stdio-common/tstgetln.c

   1 /* Copyright (C) 1992-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stdio.h>
  19
  20 int
  21 main (int argc, char *argv[])
  22 {
  23   char *buf = NULL;
  24   size_t size = 0;
  25   ssize_t len;
  26
  27   while ((len = getline (&buf, &size, stdin)) != -1)
  28     {
  29       printf ("bufsize %Zu; read %Zd: ", size, len);
  30       if (fwrite (buf, len, 1, stdout) != 1)
  31         {
  32           perror ("fwrite");
  33           return 1;
  34         }
  35     }
  36
  37   if (ferror (stdin))
  38     {
  39       perror ("getline");
  40       return 1;
  41     }
  42
  43   return 0;
  44 }