/* Iterate through the elements of an argz block.

   Copyright (C) 1995-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Written by Miles Bader <miles@gnu.org>

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <argz.h>

#include <string.h>

char *

__argz_next (const char *argz, size_t argz_len, const char *entry)

{

  if (entry)

    {

      if (entry < argz + argz_len)

	entry = strchr (entry, '\0') + 1;

      return entry >= argz + argz_len ? NULL : (char *) entry;

    }

  else

    if (argz_len > 0)

      return (char *) argz;

    else

      return NULL;

}

libc_hidden_def (__argz_next)

weak_alias (__argz_next, argz_next)

libc_hidden_weak (argz_next)