Jacek Caban : winemac: Directly use wine_nt_to_unix_file_name.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 174e0ba090c857db7cf28c33eaada8a8efa1565e
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=174e0ba090c857db7cf28c33eaada8a8efa1565e

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Mon May 23 20:28:11 2022 +0200

winemac: Directly use wine_nt_to_unix_file_name.

Signed-off-by: Jacek Caban <jacek at codeweavers.com>

---

 dlls/winemac.drv/clipboard.c | 81 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 78 insertions(+), 3 deletions(-)

diff --git a/dlls/winemac.drv/clipboard.c b/dlls/winemac.drv/clipboard.c
index 93706680470..cdb4e5e02a8 100644
--- a/dlls/winemac.drv/clipboard.c
+++ b/dlls/winemac.drv/clipboard.c
@@ -24,6 +24,8 @@
 
 #include "config.h"
 
+#include "ntstatus.h"
+#define WIN32_NO_STATUS
 #include "macdrv.h"
 #include "winuser.h"
 #include "shellapi.h"
@@ -588,6 +590,78 @@ static WCHAR *get_dos_file_name(const char *path)
 }
 
 
+/***********************************************************************
+ *           get_nt_pathname
+ *
+ * Simplified version of RtlDosPathNameToNtPathName_U.
+ */
+static BOOL get_nt_pathname(const WCHAR *name, UNICODE_STRING *nt_name)
+{
+    static const WCHAR ntprefixW[] = {'\\','?','?','\\'};
+    static const WCHAR uncprefixW[] = {'U','N','C','\\'};
+    size_t len = lstrlenW(name);
+    WCHAR *ptr;
+
+    nt_name->MaximumLength = (len + 8) * sizeof(WCHAR);
+    if (!(ptr = malloc(nt_name->MaximumLength))) return FALSE;
+    nt_name->Buffer = ptr;
+
+    memcpy(ptr, ntprefixW, sizeof(ntprefixW));
+    ptr += ARRAYSIZE(ntprefixW);
+    if (name[0] == '\\' && name[1] == '\\')
+    {
+        if ((name[2] == '.' || name[2] == '?') && name[3] == '\\')
+        {
+            name += 4;
+            len -= 4;
+        }
+        else
+        {
+            memcpy(ptr, uncprefixW, sizeof(uncprefixW));
+            ptr += ARRAYSIZE(uncprefixW);
+            name += 2;
+            len -= 2;
+        }
+    }
+    memcpy(ptr, name, (len + 1) * sizeof(WCHAR));
+    ptr += len;
+    nt_name->Length = (ptr - nt_name->Buffer) * sizeof(WCHAR);
+    return TRUE;
+}
+
+
+/* based on wine_get_unix_file_name */
+static char *get_unix_file_name(const WCHAR *dosW)
+{
+    UNICODE_STRING nt_name;
+    OBJECT_ATTRIBUTES attr;
+    NTSTATUS status;
+    ULONG size = 256;
+    char *buffer;
+
+    if (!get_nt_pathname(dosW, &nt_name)) return NULL;
+    InitializeObjectAttributes(&attr, &nt_name, 0, 0, NULL);
+    for (;;)
+    {
+        if (!(buffer = malloc(size)))
+        {
+            free(nt_name.Buffer);
+            return NULL;
+        }
+        status = wine_nt_to_unix_file_name(&attr, buffer, &size, FILE_OPEN_IF);
+        if (status != STATUS_BUFFER_TOO_SMALL) break;
+        free(buffer);
+    }
+    free(nt_name.Buffer);
+    if (status)
+    {
+        free(buffer);
+        return NULL;
+    }
+    return buffer;
+}
+
+
 /**************************************************************************
  *              import_nsfilenames_to_hdrop
  *
@@ -861,7 +935,7 @@ static CFDataRef export_hdrop_to_filenames(void *data, size_t size)
         TRACE("    %s\n", dropfiles->fWide ? debugstr_w(p) : debugstr_a(p));
 
         if (dropfiles->fWide)
-            unixname = wine_get_unix_file_name(p);
+            unixname = get_unix_file_name(p);
         else
         {
             int len = MultiByteToWideChar(CP_ACP, 0, p, -1, NULL, 0);
@@ -875,7 +949,7 @@ static CFDataRef export_hdrop_to_filenames(void *data, size_t size)
                 }
 
                 MultiByteToWideChar(CP_ACP, 0, p, -1, buffer, buffer_len);
-                unixname = wine_get_unix_file_name(buffer);
+                unixname = get_unix_file_name(buffer);
             }
             else
                 unixname = NULL;
@@ -893,13 +967,14 @@ static CFDataRef export_hdrop_to_filenames(void *data, size_t size)
             p = (char*)p + strlen(p) + 1;
 
         filename = CFStringCreateWithFileSystemRepresentation(NULL, unixname);
-        HeapFree(GetProcessHeap(), 0, unixname);
         if (!filename)
         {
             WARN("failed to create CFString from Unix path %s\n", debugstr_a(unixname));
+            free(unixname);
             goto done;
         }
 
+        free(unixname);
         CFArrayAppendValue(filenames, filename);
         CFRelease(filename);
     }