msvcp120: Add a helper for tr2_sys__Equivalent.

dlls/msvcp120/tests/msvcp120.c

@@ -1230,6 +1230,7 @@ static void test_tr2_sys__Equivalent(void)
     char temp_path[MAX_PATH], current_path[MAX_PATH];
     WCHAR testW[] = {'t','r','2','_','t','e','s','t','_','d','i','r','/','f','1',0};
     WCHAR testW2[] = {'t','r','2','_','t','e','s','t','_','d','i','r','/','f','2',0};
+    WCHAR test_dirW[] = {'t','r','2','_','t','e','s','t','_','d','i','r',0};
     struct {
         char const *path1;
         char const *path2;
@@ -1273,6 +1274,8 @@ static void test_tr2_sys__Equivalent(void)
     ok(val == 1, "tr2_sys__Equivalent(): expect: 1, got %d\n", val);
     val = p_tr2_sys__Equivalent_wchar(testW, testW2);
     ok(val == 0, "tr2_sys__Equivalent(): expect: 0, got %d\n", val);
+    val = p_tr2_sys__Equivalent_wchar(test_dirW, test_dirW);
+    ok(val == -1, "tr2_sys__Equivalent(): expect: -1, got %d\n", val);
 
     ok(DeleteFileA("tr2_test_dir/f1"), "expect tr2_test_dir/f1 to exist\n");
     ok(DeleteFileA("tr2_test_dir/f2"), "expect tr2_test_dir/f2 to exist\n");

dlls/msvcp90/ios.c

@@ -14680,40 +14680,42 @@ ULONGLONG __cdecl tr2_sys__File_size(char const* path)
     return ((ULONGLONG)(fad.nFileSizeHigh) << 32) + fad.nFileSizeLow;
 }
 
+static int equivalent_handles(HANDLE h1, HANDLE h2)
+{
+    int ret;
+    BY_HANDLE_FILE_INFORMATION info1, info2;
+
+    if(h1 == INVALID_HANDLE_VALUE)
+        return h2 == INVALID_HANDLE_VALUE ? -1 : 0;
+    else if(h2 == INVALID_HANDLE_VALUE)
+        return 0;
+
+    ret = GetFileInformationByHandle(h1, &info1) && GetFileInformationByHandle(h2, &info2);
+    if(!ret)
+        return -1;
+    return (info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber
+            && info1.nFileIndexHigh == info2.nFileIndexHigh
+            && info1.nFileIndexLow == info2.nFileIndexLow
+            );
+}
+
 /* ?_Equivalent@sys@tr2@std@@YAHPBD0@Z  */
 /* ?_Equivalent@sys@tr2@std@@YAHPEBD0@Z */
 int __cdecl tr2_sys__Equivalent(char const* path1, char const* path2)
 {
     HANDLE h1, h2;
     int ret;
-    BY_HANDLE_FILE_INFORMATION info1, info2;
+
     TRACE("(%s %s)\n", debugstr_a(path1), debugstr_a(path2));
 
     h1 = CreateFileA(path1, 0, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
             NULL, OPEN_EXISTING, 0, 0);
     h2 = CreateFileA(path2, 0, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
             NULL, OPEN_EXISTING, 0, 0);
-    if(h1 == INVALID_HANDLE_VALUE) {
-        if(h2 == INVALID_HANDLE_VALUE) {
-            return -1;
-        }else {
-            CloseHandle(h2);
-            return 0;
-        }
-    }else if(h2 == INVALID_HANDLE_VALUE) {
-        CloseHandle(h1);
-        return 0;
-    }
-
-    ret = GetFileInformationByHandle(h1, &info1) && GetFileInformationByHandle(h2, &info2);
+    ret = equivalent_handles(h1, h2);
     CloseHandle(h1);
     CloseHandle(h2);
-    if(!ret)
-        return -1;
-    return (info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber
-            && info1.nFileIndexHigh == info2.nFileIndexHigh
-            && info1.nFileIndexLow == info2.nFileIndexLow
-            );
+    return ret;
 }
 
 /* ?_Current_get@sys@tr2@std@@YAPADAAY0BAE@D@Z */
@@ -15617,34 +15619,17 @@ int __cdecl tr2_sys__Equivalent_wchar(WCHAR const* path1, WCHAR const* path2)
 {
     HANDLE h1, h2;
     int ret;
-    BY_HANDLE_FILE_INFORMATION info1, info2;
+
     TRACE("(%s %s)\n", debugstr_w(path1), debugstr_w(path2));
 
     h1 = CreateFileW(path1, 0, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
             NULL, OPEN_EXISTING, 0, 0);
     h2 = CreateFileW(path2, 0, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
             NULL, OPEN_EXISTING, 0, 0);
-    if(h1 == INVALID_HANDLE_VALUE) {
-        if(h2 == INVALID_HANDLE_VALUE) {
-            return -1;
-        }else {
-            CloseHandle(h2);
-            return 0;
-        }
-    }else if(h2 == INVALID_HANDLE_VALUE) {
-        CloseHandle(h1);
-        return 0;
-    }
-
-    ret = GetFileInformationByHandle(h1, &info1) && GetFileInformationByHandle(h2, &info2);
+    ret = equivalent_handles(h1, h2);
     CloseHandle(h1);
     CloseHandle(h2);
-    if(!ret)
-        return -1;
-    return (info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber
-            && info1.nFileIndexHigh == info2.nFileIndexHigh
-            && info1.nFileIndexLow == info2.nFileIndexLow
-            );
+    return ret;
 }
 
 /* ?_Current_get@sys@tr2@std@@YAPA_WAAY0BAE@_W@Z */