];
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struct nis_state *st;
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int rv;
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enum nss_lookup_type how;
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int no_name_active;
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how = (enum nss_lookup_type)mdata;
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switch (how)
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{
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case nss_lt_name:
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name = va_arg(ap, char *);
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break;
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case nss_lt_id:
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number = va_arg(ap, int);
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break;
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case nss_lt_all:
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break;
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default:
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return (NS_NOTFOUND);
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}
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rpc = va_arg(ap, struct rpcent *);
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buffer = va_arg(ap, char *);
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bufsize = va_arg(ap, size_t);
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errnop = va_arg(ap, int *);
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*errnop = nis_getstate(&st);
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if (*errnop != 0)
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return (NS_UNAVAIL);
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if (st->domain[0] == '\0') {
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if (getdomainname(st->domain, sizeof(st->domain)) != 0) {
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*errnop = errno;
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return (NS_UNAVAIL);
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}
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}
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no_name_active = 0;
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do {
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switch (how)
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{
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case nss_lt_name:
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if (!st->no_name_map)
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{
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snprintf(buf, sizeof buf, "%s", name);
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rv = yp_match(st->domain, "rpc.byname", buf,
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strlen(buf), &resultbuf, &resultbuflen);
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switch (rv) {
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case 0:
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break;
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case YPERR_MAP:
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st->stepping = 0;
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no_name_active = 1;
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how = nss_lt_all;
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rv = NS_NOTFOUND;
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continue;
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default:
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rv = NS_NOTFOUND;
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goto fin;
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}
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} else {
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st->stepping = 0;
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no_name_active = 1;
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how = nss_lt_all;
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|
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rv = NS_NOTFOUND;
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continue;
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}
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break;
|
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case nss_lt_id:
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snprintf(buf, sizeof buf, "%d", number);
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if (yp_match(st->domain, "rpc.bynumber", buf,
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strlen(buf), &resultbuf, &resultbuflen)) {
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rv = NS_NOTFOUND;
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goto fin;
|
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}
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break;
|
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case nss_lt_all:
|
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if (!st->stepping) {
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rv = yp_first(st->domain, "rpc.bynumber",
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&st->current,
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&st->currentlen, &resultbuf,
|
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&resultbuflen);
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if (rv) {
|
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rv = NS_NOTFOUND;
|
|
goto fin;
|
|
}
|
|
st->stepping = 1;
|
|
} else {
|
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lastkey = st->current;
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rv = yp_next(st->domain, "rpc.bynumber",
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st->current,
|
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st->currentlen, &st->current,
|
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&st->currentlen,
|
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&resultbuf, &resultbuflen);
|
|
free(lastkey);
|
|
if (rv) {
|
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st->stepping = 0;
|
|
rv = NS_NOTFOUND;
|
|
goto fin;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* we need a room for additional \n symbol */
|
|
if (bufsize <= resultbuflen + 1 + _ALIGNBYTES +
|
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sizeof(char *)) {
|
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*errnop = ERANGE;
|
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rv = NS_RETURN;
|
|
break;
|
|
}
|
|
|
|
aliases=(char **)_ALIGN(&buffer[resultbuflen+2]);
|
|
aliases_size = (buffer + bufsize - (char *)aliases) /
|
|
sizeof(char *);
|
|
if (aliases_size < 1) {
|
|
*errnop = ERANGE;
|
|
rv = NS_RETURN;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* rpcent_unpack expects lines terminated with \n -- make it happy
|
|
*/
|
|
memcpy(buffer, resultbuf, resultbuflen);
|
|
buffer[resultbuflen] = '\n';
|
|
buffer[resultbuflen+1] = '\0';
|
|
free(resultbuf);
|
|
|
|
if (rpcent_unpack(buffer, rpc, aliases, aliases_size,
|
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errnop) != 0) {
|
|
if (*errnop == 0)
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rv = NS_NOTFOUND;
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else
|
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rv = NS_RETURN;
|
|
} else {
|
|
if ((how == nss_lt_all) && (no_name_active != 0)) {
|
|
if (strcmp(rpc->r_name, name) == 0)
|
|
goto done;
|
|
for (rp = rpc->r_aliases; *rp != NULL; rp++) {
|
|
if (strcmp(*rp, name) == 0)
|
|
goto done;
|
|
}
|
|
rv = NS_NOTFOUND;
|
|
continue;
|
|
done:
|
|
rv = NS_SUCCESS;
|
|
} else
|
|
rv = NS_SUCCESS;
|
|
}
|
|
|
|
} while (!(rv & NS_TERMINATE) && (how == nss_lt_all));
|
|
|
|
fin:
|
|
if ((rv == NS_SUCCESS) && (retval != NULL))
|
|
*((struct rpcent **)retval) = rpc;
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
nis_setrpcent(void *retval, void *mdata, va_list ap)
|
|
{
|
|
struct nis_state *st;
|
|
int rv;
|
|
|
|
rv = nis_getstate(&st);
|
|
if (rv != 0)
|
|
return (NS_UNAVAIL);
|
|
|
|
switch ((enum constants)mdata)
|
|
{
|
|
case SETRPCENT:
|
|
case ENDRPCENT:
|
|
free(st->current);
|
|
st->current = NULL;
|
|
st->stepping = 0;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (NS_UNAVAIL);
|
|
}
|
|
#endif
|
|
|
|
#ifdef NS_CACHING
|
|
static int
|
|
rpc_id_func(char *buffer, size_t *buffer_size, va_list ap, void *cache_mdata)
|
|
{
|
|
char *name;
|
|
int rpc;
|
|
|
|
size_t desired_size, size;
|
|
enum nss_lookup_type lookup_type;
|
|
int res = NS_UNAVAIL;
|
|
|
|
lookup_type = (enum nss_lookup_type)cache_mdata;
|
|
switch (lookup_type) {
|
|
case nss_lt_name:
|
|
name = va_arg(ap, char *);
|
|
|
|
size = strlen(name);
|
|
desired_size = sizeof(enum nss_lookup_type) + size + 1;
|
|
if (desired_size > *buffer_size) {
|
|
res = NS_RETURN;
|
|
goto fin;
|
|
}
|
|
|
|
memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type));
|
|
memcpy(buffer + sizeof(enum nss_lookup_type), name, size + 1);
|
|
|
|
res = NS_SUCCESS;
|
|
break;
|
|
case nss_lt_id:
|
|
rpc = va_arg(ap, int);
|
|
|
|
desired_size = sizeof(enum nss_lookup_type) + sizeof(int);
|
|
if (desired_size > *buffer_size) {
|
|
res = NS_RETURN;
|
|
goto fin;
|
|
}
|
|
|
|
memcpy(buffer, &lookup_type, sizeof(enum nss_lookup_type));
|
|
memcpy(buffer + sizeof(enum nss_lookup_type), &rpc,
|
|
sizeof(int));
|
|
|
|
res = NS_SUCCESS;
|
|
break;
|
|
default:
|
|
/* should be unreachable */
|
|
return (NS_UNAVAIL);
|
|
}
|
|
|
|
fin:
|
|
*buffer_size = desired_size;
|
|
return (res);
|
|
}
|
|
|
|
static int
|
|
rpc_marshal_func(char *buffer, size_t *buffer_size, void *retval, va_list ap,
|
|
void *cache_mdata)
|
|
{
|
|
char *name;
|
|
int num;
|
|
struct rpcent *rpc;
|
|
char *orig_buf;
|
|
size_t orig_buf_size;
|
|
|
|
struct rpcent new_rpc;
|
|
size_t desired_size, size, aliases_size;
|
|
char *p;
|
|
char **alias;
|
|
|
|
switch ((enum nss_lookup_type)cache_mdata) {
|
|
case nss_lt_name:
|
|
name = va_arg(ap, char *);
|
|
break;
|
|
case nss_lt_id:
|
|
num = va_arg(ap, int);
|
|
break;
|
|
case nss_lt_all:
|
|
break;
|
|
default:
|
|
/* should be unreachable */
|
|
return (NS_UNAVAIL);
|
|
}
|
|
|
|
rpc = va_arg(ap, struct rpcent *);
|
|
orig_buf = va_arg(ap, char *);
|
|
orig_buf_size = va_arg(ap, size_t);
|
|
|
|
desired_size = _ALIGNBYTES + sizeof(struct rpcent) + sizeof(char *);
|
|
if (rpc->r_name != NULL)
|
|
desired_size += strlen(rpc->r_name) + 1;
|
|
|
|
if (rpc->r_aliases != NULL) {
|
|
aliases_size = 0;
|
|
for (alias = rpc->r_aliases; *alias; ++alias) {
|
|
desired_size += strlen(*alias) + 1;
|
|
++aliases_size;
|
|
}
|
|
|
|
desired_size += _ALIGNBYTES + (aliases_size + 1) *
|
|
sizeof(char *);
|
|
}
|
|
|
|
if (*buffer_size < desired_size) {
|
|
/* this assignment is here for future use */
|
|
*buffer_size = desired_size;
|
|
return (NS_RETURN);
|
|
}
|
|
|
|
new_rpc = *rpc;
|
|
|
|
*buffer_size = desired_size;
|
|
memset(buffer, 0, desired_size);
|
|
p = buffer + sizeof(struct rpcent) + sizeof(char *);
|
|
memcpy(buffer + sizeof(struct rpcent), &p, sizeof(char *));
|
|
p = (char *)_ALIGN(p);
|
|
|
|
if (new_rpc.r_name != NULL) {
|
|
size = strlen(new_rpc.r_name);
|
|
memcpy(p, new_rpc.r_name, size);
|
|
new_rpc.r_name = p;
|
|
p += size + 1;
|
|
}
|
|
|
|
if (new_rpc.r_aliases != NULL) {
|
|
p = (char *)_ALIGN(p);
|
|
memcpy(p, new_rpc.r_aliases, sizeof(char *) * aliases_size);
|
|
new_rpc.r_aliases = (char **)p;
|
|
p += sizeof(char *) * (aliases_size + 1);
|
|
|
|
for (alias = new_rpc.r_aliases; *alias; ++alias) {
|
|
size = strlen(*alias);
|
|
memcpy(p, *alias, size);
|
|
*alias = p;
|
|
p += size + 1;
|
|
}
|
|
}
|
|
|
|
memcpy(buffer, &new_rpc, sizeof(struct rpcent));
|
|
return (NS_SUCCESS);
|
|
}
|
|
|
|
static int
|
|
rpc_unmarshal_func(char *buffer, size_t buffer_size, void *retval, va_list ap,
|
|
void *cache_mdata)
|
|
{
|
|
char *name;
|
|
int num;
|
|
struct rpcent *rpc;
|
|
char *orig_buf;
|
|
size_t orig_buf_size;
|
|
int *ret_errno;
|
|
|
|
char *p;
|
|
char **alias;
|
|
|
|
switch ((enum nss_lookup_type)cache_mdata) {
|
|
case nss_lt_name:
|
|
name = va_arg(ap, char *);
|
|
break;
|
|
case nss_lt_id:
|
|
num = va_arg(ap, int);
|
|
break;
|
|
case nss_lt_all:
|
|
break;
|
|
default:
|
|
/* should be unreachable */
|
|
return (NS_UNAVAIL);
|
|
}
|
|
|
|
rpc = va_arg(ap, struct rpcent *);
|
|
orig_buf = va_arg(ap, char *);
|
|
orig_buf_size = va_arg(ap, size_t);
|
|
ret_errno = va_arg(ap, int *);
|
|
|
|
if (orig_buf_size <
|
|
buffer_size - sizeof(struct rpcent) - sizeof(char *)) {
|
|
*ret_errno = ERANGE;
|
|
return (NS_RETURN);
|
|
}
|
|
|
|
memcpy(rpc, buffer, sizeof(struct rpcent));
|
|
memcpy(&p, buffer + sizeof(struct rpcent), sizeof(char *));
|
|
|
|
orig_buf = (char *)_ALIGN(orig_buf);
|
|
memcpy(orig_buf, buffer + sizeof(struct rpcent) + sizeof(char *) +
|
|
_ALIGN(p) - (size_t)p,
|
|
buffer_size - sizeof(struct rpcent) - sizeof(char *) -
|
|
_ALIGN(p) + (size_t)p);
|
|
p = (char *)_ALIGN(p);
|
|
|
|
NS_APPLY_OFFSET(rpc->r_name, orig_buf, p, char *);
|
|
if (rpc->r_aliases != NULL) {
|
|
NS_APPLY_OFFSET(rpc->r_aliases, orig_buf, p, char **);
|
|
|
|
for (alias = rpc->r_aliases ; *alias; ++alias)
|
|
NS_APPLY_OFFSET(*alias, orig_buf, p, char *);
|
|
}
|
|
|
|
if (retval != NULL)
|
|
*((struct rpcent **)retval) = rpc;
|
|
|
|
return (NS_SUCCESS);
|
|
}
|
|
|
|
NSS_MP_CACHE_HANDLING(rpc);
|
|
#endif /* NS_CACHING */
|
|
|
|
|
|
/* get**_r functions implementation */
|
|
static int
|
|
getrpcbyname_r(const char *name, struct rpcent *rpc, char *buffer,
|
|
size_t bufsize, struct rpcent **result)
|
|
{
|
|
#ifdef NS_CACHING
|
|
static const nss_cache_info cache_info =
|
|
NS_COMMON_CACHE_INFO_INITIALIZER(
|
|
rpc, (void *)nss_lt_name,
|
|
rpc_id_func, rpc_marshal_func, rpc_unmarshal_func);
|
|
#endif
|
|
static const ns_dtab dtab[] = {
|
|
{ NSSRC_FILES, files_rpcent, (void *)nss_lt_name },
|
|
#ifdef YP
|
|
{ NSSRC_NIS, nis_rpcent, (void *)nss_lt_name },
|
|
#endif
|
|
#ifdef NS_CACHING
|
|
NS_CACHE_CB(&cache_info)
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
int rv, ret_errno;
|
|
|
|
ret_errno = 0;
|
|
*result = NULL;
|
|
rv = nsdispatch(result, dtab, NSDB_RPC, "getrpcbyname_r", defaultsrc,
|
|
name, rpc, buffer, bufsize, &ret_errno);
|
|
|
|
if (rv == NS_SUCCESS)
|
|
return (0);
|
|
else
|
|
return (ret_errno);
|
|
}
|
|
|
|
static int
|
|
getrpcbynumber_r(int number, struct rpcent *rpc, char *buffer,
|
|
size_t bufsize, struct rpcent **result)
|
|
{
|
|
#ifdef NS_CACHING
|
|
static const nss_cache_info cache_info =
|
|
NS_COMMON_CACHE_INFO_INITIALIZER(
|
|
rpc, (void *)nss_lt_id,
|
|
rpc_id_func, rpc_marshal_func, rpc_unmarshal_func);
|
|
#endif
|
|
static const ns_dtab dtab[] = {
|
|
{ NSSRC_FILES, files_rpcent, (void *)nss_lt_id },
|
|
#ifdef YP
|
|
{ NSSRC_NIS, nis_rpcent, (void *)nss_lt_id },
|
|
#endif
|
|
#ifdef NS_CACHING
|
|
NS_CACHE_CB(&cache_info)
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
int rv, ret_errno;
|
|
|
|
ret_errno = 0;
|
|
*result = NULL;
|
|
rv = nsdispatch(result, dtab, NSDB_RPC, "getrpcbynumber_r", defaultsrc,
|
|
number, rpc, buffer, bufsize, &ret_errno);
|
|
|
|
if (rv == NS_SUCCESS)
|
|
return (0);
|
|
else
|
|
return (ret_errno);
|
|
}
|
|
|
|
static int
|
|
getrpcent_r(struct rpcent *rpc, char *buffer, size_t bufsize,
|
|
struct rpcent **result)
|
|
{
|
|
#ifdef NS_CACHING
|
|
static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER(
|
|
rpc, (void *)nss_lt_all,
|
|
rpc_marshal_func, rpc_unmarshal_func);
|
|
#endif
|
|
static const ns_dtab dtab[] = {
|
|
{ NSSRC_FILES, files_rpcent, (void *)nss_lt_all },
|
|
#ifdef YP
|
|
{ NSSRC_NIS, nis_rpcent, (void *)nss_lt_all },
|
|
#endif
|
|
#ifdef NS_CACHING
|
|
NS_CACHE_CB(&cache_info)
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
int rv, ret_errno;
|
|
|
|
ret_errno = 0;
|
|
*result = NULL;
|
|
rv = nsdispatch(result, dtab, NSDB_RPC, "getrpcent_r", defaultsrc,
|
|
rpc, buffer, bufsize, &ret_errno);
|
|
|
|
if (rv == NS_SUCCESS)
|
|
return (0);
|
|
else
|
|
return (ret_errno);
|
|
}
|
|
|
|
/* get** wrappers for get**_r functions implementation */
|
|
static void
|
|
rpcent_endstate(void *p)
|
|
{
|
|
if (p == NULL)
|
|
return;
|
|
|
|
free(((struct rpcent_state *)p)->buffer);
|
|
free(p);
|
|
}
|
|
|
|
static int
|
|
wrap_getrpcbyname_r(union key key, struct rpcent *rpc, char *buffer,
|
|
size_t bufsize, struct rpcent **res)
|
|
{
|
|
return (getrpcbyname_r(key.name, rpc, buffer, bufsize, res));
|
|
}
|
|
|
|
static int
|
|
wrap_getrpcbynumber_r(union key key, struct rpcent *rpc, char *buffer,
|
|
size_t bufsize, struct rpcent **res)
|
|
{
|
|
return (getrpcbynumber_r(key.number, rpc, buffer, bufsize, res));
|
|
}
|
|
|
|
static int
|
|
wrap_getrpcent_r(union key key __unused, struct rpcent *rpc, char *buffer,
|
|
size_t bufsize, struct rpcent **res)
|
|
{
|
|
return (getrpcent_r(rpc, buffer, bufsize, res));
|
|
}
|
|
|
|
static struct rpcent *
|
|
getrpc(int (*fn)(union key, struct rpcent *, char *, size_t, struct rpcent **),
|
|
union key key)
|
|
{
|
|
int rv;
|
|
struct rpcent *res;
|
|
struct rpcent_state * st;
|
|
|
|
rv=rpcent_getstate(&st);
|
|
if (rv != 0) {
|
|
errno = rv;
|
|
return NULL;
|
|
}
|
|
|
|
if (st->buffer == NULL) {
|
|
st->buffer = malloc(RPCENT_STORAGE_INITIAL);
|
|
if (st->buffer == NULL)
|
|
return (NULL);
|
|
st->bufsize = RPCENT_STORAGE_INITIAL;
|
|
}
|
|
do {
|
|
rv = fn(key, &st->rpc, st->buffer, st->bufsize, &res);
|
|
if (res == NULL && rv == ERANGE) {
|
|
free(st->buffer);
|
|
if ((st->bufsize << 1) > RPCENT_STORAGE_MAX) {
|
|
st->buffer = NULL;
|
|
errno = ERANGE;
|
|
return (NULL);
|
|
}
|
|
st->bufsize <<= 1;
|
|
st->buffer = malloc(st->bufsize);
|
|
if (st->buffer == NULL)
|
|
return (NULL);
|
|
}
|
|
} while (res == NULL && rv == ERANGE);
|
|
if (rv != 0)
|
|
errno = rv;
|
|
|
|
return (res);
|
|
}
|
|
|
|
struct rpcent *
|
|
getrpcbyname(char *name)
|
|
{
|
|
union key key;
|
|
|
|
key.name = name;
|
|
|
|
return (getrpc(wrap_getrpcbyname_r, key));
|
|
}
|
|
|
|
struct rpcent *
|
|
getrpcbynumber(int number)
|
|
{
|
|
union key key;
|
|
|
|
key.number = number;
|
|
|
|
return (getrpc(wrap_getrpcbynumber_r, key));
|
|
}
|
|
|
|
struct rpcent *
|
|
getrpcent()
|
|
{
|
|
union key key;
|
|
|
|
key.number = 0; /* not used */
|
|
|
|
return (getrpc(wrap_getrpcent_r, key));
|
|
}
|
|
|
|
void
|
|
setrpcent(int stayopen)
|
|
{
|
|
#ifdef NS_CACHING
|
|
static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER(
|
|
rpc, (void *)nss_lt_all,
|
|
NULL, NULL);
|
|
#endif
|
|
|
|
static const ns_dtab dtab[] = {
|
|
{ NSSRC_FILES, files_setrpcent, (void *)SETRPCENT },
|
|
#ifdef YP
|
|
{ NSSRC_NIS, nis_setrpcent, (void *)SETRPCENT },
|
|
#endif
|
|
#ifdef NS_CACHING
|
|
NS_CACHE_CB(&cache_info)
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
|
|
(void)nsdispatch(NULL, dtab, NSDB_RPC, "setrpcent", defaultsrc,
|
|
stayopen);
|
|
}
|
|
|
|
void
|
|
endrpcent()
|
|
{
|
|
#ifdef NS_CACHING
|
|
static const nss_cache_info cache_info = NS_MP_CACHE_INFO_INITIALIZER(
|
|
rpc, (void *)nss_lt_all,
|
|
NULL, NULL);
|
|
#endif
|
|
|
|
static const ns_dtab dtab[] = {
|
|
{ NSSRC_FILES, files_setrpcent, (void *)ENDRPCENT },
|
|
#ifdef YP
|
|
{ NSSRC_NIS, nis_setrpcent, (void *)ENDRPCENT },
|
|
#endif
|
|
#ifdef NS_CACHING
|
|
NS_CACHE_CB(&cache_info)
|
|
#endif
|
|
{ NULL, NULL, NULL }
|
|
};
|
|
|
|
(void)nsdispatch(NULL, dtab, NSDB_RPC, "endrpcent", defaultsrc);
|
|
}
|