/* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and that due credit is given * to the University of California at Berkeley. The name of the University * may not be used to endorse or promote products derived from this * software without specific prior written permission. This software * is provided ``as is'' without express or implied warranty. */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)getproto.c 5.4 (Berkeley) 03/07/88"; #endif /* LIBC_SCCS and not lint */ #include extern int _proto_stayopen; struct protoent * getprotobynumber(proto) register int proto; { register struct protoent *p; setprotoent(_proto_stayopen); while (p = getprotoent()) if (p->p_proto == proto) break; if (!_proto_stayopen) endprotoent(); return (p); }