source: rtems/cpukit/posix/src/mqueuenametoid.c @ 860c34e

4.104.114.95
Last change on this file since 860c34e was 874297f3, checked in by Ralf Corsepius <ralf.corsepius@…>, on 04/16/04 at 10:01:03

Remove stray white spaces.

  • Property mode set to 100644
File size: 1.5 KB
Line 
1/*
2 *  NOTE:  The structure of the routines is identical to that of POSIX
3 *         Message_queues to leave the option of having unnamed message
4 *         queues at a future date.  They are currently not part of the
5 *         POSIX standard but unnamed message_queues are.  This is also
6 *         the reason for the apparently unnecessary tracking of
7 *         the process_shared attribute.  [In addition to the fact that
8 *         it would be trivial to add pshared to the mq_attr structure
9 *         and have process private message queues.]
10 *
11 *         This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open
12 *         time.
13 *
14 *  $Id$
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <stdarg.h>
22
23#include <pthread.h>
24#include <limits.h>
25#include <errno.h>
26#include <fcntl.h>
27#include <mqueue.h>
28
29#include <rtems/system.h>
30#include <rtems/score/watchdog.h>
31#include <rtems/seterr.h>
32#include <rtems/posix/mqueue.h>
33#include <rtems/posix/time.h>
34
35/*PAGE
36 *
37 *  _POSIX_Message_queue_Name_to_id
38 *
39 *  Look up the specified name and attempt to locate the id
40 *  for the associated message queue.
41 */
42
43int _POSIX_Message_queue_Name_to_id(
44  const char          *name,
45  Objects_Id          *id
46)
47{
48  Objects_Name_or_id_lookup_errors  status;
49
50   if ( !name )
51     return EINVAL;
52
53  if ( !name[0] )
54    return EINVAL;
55
56  if( strlen(name) > PATH_MAX )
57    return ENAMETOOLONG;
58
59  status = _Objects_Name_to_id(
60    &_POSIX_Message_queue_Information, (char *)name, 0, id );
61
62  if ( status == OBJECTS_NAME_OR_ID_LOOKUP_SUCCESSFUL )
63    return 0;
64
65  return ENOENT;
66}
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