reactos/lib/sdk/crt/stdio/fgets.c

   1 /* $Id$
   2  *
   3  *  ReactOS msvcrt library
   4  *
   5  *  fgets.c
   6  *
   7  *  Copyright (C) 2002  Robert Dickenson <robd@reactos.org>
   8  *
   9  *  Based on original work Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details
  10  *                         28/12/1998: Appropriated for Reactos
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  25  */
  26 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
  27 #include <precomp.h>
  28
  29 char* fgets(char* s, int n, FILE* f)
  30 {
  31   int c = 0;
  32   char* cs;
  33
  34   cs = s;
  35   while (--n>0 && (c = getc(f)) != EOF) {
  36     *cs++ = c;
  37     if (c == '\n')
  38       break;
  39   }
  40   if (c == EOF && cs == s)
  41     return NULL;
  42   *cs++ = '\0';
  43   return s;
  44 }