| 1 | #include <fcntl.h> |
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| 2 | #include <sanitizer/linux_syscall_hooks.h> |
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| 3 | #include <signal.h> |
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| 4 | #include <sys/syscall.h> |
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| 5 | #include <sys/types.h> |
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| 6 | #include <unistd.h> |
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| 7 | |
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| 8 | int myfork() { |
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| 9 | __sanitizer_syscall_pre_fork(); |
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| 10 | #ifdef SYS_fork |
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| 11 | int res = syscall(SYS_fork); |
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| 12 | #else |
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| 13 | int res = syscall(SYS_clone, SIGCHLD, 0); |
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| 14 | #endif |
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| 15 | __sanitizer_syscall_post_fork(res); |
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| 16 | return res; |
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| 17 | } |
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| 18 | |
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| 19 | int mypipe(int pipefd[2]) { |
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| 20 | __sanitizer_syscall_pre_pipe(pipefd); |
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| 21 | int res = syscall(SYS_pipe2, pipefd, 0); |
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| 22 | __sanitizer_syscall_post_pipe(res, pipefd); |
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| 23 | return res; |
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| 24 | } |
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| 25 | |
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| 26 | int myclose(int fd) { |
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| 27 | __sanitizer_syscall_pre_close(fd); |
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| 28 | int res = syscall(SYS_close, fd); |
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| 29 | __sanitizer_syscall_post_close(res, fd); |
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| 30 | return res; |
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| 31 | } |
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| 32 | |
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| 33 | ssize_t myread(int fd, void *buf, size_t count) { |
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| 34 | __sanitizer_syscall_pre_read(fd, buf, count); |
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| 35 | ssize_t res = syscall(SYS_read, fd, buf, count); |
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| 36 | __sanitizer_syscall_post_read(res, fd, buf, count); |
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| 37 | return res; |
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| 38 | } |
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| 39 | |
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| 40 | ssize_t mywrite(int fd, const void *buf, size_t count) { |
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| 41 | __sanitizer_syscall_pre_write(fd, buf, count); |
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| 42 | ssize_t res = syscall(SYS_write, fd, buf, count); |
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| 43 | __sanitizer_syscall_post_write(res, fd, buf, count); |
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| 44 | return res; |
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| 45 | } |
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| 46 | |
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