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/* Print a message describing error code.
Copyright (C) 2008-2020 Free Software Foundation, Inc.
Written by Bruno Haible and Simon Josefsson.
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 3 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, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "strerror-override.h"
/* Use the system functions, not the gnulib overrides in this file. */
#undef fprintf
void
perror (const char *string)
{
char stackbuf[STACKBUF_LEN];
int ret;
/* Our implementation guarantees that this will be a non-empty
string, even if it returns EINVAL; and stackbuf should be sized
large enough to avoid ERANGE. */
ret = strerror_r (errno, stackbuf, sizeof stackbuf);
if (ret == ERANGE)
abort ();
if (string != NULL && *string != '\0')
fprintf (stderr, "%s: %s\n", string, stackbuf);
else
fprintf (stderr, "%s\n", stackbuf);
}
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