GNU bug report logs - #55719
29.0.50; various bindat strz bugs

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Richard Hansen <rhansen <at> rhansen.org>
Subject: bug#55719: closed (Re: [PATCH] bindat strz fixes)
Date: Sun, 05 Jun 2022 19:31:02 +0000

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Your bug report

#55719: 29.0.50; various bindat strz bugs

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 55719 <at> debbugs.gnu.org.

-- 
55719: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=55719
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Richard Hansen <rhansen <at> rhansen.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 55719-done <at> debbugs.gnu.org
Subject: Re: [PATCH] bindat strz fixes
Date: Sun, 5 Jun 2022 15:30:28 -0400

On 6/1/22 22:52, Stefan Monnier wrote:
> I've installed the rest of the patch series into `master`, thanks.

Thanks! I'm marking this bug as done.

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From: Richard Hansen <rhansen <at> rhansen.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; various bindat strz bugs
Date: Mon, 30 May 2022 00:11:54 -0400

There are a number of bugs with strz packing and unpacking in the bindat
package:

(require 'bindat)
(require 'ert)
(let ((s (bindat-type :pack-var v (x strz :pack-val v) :unpack-val x)))
  ;; Bug: length doesn't count the null terminator.
  (ert-deftest t1 () (should (equal (bindat-length s "x") 2)))
  ;; Bug: pack doesn't include the null terminator.
  (ert-deftest t2 () (should (equal (bindat-pack s "x") "\170\0")))
  ;; Bug: unpack throws (wrong-type-argument number-or-marker-p nil)
  (ert-deftest t3 () (should (equal (bindat-unpack s "\170\0") "x"))))
(let ((s (bindat-type :pack-var v (x strz 2 :pack-val v) :unpack-val x)))
  ;; Bug: pack doesn't always include the null terminator.
  (ert-deftest t4 () (should (equal (bindat-pack s "xx") "\170\0"))))
(let ((s '((x strz 2))))
  ;; Bug: pack doesn't always include the null terminator.
  (ert-deftest t5 () (should (equal (bindat-pack s '((x . "xx"))) "\170\0"))))

In addition to the above issues, legacy-style specs with no strz length,
such as '((x strz)), do not work. But I suspect length only became
optional when `bindat-type' was introduced, so that's probably not an
issue.

In GNU Emacs 29.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.20, cairo version 1.16.0)
 of 2022-05-29 built on sprinkles
Repository revision: 7f7acf395697e4cfa470cfa2993b70c2308e95c1
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12013000
System Description: Ubuntu 20.04.4 LTS

Configured using:
 'configure --build=x86_64-linux-gnu --prefix=/usr
 '--includedir=${prefix}/include' '--mandir=${prefix}/share/man'
 '--infodir=${prefix}/share/info' --sysconfdir=/etc --localstatedir=/var
 --disable-option-checking --disable-silent-rules
 '--libdir=${prefix}/lib/x86_64-linux-gnu'
 '--libexecdir=${prefix}/lib/x86_64-linux-gnu' --disable-maintainer-mode
 --disable-dependency-tracking --prefix=/usr --sharedstatedir=/var/lib
 --with-modules=yes --with-x=yes --with-x-toolkit=gtk3
 --with-xwidgets=yes --without-pgtk'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS X11 XDBE XIM XINPUT2 XPM XWIDGETS GTK3 ZLIB

Important settings:
  value of $LC_MONETARY: en_US.UTF-8
  value of $LC_NUMERIC: en_US.UTF-8
  value of $LC_TIME: root.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media rmc puny
dired dired-loaddefs rfc822 mml mml-sec epa derived epg rfc6068
epg-config gnus-util text-property-search mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047
rfc2045 ietf-drums mm-util mail-prsvr mail-utils ffap thingatpt
url-parse auth-source eieio eieio-core eieio-loaddefs password-cache
json url-vars help-fns radix-tree cl-print cl-extra ert map seq pp ewoc
debug backtrace help-mode find-func bindat byte-opt bytecomp
byte-compile cconv pcase cl-seq cl-macs gv time-date subr-x cl-loaddefs
cl-lib iso-transl tooltip eldoc paren electric uniquify ediff-hook
vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode lisp-mode prog-mode register
page tab-bar menu-bar rfn-eshadow isearch easymenu timer select
scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors
frame minibuffer nadvice simple cl-generic indonesian philippine cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs faces cus-face macroexp files window
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget keymap hashtable-print-readable backquote threads
xwidget-internal dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit
xinput2 x multi-tty make-network-process emacs)

Memory information:
((conses 16 74917 10902)
 (symbols 48 8201 0)
 (strings 32 23138 2251)
 (string-bytes 1 732663)
 (vectors 16 16128)
 (vector-slots 8 211715 13201)
 (floats 8 98 309)
 (intervals 56 475 0)
 (buffers 992 14))

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