newlib/libc/argz/argz_extract.c

   1 /* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
   2  *
   3  * Permission to use, copy, modify, and distribute this software
   4  * is freely granted, provided that this notice is preserved.
   5  */
   6
   7 #include <stddef.h>
   8 #include <argz.h>
   9 #include <sys/types.h>
  10
  11 void
  12 argz_extract (char *argz,
  13        size_t argz_len,
  14        char **argv)
  15 {
  16   size_t i = 0;
  17   int j = 0;
  18   const size_t count = argz_count(argz, argz_len);
  19
  20   if (argz_len > 1)
  21     for (i = argz_len - 2; i > 0; i--)
  22       {
  23         if (argz[i] == '\0')
  24           {
  25             j++;
  26             argv[count - j] = &argz[i + 1];
  27           }
  28       }
  29   argv[0] = &argz[0];
  30   argv[count] = NULL;
  31 }