summaryrefslogtreecommitdiff
path: root/source3/libsmb/climessage.c
blob: 8429ca4f4131162686f627925f8a9ed3b79759b1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/* 
   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 2 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#define NO_SYSLOG

#include "includes.h"


/****************************************************************************
start a message sequence
****************************************************************************/
int cli_message_start_build(struct cli_state *cli, char *host, 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, -1, STR_ASCII|STR_TERMINATE);
	*p++ = 4;
	p += clistr_push(cli, p, host, -1, STR_ASCII|STR_TERMINATE);
	
	cli_setup_bcc(cli, p);

	return(PTR_DIFF(p, cli->outbuf));
}

BOOL cli_message_start(struct cli_state *cli, char *host, 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, 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 **) &msgdos, True)) < 0 || !msgdos) {
		DEBUG(3,("Conversion failed, sending message in UNIX charset\n"));
		SSVAL(p, 0, len); p += 2;
		memcpy(p, msg, len);
		p += len;
	} else {
		SSVAL(p, 0, lendos); p += 2;
		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, 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;
}