errno-list.c revision 11c3a36649e5e5e77db499c92f3cdcbd619efd3a
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <string.h>
#include "errno-list.h"
#include "macro.h"
static const struct errno_name* lookup_errno(register const char *str,
register unsigned int len);
#include "errno-from-name.h"
#include "errno-to-name.h"
const char *errno_to_name(int id) {
if (id < 0)
id = -id;
if (id >= (int) ELEMENTSOF(errno_names))
return NULL;
return errno_names[id];
}
int errno_from_name(const char *name) {
const struct errno_name *sc;
assert(name);
sc = lookup_errno(name, strlen(name));
if (!sc)
return 0;
return sc->id;
}
int errno_max(void) {
return ELEMENTSOF(errno_names);
}