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blutils.c
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/* blutils.c
* Common routines to handle BlinkenLights movies.
*
* Copyright (C) 2001 Sven Neumann <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include "blutils.h"
char *
bl_fgets (char *s,
int size,
FILE *stream)
{
int i = 0;
int c = 0;
if (!s || size < 2)
return NULL;
while (i < size - 1)
{
c = fgetc (stream);
if (c == EOF || c == '\r')
break;
s[i++] = (char) c;
if (c == '\n')
break;
}
if (c == '\r')
{
c = fgetc (stream);
if (c != '\n' && c != EOF)
ungetc (c, stream);
s[i++] = '\n';
}
if (i)
s[i++] = '\0';
return i > 0 ? s : NULL;
}