1*8a16b7a1SPedro F. Giffuni /*- 2*8a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 3*8a16b7a1SPedro F. Giffuni * 458f0484fSRodney W. Grimes * Copyright (c) 1983, 1993 558f0484fSRodney W. Grimes * The Regents of the University of California. All rights reserved. 658f0484fSRodney W. Grimes * 758f0484fSRodney W. Grimes * Redistribution and use in source and binary forms, with or without 858f0484fSRodney W. Grimes * modification, are permitted provided that the following conditions 958f0484fSRodney W. Grimes * are met: 1058f0484fSRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 1158f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer. 1258f0484fSRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 1358f0484fSRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 1458f0484fSRodney W. Grimes * documentation and/or other materials provided with the distribution. 15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 1658f0484fSRodney W. Grimes * may be used to endorse or promote products derived from this software 1758f0484fSRodney W. Grimes * without specific prior written permission. 1858f0484fSRodney W. Grimes * 1958f0484fSRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2058f0484fSRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2158f0484fSRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2258f0484fSRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2358f0484fSRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2458f0484fSRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2558f0484fSRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2658f0484fSRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2758f0484fSRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2858f0484fSRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2958f0484fSRodney W. Grimes * SUCH DAMAGE. 3058f0484fSRodney W. Grimes */ 3158f0484fSRodney W. Grimes 3258f0484fSRodney W. Grimes #if defined(LIBC_SCCS) && !defined(lint) 3358f0484fSRodney W. Grimes static char sccsid[] = "@(#)getprotoname.c 8.1 (Berkeley) 6/4/93"; 3458f0484fSRodney W. Grimes #endif /* LIBC_SCCS and not lint */ 358fb3f3f6SDavid E. O'Brien #include <sys/cdefs.h> 368fb3f3f6SDavid E. O'Brien __FBSDID("$FreeBSD$"); 3758f0484fSRodney W. Grimes 38225edeacSHajimu UMEMOTO #include <errno.h> 3958f0484fSRodney W. Grimes #include <netdb.h> 4006a99fe3SHajimu UMEMOTO #include <nsswitch.h> 4158f0484fSRodney W. Grimes #include <string.h> 4292b6f7beSHajimu UMEMOTO #include "netdb_private.h" 4306a99fe3SHajimu UMEMOTO #ifdef NS_CACHING 4406a99fe3SHajimu UMEMOTO #include "nscache.h" 4506a99fe3SHajimu UMEMOTO #endif 4606a99fe3SHajimu UMEMOTO #include "nss_tls.h" 4758f0484fSRodney W. Grimes 4806a99fe3SHajimu UMEMOTO static const ns_src defaultsrc[] = { 4906a99fe3SHajimu UMEMOTO { NSSRC_FILES, NS_SUCCESS }, 5006a99fe3SHajimu UMEMOTO { NULL, 0 } 5106a99fe3SHajimu UMEMOTO }; 5206a99fe3SHajimu UMEMOTO 5306a99fe3SHajimu UMEMOTO #ifdef NS_CACHING 5406a99fe3SHajimu UMEMOTO extern int __proto_id_func(char *, size_t *, va_list, void *); 5506a99fe3SHajimu UMEMOTO extern int __proto_marshal_func(char *, size_t *, void *, va_list, void *); 5606a99fe3SHajimu UMEMOTO extern int __proto_unmarshal_func(char *, size_t, void *, va_list, void *); 5706a99fe3SHajimu UMEMOTO #endif 5806a99fe3SHajimu UMEMOTO 5906a99fe3SHajimu UMEMOTO static int 6006a99fe3SHajimu UMEMOTO files_getprotobyname(void *retval, void *mdata, va_list ap) 6158f0484fSRodney W. Grimes { 62d3ac2b30SHajimu UMEMOTO struct protoent pe; 63d3ac2b30SHajimu UMEMOTO struct protoent_data *ped; 648fb3f3f6SDavid E. O'Brien char **cp; 6592b6f7beSHajimu UMEMOTO int error; 6658f0484fSRodney W. Grimes 6706a99fe3SHajimu UMEMOTO char *name; 6806a99fe3SHajimu UMEMOTO struct protoent *pptr; 6906a99fe3SHajimu UMEMOTO char *buffer; 7006a99fe3SHajimu UMEMOTO size_t buflen; 7106a99fe3SHajimu UMEMOTO int *errnop; 7206a99fe3SHajimu UMEMOTO 7306a99fe3SHajimu UMEMOTO name = va_arg(ap, char *); 7406a99fe3SHajimu UMEMOTO pptr = va_arg(ap, struct protoent *); 7506a99fe3SHajimu UMEMOTO buffer = va_arg(ap, char *); 7606a99fe3SHajimu UMEMOTO buflen = va_arg(ap, size_t); 7706a99fe3SHajimu UMEMOTO errnop = va_arg(ap, int *); 7806a99fe3SHajimu UMEMOTO 7906a99fe3SHajimu UMEMOTO 8006a99fe3SHajimu UMEMOTO if ((ped = __protoent_data_init()) == NULL) { 81225edeacSHajimu UMEMOTO *errnop = errno; 8206a99fe3SHajimu UMEMOTO return (NS_NOTFOUND); 8306a99fe3SHajimu UMEMOTO } 84d3ac2b30SHajimu UMEMOTO 85d3ac2b30SHajimu UMEMOTO __setprotoent_p(ped->stayopen, ped); 86d3ac2b30SHajimu UMEMOTO while ((error = __getprotoent_p(&pe, ped)) == 0) { 87d3ac2b30SHajimu UMEMOTO if (strcmp(pe.p_name, name) == 0) 8858f0484fSRodney W. Grimes break; 89d3ac2b30SHajimu UMEMOTO for (cp = pe.p_aliases; *cp != 0; cp++) 9058f0484fSRodney W. Grimes if (strcmp(*cp, name) == 0) 9158f0484fSRodney W. Grimes goto found; 9258f0484fSRodney W. Grimes } 9358f0484fSRodney W. Grimes found: 9492b6f7beSHajimu UMEMOTO if (!ped->stayopen) 95d3ac2b30SHajimu UMEMOTO __endprotoent_p(ped); 9606a99fe3SHajimu UMEMOTO if (error != 0) { 97225edeacSHajimu UMEMOTO *errnop = errno; 9806a99fe3SHajimu UMEMOTO return (NS_NOTFOUND); 9906a99fe3SHajimu UMEMOTO } 10006a99fe3SHajimu UMEMOTO if (__copy_protoent(&pe, pptr, buffer, buflen) != 0) { 101225edeacSHajimu UMEMOTO *errnop = errno; 102225edeacSHajimu UMEMOTO return (NS_RETURN); 10306a99fe3SHajimu UMEMOTO } 10406a99fe3SHajimu UMEMOTO 10506a99fe3SHajimu UMEMOTO *((struct protoent **)retval) = pptr; 10606a99fe3SHajimu UMEMOTO return (NS_SUCCESS); 10706a99fe3SHajimu UMEMOTO } 10806a99fe3SHajimu UMEMOTO 10906a99fe3SHajimu UMEMOTO 11006a99fe3SHajimu UMEMOTO int 11106a99fe3SHajimu UMEMOTO getprotobyname_r(const char *name, struct protoent *pptr, char *buffer, 11206a99fe3SHajimu UMEMOTO size_t buflen, struct protoent **result) 11306a99fe3SHajimu UMEMOTO { 11406a99fe3SHajimu UMEMOTO #ifdef NS_CACHING 11506a99fe3SHajimu UMEMOTO static const nss_cache_info cache_info = 11606a99fe3SHajimu UMEMOTO NS_COMMON_CACHE_INFO_INITIALIZER( 11706a99fe3SHajimu UMEMOTO protocols, (void *)nss_lt_name, 11806a99fe3SHajimu UMEMOTO __proto_id_func, __proto_marshal_func, __proto_unmarshal_func); 11906a99fe3SHajimu UMEMOTO #endif 12006a99fe3SHajimu UMEMOTO static const ns_dtab dtab[] = { 12106a99fe3SHajimu UMEMOTO { NSSRC_FILES, files_getprotobyname, NULL }, 12206a99fe3SHajimu UMEMOTO #ifdef NS_CACHING 12306a99fe3SHajimu UMEMOTO NS_CACHE_CB(&cache_info) 12406a99fe3SHajimu UMEMOTO #endif 12506a99fe3SHajimu UMEMOTO { NULL, NULL, NULL } 12606a99fe3SHajimu UMEMOTO }; 12706a99fe3SHajimu UMEMOTO int rv, ret_errno; 12806a99fe3SHajimu UMEMOTO 12906a99fe3SHajimu UMEMOTO ret_errno = 0; 13006a99fe3SHajimu UMEMOTO *result = NULL; 13106a99fe3SHajimu UMEMOTO rv = nsdispatch(result, dtab, NSDB_PROTOCOLS, "getprotobyname_r", 13206a99fe3SHajimu UMEMOTO defaultsrc, name, pptr, buffer, buflen, &ret_errno); 13306a99fe3SHajimu UMEMOTO 134225edeacSHajimu UMEMOTO if (rv != NS_SUCCESS) { 135225edeacSHajimu UMEMOTO errno = ret_errno; 136c618a856SHajimu UMEMOTO return (ret_errno); 137225edeacSHajimu UMEMOTO } 138d3ac2b30SHajimu UMEMOTO return (0); 13992b6f7beSHajimu UMEMOTO } 14092b6f7beSHajimu UMEMOTO 14192b6f7beSHajimu UMEMOTO struct protoent * 14292b6f7beSHajimu UMEMOTO getprotobyname(const char *name) 14392b6f7beSHajimu UMEMOTO { 14492b6f7beSHajimu UMEMOTO struct protodata *pd; 145d3ac2b30SHajimu UMEMOTO struct protoent *rval; 14692b6f7beSHajimu UMEMOTO 14792b6f7beSHajimu UMEMOTO if ((pd = __protodata_init()) == NULL) 14892b6f7beSHajimu UMEMOTO return (NULL); 149d3ac2b30SHajimu UMEMOTO if (getprotobyname_r(name, &pd->proto, pd->data, sizeof(pd->data), 150d3ac2b30SHajimu UMEMOTO &rval) != 0) 15192b6f7beSHajimu UMEMOTO return (NULL); 152d3ac2b30SHajimu UMEMOTO return (rval); 15358f0484fSRodney W. Grimes } 154