1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that this notice is preserved and that due credit is given 7 * to the University of California at Berkeley. The name of the University 8 * may not be used to endorse or promote products derived from this 9 * software without specific prior written permission. This software 10 * is provided ``as is'' without express or implied warranty. 11 */ 12 13 #if defined(LIBC_SCCS) && !defined(lint) 14 static char sccsid[] = "@(#)getprotoname.c 5.4 (Berkeley) 03/07/88"; 15 #endif /* LIBC_SCCS and not lint */ 16 17 #include <netdb.h> 18 19 extern int _proto_stayopen; 20 21 struct protoent * 22 getprotobyname(name) 23 register char *name; 24 { 25 register struct protoent *p; 26 register char **cp; 27 28 setprotoent(_proto_stayopen); 29 while (p = getprotoent()) { 30 if (strcmp(p->p_name, name) == 0) 31 break; 32 for (cp = p->p_aliases; *cp != 0; cp++) 33 if (strcmp(*cp, name) == 0) 34 goto found; 35 } 36 found: 37 if (!_proto_stayopen) 38 endprotoent(); 39 return (p); 40 } 41