Long Range ZIP

This release corrects the fact that the lrzuntar, lrunzip symlinks, and pod-based man pages had been forgotten from the install. Configuration clearly shows on 64-bit that ASM is not supported now.

This is a massive rewrite. The program now supports full use of stdin and stdout without using temporary files. Very high grade password protection with SHA512/AES128 has been added. Decompression and testing rzip reconstruction is done within RAM now, providing faster decompression. Big endian machine support has been added. A new file format is used to support the new features. The lrztar wrapper was modified to use the new stdin/stdout capabilities. A new, more robust, flexible build configuration system was adopted using autotools. Functions were abstracted out to begin work on creating an lrzip library. Numerous small bugs were addressed.

Negative value allocs are now prevented with high thread/low RAM combinations. Free space is now checked before attempting to compress or decompress, and the program aborts if there is inadequate space and -f is not enabled. The check for where data is going when refusing to write stdout to a terminal was corrected. Temporary files are unlinked as soon as possible to minimize the chance of stale temporary files being left. File check can no longer be enabled when meaningless. The time displayed and progress when known from STDIN were fixed. Spurious errors when trying to mmap files are avoided. Temporary file sizes used when decompressing to STDOUT were minimized.

Improvements were made for more CPU usage and faster compression and decompression. Memory is now precisely controlled to avoid running out of memory while using the largest possible compression windows. A single thread is used when advantageous. Verbose output options were added for -i information. The lrzip.conf features were updated. The -M option was dropped. The -T lzo testing option was changed to not take a parameter. Deletion of files that the program has refused to overwrite is prevented. Output in failure modes was made cleaner. Default compiler flags were added. The program now refuses to read from or write to a terminal with stdin/stdout. Missed temporary files are deleted. A large clean up of the documentation was done.

Mac OS X multi-threading now works due to rewriting the locking implementation to use mutexes instead of unnamed semaphores. MD5 hash checking has been added and is used by default, while maintaining backward compatibility and speeding up the checking. The best mode for hash checking is determined on decompression. Verbose and information modes display what hash checking will be used for integrity testing. Options were added to display hash check values and perform integrity testing on decompressed files. Broken or damaged files are now deleted on interruption/failure or kept with a new option.