4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (c) 1983, 1993
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * The Regents of the University of California. All rights reserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Redistribution and use in source and binary forms, with or without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * modification, are permitted provided that the following conditions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * are met:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 1. Redistributions of source code must retain the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 2. Redistributions in binary form must reproduce the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * documentation and/or other materials provided with the distribution.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 3. All advertising materials mentioning features or use of this software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * must display the following acknowledgement:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This product includes software developed by the University of
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * California, Berkeley and its contributors.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 4. Neither the name of the University nor the names of its contributors
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * may be used to endorse or promote products derived from this software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * without specific prior written permission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * SUCH DAMAGE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if defined(LIBC_SCCS) && !defined(lint)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic char sccsid[] = "@(#)getprotoent.c 8.1 (Berkeley) 6/4/93";
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif /* LIBC_SCCS and not lint */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <sys/types.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <sys/socket.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <netdb.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdio.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdlib.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <string.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define MAXALIASES 35
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic FILE *protof = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic char line[BUFSIZ+1];
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic struct protoent proto;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic char *proto_aliases[MAXALIASES];
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncint _proto_stayopen;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncvoid
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncsetprotoent(int f)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (protof == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync protof = fopen(_PATH_PROTOCOLS, "r" );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync rewind(protof);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _proto_stayopen |= f;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncvoid
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncendprotoent()
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (protof) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fclose(protof);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync protof = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _proto_stayopen = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstruct protoent *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncgetprotoent()
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync char *p;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync register char *cp, **q;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncagain:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((p = fgets(line, BUFSIZ, protof)) == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*p == '#')
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto again;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp = strpbrk(p, "#\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (cp == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto again;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *cp = '\0';
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync proto.p_name = p;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp = strpbrk(p, " \t");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (cp == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto again;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *cp++ = '\0';
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while (*cp == ' ' || *cp == '\t')
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync p = strpbrk(cp, " \t");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (p != NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *p++ = '\0';
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync proto.p_proto = atoi(cp);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync q = proto.p_aliases = proto_aliases;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (p != NULL) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp = p;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while (cp && *cp) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*cp == ' ' || *cp == '\t') {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync continue;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (q < &proto_aliases[MAXALIASES - 1])
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *q++ = cp;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cp = strpbrk(cp, " \t");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (cp != NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *cp++ = '\0';
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *q = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (&proto);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}