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113 lines
3.2 KiB
113 lines
3.2 KiB
/* $Id: getservent.c,v 1.1.1.1 2006/09/14 01:59:06 root Exp $ */
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/*
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* Copyright (c) 2000-2002 Opsycon AB (www.opsycon.se)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Opsycon AB.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/endian.h>
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struct servtab {
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const char *name;
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const char *alias;
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short port;
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short proto;
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};
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#define TCP 0
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#define UDP 1
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static const struct servtab servtab[] = {
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{"echo", 0, 7, TCP},
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{"echo", 0, 7, UDP},
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{"discard", "sink", 9, TCP},
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{"discard", "sink", 9, UDP},
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{"daytime", 0, 13, TCP},
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{"daytime", 0, 13, UDP},
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{"ftp", 0, 21, TCP},
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{"telnet", 0, 23, TCP},
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{"time", 0, 37, TCP},
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{"time", 0, 37, UDP},
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{"bootps", 0, 67, UDP},
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{"bootpc", 0, 68, UDP},
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{"tftp", 0, 69, UDP},
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{"sunrpc", 0, 111, TCP},
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{"sunrpc", 0, 111, UDP},
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/* Unix specials */
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{"exec", 0, 512, TCP},
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{"login", 0, 513, TCP},
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{"shell", "cmd", 514, TCP},
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{"talk", 0, 518, UDP},
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{"bfs", 0, 2201, UDP}, /* MIPS boot file server */
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{"gdb", "rdbg", 2202, UDP}, /* GDB remote debugging */
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{0}
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};
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static int servidx;
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int _serv_stayopen;
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void setservent(x)
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{
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servidx = 0;
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}
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void endservent()
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{
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servidx = -1;
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}
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struct servent *
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getservent()
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{
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static struct servent sv;
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static char *aliases[2];
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const struct servtab *st;
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if (servidx < 0)
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return (0);
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st = &servtab[servidx];
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if (!st->name)
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return (0);
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sv.s_name = (char *)st->name;
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aliases[0] = (char *)st->alias; aliases[1] = 0;
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sv.s_aliases = aliases;
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sv.s_port = htons(st->port);
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sv.s_proto = (st->proto == TCP) ? "tcp" : "udp";
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servidx++;
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return (&sv);
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}
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