xref: /reactos/sdk/lib/3rdparty/libwine/path.c (revision 299e4305)
1 /* Copyright 1993 Erik Bos
2  * Copyright 1996, 2004 Alexandre Julliard
3  * Copyright 2003 Eric Pouech
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18  *
19  */
20 
21 #include <windef.h>
22 #include <winbase.h>
23 #include <winnls.h>
24 
25 #include <wine/winternl.h>
26 
27 #include <wine/debug.h>
28 WINE_DEFAULT_DEBUG_CHANNEL(path);
29 
30 static inline BOOL set_ntstatus( NTSTATUS status )
31 {
32     if (status) SetLastError( RtlNtStatusToDosError( status ));
33     return !status;
34 }
35 
36 /***********************************************************************
37  *           wine_get_dos_file_name (KERNEL32.@) Not a Windows API
38  *
39  * Return the full DOS file name for a given Unix path.
40  * Returned buffer must be freed by caller.
41  */
42 WCHAR * CDECL wine_get_dos_file_name( LPCSTR str )
43 {
44     UNICODE_STRING nt_name;
45     NTSTATUS status;
46     WCHAR *buffer;
47     SIZE_T len = strlen(str) + 1;
48 
49     if (str[0] != '/')  /* relative path name */
50     {
51         if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return NULL;
52         MultiByteToWideChar( CP_UNIXCP, 0, str, len, buffer, len );
53         status = RtlDosPathNameToNtPathName_U_WithStatus( buffer, &nt_name, NULL, NULL );
54         RtlFreeHeap( GetProcessHeap(), 0, buffer );
55         if (!set_ntstatus( status )) return NULL;
56         buffer = nt_name.Buffer;
57         len = nt_name.Length / sizeof(WCHAR) + 1;
58     }
59     else
60     {
61 #ifdef __REACTOS__
62         ERR("Got absolute UNIX path name in function wine_get_dos_file_name. This is not UNIX. Please fix the caller!\n");
63         ERR("File name: %s\n", str);
64         /* Return empty path */
65         return RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, 1 * sizeof(UNICODE_NULL));
66 #else
67         len += 8;  /* \??\unix prefix */
68         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return NULL;
69         if (!set_ntstatus( wine_unix_to_nt_file_name( str, buffer, &len )))
70         {
71             HeapFree( GetProcessHeap(), 0, buffer );
72             return NULL;
73         }
74 #endif
75     }
76     if (buffer[5] == ':')
77     {
78         /* get rid of the \??\ prefix */
79         /* FIXME: should implement RtlNtPathNameToDosPathName and use that instead */
80         memmove( buffer, buffer + 4, (len - 4) * sizeof(WCHAR) );
81     }
82     else buffer[1] = '\\';
83     return buffer;
84 }
85