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
|
/*
Unix SMB/CIFS implementation.
Safe string 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.
*/
#ifndef _SAFE_STRING_H
#define _SAFE_STRING_H
#ifndef _SPLINT_ /* http://www.splint.org */
/* Some macros to ensure people don't use buffer overflow vulnerable string
functions. */
#ifdef bcopy
#undef bcopy
#endif /* bcopy */
#define bcopy(src,dest,size) __ERROR__XX__NEVER_USE_BCOPY___;
#ifdef strcpy
#undef strcpy
#endif /* strcpy */
#define strcpy(dest,src) __ERROR__XX__NEVER_USE_STRCPY___;
#ifdef strcat
#undef strcat
#endif /* strcat */
#define strcat(dest,src) __ERROR__XX__NEVER_USE_STRCAT___;
#ifdef sprintf
#undef sprintf
#endif /* sprintf */
#define sprintf __ERROR__XX__NEVER_USE_SPRINTF__;
#endif /* !_SPLINT_ */
char * __unsafe_string_function_usage_here__(void);
#ifdef HAVE_COMPILER_WILL_OPTIMIZE_OUT_FNS
#define pstrcpy(d,s) ((sizeof(d) != sizeof(pstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : safe_strcpy((d), (s),sizeof(pstring)-1))
#define pstrcat(d,s) ((sizeof(d) != sizeof(pstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : safe_strcat((d), (s),sizeof(pstring)-1))
#define fstrcpy(d,s) ((sizeof(d) != sizeof(fstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : safe_strcpy((d),(s),sizeof(fstring)-1))
#define fstrcat(d,s) ((sizeof(d) != sizeof(fstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : safe_strcat((d),(s),sizeof(fstring)-1))
#define fstrterminate(d) ((sizeof(d) != sizeof(fstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : (((d)[sizeof(fstring)-1]) = '\0'))
#define pstrterminate(d) ((sizeof(d) != sizeof(pstring) && sizeof(d) != sizeof(char *)) ? __unsafe_string_function_usage_here__() : (((d)[sizeof(pstring)-1]) = '\0'))
#define wpstrcpy(d,s) ((sizeof(d) != sizeof(wpstring) && sizeof(d) != sizeof(smb_ucs2_t *)) ? __unsafe_string_function_usage_here__() : safe_strcpy_w((d),(s),sizeof(wpstring)))
#define wpstrcat(d,s) ((sizeof(d) != sizeof(wpstring) && sizeof(d) != sizeof(smb_ucs2_t *)) ? __unsafe_string_function_usage_here__() : safe_strcat_w((d),(s),sizeof(wpstring)))
#define wfstrcpy(d,s) ((sizeof(d) != sizeof(wfstring) && sizeof(d) != sizeof(smb_ucs2_t *)) ? __unsafe_string_function_usage_here__() : safe_strcpy_w((d),(s),sizeof(wfstring)))
#define wfstrcat(d,s) ((sizeof(d) != sizeof(wfstring) && sizeof(d) != sizeof(smb_ucs2_t *)) ? __unsafe_string_function_usage_here__() : safe_strcat_w((d),(s),sizeof(wfstring)))
#else
#define pstrcpy(d,s) safe_strcpy((d), (s),sizeof(pstring)-1)
#define pstrcat(d,s) safe_strcat((d), (s),sizeof(pstring)-1)
#define fstrcpy(d,s) safe_strcpy((d),(s),sizeof(fstring)-1)
#define fstrcat(d,s) safe_strcat((d),(s),sizeof(fstring)-1)
#define fstrterminate(d) (((d)[sizeof(fstring)-1]) = '\0')
#define pstrterminate(d) (((d)[sizeof(pstring)-1]) = '\0')
#define wpstrcpy(d,s) safe_strcpy_w((d),(s),sizeof(wpstring))
#define wpstrcat(d,s) safe_strcat_w((d),(s),sizeof(wpstring))
#define wfstrcpy(d,s) safe_strcpy_w((d),(s),sizeof(wfstring))
#define wfstrcat(d,s) safe_strcat_w((d),(s),sizeof(wfstring))
#endif
/* replace some string functions with multi-byte
versions */
#define strlower(s) strlower_m(s)
#define strupper(s) strupper_m(s)
/* the addition of the DEVELOPER checks in safe_strcpy means we must
* update a lot of code. To make this a little easier here are some
* functions that provide the lengths with less pain */
#define pstrcpy_base(dest, src, pstring_base) \
safe_strcpy(dest, src, sizeof(pstring)-PTR_DIFF(dest,pstring_base)-1)
#define push_pstring_base(dest, src, pstring_base) \
push_ascii(dest, src, sizeof(pstring)-PTR_DIFF(dest,pstring_base)-1, STR_TERMINATE)
#endif
|
