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/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.

 *

 * Permission to use, copy, modify, and distribute this software

 * is freely granted, provided that this notice is preserved.

 */

#include <errno.h>

#include <sys/types.h>

#include <string.h>

#include <stdlib.h>

#include <argz.h>

#include <envz.h>

void

_DEFUN (envz_strip, (envz, envz_len),

       char **envz _AND

       size_t *envz_len)

{

  char *entry = 0;

  int len = 0;

  int null_found = 0;

  while((entry = argz_next(*envz, *envz_len, entry)))

    {

      if(!strchr(entry, '='))

        {

          null_found = 1;

          len = strlen(entry) + 1;

          /* Make sure this is not the last entry in envz. If it is, it

           will be chopped off by the realloc anyway.*/

          if(*envz + *envz_len != entry + len - 1)

            {

              memmove(entry, entry + len, *envz + *envz_len - entry - len);

            }

          *envz_len -= len;

        }

    }

  if(null_found)

    {

      *envz = (char *)realloc(*envz, *envz_len);

    }

}