1 /* $NetBSD: getprotobyname_r.c,v 1.2 2004/03/04 02:30:41 enami Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char sccsid[] = "@(#)getprotoname.c 8.1 (Berkeley) 6/4/93"; 36 #else 37 __RCSID("$NetBSD: getprotobyname_r.c,v 1.2 2004/03/04 02:30:41 enami Exp $"); 38 #endif 39 #endif /* LIBC_SCCS and not lint */ 40 41 #include "namespace.h" 42 43 #include <assert.h> 44 #include <netdb.h> 45 #include <string.h> 46 47 #ifdef __weak_alias 48 __weak_alias(getprotobyname_r,_getprotobyname_r) 49 #endif 50 51 struct protoent * 52 getprotobyname_r(const char *name, struct protoent *pr, 53 struct protoent_data *pd) 54 { 55 struct protoent *p; 56 char **cp; 57 58 _DIAGASSERT(name != NULL); 59 60 setprotoent_r(pd->stayopen, pd); 61 while ((p = getprotoent_r(pr, pd)) != NULL) { 62 if (strcmp(p->p_name, name) == 0) 63 break; 64 for (cp = p->p_aliases; *cp != NULL; cp++) 65 if (strcmp(*cp, name) == 0) 66 goto found; 67 } 68 found: 69 if (!pd->stayopen) 70 if (pd->fp != NULL) { 71 (void)fclose(pd->fp); 72 pd->fp = NULL; 73 } 74 return p; 75 } 76