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  }