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#!/usr/bin/expect -f
# This file is part of Firejail project
# Copyright (C) 2014-2026 Firejail Authors
# License GPL v2
set timeout 10
spawn $env(SHELL)
match_max 100000
#
# obtain some open file descriptors
#
send -- "exec {WRITE_FD}> blabla\r"
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 0\n";exit}
"/blabla"
}
after 100
send -- "exec {READ_FD}< blabla\r"
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 1\n";exit}
"/blabla"
}
after 100
#
# inherit environment variables
#
send -- "export READ_FD\r"
send -- "export WRITE_FD\r"
after 100
#
# close all file descriptors
# 0, 1, 2 stay open
#
send -- "firejail --noprofile\r"
expect {
timeout {puts "TESTING ERROR 2\n";exit}
-re {Child process initialized in [0-9]+.[0-9]+ ms}
}
after 100
# off by one because of ls
send -- "ls /proc/self/fd | wc -w\r"
expect {
timeout {puts "TESTING ERROR 3\n";exit}
"4"
}
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 4\n";exit}
"No such file or directory"
}
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 5\n";exit}
"No such file or directory"
}
after 100
send -- "exit\r"
after 500
#
# keep one file descriptor
#
send -- "firejail --noprofile --keep-fd=\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 6\n";exit}
-re {Child process initialized in [0-9]+.[0-9]+ ms}
}
after 100
# off by one because of ls
send -- "ls /proc/self/fd | wc -w\r"
expect {
timeout {puts "TESTING ERROR 7\n";exit}
"5"
}
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 8\n";exit}
"/blabla"
}
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 9\n";exit}
"No such file or directory"
}
after 100
send -- "exit\r"
after 500
#
# keep other file descriptor
#
send -- "firejail --noprofile --keep-fd=\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 10\n";exit}
-re {Child process initialized in [0-9]+.[0-9]+ ms}
}
after 100
# off by one because of ls
send -- "ls /proc/self/fd | wc -w\r"
expect {
timeout {puts "TESTING ERROR 11\n";exit}
"5"
}
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 12\n";exit}
"No such file or directory"
}
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 13\n";exit}
"/blabla"
}
after 100
send -- "exit\r"
after 500
#
# keep both file descriptors
#
send -- "firejail --noprofile --keep-fd=\$READ_FD,\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 14\n";exit}
-re {Child process initialized in [0-9]+.[0-9]+ ms}
}
after 100
# off by one because of ls
send -- "ls /proc/self/fd | wc -w\r"
expect {
timeout {puts "TESTING ERROR 15\n";exit}
"6"
}
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 16\n";exit}
"/blabla"
}
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 17\n";exit}
"/blabla"
}
after 100
send -- "exit\r"
after 500
#
# keep all file descriptors
#
send -- "firejail --noprofile --keep-fd=all\r"
expect {
timeout {puts "TESTING ERROR 18\n";exit}
-re {Child process initialized in [0-9]+.[0-9]+ ms}
}
after 100
send -- "readlink -v /proc/self/fd/\$READ_FD\r"
expect {
timeout {puts "TESTING ERROR 19\n";exit}
"/blabla"
}
after 100
send -- "readlink -v /proc/self/fd/\$WRITE_FD\r"
expect {
timeout {puts "TESTING ERROR 20\n";exit}
"/blabla"
}
after 100
send -- "exit\r"
after 500
#
# cleanup
#
send -- "rm -f blabla\r"
after 100
puts "\nall done\n"
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