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
|
/* PipeWire
*
* Copyright © 2021 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
* We need to export open* etc., but _FORTIFY_SOURCE defines conflicting
* always_inline versions. Disable _FORTIFY_SOURCE for this file, so we
* can define our overrides.
*/
#ifdef _FORTIFY_SOURCE
#undef _FORTIFY_SOURCE
#endif
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "pipewire-v4l2.h"
#define SPA_EXPORT __attribute__((visibility("default")))
#define extract_va_arg(type, arg, last) \
{ \
va_list ap; \
va_start(ap, last); \
arg = va_arg(ap, type); \
va_end(ap); \
}
SPA_EXPORT int open(const char *path, int oflag, ...)
{
mode_t mode = 0;
if (oflag & O_CREAT || oflag & O_TMPFILE)
extract_va_arg(mode_t, mode, oflag);
return get_fops()->openat(AT_FDCWD, path, oflag, mode);
}
/* _FORTIFY_SOURCE redirects open to __open_2 */
SPA_EXPORT int __open_2(const char *path, int oflag)
{
return open(path, oflag);
}
#ifndef open64
SPA_EXPORT int open64(const char *path, int oflag, ...)
{
mode_t mode = 0;
if (oflag & O_CREAT || oflag & O_TMPFILE)
extract_va_arg(mode_t, mode, oflag);
return get_fops()->openat(AT_FDCWD, path, oflag | O_LARGEFILE, mode);
}
SPA_EXPORT int __open64_2(const char *path, int oflag)
{
return open(path, oflag);
}
#endif
SPA_EXPORT int openat(int dirfd, const char *path, int oflag, ...)
{
mode_t mode = 0;
if (oflag & O_CREAT || oflag & O_TMPFILE)
extract_va_arg(mode_t, mode, oflag);
return get_fops()->openat(dirfd, path, oflag, mode);
}
SPA_EXPORT int __openat_2(int dirfd, const char *path, int oflag)
{
return openat(dirfd, path, oflag);
}
#ifndef openat64
SPA_EXPORT int openat64(int dirfd, const char *path, int oflag, ...)
{
mode_t mode = 0;
if (oflag & O_CREAT || oflag & O_TMPFILE)
extract_va_arg(mode_t, mode, oflag);
return get_fops()->openat(dirfd, path, oflag | O_LARGEFILE, mode);
}
SPA_EXPORT int __openat64_2(int dirfd, const char *path, int oflag)
{
return openat(dirfd, path, oflag);
}
#endif
SPA_EXPORT int dup(int oldfd)
{
return get_fops()->dup(oldfd);
}
SPA_EXPORT int close(int fd)
{
return get_fops()->close(fd);
}
SPA_EXPORT void *mmap(void *addr, size_t length, int prot, int flags,
int fd, off_t offset)
{
return get_fops()->mmap(addr, length, prot, flags, fd, offset);
}
#ifndef mmap64
SPA_EXPORT void *mmap64(void *addr, size_t length, int prot, int flags,
int fd, off64_t offset)
{
return get_fops()->mmap(addr, length, prot, flags, fd, offset);
}
#endif
SPA_EXPORT int munmap(void *addr, size_t length)
{
return get_fops()->munmap(addr, length);
}
SPA_EXPORT int ioctl(int fd, unsigned long int request, ...)
{
void *arg;
extract_va_arg(void *, arg, request);
return get_fops()->ioctl(fd, request, arg);
}
|
