X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-1.4 required=5.0 	tests=BAYES_00,J_CHICKENPOX_55,J_CHICKENPOX_65
X-Spam-Check-By: sourceware.org
Message-ID: <4A7FC6C1.2070005@realmofthesh.com>
Date: Mon, 10 Aug 2009 00:05:37 -0700
From: Scott <cygwin AT realmofthesh DOT com>
User-Agent: Thunderbird 1.5.0.10 (Windows/20070221)
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Bad system call when calling msgsnd
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

When I compile and run the following example code within cygwin (gcc 
msgsnd.c -o msgsnd), I get an error "Bad system call"

This seems to be a bug; it runs fine under linux.

#include <sys/msg.h>

int main() {
    int msqid = 0;
    int rc;
    size_t msgsz;
    struct {
         long int mtype;
        char     mtext[256];
    } mymsg;

    msgsz = 256;
    mymsg.mtype = 1;
    rc = msgsnd(msqid, &mymsg, msgsz,  IPC_NOWAIT);
    return 0;
}


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple