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Bug#835513: marked as done (rpctrace passes incomplete filename to _hurd_exec_file_name if it finds COMMAND in PATH)

Your message dated Mon, 24 Oct 2016 01:03:11 +0000
with message-id <E1byTfT-0006eR-QI@franck.debian.org>
and subject line Bug#835513: fixed in hurd 1:0.8.git20161023-1
has caused the Debian Bug report #835513,
regarding rpctrace passes incomplete filename to _hurd_exec_file_name if it finds COMMAND in PATH
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
835513: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=835513
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: hurd
Version: 1:0.8.git20160809-1
Severity: normal
File: /bin/rpctrace

If the COMMAND argument of rpctrace does not contain slash, then
rpctrace searches for it in PATH.  If the file found is a script
file, then the interpreter of the script needs to know the file
name so that it can open the file.  However, when rpctrace calls
_hurd_exec_file_name, it specifies COMMAND unchanged as the file
name.  The interpreter then typically does not find the file.

For example, /bin/which in debianutils 4.8 has "#! /bin/sh".
If you run:

  cd /
  PATH=/bin
  rpctrace which

then it shows that dash outputs "/bin/sh: 0: Can't open which"
after calling dir_lookup("which" 1 0) in some directory.
rpctrace should specify the correct file name "/bin/which"
instead; then dash would be able to open the file.

Another, more complex test case:

  mkdir testy
  echo '#! /bin/bash' > testy/prog
  echo 'printf "%s\n" "$0"' >> testy/prog
  chmod +x testy/prog
  PATH=$(pwd)/testy /bin/rpctrace -E PATH=/usr/bin:/bin -o /dev/null prog

Actual output:

  /bin/bash: prog: No such file or directory

Expected output similar to:

  /home/kalle/testy/prog

Fixing this is simple: get prefixed_name from the existing
file_name_path_lookup call, and if it isn't NULL, then use it
instead of *argv and free it afterwards.

AFAIK, the _hurd_exec_file_name patches are not yet in the
upstream Hurd, so I'm filing this in Debian only.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: hurd-i386 (i686-AT386)

Kernel: GNU-Mach 1.7+git20160809-486-dbg/Hurd-0.8
Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages hurd depends on:
ii  hurd-libs0.3  1:0.8.git20160809-1
ii  libblkid1     2.28.1-1
ii  libbz2-1.0    1.0.6-8
ii  libc0.3       2.23-4
ii  libdaemon0    0.14-6
ii  libncursesw5  6.0+20160625-1+b1
ii  libtinfo5     6.0+20160625-1+b1
ii  libx11-6      2:1.6.3-1+b1
ii  netdde        0.0.20150828-3
ii  sysv-rc       2.88dsf-59
ii  xkb-data      2.17-1
ii  zlib1g        1:1.2.8.dfsg-2

Versions of packages hurd recommends:
pn  bf-utf-source  <none>

Versions of packages hurd suggests:
pn  hurd-doc  <none>

-- Configuration Files:
/etc/default/hurd-console changed:
ENABLE='false'
DISPLAY='-d vga'
KBD='-d pc_kbd'
if [ -f /etc/default/keyboard ]
then
  . /etc/default/keyboard
fi
[ -z "$XKBLAYOUT" ] || KBD="$KBD --keymap $XKBLAYOUT"
KBD_REPEAT='--repeat=kbd'
MOUSE='-d pc_mouse --protocol=ps/2'
MOUSE_REPEAT='--repeat=mouse'


-- no debconf information

Attachment: pgpVZVmuVxWqx.pgp
Description: PGP signature


--- End Message ---
--- Begin Message --- 
Source: hurd
Source-Version: 1:0.8.git20161023-1

We believe that the bug you reported is fixed in the latest version of
hurd, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 835513@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Samuel Thibault <sthibault@debian.org> (supplier of updated hurd package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Sun, 23 Oct 2016 22:23:11 +0000
Source: hurd
Binary: hurd-libs0.3 hurd hurd-prof hurd-dev hurd-doc hurd-libs0.3-udeb hurd-udeb
Architecture: source hurd-i386 all
Version: 1:0.8.git20161023-1
Distribution: unstable
Urgency: medium
Maintainer: GNU Hurd Maintainers <debian-hurd@lists.debian.org>
Changed-By: Samuel Thibault <sthibault@debian.org>
Description:
 hurd       - GNU Hurd
 hurd-dev   - GNU Hurd (development files)
 hurd-doc   - GNU Hurd manual
 hurd-libs0.3 - GNU Hurd (libraries)
 hurd-libs0.3-udeb - GNU Hurd (libraries) - udeb (udeb)
 hurd-prof  - GNU Hurd
 hurd-udeb  - GNU Hurd - udeb (udeb)
Closes: 835513 835948 836529
Changes:
 hurd (1:0.8.git20161023-1) unstable; urgency=medium
 .
   [ Samuel Thibault ]
   * New upstream snapshot.
   * Drop gcc-5 Build-Depends, we already build with gcc-6 anyway.
     Closes: Bug#835948.
   * hurd.install.in: Install runsystem.hurd in /etc/hurd
   * patches/{libexec.patch,startup-usr-support.patch}: Update for
     runsystem.hurd. Closes: Bug#836529.
   * control: Don't build hurd-prof in noprof build profile.
   * control: Add missing lsb-base dependency.
 .
   [ Kalle Olavi Niemitalo ]
   * patches/exec_filename_rpctrace.patch: rpctrace: Pass prefixed_name to
     _hurd_exec_file_name. Closes: Bug#835513.
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