Re: System V msg queue bugs in latest kernels

[Mark Swanson <swansma@yahoo.com>]

The exact error is in /usr/include/linux/msg.h

The three unsigned shorts should be unsigned int instead.
Would too many things break if this was changed?
Should user-space tools like ipcs be rewritten to use /proc/sysvipc
instead? (I notice that my old 2.2.14 kernel doesn't have
/proc/sysvipc...)

Thanks.

/* one msqid structure for each queue on the system */
struct msqid_ds {
    struct ipc_perm msg_perm;
    struct msg *msg_first;      /* first message on queue */
    struct msg *msg_last;       /* last message in queue */
    __kernel_time_t msg_stime;  /* last msgsnd time */
    __kernel_time_t msg_rtime;  /* last msgrcv time */
    __kernel_time_t msg_ctime;  /* last change time */
    struct wait_queue *wwait;
    struct wait_queue *rwait;
    unsigned short msg_cbytes;  /* current number of bytes on queue */
    unsigned short msg_qnum;    /* number of messages in queue */
    unsigned short msg_qbytes;  /* max number of bytes on queue */
    __kernel_ipc_pid_t msg_lspid;   /* pid of last msgsnd */
    __kernel_ipc_pid_t msg_lrpid;   /* last receive pid */
}; 




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A camel is ugly but useful; it may stink, and it may spit, but it'll get you where you're going. - Larry Wall -

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