/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of the University 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 REGENTS 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 REGENTS 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. */ #include <errno.h> #include <netdb.h> #include <nsswitch.h> #include "netdb_private.h" #ifdef NS_CACHING #include "nscache.h" #endif #include "nss_tls.h" static const ns_src defaultsrc[] = { { NSSRC_FILES, NS_SUCCESS }, { NULL, 0 } }; static int files_getprotobynumber(void *retval, void *mdata, va_list ap) { struct protoent pe; struct protoent_data *ped; int error; int number; struct protoent *pptr; char *buffer; size_t buflen; int *errnop; number = va_arg(ap, int); pptr = va_arg(ap, struct protoent *); buffer = va_arg(ap, char *); buflen = va_arg(ap, size_t); errnop = va_arg(ap, int *); if ((ped = __protoent_data_init()) == NULL) { *errnop = errno; return (NS_NOTFOUND); } __setprotoent_p(ped->stayopen, ped); while ((error = __getprotoent_p(&pe, ped)) == 0) if (pe.p_proto == number) break; if (!ped->stayopen) __endprotoent_p(ped); if (error != 0) { *errnop = errno; return (NS_NOTFOUND); } if (__copy_protoent(&pe, pptr, buffer, buflen) != 0) { *errnop = errno; return (NS_RETURN); } *((struct protoent **)retval) = pptr; return (NS_SUCCESS); } int getprotobynumber_r(int proto, struct protoent *pptr, char *buffer, size_t buflen, struct protoent **result) { #ifdef NS_CACHING static const nss_cache_info cache_info = NS_COMMON_CACHE_INFO_INITIALIZER( protocols, (void *)nss_lt_id, __proto_id_func, __proto_marshal_func, __proto_unmarshal_func); #endif static const ns_dtab dtab[] = { { NSSRC_FILES, files_getprotobynumber, NULL }, #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_PROTOCOLS, "getprotobynumber_r", defaultsrc, proto, pptr, buffer, buflen, &ret_errno); if (rv != NS_SUCCESS) { errno = ret_errno; return (ret_errno); } return (0); } struct protoent * getprotobynumber(int proto) { struct protodata *pd; struct protoent *rval; if ((pd = __protodata_init()) == NULL) return (NULL); if (getprotobynumber_r(proto, &pd->proto, pd->data, sizeof(pd->data), &rval) != 0) return (NULL); return (rval); }