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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/***
Copyright (c) 1995 Microsoft Corporation
Module Name:
GetUser.c
Abstract:
This is the command line NDS utility for getting the
user name used to log into a specified tree or server.
Author:
Cory West [corywest] 25-Oct-95
***/
#include "ndsapi32.h"
int
_cdecl main(
int argc,
char **argv
) {
NTSTATUS ntstatus;
IO_STATUS_BLOCK IoStatusBlock;
OBJECT_ATTRIBUTES ObjectAttributes;
ACCESS_MASK DesiredAccess = SYNCHRONIZE | FILE_LIST_DIRECTORY;
HANDLE hRdr;
WCHAR DevicePreamble[] = L"\\Device\\Nwrdr\\";
UINT PreambleLength = 14;
WCHAR NameStr[64];
UNICODE_STRING OpenName;
UINT i;
OEM_STRING OemArg;
UNICODE_STRING NdsTree;
WCHAR TreeBuffer[64];
WCHAR Reply[64];
//
// Check the arguments.
//
if ( argc != 2 ) {
printf( "Usage: getuser [tree | server]\n" );
return -1;
}
//
// Copy over the preamble.
//
OpenName.MaximumLength = sizeof( NameStr );
for ( i = 0; i < PreambleLength ; i++ )
NameStr[i] = DevicePreamble[i];
//
// Convert the argument name to unicode.
//
OemArg.Length = strlen( argv[1] );
OemArg.MaximumLength = OemArg.Length;
OemArg.Buffer = argv[1];
NdsTree.Length = 0;
NdsTree.MaximumLength = sizeof( TreeBuffer );
NdsTree.Buffer = TreeBuffer;
RtlOemStringToUnicodeString( &NdsTree, &OemArg, FALSE );
//
// Copy the server or tree name.
//
for ( i = 0 ; i < ( NdsTree.Length / sizeof( WCHAR ) ) ; i++ ) {
NameStr[i + PreambleLength] = NdsTree.Buffer[i];
}
OpenName.Length = ( i * sizeof( WCHAR ) ) +
( PreambleLength * sizeof( WCHAR ) );
OpenName.Buffer = NameStr;
//
// Set up the object attributes.
//
InitializeObjectAttributes( &ObjectAttributes,
&OpenName,
OBJ_CASE_INSENSITIVE,
NULL,
NULL );
ntstatus = NtOpenFile( &hRdr,
DesiredAccess,
&ObjectAttributes,
&IoStatusBlock,
FILE_SHARE_VALID_FLAGS,
FILE_SYNCHRONOUS_IO_NONALERT );
if ( !NT_SUCCESS(ntstatus) )
return ntstatus;
ntstatus = NtFsControlFile( hRdr,
NULL,
NULL,
NULL,
&IoStatusBlock,
FSCTL_NWR_GET_USERNAME,
(PVOID) TreeBuffer,
NdsTree.Length,
(PVOID) Reply,
sizeof( Reply ) );
if ( NT_SUCCESS( ntstatus )) {
NdsTree.Length = (USHORT)IoStatusBlock.Information;
NdsTree.MaximumLength = NdsTree.Length;
NdsTree.Buffer = Reply;
printf( "%wZ", &NdsTree );
}
NtClose( hRdr );
return ntstatus;
}
|
