test-getsubopt.c

   1 /*      $Id: test-getsubopt.c,v 1.3 2014/08/17 20:53:50 schwarze Exp $  */
   2 /*
   3  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #if defined(__linux__) || defined(__MINT__)
  19 #define _GNU_SOURCE /* getsubopt() */
  20 #endif
  21
  22 #include <stdlib.h>
  23
  24 int
  25 main(void)
  26 {
  27         char buf[] = "k=v";
  28         char *options = buf;
  29         char token0[] = "k";
  30         char *const tokens[] = { token0, NULL };
  31         char *value = NULL;
  32         return( ! (0 == getsubopt(&options, tokens, &value)
  33             && value == buf+2 && options == buf+3));
  34 }