120253Sjoerg/*-
220302Sjoerg * Copyright (C) 1996
320302Sjoerg *	David L. Nugent.  All rights reserved.
420253Sjoerg *
520253Sjoerg * Redistribution and use in source and binary forms, with or without
620253Sjoerg * modification, are permitted provided that the following conditions
720253Sjoerg * are met:
820253Sjoerg * 1. Redistributions of source code must retain the above copyright
920302Sjoerg *    notice, this list of conditions and the following disclaimer.
1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright
1120253Sjoerg *    notice, this list of conditions and the following disclaimer in the
1220253Sjoerg *    documentation and/or other materials provided with the distribution.
1320253Sjoerg *
1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1720302Sjoerg * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2420253Sjoerg * SUCH DAMAGE.
2520253Sjoerg */
2620253Sjoerg
2730259Scharnier#ifndef lint
2830259Scharnierstatic const char rcsid[] =
2950479Speter  "$FreeBSD$";
3030259Scharnier#endif /* not lint */
3130259Scharnier
3220253Sjoerg#include <stdio.h>
3320253Sjoerg#include <fcntl.h>
3420253Sjoerg#include <stdlib.h>
3520253Sjoerg#include <string.h>
3620253Sjoerg#include <sys/types.h>
3720253Sjoerg#include <sys/stat.h>
3820253Sjoerg#include <sys/param.h>
3920253Sjoerg#include <errno.h>
4020253Sjoerg#include <unistd.h>
4120253Sjoerg
4220253Sjoerg#include "pwupd.h"
4320253Sjoerg
4420253Sjoergint
4520747Sdavidnextendline(char **buf, int * buflen, int needed)
4620747Sdavidn{
4720747Sdavidn	if (needed > *buflen) {
4820747Sdavidn		char	*tmp = realloc(*buf, needed);
4920747Sdavidn		if (tmp == NULL)
5020747Sdavidn			return -1;
5120747Sdavidn		*buf = tmp;
5220747Sdavidn		*buflen = needed;
5320747Sdavidn	}
5420747Sdavidn	return *buflen;
5520747Sdavidn}
5620747Sdavidn
5720747Sdavidnint
5820747Sdavidnextendarray(char ***buf, int * buflen, int needed)
5920747Sdavidn{
6020747Sdavidn	if (needed > *buflen) {
6120747Sdavidn		char	**tmp = realloc(*buf, needed * sizeof(char *));
6220747Sdavidn		if (tmp == NULL)
6320747Sdavidn			return -1;
6420747Sdavidn		*buf = tmp;
6520747Sdavidn		*buflen = needed;
6620747Sdavidn	}
6720747Sdavidn	return *buflen;
6820747Sdavidn}
69