diff options
Diffstat (limited to 'tests/misc/head-c.sh')
| -rwxr-xr-x | tests/misc/head-c.sh | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/tests/misc/head-c.sh b/tests/misc/head-c.sh index 6807c4d5..d6433d0d 100755 --- a/tests/misc/head-c.sh +++ b/tests/misc/head-c.sh @@ -1,7 +1,7 @@ #!/bin/sh -# exercise the fix of 2001-08-18, based on test case from Ian Bruce +# exercise head -c -# Copyright (C) 2001-2013 Free Software Foundation, Inc. +# Copyright (C) 2001-2014 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -18,13 +18,28 @@ . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src print_ver_ head +require_ulimit_v_ +getlimits_ +# exercise the fix of 2001-08-18, based on test case from Ian Bruce echo abc > in || framework_failure_ - (head -c1; head -c1) < in > out || fail=1 case "$(cat out)" in ab) ;; *) fail=1 ;; esac +# Test for a bug in coreutils 5.0.1 through 8.22. +printf 'abc\ndef\n' > in1 || framework_failure_ +(dd bs=1 skip=1 count=0 status=none && head -c-4) < in1 > out1 || fail=1 +case "$(cat out1)" in + bc) ;; + *) fail=1 ;; +esac + +# Only allocate memory as needed. +# Coreutils <= 8.21 would allocate memory up front +# based on the value passed to -c +(ulimit -v 20000; head --bytes=-$SSIZE_MAX < /dev/null) || fail=1 + Exit $fail |