nng_msg_header(3)

NAME

nng_msg_header - return message header

#include <nng/nng.h>

void *nng_msg_header(nng_msg *msg);

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.

Pointer to start of message header.

None.