Returns the status of the link.
The X25_LINK_STATUS x25sioctl operation returns the status of a link. This operation returns the last known status of the link to the calling program.
For the X25_LINK_STATUS operation, the arg parameter points to a buffer. On return of this operation, the buffer is filled with a x25_link_status structure. This structure contains the following five fields:
The X25_LINK_STATUS operation can be called from the process environment only.
A return code of -1 indicates an unsuccessful operation. If -1 is returned, the kernel sets the errno global variable to one of the following values:
| EFAULT | Indicates a specified address is not valid. | ||||||||
| EIO | Indicates an error occurred. The status
field of the x25_link_status structure contains one of the following exception codes:
| ||||||||
| ENOBUFS | Indicates no available buffers. | ||||||||
The X25_LINK_STATUS operation functions with an X.25 Interface Co-Processor/2 that has been correctly configured for use on a qualified network. Consult adapter specifications for more information on configuring the adapter and network qualifications.
The X25_LINK_CONNECT x25sioctl operation, X25_LINK_DISCONNECT x25sioctl operation.
The x25sioctl entry point.