1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 #if defined(LIBC_SCCS) && !defined(lint) 34 static char sccsid[] = "@(#)getservbyname.c 8.1 (Berkeley) 6/4/93"; 35 #endif /* LIBC_SCCS and not lint */ 36 37 #include <netdb.h> 38 #include <string.h> 39 40 extern int _serv_stayopen; 41 42 struct servent * 43 getservbyname(IN const char *name, IN const char *proto) 44 { 45 register struct servent *p; 46 register char **cp; 47 48 #ifdef YP 49 extern char *___getservbyname_yp; 50 extern char *___getservbyproto_yp; 51 52 ___getservbyname_yp = (char *)name; 53 ___getservbyproto_yp = (char *)proto; 54 #endif 55 56 setservent(_serv_stayopen); 57 while ( NULL != (p = getservent()) ) { 58 if (strcmp(name, p->s_name) == 0) 59 goto gotname; 60 for (cp = p->s_aliases; *cp; cp++) 61 if (strcmp(name, *cp) == 0) 62 goto gotname; 63 continue; 64 gotname: 65 if (proto == 0 || strcmp(p->s_proto, proto) == 0) 66 break; 67 } 68 if (!_serv_stayopen) 69 endservent(); 70 71 #ifdef YP 72 ___getservbyname_yp = NULL; 73 ___getservbyproto_yp = NULL; 74 #endif 75 76 return (p); 77 } 78
