/* Copyright (C) 1996-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.

   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 <errno.h>

#include <stdlib.h>

#include <string.h>

error_t

__argz_add_sep (char **argz, size_t *argz_len, const char *string, int delim)

{

  size_t nlen = strlen (string) + 1;

  if (nlen > 1)

    {

      const char *rp;

      char *wp;

      *argz = (char *) realloc (*argz, *argz_len + nlen);

      if (*argz == NULL)

	return ENOMEM;

      wp = *argz + *argz_len;

      rp = string;

      do

	if (*rp == delim)

	  {

	    if (wp > *argz && wp[-1] != '\0')

	      *wp++ = '\0';

	    else

	      --nlen;

	  }

	else

	  *wp++ = *rp;

      while (*rp++ != '\0');

      *argz_len += nlen;

    }

  return 0;

}

weak_alias (__argz_add_sep, argz_add_sep)