src/basic/string-table.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include "string-table.h"
  21 #include "string-util.h"
  22
  23 ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
  24         size_t i;
  25
  26         if (!key)
  27                 return -1;
  28
  29         for (i = 0; i < len; ++i)
  30                 if (streq_ptr(table[i], key))
  31                         return (ssize_t) i;
  32
  33         return -1;
  34 }