-#define _GNU_SOURCE
#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
#include "syscall.h"
-int pipe2(int fd[2], int flg)
+int pipe2(int fd[2], int flag)
{
- return syscall(SYS_pipe2, fd, flg);
+ if (!flag) return pipe(fd);
+ int ret = __syscall(SYS_pipe2, fd, flag);
+ if (ret != -ENOSYS) return __syscall_ret(ret);
+ ret = pipe(fd);
+ if (ret) return ret;
+ if (flag & O_CLOEXEC) {
+ __syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
+ __syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
+ }
+ if (flag & O_NONBLOCK) {
+ __syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
+ __syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
+ }
+ return 0;
}