sharutils-4.4 unshar not recognising files

[Daniel]

Some confusing bug associated with:
https://bugs.gentoo.org/show_bug.cgi?id=101904

Source file is:

ftp://ftp.cwi.nl/pub/dik/macutil2.0b3.shar.Z
(yes I know - its real old)

After you unzip this (just with gzip) an unshar of it generates some weird 
results as follows:

$ ls -la
total 476
drwx------  2 dan users   4096 Aug 10 23:35 .
drwxr-xr-x  6 dan users   4096 Aug 10 23:10 ..
-rw-r--r--  1 dan users 472982 Aug 10 23:29 macutil2.0b3.shar

$ unshar --version
unshar (GNU sharutils) 4.4
Copyright (C) 1994, 1995, 1996, 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ unshar --help
Usage: unshar [OPTION]... [FILE]...
Mandatory arguments to long options are mandatory for short options too.

  -d, --directory=DIRECTORY   change to DIRECTORY before unpacking
  -c, --overwrite             pass -c to shar script for overwriting files
  -e, --exit-0                same as `--split-at="exit 0"'
  -E, --split-at=STRING       split concatenated shars after STRING
  -f, --force                 same as `-c'
      --help                  display this help and exit
      --version               output version information and exit

If no FILE, standard input is read.
Report bugs to <address@hidden>.
$ unshar macutil2.0b3.shar
unshar: /var/tmp/portage/macutil-2.0_beta3/work/LINUX_PORTAGE_WRITABLE=yes: No 
such file or directory

$ unshar -c macutil2.0b3.shar
unshar: /var/tmp/portage/macutil-2.0_beta3/work/AUTO_SYMLINK=no: No such file 
or directory

$ unshar -f macutil2.0b3.shar
unshar: /var/tmp/portage/macutil-2.0_beta3/work/AUTO_SYMLINK=no: No such file 
or directory

$ unshar -e macutil2.0b3.shar
unshar: /var/tmp/portage/macutil-2.0_beta3/work/AUTO_SYMLINK=no: No such file 
or directory

$ env
...
LINUX_PORTAGE_WRITABLE=yes
AUTO_SYMLINK=no
...


Standard input does work however:

$ unshar < macutil2.0b3.shar
standard input:
shar: creating directory 'macutil'
shar: entering directory 'macutil'
shar: extracting 'README' (23244 characters)
shar: extracting 'makefile' (2143 characters)
shar: creating directory 'crc'
shar: entering directory 'crc'

an strace confirms this behaviour

getcwd("/var/tmp/portage/macutil-2.0_beta3/work", 128) = 40
open("/var/tmp/portage/macutil-2.0_beta3/work/LINUX_PORTAGE_WRITABLE=yes", 
O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)



-- 
Daniel Black <address@hidden>
Gentoo Crypto/PPC/dev-embedded/Forensics/NetMon

pgpimsfup2iL3.pgp
Description: PGP signature