/* Routines for dealing with '\0' separated arg vectors.

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

   This file is part of the GNU C Library.

   Written by Miles Bader <miles@gnu.ai.mit.edu>

   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>

#include <stdlib.h>

/* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN.  */

error_t

__argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len)

{

  size_t new_argz_len = *argz_len + buf_len;

  char *new_argz = realloc (*argz, new_argz_len);

  if (new_argz)

    {

      memcpy (new_argz + *argz_len, buf, buf_len);

      *argz = new_argz;

      *argz_len = new_argz_len;

      return 0;

    }

  else

    return ENOMEM;

}

weak_alias (__argz_append, argz_append)

/* Add STR to the argz vector in ARGZ & ARGZ_LEN.  This should be moved into

   argz.c in libshouldbelibc.  */

error_t

__argz_add (char **argz, size_t *argz_len, const char *str)

{

  return __argz_append (argz, argz_len, str, strlen (str) + 1);

}

weak_alias (__argz_add, argz_add)