/*

 * 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;

}