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392d7920 1/* Routines for dealing with '\0' separated arg vectors.
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2 Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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4 Written by Miles Bader <miles@gnu.ai.mit.edu>
5
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6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
392d7920 10
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11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
392d7920 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c84142e8 14 Library General Public License for more details.
392d7920 15
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16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
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20
21#include <argz.h>
22#include <string.h>
23#include <stdlib.h>
24
25/* Add BUF, of length BUF_LEN to the argz vector in ARGZ & ARGZ_LEN. */
26error_t
27__argz_append (char **argz, size_t *argz_len, const char *buf, size_t buf_len)
28{
29 size_t new_argz_len = *argz_len + buf_len;
30 char *new_argz = realloc (*argz, new_argz_len);
31 if (new_argz)
32 {
33 memcpy (new_argz + *argz_len, buf, buf_len);
34 *argz = new_argz;
35 *argz_len = new_argz_len;
36 return 0;
37 }
38 else
39 return ENOMEM;
40}
41weak_alias (__argz_append, argz_append)
42
43/* Add STR to the argz vector in ARGZ & ARGZ_LEN. This should be moved into
44 argz.c in libshouldbelibc. */
45error_t
46__argz_add (char **argz, size_t *argz_len, const char *str)
47{
48 return __argz_append (argz, argz_len, str, strlen (str) + 1);
49}
50weak_alias (__argz_add, argz_add)