#include <stdapis/sys/socket.h>
| struct cmsghdr |
| Public Attributes | |
|---|---|
| socklen_t | cmsg_len |
| int | cmsg_level |
| int | cmsg_type |
Header for ancillary data objects in msg_control buffer. Used for additional information with/about a datagram not expressible by flags. The format is a sequence of message elements headed by cmsghdr structures.