shell32: PathResolve(file, NULL, ...) should not look in the current directory.

dlls/shell32/shellpath.c

@@ -695,7 +695,7 @@ static BOOL PathResolveA(char *path, const char **dirs, DWORD flags)
     {
         if (PathFindOnPathExA(path, dirs, dwWhich))
             return TRUE;
-        if (PathFileExistsDefExtA(path, dwWhich))
+        if (!is_file_spec && PathFileExistsDefExtA(path, dwWhich))
             return TRUE;
         if (!is_file_spec) GetFullPathNameA(path, MAX_PATH, path, NULL);
         SetLastError(ERROR_FILE_NOT_FOUND);
@@ -724,7 +724,7 @@ static BOOL PathResolveW(WCHAR *path, const WCHAR **dirs, DWORD flags)
     {
         if (PathFindOnPathExW(path, dirs, dwWhich))
             return TRUE;
-        if (PathFileExistsDefExtW(path, dwWhich))
+        if (!is_file_spec && PathFileExistsDefExtW(path, dwWhich))
             return TRUE;
         if (!is_file_spec) GetFullPathNameW(path, MAX_PATH, path, NULL);
         SetLastError(ERROR_FILE_NOT_FOUND);

dlls/shell32/tests/shellpath.c

@@ -2942,7 +2942,8 @@ if (0) { /* crashes on native */
 static void test_PathResolve(void)
 {
     WCHAR testfile[MAX_PATH], testfile_lnk[MAX_PATH], regedit_in_testdir[MAX_PATH], regedit_cmd[MAX_PATH];
-    WCHAR tempdir[MAX_PATH], path[MAX_PATH];
+    WCHAR tempdir[MAX_PATH], path[MAX_PATH], curdir[MAX_PATH];
+    WCHAR argv0_dir[MAX_PATH] = {0}, argv0_base[MAX_PATH] = {0}, *argv0_basep = NULL;
     const WCHAR *dirs[2] = { tempdir, NULL };
     HANDLE file, file2;
     BOOL ret;
@@ -3013,6 +3014,15 @@ static void test_PathResolve(void)
         return;
     }
 
+    ret = GetModuleFileNameW(NULL, argv0_dir, sizeof(argv0_dir));
+    ok(ret != 0 && ret < sizeof(argv0_dir), "GetModuleFileName failed\n");
+    if (ret != 0 && ret < sizeof(argv0_dir))
+    {
+        argv0_basep = wcsrchr(argv0_dir, '\\');
+        *argv0_basep = 0;
+        argv0_basep++;
+    }
+
     GetTempPathW(MAX_PATH, tempdir);
 
     lstrcpyW(testfile, tempdir);
@@ -3038,6 +3048,28 @@ static void test_PathResolve(void)
     ok(!lstrcmpiW(path, L"C:\\windows\\regedit.exe") || !lstrcmpiW(path, L"C:\\windows\\system32\\regedit.exe"),
             "unexpected path %s\n", wine_dbgstr_w(path));
 
+    /* show that PathResolve doesn't check current directory */
+    if (argv0_basep)
+    {
+        WCHAR *ext;
+        lstrcpyW(argv0_base, argv0_basep);
+        GetCurrentDirectoryW(MAX_PATH, curdir);
+        SetCurrentDirectoryW(argv0_dir);
+        ret = pPathResolve(argv0_base, NULL, PRF_VERIFYEXISTS | PRF_TRYPROGRAMEXTENSIONS);
+        ok(!ret, "resolving argv0 succeeded unexpectedly, result: %s\n", wine_dbgstr_w(argv0_base));
+
+        lstrcpyW(argv0_base, argv0_basep);
+        if ((ext = wcsrchr(argv0_base, '.')))
+        {
+            *ext = 0;
+            ret = pPathResolve(argv0_base, NULL, PRF_VERIFYEXISTS | PRF_TRYPROGRAMEXTENSIONS);
+            ok(!ret, "resolving argv0 without extension succeeded unexpectedly, result: %s\n", wine_dbgstr_w(argv0_base));
+        }
+        SetCurrentDirectoryW(curdir);
+    }
+    else
+        win_skip("couldn't get module filename\n");
+
     for (i = 0; i < ARRAY_SIZE(tests); i++)
     {
         winetest_push_context("test %d", i);