1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/**
* @file
*
* @brief Create a Special or Ordinary File
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/stat.h>
#include <rtems/libio_.h>
int rtems_filesystem_mknod(
const rtems_filesystem_location_info_t *parentloc,
const char *name,
size_t namelen,
mode_t mode,
dev_t dev
)
{
int rv = 0;
mode &= ~rtems_filesystem_umask;
switch (mode & S_IFMT) {
case S_IFBLK:
case S_IFCHR:
case S_IFDIR:
case S_IFIFO:
case S_IFREG:
break;
default:
errno = EINVAL;
rv = -1;
break;
}
if ( rv == 0 ) {
const rtems_filesystem_operations_table *ops = parentloc->mt_entry->ops;
rv = (*ops->mknod_h)( parentloc, name, namelen, mode, dev );
}
return rv;
}
/**
* This routine is not defined in the POSIX 1003.1b standard but is
* commonly supported on most UNIX and POSIX systems. It is the
* foundation for creating file system objects.
*/
int mknod( const char *path, mode_t mode, dev_t dev )
{
int rv = 0;
rtems_filesystem_eval_path_context_t ctx;
int eval_flags = RTEMS_FS_FOLLOW_LINK
| RTEMS_FS_MAKE
| RTEMS_FS_EXCLUSIVE
| (S_ISDIR(mode) ? RTEMS_FS_ACCEPT_RESIDUAL_DELIMITERS : 0);
const rtems_filesystem_location_info_t *currentloc =
rtems_filesystem_eval_path_start( &ctx, path, eval_flags );
rv = rtems_filesystem_mknod(
currentloc,
rtems_filesystem_eval_path_get_token( &ctx ),
rtems_filesystem_eval_path_get_tokenlen( &ctx ),
mode,
dev
);
rtems_filesystem_eval_path_cleanup( &ctx );
return rv;
}
|
