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
|
/*
Unix SMB/CIFS implementation.
Samba module with developer tools
Copyright (C) Andrew Tridgell 2001
Copyright (C) Jelmer Vernooij 2002
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.
*/
#include "includes.h"
static struct {
char from;
char *to;
int len;
} weird_table[] = {
{'q', CONST_DISCARD(char *, "^q^"), 3},
{'Q', CONST_DISCARD(char *, "^Q^"), 3},
{0, NULL}
};
static size_t weird_pull(void *cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
while (*inbytesleft >= 1 && *outbytesleft >= 2) {
int i;
int done = 0;
for (i=0;weird_table[i].from;i++) {
if (strncmp((*inbuf),
weird_table[i].to,
weird_table[i].len) == 0) {
if (*inbytesleft < weird_table[i].len) {
DEBUG(0,("ERROR: truncated weird string\n"));
/* smb_panic("weird_pull"); */
} else {
(*outbuf)[0] = weird_table[i].from;
(*outbuf)[1] = 0;
(*inbytesleft) -= weird_table[i].len;
(*outbytesleft) -= 2;
(*inbuf) += weird_table[i].len;
(*outbuf) += 2;
done = 1;
break;
}
}
}
if (done) continue;
(*outbuf)[0] = (*inbuf)[0];
(*outbuf)[1] = 0;
(*inbytesleft) -= 1;
(*outbytesleft) -= 2;
(*inbuf) += 1;
(*outbuf) += 2;
}
if (*inbytesleft > 0) {
errno = E2BIG;
return -1;
}
return 0;
}
static size_t weird_push(void *cd, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
int ir_count=0;
while (*inbytesleft >= 2 && *outbytesleft >= 1) {
int i;
int done=0;
for (i=0;weird_table[i].from;i++) {
if ((*inbuf)[0] == weird_table[i].from &&
(*inbuf)[1] == 0) {
if (*outbytesleft < weird_table[i].len) {
DEBUG(0,("No room for weird character\n"));
/* smb_panic("weird_push"); */
} else {
memcpy(*outbuf, weird_table[i].to,
weird_table[i].len);
(*inbytesleft) -= 2;
(*outbytesleft) -= weird_table[i].len;
(*inbuf) += 2;
(*outbuf) += weird_table[i].len;
done = 1;
break;
}
}
}
if (done) continue;
(*outbuf)[0] = (*inbuf)[0];
if ((*inbuf)[1]) ir_count++;
(*inbytesleft) -= 2;
(*outbytesleft) -= 1;
(*inbuf) += 2;
(*outbuf) += 1;
}
if (*inbytesleft == 1) {
errno = EINVAL;
return -1;
}
if (*inbytesleft > 1) {
errno = E2BIG;
return -1;
}
return ir_count;
}
struct charset_functions weird_functions = {"WEIRD", weird_pull, weird_push};
NTSTATUS charset_weird_init(void)
{
return smb_register_charset(&weird_functions);
}
|
