nng_msg_header3
Return message header
Usage
#include <nng/nng.h> void *nng_msg_header(nng_msg *msg);
Overview
The nng_msg_header() function returns a pointer to the start of the header content of the message msg.
Note
The message header contains protocol-specific header content. Most applications should not need to access this content, but it is available for raw mode sockets (set with the NNG_OPT_RAW option.)
Note
The value returned by this is invalidated by a call to any of the functions that modify the message or the header content.
Return values
Pointer to start of message header.
Errors
None.