dosutils: add RIGHTS and finish Novell-style display fixes

- add RIGHTS as a new multi-call DOS utility
- implement Client32 NCP87 effective-rights query helper
- map NCP effective-rights bits to Novell RIGHTS display order
- keep legacy directory-handle based rights lookup as fallback
- match Novell RIGHTS output for directories and files more closely
- remove hardcoded MARS/SYS and SYS display fallbacks from RIGHTS/FLAGDIR
- derive display prefixes from the active network drive where available
- adjust FLAGDIR output formatting to match Novell field alignment
- keep FLAG and SLIST unchanged after checking for hardcoded prefixes

flagdir.c

@@ -75,6 +75,61 @@ static int fd_current_dhandle(uint8 *dhandle)
   return(0);
 }
 
+
+static int fd_current_prefix(char *out, int max)
+{
+  uint8 connid = 0;
+  uint8 dhandle = 0;
+  uint8 flags = 0;
+  int drive;
+  char server[52];
+  char path[260];
+  char volume[32];
+  char *p;
+  int i = 0;
+
+  if (!out || max < 8)
+    return(-1);
+
+  out[0] = '\0';
+
+  drive = fd_get_current_drive();
+  if (get_drive_info((uint8)drive, &connid, &dhandle, &flags))
+    return(-1);
+
+  if (!connid || (flags & 0x80))
+    return(-1);
+
+  server[0] = '\0';
+  if (get_fs_name(connid, server))
+    server[0] = '\0';
+
+  path[0] = '\0';
+  if (get_dir_path(dhandle, path) || !path[0])
+    return(-1);
+
+  p = strchr(path, ':');
+  if (!p)
+    return(-1);
+
+  while (path + i < p && i < (int)sizeof(volume) - 1) {
+    volume[i] = path[i];
+    i++;
+  }
+  volume[i] = '\0';
+
+  if (!volume[0])
+    return(-1);
+
+  if (server[0])
+    sprintf(out, "%s/%s:", server, volume);
+  else
+    sprintf(out, "%s:", volume);
+
+  return(0);
+}
+
+
 static void fd_help(void)
 {
   fprintf(stdout, "386 Usage:  Flagdir [path [option...]]\n");
@@ -118,17 +173,13 @@ static void fd_display(char *path, uint32 attrs)
 
   fd_upcopy(up, path, sizeof(up));
 
-  /*
-   * Novell FLAGDIR style:
-   *
-   *   MARS/SYS:UDIR
-   *           UDIR        System Hidden ...
-   *
-   * For now we match the tested MARS/SYS: environment used by PUBLIC/NPUBLIC.
-   * The NCP logic is independent from this cosmetic header.
-   */
-  fprintf(stdout, "MARS/SYS:%s\n", up);
-  fprintf(stdout, "        %-10s ", up);
+  {
+    char prefix[90];
+    if (fd_current_prefix(prefix, sizeof(prefix)))
+      prefix[0] = '\0';
+    fprintf(stdout, "%s%s     \n", prefix, up);
+  }
+  fprintf(stdout, "    %-12.12s    ", up);
 
   if (!(attrs & FD_DIR_BITS)) {
     fprintf(stdout, "Normal\n");