ntdll/kernel32: #22

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this patch implements:
- RtlDoesFileExists_U as a stub
- RtlDosSearchPath_U

A+
--
Eric Pouech
diff -u -x '*~' -x '.#*' dlls/ntdll22/ntdll.spec dlls/ntdll/ntdll.spec
--- dlls/ntdll22/ntdll.spec	2003-05-08 13:58:53.000000000 +0200
+++ dlls/ntdll/ntdll.spec	2003-05-08 14:09:49.000000000 +0200
@@ -348,9 +348,9 @@
 @ stub RtlDestroyProcessParameters
 @ stub RtlDestroyQueryDebugBuffer
 @ stdcall RtlDetermineDosPathNameType_U(wstr)
-@ stub RtlDoesFileExists_U #(wstr)
+@ stdcall RtlDoesFileExists_U(wstr)
 @ stdcall RtlDosPathNameToNtPathName_U(wstr ptr ptr ptr)
-@ stub RtlDosSearchPath_U #(wstr wstr wstr long ptr ptr)
+@ stdcall RtlDosSearchPath_U(wstr wstr wstr long ptr ptr)
 @ stdcall RtlDowncaseUnicodeChar(long)
 @ stdcall RtlDowncaseUnicodeString(ptr ptr long)
 @ stdcall RtlDumpResource(ptr)
diff -u -x '*~' -x '.#*' dlls/ntdll22/path.c dlls/ntdll/path.c
--- dlls/ntdll22/path.c	2003-05-08 10:19:51.000000000 +0200
+++ dlls/ntdll/path.c	2003-05-08 10:24:04.000000000 +0200
@@ -56,6 +56,18 @@
     }
 }
 
+/******************************************************************
+ *		RtlDoesFileExists_U
+ *
+ *
+ */
+BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
+{       
+    FIXME("(%s): stub\n", debugstr_w(file_name));
+    
+    return TRUE;
+}
+
 /***********************************************************************
  *             RtlIsDosDeviceName_U   (NTDLL.@)
  *
@@ -222,6 +234,68 @@
 }
 
 /******************************************************************
+ *		RtlDosSearchPath_U
+ *
+ * Searchs a file of name 'name' into a ';' separated list of paths
+ * (stored in paths)
+ * Doesn't seem to search elsewhere than the paths list
+ * Stores the result in buffer (file_part will point to the position
+ * of the file name in the buffer)
+ * FIXME:
+ * - how long shall the paths be ??? (MAX_PATH or larger with \\?\ constructs ???)
+ */
+ULONG WINAPI RtlDosSearchPath_U(LPCWSTR paths, LPCWSTR search, LPCWSTR ext, 
+                                ULONG buffer_size, LPWSTR buffer, 
+                                LPWSTR* file_part)
+{
+    DOS_PATHNAME_TYPE type = RtlDetermineDosPathNameType_U(search);
+    ULONG len = 0;
+
+    if (type == RELATIVE_PATH)
+    {
+        ULONG allocated = 0, needed, filelen;
+        WCHAR*  name = NULL;
+
+        filelen = 1 /* for \ */ + strlenW(search) + 1 /* \0 */;
+
+        if (strchrW(search, '.') != NULL) ext = NULL;
+        if (ext != NULL) filelen += strlenW(ext);
+
+        while (*paths)
+        {
+            LPCWSTR ptr;
+
+            for (needed = 0, ptr = paths; *ptr != 0 && *ptr++ != ';'; needed++);
+            if (needed + filelen > allocated)
+            {
+                name = (WCHAR*)RtlReAllocateHeap(ntdll_get_process_heap(), 0,
+                                                 name, (needed + filelen) * sizeof(WCHAR));
+                if (!name) return 0;
+                allocated = needed + filelen;
+            }
+            memmove(name, paths, needed * sizeof(WCHAR));
+            /* append '\\' if none is present */
+            if (needed > 0 && name[needed - 1] != '\\') name[needed++] = '\\';
+            strcpyW(&name[needed], search);
+            if (ext) strcatW(&name[needed], ext);
+            if (RtlDoesFileExists_U(name))
+            {
+                len = RtlGetFullPathName_U(name, buffer_size, buffer, file_part);
+                break;
+            }
+            paths = ptr;
+        }
+        RtlFreeHeap(ntdll_get_process_heap(), 0, name);
+    }
+    else if (RtlDoesFileExists_U(search))
+    {
+        len = RtlGetFullPathName_U(search, buffer_size, buffer, file_part);
+    }
+
+    return len;
+}
+
+/******************************************************************
  *		get_full_path_helper
  *
  * Helper for RtlGetFullPathName_U
diff -u -x '*~' -x '.#*' include22/winternl.h include/winternl.h
--- include22/winternl.h	2003-05-08 13:59:36.000000000 +0200
+++ include/winternl.h	2003-05-08 16:16:08.000000000 +0200
@@ -971,7 +971,9 @@
 NTSTATUS  WINAPI RtlDestroyEnvironment(PWSTR);
 HANDLE    WINAPI RtlDestroyHeap(HANDLE);
 DOS_PATHNAME_TYPE WINAPI RtlDetermineDosPathNameType_U(PCWSTR);
+BOOLEAN   WINAPI RtlDoesFileExists_U(LPCWSTR);
 BOOLEAN   WINAPI RtlDosPathNameToNtPathName_U(LPWSTR,PUNICODE_STRING,PWSTR*,CURDIR*);
+ULONG     WINAPI RtlDosSearchPath_U(LPCWSTR, LPCWSTR, LPCWSTR, ULONG, LPWSTR, LPWSTR*);
 WCHAR     WINAPI RtlDowncaseUnicodeChar(WCHAR);
 NTSTATUS  WINAPI RtlDowncaseUnicodeString(UNICODE_STRING*,const UNICODE_STRING*,BOOLEAN);
 void      WINAPI RtlDumpResource(LPRTL_RWLOCK);

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