[pschweitzer] 74444: [CMD] Fix and simplify implementation of "IF EXIST": - Don't make any difference between wildcard search and normal search - This fixes handling DOS devices search (ie, IF EXIS...

Author: pschweitzer
Date: Mon May  1 21:14:38 2017
New Revision: 74444

URL: http://svn.reactos.org/svn/reactos?rev=74444&view=rev
Log:
[CMD]
Fix and simplify implementation of "IF EXIST":
- Don't make any difference between wildcard search and normal search
- This fixes handling DOS devices search (ie, IF EXIST C:\ReactOS\NUL now works)
- This fixes handling pagefile.sys without requiring specifing rights
- Also fix handling directory search, terminated with a \

CORE-11784

Modified:
    trunk/reactos/base/shell/cmd/if.c

Modified: trunk/reactos/base/shell/cmd/if.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/if.c?rev=74…
==============================================================================
--- trunk/reactos/base/shell/cmd/if.c	[iso-8859-1] (original)
+++ trunk/reactos/base/shell/cmd/if.c	[iso-8859-1] Mon May  1 21:14:38 2017
@@ -114,23 +114,36 @@
     }
     else if (Cmd->If.Operator == IF_EXIST)
     {
+        BOOL IsDir;
+        INT Size;
+        WIN32_FIND_DATA f;
+        HANDLE hFind;
+
         /* IF EXIST filename: check if file exists (wildcards allowed) */
         StripQuotes(Right);
 
-        if (_tcschr(Right, _T('*')) || _tcschr(Right, _T('?')))
+        Size = _tcslen(Right);
+        IsDir = (Right[Size - 1] == '\\');
+        if (IsDir)
+            Right[Size - 1] = 0;
+
+
+        hFind = FindFirstFile(Right, &f);
+        if (hFind != INVALID_HANDLE_VALUE)
         {
-            WIN32_FIND_DATA f;
-            HANDLE hFind = FindFirstFile(Right, &f);
-            if (hFind != INVALID_HANDLE_VALUE)
+            if (IsDir)
+            {
+                result = ((f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ==
FILE_ATTRIBUTE_DIRECTORY);
+            }
+            else
             {
                 result = TRUE;
-                FindClose(hFind);
             }
+            FindClose(hFind);
         }
-        else
-        {
-            result = (GetFileAttributes(Right) != INVALID_FILE_ATTRIBUTES);
-        }
+
+        if (IsDir)
+            Right[Size - 1] = '\\';
     }
     else
     {