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Mail Archives: cygwin/2009/08/10/03:02:23

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Date: Mon, 10 Aug 2009 00:05:37 -0700
From: Scott <cygwin AT realmofthesh DOT com>
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To: cygwin AT cygwin DOT com
Subject: Bad system call when calling msgsnd
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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;
}


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