query...

[raja-2]

   Hi,
      I am Creating a posix message queue using the following code.


#include <stdio.h>
#include <stdlib.h>
#include <mqueue.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>

int main(int argc,char *argv[])
{
    mqd_t mq_des;
    mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR
| S_IRGRP | S_IROTH , NULL);
    if(mq_des < 0)
    {
        printf("Unable To Create MsgQ\n");
        perror("mq_open");
        return mq_des;
    }
    printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
    return mq_des;
}


and I after compiling I am giving

./a.out /root/Desktop/msgq1


But It is giving as unable to create message queue and showing error as
'permission denied'

Would you please help me.
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[Nikhil Dharashivkar]

I think it could be root permissions problem. Are you running this
binary as root user ?


On 8/9/05, raja <vnagaraju@...> wrote:

>    Hi,
>       I am Creating a posix message queue using the following code.
>
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <mqueue.h>
> #include <errno.h>
> #include <string.h>
> #include <fcntl.h>
> #include <sys/stat.h>
> #include <sys/types.h>
>
> int main(int argc,char *argv[])
> {
>     mqd_t mq_des;
>     mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR
> | S_IRGRP | S_IROTH , NULL);
>     if(mq_des < 0)
>     {
>         printf("Unable To Create MsgQ\n");
>         perror("mq_open");
>         return mq_des;
>     }
>     printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
>     return mq_des;
> }
>
>
> and I after compiling I am giving
>
> ./a.out /root/Desktop/msgq1
>
>
> But It is giving as unable to create message queue and showing error as
> 'permission denied'
>
> Would you please help me.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@...
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>

--
Thanks and Regards,
         Nikhil.
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[sudheer-3]

First -> you hit the wrong ML
Second -> The message queue exists and the permissions specified by
oflag are denied, or the message queue does not exist and permission to
create the message queue is denied


-----Original Message-----
From: linux-kernel-owner@...
[mailto:linux-kernel-owner@...] On Behalf Of raja
Sent: Tuesday, August 09, 2005 3:59 PM
To: linux-kernel@...
Subject: query...

   Hi,
      I am Creating a posix message queue using the following code.


#include <stdio.h>
#include <stdlib.h>
#include <mqueue.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>

int main(int argc,char *argv[])
{
    mqd_t mq_des;
    mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR

| S_IRGRP | S_IROTH , NULL);
    if(mq_des < 0)
    {
        printf("Unable To Create MsgQ\n");
        perror("mq_open");
        return mq_des;
    }
    printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
    return mq_des;
}


and I after compiling I am giving

./a.out /root/Desktop/msgq1


But It is giving as unable to create message queue and showing error as
'permission denied'

Would you please help me.
-
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in
the body of a message to majordomo@...
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


-
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