Function readMsg

CVE-2022-0995/exploit.c:118–121

}

int readMsg(int msqid, void *msgp, size_t msgsz, long msgtyp)
{
    return msgrcv(msqid, msgp, msgsz - sizeof(long), msgtyp, 0);
}

int writeMsg(int msqid, void *msgp, size_t msgsz, long msgtyp)
{