ClickHouse/libs/libglibc-compatibility/musl/pipe2.c
2017-09-15 12:51:56 +03:00

25 lines
588 B
C

#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/syscall.h>
extern long int syscall (long int __sysno, ...) __THROW;
int pipe2(int fd[2], int flag)
{
if (!flag) return pipe(fd);
int ret = syscall(SYS_pipe2, fd, flag);
if (ret != -ENOSYS) return -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;
}