mirror of
https://github.com/sheumann/hush.git
synced 2024-06-09 22:29:29 +00:00
30 lines
711 B
Plaintext
Executable File
30 lines
711 B
Plaintext
Executable File
# Builds a " 3>&- 4>&-" string.
|
|
# Note: one of these fds is a directory opened to /proc/self/fd
|
|
# for globbing. It is unwanted, but I don't know how to filter it out.
|
|
find_fds() {
|
|
fds=""
|
|
for f in /proc/self/fd/*; do
|
|
test "$f" = "/proc/self/fd/0" && continue
|
|
test "$f" = "/proc/self/fd/1" && continue
|
|
test "$f" = "/proc/self/fd/2" && continue
|
|
fds="$fds ${f##*/}>&-"
|
|
done
|
|
}
|
|
|
|
find_fds
|
|
fds1="$fds"
|
|
|
|
# One of the fds is open to the script body
|
|
# Close it while executing something.
|
|
eval "find_fds $fds"
|
|
|
|
# Shell should not lose that fd. Did it?
|
|
find_fds
|
|
test x"$fds1" = x"$fds" && { echo "Ok: script fd is not closed"; exit 0; }
|
|
|
|
echo "Bug: script fd is closed"
|
|
echo "fds1:$fds1"
|
|
echo "fds2:$fds"
|
|
exit 1
|
|
|