NAME

msgsize - Return the total number of bytes in a message

SYNOPSIS

#include <sys/stream.h>
#include <sys/strsun.h>
size_t msgsize(mblk_t *mp);

illumos DDI specific (illumos DDI)

Message to be evaluated.

The msgsize() function counts the number of bytes in a message, regardless of the data type of the underlying data blocks.

Number of bytes in the message.

This function can be called from user, kernel or interrupt context.