msgrecv.c revision 3f54fd611f536639ec30dd53c48e5ec1897cc7d9
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1990-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* syscall message server side receipt
*/
#include "msglib.h"
/*
* read and blast message from fd into msg
*/
ssize_t
msgrecv(int fd, register Msg_call_t* msg)
{
register ssize_t n;
if ((n = msgread(fd, msg->data, sizeof(msg->data))) <= 0)
return n;
msg->size = n;
return msgblast(msg);
}