source/libsmb/climessage.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 3.0
   4    client message handling routines
   5    Copyright (C) Andrew Tridgell 1994-1998
   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 2 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, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #define NO_SYSLOG
  23
  24 #include "includes.h"
  25
  26
  27 /****************************************************************************
  28 start a message sequence
  29 ****************************************************************************/
  30 BOOL cli_message_start(struct cli_state *cli, char *host, char *username,
  31                               int *grp)
  32 {
  33         char *p;
  34
  35         /* send a SMBsendstrt command */
  36         memset(cli->outbuf,'\0',smb_size);
  37         set_message(cli->outbuf,0,0,True);
  38         CVAL(cli->outbuf,smb_com) = SMBsendstrt;
  39         SSVAL(cli->outbuf,smb_tid,cli->cnum);
  40         cli_setup_packet(cli);
  41
  42         p = smb_buf(cli->outbuf);
  43         *p++ = 4;
  44         p += clistr_push(cli, p, username, -1,
  45                          STR_TERMINATE|STR_CONVERT);
  46         *p++ = 4;
  47         p += clistr_push(cli, p, host, -1,
  48                          STR_TERMINATE|STR_CONVERT);
  49
  50         cli_setup_bcc(cli, p);
  51
  52         cli_send_smb(cli);
  53
  54         if (!cli_receive_smb(cli)) {
  55                 return False;
  56         }
  57
  58         if (cli_error(cli, NULL, NULL, NULL)) return False;
  59
  60         *grp = SVAL(cli->inbuf,smb_vwv0);
  61
  62         return True;
  63 }
  64
  65
  66 /****************************************************************************
  67 send a message
  68 ****************************************************************************/
  69 BOOL cli_message_text(struct cli_state *cli, char *msg, int len, int grp)
  70 {
  71         char *p;
  72
  73         memset(cli->outbuf,'\0',smb_size);
  74         set_message(cli->outbuf,1,len+3,True);
  75         CVAL(cli->outbuf,smb_com) = SMBsendtxt;
  76         SSVAL(cli->outbuf,smb_tid,cli->cnum);
  77         cli_setup_packet(cli);
  78
  79         SSVAL(cli->outbuf,smb_vwv0,grp);
  80
  81         p = smb_buf(cli->outbuf);
  82         *p = 1;
  83         SSVAL(p,1,len);
  84         memcpy(p+3,msg,len);
  85         cli_send_smb(cli);
  86
  87         if (!cli_receive_smb(cli)) {
  88                 return False;
  89         }
  90
  91         if (cli_error(cli, NULL, NULL, NULL)) return False;
  92
  93         return True;
  94 }
  95
  96 /****************************************************************************
  97 end a message
  98 ****************************************************************************/
  99 BOOL cli_message_end(struct cli_state *cli, int grp)
 100 {
 101         memset(cli->outbuf,'\0',smb_size);
 102         set_message(cli->outbuf,1,0,True);
 103         CVAL(cli->outbuf,smb_com) = SMBsendend;
 104         SSVAL(cli->outbuf,smb_tid,cli->cnum);
 105
 106         SSVAL(cli->outbuf,smb_vwv0,grp);
 107
 108         cli_setup_packet(cli);
 109
 110         cli_send_smb(cli);
 111
 112         if (!cli_receive_smb(cli)) {
 113                 return False;
 114         }
 115
 116         if (cli_error(cli, NULL, NULL, NULL)) return False;
 117
 118         return True;
 119 }
 120