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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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