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DEFINITIONS
This source file includes following definitions.
- cli_message_start_build
- cli_message_start
- cli_message_text_build
- cli_message_text
- cli_message_end_build
- cli_message_end
1 /*
2 Unix SMB/CIFS implementation.
3 client message handling routines
4 Copyright (C) Andrew Tridgell 1994-1998
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21
22 /****************************************************************************
23 Start a message sequence.
24 ****************************************************************************/
25
26 int cli_message_start_build(struct cli_state *cli, const char *host, const char *username)
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27 {
28 char *p;
29
30 /* construct a SMBsendstrt command */
31 memset(cli->outbuf,'\0',smb_size);
32 cli_set_message(cli->outbuf,0,0,True);
33 SCVAL(cli->outbuf,smb_com,SMBsendstrt);
34 SSVAL(cli->outbuf,smb_tid,cli->cnum);
35 cli_setup_packet(cli);
36
37 p = smb_buf(cli->outbuf);
38 *p++ = 4;
39 p += clistr_push(cli, p, username,
40 cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE);
41 *p++ = 4;
42 p += clistr_push(cli, p, host,
43 cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_ASCII|STR_TERMINATE);
44
45 cli_setup_bcc(cli, p);
46
47 return(PTR_DIFF(p, cli->outbuf));
48 }
49
50 bool cli_message_start(struct cli_state *cli, const char *host, const char *username,
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51 int *grp)
52 {
53 cli_message_start_build(cli, host, username);
54 cli_send_smb(cli);
55
56 if (!cli_receive_smb(cli)) {
57 return False;
58 }
59
60 if (cli_is_error(cli)) return False;
61
62 *grp = SVAL(cli->inbuf,smb_vwv0);
63
64 return True;
65 }
66
67 /****************************************************************************
68 Send a message
69 ****************************************************************************/
70
71 int cli_message_text_build(struct cli_state *cli, const char *msg, int len, int grp)
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72 {
73 char *msgdos;
74 size_t lendos;
75 char *p;
76
77 memset(cli->outbuf,'\0',smb_size);
78 cli_set_message(cli->outbuf,1,0,True);
79 SCVAL(cli->outbuf,smb_com,SMBsendtxt);
80 SSVAL(cli->outbuf,smb_tid,cli->cnum);
81 cli_setup_packet(cli);
82
83 SSVAL(cli->outbuf,smb_vwv0,grp);
84
85 p = smb_buf(cli->outbuf);
86 *p++ = 1;
87
88 if (!convert_string_allocate(NULL, CH_UNIX, CH_DOS, msg, len,
89 (void **)(void *)&msgdos, &lendos, True) || !msgdos) {
90 DEBUG(3,("Conversion failed, sending message in UNIX charset\n"));
91 SSVAL(p, 0, len); p += 2;
92 if (len > cli->bufsize - PTR_DIFF(p,cli->outbuf)) {
93 return -1;
94 }
95 memcpy(p, msg, len);
96 p += len;
97 } else {
98 SSVAL(p, 0, lendos); p += 2;
99 if (lendos > cli->bufsize - PTR_DIFF(p,cli->outbuf)) {
100 return -1;
101 }
102 memcpy(p, msgdos, lendos);
103 p += lendos;
104 SAFE_FREE(msgdos);
105 }
106
107 cli_setup_bcc(cli, p);
108
109 return(PTR_DIFF(p, cli->outbuf));
110 }
111
112 bool cli_message_text(struct cli_state *cli, const char *msg, int len, int grp)
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113 {
114 cli_message_text_build(cli, msg, len, grp);
115
116 cli_send_smb(cli);
117
118 if (!cli_receive_smb(cli)) {
119 return False;
120 }
121
122 if (cli_is_error(cli)) return False;
123
124 return True;
125 }
126
127 /****************************************************************************
128 End a message.
129 ****************************************************************************/
130
131 int cli_message_end_build(struct cli_state *cli, int grp)
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132 {
133 char *p;
134
135 memset(cli->outbuf,'\0',smb_size);
136 cli_set_message(cli->outbuf,1,0,True);
137 SCVAL(cli->outbuf,smb_com,SMBsendend);
138 SSVAL(cli->outbuf,smb_tid,cli->cnum);
139
140 SSVAL(cli->outbuf,smb_vwv0,grp);
141
142 cli_setup_packet(cli);
143
144 p = smb_buf(cli->outbuf);
145
146 return(PTR_DIFF(p, cli->outbuf));
147 }
148
149 bool cli_message_end(struct cli_state *cli, int grp)
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150 {
151 cli_message_end_build(cli, grp);
152
153 cli_send_smb(cli);
154
155 if (!cli_receive_smb(cli)) {
156 return False;
157 }
158
159 if (cli_is_error(cli)) return False;
160
161 return True;
162 }