1#include <unistd.h> 2#include <errno.h> 3#include <fcntl.h> 4#include "syscall.h" 5 6int pipe2(int fd[2], int flag) 7{ 8 if (!flag) return pipe(fd); 9 int ret = __syscall(SYS_pipe2, fd, flag); 10 if (ret != -ENOSYS) return __syscall_ret(ret); 11 ret = pipe(fd); 12 if (ret) return ret; 13 if (flag & O_CLOEXEC) { 14 __syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC); 15 __syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC); 16 } 17 if (flag & O_NONBLOCK) { 18 __syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK); 19 __syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK); 20 } 21 return 0; 22} 23