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
|
/*
Unix SMB/Netbios implementation.
Version 3.0
client string routines
Copyright (C) Andrew Tridgell 2001
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"
/****************************************************************************
copy a string from a char* src to a unicode or ascii
dos code page destination choosing unicode or ascii based on the
cli->capabilities flag
return the number of bytes occupied by the string in the destination
flags can have:
STR_TERMINATE means include the null termination
STR_CONVERT means convert from unix to dos codepage
STR_UPPER means uppercase in the destination
STR_ASCII use ascii even with unicode servers
dest_len is the maximum length allowed in the destination. If dest_len
is -1 then no maxiumum is used
****************************************************************************/
int clistr_push(struct cli_state *cli, void *dest, const char *src, int dest_len, int flags)
{
int len=0;
/* treat a pstring as "unlimited" length */
if (dest_len == -1) {
dest_len = sizeof(pstring);
}
if (!(flags & STR_ASCII) && clistr_align(cli->outbuf, dest)) {
*(char *)dest = 0;
dest = (void *)((char *)dest + 1);
dest_len--;
len++;
}
if ((flags & STR_ASCII) || !(SVAL(cli->outbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS)) {
/* the server doesn't want unicode */
safe_strcpy(dest, src, dest_len);
len = strlen(dest);
if (flags & STR_TERMINATE) len++;
if (flags & STR_CONVERT) unix_to_dos(dest,True);
if (flags & STR_UPPER) strupper(dest);
return len;
}
/* the server likes unicode. give it the works */
if (flags & STR_CONVERT) {
dos_PutUniCode(dest, src, dest_len, flags & STR_TERMINATE);
} else {
ascii_to_unistr(dest, src, dest_len);
}
if (flags & STR_UPPER) {
strupper_w(dest);
}
len += strlen(src)*2;
if (flags & STR_TERMINATE) len += 2;
return len;
}
/****************************************************************************
copy a string from a unicode or ascii source (depending on
cli->capabilities) to a char* destination
flags can have:
STR_CONVERT means convert from dos to unix codepage
STR_TERMINATE means the string in src is null terminated
STR_UNICODE means to force as unicode
if STR_TERMINATE is set then src_len is ignored
src_len is the length of the source area in bytes
return the number of bytes occupied by the string in src
****************************************************************************/
int clistr_pull(struct cli_state *cli, char *dest, const void *src, int dest_len, int src_len, int flags)
{
int len;
if (dest_len == -1) {
dest_len = sizeof(pstring);
}
if (!(flags & STR_ASCII) && clistr_align(cli->inbuf, src)) {
src = (void *)((char *)src + 1);
if (src_len > 0) src_len--;
}
if ((flags & STR_ASCII) ||
(!(flags & STR_UNICODE) && !(SVAL(cli->inbuf, smb_flg2) & FLAGS2_UNICODE_STRINGS))) {
/* the server doesn't want unicode */
if (flags & STR_TERMINATE) {
safe_strcpy(dest, src, dest_len);
len = strlen(src)+1;
} else {
if (src_len > dest_len) src_len = dest_len;
len = src_len;
memcpy(dest, src, len);
dest[len] = 0;
}
if (flags & STR_CONVERT) dos_to_unix(dest,True);
return len;
}
if (flags & STR_TERMINATE) {
unistr_to_ascii(dest, src, dest_len);
len = strlen(dest)*2 + 2;
} else {
int i, c;
if (dest_len*2 < src_len) src_len = 2*dest_len;
for (i=0; i < src_len; i += 2) {
c = SVAL(src, i);
*dest++ = c;
}
*dest++ = 0;
len = src_len;
}
if (flags & STR_CONVERT) dos_to_unix(dest,True);
return len;
}
/****************************************************************************
return an alignment of either 0 or 1
if unicode is not negotiated then return 0
otherwise return 1 if offset is off
****************************************************************************/
int clistr_align(const void *buf, const void *p)
{
if (!(SVAL(buf, smb_flg2) & FLAGS2_UNICODE_STRINGS)) return 0;
return PTR_DIFF(p, buf) & 1;
}
|
