sortix-mirror/libc/string/strerror_r.cpp

38 lines
1.3 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
This file is part of the Sortix C Library.
The Sortix 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 3 of the License, or (at your
option) any later version.
The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
string/strerror_r.cpp
Convert error code to a string.
*******************************************************************************/
#include <errno.h>
#include <string.h>
extern "C" int strerror_r(int errnum, char* dest, size_t dest_len)
{
const char* msg = sortix_strerror(errnum);
if ( !msg )
return -1;
if ( dest_len < strlen(msg) + 1 )
return errno = ERANGE;
strcpy(dest, msg);
return 0;
}