Beyond Linux® From Scratch (System V Edition) - Version 2021-04-13

Chapter 11. General Utilities

Sharutils-4.15.2

Introduction to Sharutils

The Sharutils package contains utilities that can create 'shell' archives.

This package is known to build and work properly using an LFS-10.1 platform.

Package Information

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/sharutils

Installation of Sharutils

Fix a heap buffer overflow, and an issue exposed by GCC-10: 

sed -i 's/BUFSIZ/rw_base_size/' src/unshar.c &&
sed -i '/program_name/s/^/extern /' src/*opts.h

Install Sharutils by running the following commands: 

sed -i 's/IO_ftrylockfile/IO_EOF_SEEN/' lib/*.c        &&
echo "#define _IO_IN_BACKUP 0x100" >> lib/stdio-impl.h &&

./configure --prefix=/usr &&
make

To test the results, issue make check.

Now, as the root user: 

make install

Contents

Installed Programs: shar, unshar, uudecode and uuencode
Installed Libraries: None
Installed Directories: None

Short Descriptions

shar

creates "shell archives" (or shar files) which are in text format and can be mailed

unshar

unpacks a shar file

uudecode

reads a file (or by default the standard input) and writes an encoded version to the standard output. The encoding uses only printing ASCII characters

uuencode

reads a file (or by default the standard input) and decodes the uuencoded version to the standard output

Last updated on 2021-02-20 13:35:58 -0600