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Annotation of 43BSDTahoe/lib/libc/net/getservbyport.c, revision 1.1.1.1

1.1       root        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 the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #if defined(LIBC_SCCS) && !defined(lint)
                     19: static char sccsid[] = "@(#)getservbyport.c    5.5 (Berkeley) 6/27/88";
                     20: #endif /* LIBC_SCCS and not lint */
                     21: 
                     22: #include <netdb.h>
                     23: 
                     24: extern int _serv_stayopen;
                     25: 
                     26: struct servent *
                     27: getservbyport(port, proto)
                     28:        int port;
                     29:        char *proto;
                     30: {
                     31:        register struct servent *p;
                     32: 
                     33:        setservent(_serv_stayopen);
                     34:        while (p = getservent()) {
                     35:                if (p->s_port != port)
                     36:                        continue;
                     37:                if (proto == 0 || strcmp(p->s_proto, proto) == 0)
                     38:                        break;
                     39:        }
                     40:        if (!_serv_stayopen)
                     41:                endservent();
                     42:        return (p);
                     43: }

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