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
|
#include <fcntl.h>
#include <sanitizer/linux_syscall_hooks.h>
#include <signal.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
int myfork() {
__sanitizer_syscall_pre_fork();
#ifdef SYS_fork
int res = syscall(SYS_fork);
#else
int res = syscall(SYS_clone, SIGCHLD, 0);
#endif
__sanitizer_syscall_post_fork(res);
return res;
}
int mypipe(int pipefd[2]) {
__sanitizer_syscall_pre_pipe(pipefd);
int res = syscall(SYS_pipe2, pipefd, 0);
__sanitizer_syscall_post_pipe(res, pipefd);
return res;
}
int myclose(int fd) {
__sanitizer_syscall_pre_close(fd);
int res = syscall(SYS_close, fd);
__sanitizer_syscall_post_close(res, fd);
return res;
}
ssize_t myread(int fd, void *buf, size_t count) {
__sanitizer_syscall_pre_read(fd, buf, count);
ssize_t res = syscall(SYS_read, fd, buf, count);
__sanitizer_syscall_post_read(res, fd, buf, count);
return res;
}
ssize_t mywrite(int fd, const void *buf, size_t count) {
__sanitizer_syscall_pre_write(fd, buf, count);
ssize_t res = syscall(SYS_write, fd, buf, count);
__sanitizer_syscall_post_write(res, fd, buf, count);
return res;
}
|
