blob: 2dc4afda184417962ad497fa3adcad6364d722fb [file] [log] [blame]
Denis Vlasenkod21f5962007-10-05 15:27:03 +00001#!/bin/sh
2# Leak test for gunzip. Watch top for growing process size.
3# In this case we look for leaks in "concatenated .gz" code -
4# we feed gunzip with a stream of .gz files.
5
6i=$PID
7c=0
8while true; do
9 c=$((c + 1))
10 echo "Block# $c" >&2
11 # RANDOM is not very random on some shells. Spice it up.
12 i=$((i * 1664525 + 1013904223))
13 # 100003 is prime
14 len=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
15
16 # Just using urandom will make gzip use method 0 (store) -
17 # not good for test coverage!
18 cat /dev/urandom \
19 | while true; do read junk; echo "junk $c $i $junk"; done \
20 | dd bs=$len count=1 2>/dev/null \
21 | gzip >xxx.gz
22 cat xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz
23done | ../busybox gunzip -c >/dev/null