2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * @(#)getprotoent.c 8.1 (Berkeley) 6/4/93
30 * $DragonFly: src/lib/libc/net/getprotoent.c,v 1.5 2005/11/13 02:04:47 swildner Exp $
33 #include <sys/types.h>
34 #include <sys/socket.h>
42 static FILE *protof = NULL;
43 static char line[BUFSIZ+1];
44 static struct protoent proto;
45 static char *proto_aliases[MAXALIASES];
52 protof = fopen(_PATH_PROTOCOLS, "r" );
74 if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL)
77 if ((p = fgets(line, BUFSIZ, protof)) == NULL)
81 cp = strpbrk(p, "#\n");
86 cp = strpbrk(p, " \t");
90 while (*cp == ' ' || *cp == '\t')
92 p = strpbrk(cp, " \t");
95 proto.p_proto = atoi(cp);
96 q = proto.p_aliases = proto_aliases;
100 if (*cp == ' ' || *cp == '\t') {
104 if (q < &proto_aliases[MAXALIASES - 1])
106 cp = strpbrk(cp, " \t");