gstreamer/libs/gst/check/libcheck/libcompat/getline.c

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/*
* Check: a unit test framework for C
* Copyright (C) 2001, 2002 Arien Malec
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include "libcompat.h"
#include <stdio.h>
#define INITIAL_SIZE 16
#define DELIMITER '\n'
ssize_t
getline (char **lineptr, size_t * n, FILE * stream)
{
ssize_t written = 0;
int character;
if (*lineptr == NULL || *n < INITIAL_SIZE) {
free (*lineptr);
*lineptr = (char *) malloc (INITIAL_SIZE);
*n = INITIAL_SIZE;
}
while ((character = fgetc (stream)) != EOF) {
written += 1;
if (written >= *n) {
*n = *n * 2;
*lineptr = realloc (*lineptr, *n);
}
(*lineptr)[written - 1] = character;
if (character == DELIMITER) {
break;
}
}
(*lineptr)[written] = '\0';
return written;
}