glibc/string/_strerror.c

38 lines
1.2 KiB
C

/* Copyright (C) 1991-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <string.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
/* Return a string describing the errno code in ERRNUM. */
char *
__strerror_r (int errnum, char *buf, size_t buflen)
{
char *err = (char *) __get_errlist (errnum);
if (__glibc_unlikely (err == NULL))
{
__snprintf (buf, buflen, "%s%d", _("Unknown error "), errnum);
return buf;
}
return _(err);
}
weak_alias (__strerror_r, strerror_r)
libc_hidden_def (__strerror_r)