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#!/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
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