mcopymsg(9F) Kernel Functions for Drivers mcopymsg(9F)
NAME
mcopymsg - Copy message contents into a buffer and free message
SYNOPSIS
#include <sys/stream.h>
#include <sys/strsun.h>
void mcopymsg(mblk_t *mp, void *buf);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
mp Message to be copied.
buf Buffer in which to copy.
DESCRIPTION
The mcopymsg() function copies the contents of the specified message into the specified buffer. If the message consists of more than a sin-
gle message block, the contents of each message block are placed consecutively into the buffer. After copying the message contents to buf,
mcopymsg() frees the message mp.
The provided buffer must be large enough to accommodate the message. If the buffer is not large enough, the results are unspecified. The
msgsize(9F) function can be used to calculate the total size of the message beforehand.
RETURN VALUES
None.
CONTEXT
This function can be called from user, kernel or interrupt context.
SEE ALSO
freemsg(9F), msgsize(9F)
STREAMS Programming Guide
SunOS 5.11 16 Oct 2007 mcopymsg(9F)