media/webrtc/signaling/src/common/csf_common.h@ac0c01689b40
media/webrtc/signaling/src/common/csf_common.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 #ifndef _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H
6 #define _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H
8 #include <assert.h>
9 #include <memory>
10 #include <vector>
11 #include <stdlib.h>
13 /*
15 This header file defines:
17 csf_countof
18 csf_sprintf
19 csf_vsprintf
21 */
23 /*
24 General security tip: Ensure that "format" is never a user-defined string. Format should ALWAYS be something that's built into your code, not
25 user supplied. For example: never write:
27 csf_sprintf(buffer, csf_countof(buffer), pUserSuppliedString);
29 Instead write:
31 csf_sprintf(buffer, csf_countof(buffer), "%s", pUserSuppliedString);
33 */
35 #ifdef WIN32
36 #if !defined(_countof)
37 #if !defined(__cplusplus)
38 #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
39 #else
40 extern "C++"
41 {
42 template <typename _CountofType, size_t _SizeOfArray>
43 char (*_csf_countof_helper(_CountofType (&_Array)[_SizeOfArray]))[_SizeOfArray];
44 #define _countof(_Array) sizeof(*_csf_countof_helper(_Array))
45 }
46 #endif
47 #endif
48 #else
49 #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
50 #endif
51 //csf_countof
53 #define csf_countof(anArray) _countof(anArray)
55 //csf_sprintf
57 #ifdef _WIN32
58 //Unlike snprintf, sprintf_s guarantees that the buffer will be null-terminated (unless the buffer size is zero).
59 #define csf_sprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
60 _snprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, __VA_ARGS__)
61 #else
62 #define csf_sprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
63 snprintf (buffer, sizeOfBufferInCharsInclNullTerm, format, __VA_ARGS__);\
64 buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
65 #endif
67 //csf_vsprintf
69 #ifdef _WIN32
70 #define csf_vsprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
71 vsnprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, vaList);\
72 buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
73 #else
74 #define csf_vsprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
75 vsprintf (buffer, format, vaList);\
76 buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
77 #endif
79 #endif
