[1/2] kernel32: Add special case for "." and ".." to GetShortPathName.

[Dmitry Timoshkov]

This patch should fix the regression reported in the bug 34801.
---
 dlls/kernel32/path.c       | 10 ++++++++++
 dlls/kernel32/tests/path.c |  4 ----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/dlls/kernel32/path.c b/dlls/kernel32/path.c
index 1728bfa..2582459 100644
--- a/dlls/kernel32/path.c
+++ b/dlls/kernel32/path.c
@@ -489,6 +489,16 @@ DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath, DWORD shortl
         tmplen = p - (longpath + lp);
         lstrcpynW(tmpshortpath + sp, longpath + lp, tmplen + 1);
 
+        if (tmpshortpath[sp] == '.')
+        {
+            if (tmplen == 1 || (tmplen == 2 && tmpshortpath[sp + 1] == '.'))
+            {
+                sp += tmplen;
+                lp += tmplen;
+                continue;
+            }
+        }
+
         /* Check if the file exists and use the existing short file name */
         goit = FindFirstFileW(tmpshortpath, &wfd);
         if (goit == INVALID_HANDLE_VALUE) goto notfound;
diff --git a/dlls/kernel32/tests/path.c b/dlls/kernel32/tests/path.c
index fe699b2..62236a0 100644
--- a/dlls/kernel32/tests/path.c
+++ b/dlls/kernel32/tests/path.c
@@ -1963,7 +1963,6 @@ todo_wine
     strcpy(buf, "deadbeef");
     ret = GetShortPathNameA(".", buf, MAX_PATH);
     ok(ret, "GetShortPathName error %d\n", GetLastError());
-todo_wine
     ok(!strcmp(buf, "."), "expected ., got %s\n", buf);
 
     strcpy(buf, "deadbeef");
@@ -1974,7 +1973,6 @@ todo_wine
     strcpy(buf, "deadbeef");
     ret = GetShortPathNameA("..", buf, MAX_PATH);
     ok(ret, "GetShortPathName error %d\n", GetLastError());
-todo_wine
     ok(!strcmp(buf, ".."), "expected .., got %s\n", buf);
 
     strcpy(buf, "deadbeef");
@@ -1985,9 +1983,7 @@ todo_wine
     ok(!strcmp(buf, "..\\foo\\file"), "expected ..\\foo\\file, got %s\n", buf);
     strcpy(buf, "deadbeef");
     ret = GetShortPathNameA("..\\foo\\file", buf, MAX_PATH);
-todo_wine
     ok(ret, "GetShortPathName error %d\n", GetLastError());
-todo_wine
     ok(!strcmp(buf, "..\\foo\\file"), "expected ..\\foo\\file, got %s\n", buf);
 
     SetCurrentDirectoryA("..");
-- 
1.8.4.1