11573Srgrimes/* 21573Srgrimes * Copyright (c) 1983, 1993 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * Redistribution and use in source and binary forms, with or without 61573Srgrimes * modification, are permitted provided that the following conditions 71573Srgrimes * are met: 81573Srgrimes * 1. Redistributions of source code must retain the above copyright 91573Srgrimes * notice, this list of conditions and the following disclaimer. 101573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111573Srgrimes * notice, this list of conditions and the following disclaimer in the 121573Srgrimes * documentation and/or other materials provided with the distribution. 131573Srgrimes * 4. Neither the name of the University nor the names of its contributors 141573Srgrimes * may be used to endorse or promote products derived from this software 151573Srgrimes * without specific prior written permission. 161573Srgrimes * 171573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271573Srgrimes * SUCH DAMAGE. 281573Srgrimes */ 291573Srgrimes 301573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 311573Srgrimesstatic char sccsid[] = "@(#)getprotoname.c 8.1 (Berkeley) 6/4/93"; 321573Srgrimes#endif /* LIBC_SCCS and not lint */ 3392889Sobrien#include <sys/cdefs.h> 3492889Sobrien__FBSDID("$FreeBSD$"); 351573Srgrimes 36211276Sume#include <errno.h> 371573Srgrimes#include <netdb.h> 38158115Sume#include <nsswitch.h> 391573Srgrimes#include <string.h> 40145279Sume#include "netdb_private.h" 41158115Sume#ifdef NS_CACHING 42158115Sume#include "nscache.h" 43158115Sume#endif 44158115Sume#include "nss_tls.h" 451573Srgrimes 46158115Sumestatic const ns_src defaultsrc[] = { 47158115Sume { NSSRC_FILES, NS_SUCCESS }, 48158115Sume { NULL, 0 } 49158115Sume}; 50158115Sume 51158115Sume#ifdef NS_CACHING 52158115Sumeextern int __proto_id_func(char *, size_t *, va_list, void *); 53158115Sumeextern int __proto_marshal_func(char *, size_t *, void *, va_list, void *); 54158115Sumeextern int __proto_unmarshal_func(char *, size_t, void *, va_list, void *); 55158115Sume#endif 56158115Sume 57158115Sumestatic int 58158115Sumefiles_getprotobyname(void *retval, void *mdata, va_list ap) 591573Srgrimes{ 60157779Sume struct protoent pe; 61157779Sume struct protoent_data *ped; 6292889Sobrien char **cp; 63145279Sume int error; 641573Srgrimes 65158115Sume char *name; 66158115Sume struct protoent *pptr; 67158115Sume char *buffer; 68158115Sume size_t buflen; 69158115Sume int *errnop; 70157779Sume 71158115Sume name = va_arg(ap, char *); 72158115Sume pptr = va_arg(ap, struct protoent *); 73158115Sume buffer = va_arg(ap, char *); 74158115Sume buflen = va_arg(ap, size_t); 75158115Sume errnop = va_arg(ap, int *); 76158115Sume 77158115Sume 78158115Sume if ((ped = __protoent_data_init()) == NULL) { 79211276Sume *errnop = errno; 80158115Sume return (NS_NOTFOUND); 81158115Sume } 82158115Sume 83157779Sume __setprotoent_p(ped->stayopen, ped); 84157779Sume while ((error = __getprotoent_p(&pe, ped)) == 0) { 85157779Sume if (strcmp(pe.p_name, name) == 0) 861573Srgrimes break; 87157779Sume for (cp = pe.p_aliases; *cp != 0; cp++) 881573Srgrimes if (strcmp(*cp, name) == 0) 891573Srgrimes goto found; 901573Srgrimes } 911573Srgrimesfound: 92145279Sume if (!ped->stayopen) 93157779Sume __endprotoent_p(ped); 94158115Sume if (error != 0) { 95211276Sume *errnop = errno; 96158115Sume return (NS_NOTFOUND); 97158115Sume } 98158115Sume if (__copy_protoent(&pe, pptr, buffer, buflen) != 0) { 99211276Sume *errnop = errno; 100211276Sume return (NS_RETURN); 101158115Sume } 102158115Sume 103158115Sume *((struct protoent **)retval) = pptr; 104158115Sume return (NS_SUCCESS); 1051573Srgrimes} 106145279Sume 107158115Sume 108158115Sumeint 109158115Sumegetprotobyname_r(const char *name, struct protoent *pptr, char *buffer, 110158115Sume size_t buflen, struct protoent **result) 111158115Sume{ 112158115Sume#ifdef NS_CACHING 113158115Sume static const nss_cache_info cache_info = 114158115Sume NS_COMMON_CACHE_INFO_INITIALIZER( 115158115Sume protocols, (void *)nss_lt_name, 116158115Sume __proto_id_func, __proto_marshal_func, __proto_unmarshal_func); 117158115Sume#endif 118158115Sume static const ns_dtab dtab[] = { 119158115Sume { NSSRC_FILES, files_getprotobyname, NULL }, 120158115Sume#ifdef NS_CACHING 121158115Sume NS_CACHE_CB(&cache_info) 122158115Sume#endif 123158115Sume { NULL, NULL, NULL } 124158115Sume }; 125158115Sume int rv, ret_errno; 126158115Sume 127158115Sume ret_errno = 0; 128158115Sume *result = NULL; 129158115Sume rv = nsdispatch(result, dtab, NSDB_PROTOCOLS, "getprotobyname_r", 130158115Sume defaultsrc, name, pptr, buffer, buflen, &ret_errno); 131158115Sume 132211276Sume if (rv != NS_SUCCESS) { 133211276Sume errno = ret_errno; 134213453Sume return (ret_errno); 135211276Sume } 136211276Sume return (0); 137158115Sume} 138158115Sume 139145279Sumestruct protoent * 140145279Sumegetprotobyname(const char *name) 141145279Sume{ 142145279Sume struct protodata *pd; 143157779Sume struct protoent *rval; 144145279Sume 145145279Sume if ((pd = __protodata_init()) == NULL) 146145279Sume return (NULL); 147157779Sume if (getprotobyname_r(name, &pd->proto, pd->data, sizeof(pd->data), 148157779Sume &rval) != 0) 149145279Sume return (NULL); 150157779Sume return (rval); 151145279Sume} 152