* Copyright 2004-2009, Axel Dörfler, axeld@pinc-software.de.
* Distributed under the terms of the MIT License.
*/
#include <errno.h>
#include <unistd.h>
#include <errno_private.h>
#include <syscalls.h>
#include <syscall_utils.h>
int
dup(int fd)
{
RETURN_AND_SET_ERRNO(_kern_dup(fd));
}
int
dup2(int oldFD, int newFD)
{
RETURN_AND_SET_ERRNO(_kern_dup2(oldFD, newFD, 0));
}
int
dup3(int oldFD, int newFD, int flags)
{
if (oldFD == newFD)
RETURN_AND_SET_ERRNO(EINVAL);
if ((flags & ~(O_CLOEXEC | O_CLOFORK)) != 0)
RETURN_AND_SET_ERRNO(EINVAL);
RETURN_AND_SET_ERRNO(_kern_dup2(oldFD, newFD, flags));
}
