Description |
 |
This function returns a socket descriptor that refers to the same
socket as specified by s. Both descriptors can be used to
reference the socket. The new socket descriptor is the lowest numbered
available socket descriptor.
For more information about dup or any other POSIX function,
refer to the MPE/iX Developer's Kit Reference Manual, Volume 1.
Return Value |
|
If the call is successful, a valid file descriptor referencing the
socket is returned. If it fails a -1 is returned, and an error code
is stored in errno.
