w32: Make gnupg_remove and gnupg_rename_file Unicode aware

* common/sysutils.c (w32_rename): New.
(gnupg_rename_file) [W32]: Support Unicode.
(gnupg_remove) [W32]: Support Unicode.  Drop Windows-CE support.
--

GnuPG-bug-id: 5098
(cherry picked from commit 9a0197b6fe412cfc66b0cece521267180e454416)

1 files changed, 33 insertions, 3 deletions

diff --git a/common/sysutils.c b/common/sysutils.c
index 842efb975..422a783e5 100644
--- a/common/sysutils.c
+++ b/common/sysutils.c
@@ -641,7 +641,7 @@ gnupg_allow_set_foregound_window (pid_t pid)
 int
 gnupg_remove (const char *fname)
 {
-#ifdef HAVE_W32CE_SYSTEM
+#ifdef HAVE_W32_SYSTEM
   int rc;
   wchar_t *wfname;
 
@@ -650,7 +650,7 @@ gnupg_remove (const char *fname)
     rc = 0;
   else
     {
-      rc = DeleteFile (wfname);
+      rc = DeleteFileW (wfname);
       xfree (wfname);
     }
   if (!rc)
@@ -662,6 +662,36 @@ gnupg_remove (const char *fname)
 }
 
 
+/* Helper for gnupg_rename_file.  */
+#ifdef HAVE_W32_SYSTEM
+static int
+w32_rename (const char *oldname, const char *newname)
+{
+  if (any8bitchar (oldname) || any8bitchar (newname))
+    {
+      wchar_t *woldname, *wnewname;
+      int ret;
+
+      woldname = utf8_to_wchar (oldname);
+      if (!woldname)
+        return -1;
+      wnewname = utf8_to_wchar (newname);
+      if (!wnewname)
+        {
+          xfree (wnewname);
+          return -1;
+        }
+      ret = _wrename (woldname, wnewname);
+      xfree (wnewname);
+      xfree (woldname);
+      return ret;
+    }
+  else
+    return rename (oldname, newname);
+}
+#endif /*HAVE_W32_SYSTEM*/
+
+
 /* Wrapper for rename(2) to handle Windows peculiarities.  If
  * BLOCK_SIGNALS is not NULL and points to a variable set to true, all
  * signals will be blocked by calling gnupg_block_all_signals; the
@@ -681,7 +711,7 @@ gnupg_rename_file (const char *oldname, const char *newname, int *block_signals)
 
     gnupg_remove (newname);
   again:
-    if (rename (oldname, newname))
+    if (w32_rename (oldname, newname))
       {
         if (GetLastError () == ERROR_SHARING_VIOLATION)
           {