Line data    Source code

       1             : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
       2             : 
       3             : /***
       4             :   This file is part of systemd.
       5             : 
       6             :   Copyright 2013 Lennart Poettering
       7             : 
       8             :   systemd is free software; you can redistribute it and/or modify it
       9             :   under the terms of the GNU Lesser General Public License as published by
      10             :   the Free Software Foundation; either version 2.1 of the License, or
      11             :   (at your option) any later version.
      12             : 
      13             :   systemd is distributed in the hope that it will be useful, but
      14             :   WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      16             :   Lesser General Public License for more details.
      17             : 
      18             :   You should have received a copy of the GNU Lesser General Public License
      19             :   along with systemd; If not, see <http://www.gnu.org/licenses/>.
      20             : ***/
      21             : 
      22             : #include <string.h>
      23             : 
      24             : #include "util.h"
      25             : #include "errno-list.h"
      26             : 
      27             : static const struct errno_name* lookup_errno(register const char *str,
      28             :                                                  register unsigned int len);
      29             : 
      30             : #include "errno-to-name.h"
      31             : #include "errno-from-name.h"
      32             : 
      33          83 : const char *errno_to_name(int id) {
      34             : 
      35          83 :         if (id < 0)
      36           0 :                 id = -id;
      37             : 
      38          83 :         if (id >= (int) ELEMENTSOF(errno_names))
      39           1 :                 return NULL;
      40             : 
      41          82 :         return errno_names[id];
      42             : }
      43             : 
      44           7 : int errno_from_name(const char *name) {
      45             :         const struct errno_name *sc;
      46             : 
      47           7 :         assert(name);
      48             : 
      49           7 :         sc = lookup_errno(name, strlen(name));
      50           7 :         if (!sc)
      51           1 :                 return 0;
      52             : 
      53           6 :         return sc->id;
      54             : }
      55             : 
      56           0 : int errno_max(void) {
      57           0 :         return ELEMENTSOF(errno_names);
      58             : }