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/* $Id: fgetln.c,v 1.1.1.1 2002/12/20 18:13:59 schmonz Exp $ */
/*
* Copyright 1999 Luke Mewburn <lukem@netbsd.org>.
* 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. 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef HAVE_FGETLN
#ifdef HAVE_ERR_H
#include <err.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <unistd.h>
#define BUFCHUNKS BUFSIZ
char *
fgetln(FILE *fp, size_t *len)
{
static char *buf;
static size_t bufsize;
size_t buflen;
char curbuf[BUFCHUNKS];
char *p;
if (buf == NULL) {
bufsize = BUFCHUNKS;
buf = (char *)malloc(bufsize);
if (buf == NULL)
err(1, "Unable to allocate buffer for fgetln()");
}
*buf = '\0';
buflen = 0;
while ((p = fgets(curbuf, sizeof(curbuf), fp)) != NULL) {
size_t l;
l = strlen(p);
if (bufsize < buflen + l) {
bufsize += BUFCHUNKS;
if ((buf = (char *)realloc(buf, bufsize)) == NULL)
err(1, "Unable to allocate %ld bytes of memory",
(long)bufsize);
}
strcpy(buf + buflen, p);
buflen += l;
if (p[l - 1] == '\n')
break;
}
if (p == NULL && *buf == '\0')
return (NULL);
*len = strlen(buf);
return (buf);
}
#endif
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