support/write_message.c

   1 /* Write a message to standard output.
   2    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <support/support.h>
  20
  21 #include <errno.h>
  22 #include <string.h>
  23 #include <unistd.h>
  24
  25 void
  26 write_message (const char *message)
  27 {
  28   int saved_errno = errno;
  29   ssize_t unused __attribute__ ((unused));
  30   unused = write (STDOUT_FILENO, message, strlen (message));
  31   errno = saved_errno;
  32 }