nng_msg_dup − duplicate a message
#include <nng/nng.h>
int nng_msg_dup(nng_msg **dup, nng_msg_t *orig);
The nng_msg_dup() makes a duplicate of the original message orig, and saves the result in the location pointed by dup. The actual message body and header content is copied, but the duplicate may contain a different amount of unused space than the original message.
This function returns 0 on success, and non−zero otherwise.
NNG_ENOMEM
Insufficient free memory exists to duplicate a message.
nng_msg_alloc(3), nng_msg_free(3), nng_strerror(3), nng_msg(5), nng(7)