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/*
Unix SMB/CIFS implementation.
client message handling routines
Copyright (C) Andrew Tridgell 1994-1998
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
/****************************************************************************
Start a message sequence.
****************************************************************************/
int cli_message_start_build(struct cli_state *cli, const char *host, const char *username)
{
char *p;
/* construct a SMBsendstrt command */
memset(cli->outbuf,'\0',smb_size);
set_message(cli->outbuf,0,0,True);
SCVAL(cli->outbuf,smb_com,SMBsendstrt);
SSVAL(cli->outbuf,smb_tid,cli->cnum);
cli_setup_packet(cli);
p = smb_buf(cli->outbuf);
*p++ = 4;
p += clistr_push(cli, p, username,
cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE);
*p++ = 4;
p += clistr_push(cli, p, host,
cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE);
cli_setup_bcc(cli, p);
return(PTR_DIFF(p, cli->outbuf));
}
bool cli_message_start(struct cli_state *cli, const char *host, const char *username,
int *grp)
{
cli_message_start_build(cli, host, username);
cli_send_smb(cli);
if (!cli_receive_smb(cli)) {
return False;
}
if (cli_is_error(cli)) return False;
*grp = SVAL(cli->inbuf,smb_vwv0);
return True;
}
/****************************************************************************
Send a message
****************************************************************************/
int cli_message_text_build(struct cli_state *cli, const char *msg, int len, int grp)
{
char *msgdos;
int lendos;
char *p;
memset(cli->outbuf,'\0',smb_size);
set_message(cli->outbuf,1,0,True);
SCVAL(cli->outbuf,smb_com,SMBsendtxt);
SSVAL(cli->outbuf,smb_tid,cli->cnum);
cli_setup_packet(cli);
SSVAL(cli->outbuf,smb_vwv0,grp);
p = smb_buf(cli->outbuf);
*p++ = 1;
if ((lendos = (int)convert_string_allocate(NULL,CH_UNIX, CH_DOS, msg,len, (void **)(void *)&msgdos, True)) < 0 || !msgdos) {
DEBUG(3,("Conversion failed, sending message in UNIX charset\n"));
SSVAL(p, 0, len); p += 2;
if (len > cli->bufsize - PTR_DIFF(p,cli->outbuf)) {
return -1;
}
memcpy(p, msg, len);
p += len;
} else {
SSVAL(p, 0, lendos); p += 2;
if (lendos > cli->bufsize - PTR_DIFF(p,cli->outbuf)) {
return -1;
}
memcpy(p, msgdos, lendos);
p += lendos;
SAFE_FREE(msgdos);
}
cli_setup_bcc(cli, p);
return(PTR_DIFF(p, cli->outbuf));
}
bool cli_message_text(struct cli_state *cli, const char *msg, int len, int grp)
{
cli_message_text_build(cli, msg, len, grp);
cli_send_smb(cli);
if (!cli_receive_smb(cli)) {
return False;
}
if (cli_is_error(cli)) return False;
return True;
}
/****************************************************************************
End a message.
****************************************************************************/
int cli_message_end_build(struct cli_state *cli, int grp)
{
char *p;
memset(cli->outbuf,'\0',smb_size);
set_message(cli->outbuf,1,0,True);
SCVAL(cli->outbuf,smb_com,SMBsendend);
SSVAL(cli->outbuf,smb_tid,cli->cnum);
SSVAL(cli->outbuf,smb_vwv0,grp);
cli_setup_packet(cli);
p = smb_buf(cli->outbuf);
return(PTR_DIFF(p, cli->outbuf));
}
bool cli_message_end(struct cli_state *cli, int grp)
{
cli_message_end_build(cli, grp);
cli_send_smb(cli);
if (!cli_receive_smb(cli)) {
return False;
}
if (cli_is_error(cli)) return False;
return True;
}
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