stat() fix for write but not read permission on a directory.

9b9f19d missed one corner case where we do actually need to
stat the directory file and not just the name without the .DIR. If
we have write but not read access to the directory, then
stat('foo.DIR') succeeds but stat('foo') fails.  So if the first
stat failed fileify and try again.

vms/vms.c

@@ -12628,7 +12628,8 @@ Perl_flex_stat_int(pTHX_ const char *fspec, Stat_t *statbufp, int lstat_flag)
     const char *save_spec;
     char *ret_spec;
     int retval = -1;
-    int efs_hack = 0;
+    char efs_hack = 0;
+    char already_fileified = 0;
     dSAVEDERRNO;
 
     if (!fspec) {
@@ -12672,7 +12673,28 @@ Perl_flex_stat_int(pTHX_ const char *fspec, Stat_t *statbufp, int lstat_flag)
     else
         retval = lstat(fspec, &statbufp->crtl_stat);
 
-    save_spec = fspec;
+    if (!retval) {
+        save_spec = fspec;
+    }
+    else {
+        /* In the odd case where we have write but not read access
+         * to a directory, stat('foo.DIR') works but stat('foo') doesn't.
+         */
+        fileified = PerlMem_malloc(VMS_MAXRSS);
+        if (fileified == NULL)
+              _ckvmssts_noperl(SS$_INSFMEM);
+
+        ret_spec = int_fileify_dirspec(fspec, fileified, NULL); 
+        if (ret_spec != NULL) {
+            if (lstat_flag == 0)
+                retval = stat(fileified, &statbufp->crtl_stat);
+            else
+                retval = lstat(fileified, &statbufp->crtl_stat);
+            save_spec = fileified;
+            already_fileified = 1;
+        }
+    }
+
     if (retval && vms_bug_stat_filename) {
 
         temp_fspec = PerlMem_malloc(VMS_MAXRSS);
@@ -12749,7 +12771,7 @@ Perl_flex_stat_int(pTHX_ const char *fspec, Stat_t *statbufp, int lstat_flag)
       /* If we've got a directory, save a fileified, expanded version of it
        * in st_devnam.  If not a directory, just an expanded version.
        */
-      if (S_ISDIR(statbufp->st_mode)) {
+      if (S_ISDIR(statbufp->st_mode) && !already_fileified) {
           fileified = PerlMem_malloc(VMS_MAXRSS);
           if (fileified == NULL)
               _ckvmssts_noperl(SS$_INSFMEM);