Make sure we don't clobber the stack when response consists of the empty
[Samba/gebeck_regimport.git] / source3 / libsmb / clistr.c
blobc61445c0735e413bd415437bd27977473fdd703a
1 /*
2 Unix SMB/CIFS implementation.
3 client string routines
4 Copyright (C) Andrew Tridgell 2001
5 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "includes.h"
24 size_t clistr_push_fn(const char *function, unsigned int line,
25 struct cli_state *cli, void *dest,
26 const char *src, int dest_len, int flags)
28 size_t buf_used = PTR_DIFF(dest, cli->outbuf);
29 if (dest_len == -1) {
30 if (((ptrdiff_t)dest < (ptrdiff_t)cli->outbuf) || (buf_used > cli->bufsize)) {
31 DEBUG(0, ("Pushing string of 'unlimited' length into non-SMB buffer!\n"));
32 return push_string_fn(function, line, cli->outbuf, dest, src, -1, flags);
34 return push_string_fn(function, line, cli->outbuf, dest, src, cli->bufsize - buf_used, flags);
37 /* 'normal' push into size-specified buffer */
38 return push_string_fn(function, line, cli->outbuf, dest, src, dest_len, flags);
41 size_t clistr_pull_fn(const char *function, unsigned int line,
42 struct cli_state *cli, char *dest, const void *src,
43 int dest_len, int src_len,
44 int flags)
46 return pull_string_fn(function, line, cli->inbuf, dest, src, dest_len, src_len, flags);
50 size_t clistr_align_out(struct cli_state *cli, const void *p, int flags)
52 return align_string(cli->outbuf, p, flags);
55 size_t clistr_align_in(struct cli_state *cli, const void *p, int flags)
57 return align_string(cli->inbuf, p, flags);