[hbelusca] 67619: [NTVDM]: Fix DOS file find. Introduced in r61507, it was indeed untested...

Author: hbelusca
Date: Sun May 10 12:25:27 2015
New Revision: 67619

URL: http://svn.reactos.org/svn/reactos?rev=67619&view=rev
Log:
[NTVDM]: Fix DOS file find. Introduced in r61507, it was indeed untested...

Modified:
    trunk/reactos/subsystems/mvdm/ntvdm/dos/dem.c

Modified: trunk/reactos/subsystems/mvdm/ntvdm/dos/dem.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/mvdm/ntvdm/dos/…
==============================================================================
--- trunk/reactos/subsystems/mvdm/ntvdm/dos/dem.c	[iso-8859-1] (original)
+++ trunk/reactos/subsystems/mvdm/ntvdm/dos/dem.c	[iso-8859-1] Sun May 10 12:25:27 2015
@@ -546,65 +546,87 @@
 {
     BOOLEAN Success = TRUE;
     WIN32_FIND_DATAA FindData;
+    HANDLE SearchHandle;
     PDOS_FIND_FILE_BLOCK FindFileBlock = (PDOS_FIND_FILE_BLOCK)lpFindFileData;
+
+    /* Start a search */
+    SearchHandle = FindFirstFileA(FileName, &FindData);
+    if (SearchHandle == INVALID_HANDLE_VALUE) return GetLastError();
+
+    do
+    {
+        /* Check the attributes and retry as long as we haven't found a matching file
*/
+        if (((FindData.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN |
+                                           FILE_ATTRIBUTE_SYSTEM |
+                                           FILE_ATTRIBUTE_DIRECTORY))
+             & ~AttribMask))
+        {
+            break;
+        }
+    }
+    while ((Success = FindNextFileA(SearchHandle, &FindData)));
+
+    /* If we failed at some point, close the search and return an error */
+    if (!Success)
+    {
+        FindClose(SearchHandle);
+        return GetLastError();
+    }
 
     /* Fill the block */
     FindFileBlock->DriveLetter  = CurrentDrive + 'A';
     FindFileBlock->AttribMask   = AttribMask;
-    FindFileBlock->SearchHandle = FindFirstFileA(FileName, &FindData);
-    if (FindFileBlock->SearchHandle == INVALID_HANDLE_VALUE) return GetLastError();
+    FindFileBlock->SearchHandle = SearchHandle;
+    FindFileBlock->Attributes   = LOBYTE(FindData.dwFileAttributes);
+    FileTimeToDosDateTime(&FindData.ftLastWriteTime,
+                          &FindFileBlock->FileDate,
+                          &FindFileBlock->FileTime);
+    FindFileBlock->FileSize = FindData.nFileSizeHigh ? 0xFFFFFFFF
+                                                     : FindData.nFileSizeLow;
+    /* Build a short path name */
+    if (*FindData.cAlternateFileName)
+        strncpy(FindFileBlock->FileName, FindData.cAlternateFileName,
sizeof(FindFileBlock->FileName));
+    else
+        GetShortPathNameA(FindData.cFileName, FindFileBlock->FileName,
sizeof(FindFileBlock->FileName));
+
+    return ERROR_SUCCESS;
+}
+
+DWORD
+WINAPI
+demFileFindNext(OUT PVOID lpFindFileData)
+{
+    WIN32_FIND_DATAA FindData;
+    PDOS_FIND_FILE_BLOCK FindFileBlock = (PDOS_FIND_FILE_BLOCK)lpFindFileData;
 
     do
     {
-        /* Check the attributes */
-        if (!((FindData.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN |
-                                            FILE_ATTRIBUTE_SYSTEM |
-                                            FILE_ATTRIBUTE_DIRECTORY))
-            & ~AttribMask))
-        {
-            break;
-        }
-    }
-    while ((Success = FindNextFileA(FindFileBlock->SearchHandle, &FindData)));
-
-    if (!Success) return GetLastError();
-
+        /* Continue searching as long as we haven't found a matching file */
+
+        /* If we failed at some point, close the search and return an error */
+        if (!FindNextFileA(FindFileBlock->SearchHandle, &FindData))
+        {
+            FindClose(FindFileBlock->SearchHandle);
+            return GetLastError();
+        }
+    }
+    while ((FindData.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN |
+                                         FILE_ATTRIBUTE_SYSTEM |
+                                         FILE_ATTRIBUTE_DIRECTORY))
+           & ~FindFileBlock->AttribMask);
+
+    /* Update the block */
     FindFileBlock->Attributes = LOBYTE(FindData.dwFileAttributes);
     FileTimeToDosDateTime(&FindData.ftLastWriteTime,
                           &FindFileBlock->FileDate,
                           &FindFileBlock->FileTime);
     FindFileBlock->FileSize = FindData.nFileSizeHigh ? 0xFFFFFFFF
                                                      : FindData.nFileSizeLow;
-    strcpy(FindFileBlock->FileName, FindData.cAlternateFileName);
-
-    return ERROR_SUCCESS;
-}
-
-DWORD
-WINAPI
-demFileFindNext(OUT PVOID lpFindFileData)
-{
-    WIN32_FIND_DATAA FindData;
-    PDOS_FIND_FILE_BLOCK FindFileBlock = (PDOS_FIND_FILE_BLOCK)lpFindFileData;
-
-    do
-    {
-        if (!FindNextFileA(FindFileBlock->SearchHandle, &FindData))
-            return GetLastError();
-
-        /* Update the block */
-        FindFileBlock->Attributes = LOBYTE(FindData.dwFileAttributes);
-        FileTimeToDosDateTime(&FindData.ftLastWriteTime,
-                              &FindFileBlock->FileDate,
-                              &FindFileBlock->FileTime);
-        FindFileBlock->FileSize = FindData.nFileSizeHigh ? 0xFFFFFFFF
-                                                         : FindData.nFileSizeLow;
-        strcpy(FindFileBlock->FileName, FindData.cAlternateFileName);
-    }
-    while((FindData.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN |
-                                        FILE_ATTRIBUTE_SYSTEM |
-                                        FILE_ATTRIBUTE_DIRECTORY))
-          & ~FindFileBlock->AttribMask);
+    /* Build a short path name */
+    if (*FindData.cAlternateFileName)
+        strncpy(FindFileBlock->FileName, FindData.cAlternateFileName,
sizeof(FindFileBlock->FileName));
+    else
+        GetShortPathNameA(FindData.cFileName, FindFileBlock->FileName,
sizeof(FindFileBlock->FileName));
 
     return ERROR_SUCCESS;
 }