NetBSD/usr.sbin/ypserv/stdhosts/stdhosts.c

114 lines
3.1 KiB
C

/* $NetBSD: stdhosts.c,v 1.10 1999/01/17 07:01:26 lukem Exp $ */
/*
* Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mats O Jansson
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: stdhosts.c,v 1.10 1999/01/17 07:01:26 lukem Exp $");
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <err.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <util.h>
#include "protos.h"
int main __P((int, char *[]));
void usage __P((void));
extern char *__progname; /* from crt0.o */
int
main(argc, argv)
int argc;
char *argv[];
{
struct in_addr host_addr;
FILE *data_file;
size_t line_no;
size_t len;
char *k, *v, *addr_string, *fname;
addr_string = NULL; /* XXX gcc -Wuninitialized */
if (argc > 2)
usage();
if (argc == 2) {
fname = argv[1];
data_file = fopen(fname, "r");
if (data_file == NULL)
err(1, "%s", fname);
} else {
fname = "<stdin>";
data_file = stdin;
}
line_no = 0;
for (;
(v = fparseln(data_file, &len, &line_no, NULL, FPARSELN_UNESCALL));
free(v)) {
if (len == 0)
continue;
for (k = v; *v && !isspace(*v); v++)
;
while (*v && isspace(*v))
*v++ = '\0';
if (inet_aton(k, &host_addr) == 0 ||
(addr_string = inet_ntoa(host_addr)) == NULL) {
warnx("%s line %lu: syntax error", fname,
(unsigned long)line_no);
} else
printf("%s %s\n", addr_string, v);
}
exit(0);
}
void
usage()
{
fprintf(stderr, "usage: %s [file]\n", __progname);
exit(1);
}