libbb/single_argv.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * Utility routines.
   4  *
   5  * Copyright (C) 2009 Denys Vlasenko
   6  *
   7  * Licensed under GPLv2, see file LICENSE in this source tree.
   8  */
   9 #include "libbb.h"
  10
  11 char** FAST_FUNC skip_dash_dash(char **argv)
  12 {
  13         argv++;
  14         if (argv[0] && argv[0][0] == '-' && argv[0][1] == '-' && argv[0][2] == '\0')
  15                 argv++;
  16         return argv;
  17 }
  18
  19 char* FAST_FUNC single_argv(char **argv)
  20 {
  21         argv = skip_dash_dash(argv);
  22         if (!argv[0] || argv[1])
  23                 bb_show_usage();
  24         return argv[0];
  25 }