| 1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | */ |
| 7 | |
| 8 | #if defined(LIBC_SCCS) && !defined(lint) |
| 9 | static char sccsid[] = "@(#)getservbyport.c 5.6 (Berkeley) %G%"; |
| 10 | #endif /* LIBC_SCCS and not lint */ |
| 11 | |
| 12 | #include <netdb.h> |
| 13 | |
| 14 | extern int _serv_stayopen; |
| 15 | |
| 16 | struct servent * |
| 17 | getservbyport(port, proto) |
| 18 | int port; |
| 19 | char *proto; |
| 20 | { |
| 21 | register struct servent *p; |
| 22 | |
| 23 | setservent(_serv_stayopen); |
| 24 | while (p = getservent()) { |
| 25 | if (p->s_port != port) |
| 26 | continue; |
| 27 | if (proto == 0 || strcmp(p->s_proto, proto) == 0) |
| 28 | break; |
| 29 | } |
| 30 | if (!_serv_stayopen) |
| 31 | endservent(); |
| 32 | return (p); |
| 33 | } |