source3/libsmb/clistr.c

   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
   6
   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 3 of the License, or
  10    (at your option) any later version.
  11
  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.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "libsmb/libsmb.h"
  23
  24 size_t clistr_push_fn(struct cli_state *cli,
  25                         void *dest,
  26                         const char *src,
  27                         int dest_len,
  28                         int flags)
  29 {
  30         size_t buf_used = PTR_DIFF(dest, cli->outbuf);
  31         if (dest_len == -1) {
  32                 if (((ptrdiff_t)dest < (ptrdiff_t)cli->outbuf) || (buf_used > cli->bufsize)) {
  33                         DEBUG(0, ("Pushing string of 'unlimited' length into non-SMB buffer!\n"));
  34                         return push_string_base(cli->outbuf,
  35                                                 (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
  36                                                 dest, src, -1, flags);
  37                 }
  38                 return push_string_base(cli->outbuf,
  39                                         (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
  40                                         dest, src, cli->bufsize - buf_used,
  41                                         flags);
  42         }
  43
  44         /* 'normal' push into size-specified buffer */
  45         return push_string_base(cli->outbuf,
  46                                 (uint16_t)(cli_ucs2(cli) ? FLAGS2_UNICODE_STRINGS : 0),
  47                                 dest, src, dest_len, flags);
  48 }
  49
  50 size_t clistr_pull_fn(const char *inbuf,
  51                         char *dest,
  52                         const void *src,
  53                         int dest_len,
  54                         int src_len,
  55                         int flags)
  56 {
  57         return pull_string_fn(inbuf,
  58                               SVAL(inbuf, smb_flg2), dest, src, dest_len,
  59                               src_len, flags);
  60 }
  61
  62 size_t clistr_pull_talloc(TALLOC_CTX *ctx,
  63                           const char *base,
  64                           uint16_t flags2,
  65                           char **pp_dest,
  66                           const void *src,
  67                           int src_len,
  68                           int flags)
  69 {
  70         return pull_string_talloc(ctx,
  71                                   base,
  72                                   flags2,
  73                                   pp_dest,
  74                                   src,
  75                                   src_len,
  76                                   flags);
  77 }