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/*
Copyright (C) 2009 Andreas Gruenbacher <agruen@suse.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <unistd.h>
#include "misc.h"
#define LINE_SIZE getpagesize()
char *__acl_next_line(FILE *file)
{
static char *line;
static size_t line_size;
char *c;
int eol = 0;
if (!line) {
if (__acl_high_water_alloc((void **)&line, &line_size, LINE_SIZE))
return NULL;
}
c = line;
do {
if (!fgets(c, line_size - (c - line), file))
return NULL;
c = strrchr(c, '\0');
while (c > line && (*(c-1) == '\n' || *(c-1) == '\r')) {
c--;
*c = '\0';
eol = 1;
}
if (feof(file))
break;
if (!eol) {
if (__acl_high_water_alloc((void **)&line, &line_size,
2 * line_size))
return NULL;
c = strrchr(line, '\0');
}
} while (!eol);
return line;
}
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