Package: par2
Version: 0.4-2
Severity: normal
Dear DDs,
On a certain pair of files, "par2 create -q" and "par2create -qq" dump core.
However, "par2 create" in non-quiet mode, i.e. without -q or -qq, works fine
on the same input with otherwise identical options.
To reproduce:
1. Create an empty directory and change to it.
2. Create two files containing random data:
mirror-root_20050315-0507.super.tar.gz, size 12486682 bytes
mirror-usr_20050315-0442.super.tar.gz, size 899718239 bytes
(Below is a script which builds these files.)
3. Execute one of the following commands:
$ par2 create -qq -s2097152 -r25 redundancy.par2 *
$ par2 create -q -s2097152 -r25 redundancy.par2 *
Either will cause a core dump with the following message:
par2: verificationpacket.cpp:63: void
VerificationPacket::SetBlockHashAndCRC(unsigned int, const MD5Hash&, unsigned
int): Assertion `blocknumber < blockcount' failed.
Aborted (core dumped)
On the other hand,
$ par2 create -s2097152 -r25 redundancy.par2 *
works fine.
Thanks for all your hard work, and please feel free to contact me for more
information.
Reid
---- par2-bug-createfiles.bash ----
#!/bin/bash
MEG=$((128 * 1024))
function create_random_file () {
SIZE=$1
FILE=$2
echo "size = $SIZE, file = $FILE"
dd bs=128k count=$(($SIZE/$MEG)) if=/dev/urandom of=$FILE
dd bs=1 count=$(($SIZE-$MEG*($SIZE/$MEG))) seek=$(($MEG*($SIZE/$MEG)))
if=/dev/urandom of=$FILE
}
create_random_file 12486682 mirror-root_20050315-0507.super.tar.gz
create_random_file 899718239 mirror-usr_20050315-0442.super.tar.gz
---- end par2-bug-createfiles.bash ----
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.29
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages par2 depends on:
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libgcc1 1:3.4.3-6 GCC support library
ii libstdc++5 1:3.3.5-8 The GNU Standard C++ Library v3
-- no debconf information
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