FT_SCRIPT
ft_script is a simple recreation of the script command, designed to expolore the usage of pseudo-terminals in posix environments. ft_script sets up a pseudoterminal pair, where the slave is executed with the command specified by the invocation, or the value of $SHELL, or /bin/sh failing that. Input written to the shell is then forwarded to the pty slave, and the output of the slave is forwarded to the pty master, where it is written to the shell. All output written to the shell is duplicated to the specified file (or typescript if none provided), so that said file contains a record of the session started by ./ft_script.
Installation
git clone https://github.com/travmatth/ft_script
make
Usage
./ft_script [-aq] [file [command ...]]
-q: omit prologue/epilogue on terminal and typescript
-a: open typescript with append rather than truncate
Test
build tests: make Test=1 test_utils
execute tests: ./test/test_utils
Resources
- Advanced Programming in the Unix Environment: Chapter 19: Pseudo Terminals
- The Linux Programming Interface: Chapter 64: Pseudoterminals
- Pty implementation: grantpt.c
- Time implementation: time.c
- IOCTL syscalls: IOCTL List