inspect: Simplify Windows root heuristic code.

Add special is_file_nocase and is_dir_nocase functions and
remove the duplicate checks for files and directories with
different cases.
(cherry picked from commit 5776c145d411e5ae00072ecf422055f3d0bd29e2)

1 files changed, 38 insertions, 12 deletions

diff --git a/src/inspect.c b/src/inspect.c
index 8ab41bfd..09ef2b14 100644
--- a/src/inspect.c
+++ b/src/inspect.c
@@ -1,5 +1,5 @@
 /* libguestfs
- * Copyright (C) 2010 Red Hat Inc.
+ * Copyright (C) 2010-2011 Red Hat Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -229,6 +229,8 @@ static int check_windows_arch (guestfs_h *g, struct inspect_fs *fs);
 static int check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs);
 static int check_windows_system_registry (guestfs_h *g, struct inspect_fs *fs);
 static char *resolve_windows_path_silently (guestfs_h *g, const char *);
+static int is_file_nocase (guestfs_h *g, const char *);
+static int is_dir_nocase (guestfs_h *g, const char *);
 static int extend_fses (guestfs_h *g);
 static int parse_unsigned_int (guestfs_h *g, const char *str);
 static int add_fstab_entry (guestfs_h *g, struct inspect_fs *fs,
@@ -352,17 +354,13 @@ check_filesystem (guestfs_h *g, const char *device)
            guestfs_is_dir (g, "/spool") > 0)
     fs->content = FS_CONTENT_LINUX_VAR;
   /* Windows root? */
-  else if (guestfs_is_file (g, "/AUTOEXEC.BAT") > 0 ||
-           guestfs_is_file (g, "/autoexec.bat") > 0 ||
-           guestfs_is_dir (g, "/Program Files") > 0 ||
-           guestfs_is_dir (g, "/WINDOWS") > 0 ||
-           guestfs_is_dir (g, "/Windows") > 0 ||
-           guestfs_is_dir (g, "/windows") > 0 ||
-           guestfs_is_dir (g, "/WIN32") > 0 ||
-           guestfs_is_dir (g, "/Win32") > 0 ||
-           guestfs_is_dir (g, "/WINNT") > 0 ||
-           guestfs_is_file (g, "/boot.ini") > 0 ||
-           guestfs_is_file (g, "/ntldr") > 0) {
+  else if (is_file_nocase (g, "/AUTOEXEC.BAT") > 0 ||
+           is_dir_nocase (g, "/Program Files") > 0 ||
+           is_dir_nocase (g, "/WINDOWS") > 0 ||
+           is_dir_nocase (g, "/WIN32") > 0 ||
+           is_dir_nocase (g, "/WINNT") > 0 ||
+           is_file_nocase (g, "/boot.ini") > 0 ||
+           is_file_nocase (g, "/ntldr") > 0) {
     fs->is_root = 1;
     fs->content = FS_CONTENT_WINDOWS_ROOT;
     if (check_windows_root (g, fs) == -1)
@@ -1284,6 +1282,34 @@ resolve_windows_path_silently (guestfs_h *g, const char *path)
 }
 
 static int
+is_file_nocase (guestfs_h *g, const char *path)
+{
+  char *p;
+  int r;
+
+  p = resolve_windows_path_silently (g, path);
+  if (!p)
+    return 0;
+  r = guestfs_is_file (g, p);
+  free (p);
+  return r > 0;
+}
+
+static int
+is_dir_nocase (guestfs_h *g, const char *path)
+{
+  char *p;
+  int r;
+
+  p = resolve_windows_path_silently (g, path);
+  if (!p)
+    return 0;
+  r = guestfs_is_dir (g, p);
+  free (p);
+  return r > 0;
+}
+
+static int
 extend_fses (guestfs_h *g)
 {
   size_t n = g->nr_fses + 1;