mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 08:29:45 +00:00
24 lines
769 B
Bash
24 lines
769 B
Bash
#!/bin/sh
|
|
# Leak test for gunzip. Watch top for growing process size.
|
|
# In this case we look for leaks in "concatenated .gz" code -
|
|
# we feed gunzip with a stream of .gz files.
|
|
|
|
i=$PID
|
|
c=0
|
|
while true; do
|
|
c=$((c + 1))
|
|
echo "Block# $c" >&2
|
|
# RANDOM is not very random on some shells. Spice it up.
|
|
i=$((i * 1664525 + 1013904223))
|
|
# 100003 is prime
|
|
len=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
|
|
|
|
# Just using urandom will make gzip use method 0 (store) -
|
|
# not good for test coverage!
|
|
cat /dev/urandom \
|
|
| while true; do read junk; echo "junk $c $i $junk"; done \
|
|
| dd bs=$len count=1 2>/dev/null \
|
|
| gzip >xxx.gz
|
|
cat xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz
|
|
done | ../busybox gunzip -c >/dev/null
|