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Communications Technical Reference, Volume 2

msgdsize Utility

Purpose

Gets the number of data bytes in a message.

Syntax

int
msgdsize(bp)
register mblk_t *bp;

Description

The msgdsize utility returns the number of bytes of data in the message pointed to by the bp parameter. Only bytes included in data blocks of type M_DATA are included in the total.

Parameters

bp Specifies the message from which to get the number of bytes.

Return Values

The msgdsize utility returns the number of bytes of data in a message.

Implementation Specifics

This utility is part of STREAMS Kernel Extensions.

Related Information

List of Streams Programming References, Understanding STREAMS Messages in AIX Version 4.3 Communications Programming Concepts.


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