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 2014 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 "cap-list.h"
      26             : #include "missing.h"
      27             : 
      28             : static const struct capability_name* lookup_capability(register const char *str, register unsigned int len);
      29             : 
      30             : #include "cap-to-name.h"
      31             : #include "cap-from-name.h"
      32             : 
      33         306 : const char *capability_to_name(int id) {
      34             : 
      35         306 :         if (id < 0)
      36           1 :                 return NULL;
      37             : 
      38         305 :         if (id >= (int) ELEMENTSOF(capability_names))
      39           1 :                 return NULL;
      40             : 
      41         304 :         return capability_names[id];
      42             : }
      43             : 
      44          45 : int capability_from_name(const char *name) {
      45             :         const struct capability_name *sc;
      46             :         int r, i;
      47             : 
      48          45 :         assert(name);
      49             : 
      50             :         /* Try to parse numeric capability */
      51          45 :         r = safe_atoi(name, &i);
      52          45 :         if (r >= 0 && i >= 0)
      53           2 :                 return i;
      54             : 
      55             :         /* Try to parse string capability */
      56          43 :         sc = lookup_capability(name, strlen(name));
      57          43 :         if (!sc)
      58           2 :                 return -EINVAL;
      59             : 
      60          41 :         return sc->id;
      61             : }
      62             : 
      63          79 : int capability_list_length(void) {
      64          79 :         return (int) ELEMENTSOF(capability_names);
      65             : }