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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_common_h__
#define INCLUDE_common_h__
#ifndef LIBGIT2_NO_FEATURES_H
# include "git2/sys/features.h"
#endif
#include "git2/common.h"
#include "cc-compat.h"
/** Declare a function as always inlined. */
#if defined(_MSC_VER)
# define GIT_INLINE(type) static __inline type
#elif defined(__GNUC__)
# define GIT_INLINE(type) static __inline__ type
#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
# define GIT_INLINE(type) static inline type
#else
# define GIT_INLINE(type) static type
#endif
/** Support for gcc/clang __has_builtin intrinsic */
#ifndef __has_builtin
# define __has_builtin(x) 0
#endif
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef GIT_WIN32
# include <io.h>
# include <direct.h>
# include <winsock2.h>
# include <windows.h>
# include <ws2tcpip.h>
# include "win32/msvc-compat.h"
# include "win32/mingw-compat.h"
# include "win32/w32_common.h"
# include "win32/win32-compat.h"
# include "win32/error.h"
# include "win32/version.h"
# ifdef GIT_THREADS
# include "win32/thread.h"
# endif
#else
# include <unistd.h>
# include <strings.h>
# ifdef GIT_THREADS
# include <pthread.h>
# include <sched.h>
# endif
#define GIT_LIBGIT2_CALL
#define GIT_SYSTEM_CALL
#ifdef GIT_USE_STAT_ATIMESPEC
# define st_atim st_atimespec
# define st_ctim st_ctimespec
# define st_mtim st_mtimespec
#endif
# include <arpa/inet.h>
#endif
#include "git2/types.h"
#include "git2/errors.h"
#include "errors.h"
#include "thread.h"
#include "integer.h"
#include "assert_safe.h"
#include "utf8.h"
/*
* Include the declarations for deprecated functions; this ensures
* that they're decorated with the proper extern/visibility attributes.
*/
#include "git2/deprecated.h"
#include "posix.h"
#define DEFAULT_BUFSIZE 65536
#define FILEIO_BUFSIZE DEFAULT_BUFSIZE
#define FILTERIO_BUFSIZE DEFAULT_BUFSIZE
#define NETIO_BUFSIZE DEFAULT_BUFSIZE
/**
* Check a pointer allocation result, returning -1 if it failed.
*/
#define GIT_ERROR_CHECK_ALLOC(ptr) if (ptr == NULL) { return -1; }
/**
* Check a buffer allocation result, returning -1 if it failed.
*/
#define GIT_ERROR_CHECK_ALLOC_BUF(buf) if ((void *)(buf) == NULL || git_buf_oom(buf)) { return -1; }
/**
* Check a return value and propagate result if non-zero.
*/
#define GIT_ERROR_CHECK_ERROR(code) \
do { int _err = (code); if (_err) return _err; } while (0)
/**
* Check a versioned structure for validity
*/
GIT_INLINE(int) git_error__check_version(const void *structure, unsigned int expected_max, const char *name)
{
unsigned int actual;
if (!structure)
return 0;
actual = *(const unsigned int*)structure;
if (actual > 0 && actual <= expected_max)
return 0;
git_error_set(GIT_ERROR_INVALID, "invalid version %d on %s", actual, name);
return -1;
}
#define GIT_ERROR_CHECK_VERSION(S,V,N) if (git_error__check_version(S,V,N) < 0) return -1
/**
* Initialize a structure with a version.
*/
GIT_INLINE(void) git__init_structure(void *structure, size_t len, unsigned int version)
{
memset(structure, 0, len);
*((int*)structure) = version;
}
#define GIT_INIT_STRUCTURE(S,V) git__init_structure(S, sizeof(*S), V)
#define GIT_INIT_STRUCTURE_FROM_TEMPLATE(PTR,VERSION,TYPE,TPL) do { \
TYPE _tmpl = TPL; \
GIT_ERROR_CHECK_VERSION(&(VERSION), _tmpl.version, #TYPE); \
memcpy((PTR), &_tmpl, sizeof(_tmpl)); } while (0)
/** Check for additive overflow, setting an error if would occur. */
#define GIT_ADD_SIZET_OVERFLOW(out, one, two) \
(git__add_sizet_overflow(out, one, two) ? (git_error_set_oom(), 1) : 0)
/** Check for additive overflow, setting an error if would occur. */
#define GIT_MULTIPLY_SIZET_OVERFLOW(out, nelem, elsize) \
(git__multiply_sizet_overflow(out, nelem, elsize) ? (git_error_set_oom(), 1) : 0)
/** Check for additive overflow, failing if it would occur. */
#define GIT_ERROR_CHECK_ALLOC_ADD(out, one, two) \
if (GIT_ADD_SIZET_OVERFLOW(out, one, two)) { return -1; }
#define GIT_ERROR_CHECK_ALLOC_ADD3(out, one, two, three) \
if (GIT_ADD_SIZET_OVERFLOW(out, one, two) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), three)) { return -1; }
#define GIT_ERROR_CHECK_ALLOC_ADD4(out, one, two, three, four) \
if (GIT_ADD_SIZET_OVERFLOW(out, one, two) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), three) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), four)) { return -1; }
#define GIT_ERROR_CHECK_ALLOC_ADD5(out, one, two, three, four, five) \
if (GIT_ADD_SIZET_OVERFLOW(out, one, two) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), three) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), four) || \
GIT_ADD_SIZET_OVERFLOW(out, *(out), five)) { return -1; }
/** Check for multiplicative overflow, failing if it would occur. */
#define GIT_ERROR_CHECK_ALLOC_MULTIPLY(out, nelem, elsize) \
if (GIT_MULTIPLY_SIZET_OVERFLOW(out, nelem, elsize)) { return -1; }
/* NOTE: other git_error functions are in the public errors.h header file */
#include "util.h"
#endif
|
