Programming

mqd_t mqopen2(const char * pName, 
                    unsigned long Flags, 
                    long  maxMsg, 
                    long  msgSz)
{
   int perms = 0600;          /* permissions */

   int oflags= O_RDWR| O_CREAT;

   int rd=0, wr=0;            /* -r and -w options */

   mqd_t mqd;                 /* returned msg queue descriptor */

   int c;

   char *path="/iothread8";                /* ->first non-option argument */

   struct mq_attr buf;        /* buffer for stat info */

   buf.mq_msgsize = 1024;

   buf.mq_maxmsg = 16;

   /* while */

   //if (optind < argc)

   //   path = argv[optind]; /* first non-option argument */

   //else

   //   { printf("Queue pathname required\n"); return -1; }

   mqd = mq_open(path,oflags,perms,&buf);

   if (-1 != mqd)

   {
    printf("Reached inside the loop\n");

      if ( ! mq_getattr(mqd,&buf) )

      {

         printf("flags: 0x%x  maxmsg: %d  msgsize: %d  curmsgs: %d\n",

         buf.mq_flags, buf.mq_maxmsg, buf.mq_msgsize, buf.mq_curmsgs);

      }

      else

         perror("mq_getattr()");

   }

   else

      perror("mq_open()");
return mqd;
}

utimes("iothread8", {{...}, {...}})     = -1 EFAULT (Bad address)