diff options
Diffstat (limited to 'tests')
| -rwxr-xr-x | tests/misc/cut-huge-range.sh | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/tests/misc/cut-huge-range.sh b/tests/misc/cut-huge-range.sh index 9905cd758..e9190a2c2 100755 --- a/tests/misc/cut-huge-range.sh +++ b/tests/misc/cut-huge-range.sh @@ -21,19 +21,22 @@ print_ver_ cut require_ulimit_v_ getlimits_ +# Ensure we can cut up to our sentinel value. +# This is currently SIZE_MAX, but could be raised to UINTMAX_MAX +# if we didn't allocate memory for each line as a unit. +CUT_MAX=$(expr $SIZE_MAX - 1) + # From coreutils-8.10 through 8.20, this would make cut try to allocate # a 256MiB bit vector. With a 20MB limit on VM, the following would fail. -(ulimit -v 20000; : | cut -b$INT_MAX- > err 2>&1) || fail=1 +(ulimit -v 20000; : | cut -b$CUT_MAX- > err 2>&1) || fail=1 # Up to and including coreutils-8.21, cut would allocate possibly needed -# memory upfront. Subsequently memory is allocated as required. -(ulimit -v 20000; : | cut -b1-$INT_MAX >> err 2>&1) || fail=1 - -# Ensure ranges are merged correctly when large range logic is in effect -echo 1 > exp -(dd bs=1MB if=/dev/zero count=1; echo '1') | -cut -b1-1000000,2-3,4-5,1000001 2>>err | tail -c2 > out || fail=1 -compare exp out || fail=1 +# memory upfront. Subsequently extra memory is no longer needed. +(ulimit -v 20000; : | cut -b1-$CUT_MAX >> err 2>&1) || fail=1 + +# Explicitly disallow values above CUT_MAX +(ulimit -v 20000; : | cut -b$SIZE_MAX 2>/dev/null) && fail=1 +(ulimit -v 20000; : | cut -b$SIZE_OFLOW 2>/dev/null) && fail=1 compare /dev/null err || fail=1 |