1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 #if defined(LIBC_SCCS) && !defined(lint) 8 static char sccsid[] = "@(#)getservbyport.c 5.3 (Berkeley) 05/19/86"; 9 #endif LIBC_SCCS and not lint 10 11 #include <netdb.h> 12 13 extern int _serv_stayopen; 14 15 struct servent * 16 getservbyport(port, proto) 17 int port; 18 char *proto; 19 { 20 register struct servent *p; 21 22 setservent(_serv_stayopen); 23 while (p = getservent()) { 24 if (p->s_port != port) 25 continue; 26 if (proto == 0 || strcmp(p->s_proto, proto) == 0) 27 break; 28 } 29 if (!_serv_stayopen) 30 endservent(); 31 return (p); 32 } 33