X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=utils.ml;h=3afcf99be5f1b5cb04c8d56cd3ea71af4424fa4f;hb=fb002571a0432d83a25487c2644fc831180c4443;hp=f9cf35d441ceeeb8defcb56706368342d20b904c;hpb=3ab788383673a8300925a7de6113ef3962378a15;p=guestfs-browser.git

diff --git a/utils.ml b/utils.ml
index f9cf35d..3afcf99 100644
--- a/utils.ml
+++ b/utils.ml
@@ -17,8 +17,7 @@
  *)
 
 open ExtString
-open CamomileLibrary
-open Default.Camomile
+open ExtList
 
 open Printf
 
@@ -65,6 +64,38 @@ let connect_uri () = !connect_uri
 
 let utf8_rarrow = "\xe2\x86\x92"
 
+let pretty_string_of_exn =
+  function
+  | Guestfs.Error str ->
+      "Libguestfs error",
+      sprintf "libguestfs reported an error:
+
+%s
+
+To get more information about libguestfs errors, run guestfs-browser
+with the -x flag on the command line."
+        str
+
+  | Libvirt.Virterror err ->
+      "Libvirt error",
+      sprintf "libvirt reported an error:
+
+%s
+
+To get more information about libvirt errors, run guestfs-browser
+from the command line like this:
+
+LIBVIRT_DEBUG=1 guestfs-browser"
+        (Libvirt.Virterror.to_string err)
+
+  (* Add more exception types here as we come across them.  Last
+   * case below is the catch-all.
+   *)
+  | exn ->
+      let str = Printexc.to_string exn in
+      debug "pretty_string_of_exn: unhandled exception %s" str;
+      "Error", str
+
 let human_size i =
   if i < 1024L then
     sprintf "%Ld" i
@@ -155,7 +186,7 @@ let tmpdir () =
   (* Note this is secure, because if the name already exists, even as a
    * symlink, mkdir(2) will fail.
    *)
-  let tmpdir = Filename.temp_dir_name // sprintf "febootstrap%s.tmp" data in
+  let tmpdir = Filename.temp_dir_name // sprintf "guestfsbrowser%s.tmp" data in
   Unix.mkdir tmpdir 0o700;
   at_exit
     (fun () ->
@@ -163,9 +194,12 @@ let tmpdir () =
        ignore (Sys.command cmd));
   tmpdir
 
-let utf16le = CharEncoding.utf16le
-let utf8 = CharEncoding.utf8
-let recode = CharEncoding.recode_string ~in_enc:utf16le ~out_enc:utf8
+module CE = CamomileLibraryDefault.Camomile.CharEncoding
+module UTF8 = CamomileLibraryDefault.Camomile.UTF8
+module UChar = CamomileLibraryDefault.Camomile.UChar
+let utf16le = CE.utf16le
+let utf8 = CE.utf8
+let recode = CE.recode_string ~in_enc:utf16le ~out_enc:utf8
 
 let windows_string_to_utf8 str =
   let str = recode str in
@@ -176,3 +210,66 @@ let windows_string_to_utf8 str =
     String.sub str 0 (UTF8.last str)
   else
     str
+
+(* Best effort convert hive value to printable string. *)
+let rec printable_hivex_value ?split_long_lines t v =
+  let hex = reg_hex_of_string ?split_long_lines in
+  match t with
+  | Hivex.REG_NONE -> if v = "" then "" else hex v
+  | Hivex.REG_SZ ->
+      (try windows_string_to_utf8 v with _ -> hex v)
+  | Hivex.REG_EXPAND_SZ ->
+      (try windows_string_to_utf8 v with _ -> hex v)
+  | Hivex.REG_BINARY -> hex v
+  | Hivex.REG_DWORD ->
+      (bitmatch Bitstring.bitstring_of_string v with
+       | { i : 32 : littleendian } -> sprintf "%08lx" i
+       | { _ } -> hex v)
+  | Hivex.REG_DWORD_BIG_ENDIAN ->
+      (bitmatch Bitstring.bitstring_of_string v with
+       | { i : 32 : bigendian } -> sprintf "%08lx" i
+       | { _ } -> hex v)
+  | Hivex.REG_LINK -> hex v
+  | Hivex.REG_MULTI_SZ -> (* XXX should be better for this one *)
+      hex v
+  | Hivex.REG_RESOURCE_LIST -> hex v
+  | Hivex.REG_FULL_RESOURCE_DESCRIPTOR -> hex v
+  | Hivex.REG_RESOURCE_REQUIREMENTS_LIST -> hex v
+  | Hivex.REG_QWORD ->
+      (bitmatch Bitstring.bitstring_of_string v with
+       | { i : 64 : littleendian } -> sprintf "%016Lx" i
+       | { _ } -> hex v)
+  | Hivex.REG_UNKNOWN i32 -> hex v
+
+(* Convert binary data to a hex string.  This includes line breaks. *)
+and reg_hex_of_string ?(split_long_lines=false) v =
+  let vs = String.explode v in
+  let vs = List.mapi (
+    fun i c ->
+      sprintf "%s%02x"
+        (if split_long_lines && i mod 16 = 0 then "\n" else "")
+        (int_of_char c)
+  ) vs in
+  String.concat "," vs
+
+let local_file_exists filename =
+  try Unix.access filename [Unix.F_OK]; true
+  with Unix.Unix_error _ -> false
+
+let basename pathname =
+  let len = String.length pathname in
+  try
+    let i = String.rindex pathname '/' in
+    let r = String.sub pathname (i+1) (len-i-1) in
+    if r = "" then "root" else r
+  with
+    Not_found -> pathname
+
+let extension pathname =
+  let len = String.length pathname in
+  try
+    let i = String.rindex pathname '.' in
+    let r = String.sub pathname i (len-i) in
+    r
+  with
+    Not_found -> ""