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