Fix for remainder overflow, when in rare cases adding remainder to divider
exceeded 1 and turned the total to 1000 in final formatting, taking up
the space for the unit character.
The fix continues the division of the original number if the above case
happens -- added the appropriate check to the for loop performing
the division. This lowers the value shown, to make it fit into the buffer
space provided (1.0M for 4+1 character buffer, as used by ls).
Add test case for the reported bug and extend test program to support
providing buffer length (ls -lh uses 5, tests hard-coded 4).
PR: 224498
Submitted by: Pawel Biernacki <pawel.biernacki@gmail.com>
Reported by: Masachika Ishizuka <ish@amail.plala.or.jp>
Reviewed by: cem, kib
Approved by: cem, kib
MFC after: 1 week
Sponsored by: Mysterious Code Ltd.
Differential Revision: D13578
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
The maximum scale is 6 (K, M, G, T, P, E) (B is 0).
Overly large explict scales were checked correctly, but for sufficently
large numbers HN_AUTOSCALE would get to 7 resulting in an out of bounds
read.
Found with humanize_number_test and CHERI bounds checking.
Reviewed by: emaste
Obtained from: CheriBSD
MFC after: 1 week
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D10376
Since so many programs don't check return value, always NUL terminate
the buf...
fix rounding when using base 1024 (the bug that started it all)...
add a set of test cases so we can make sure that things don't break
in the future...
Thanks to Clifton Royston for testing and the test program...
Approved by: re (hrs, glebius)
MFC after: 1 week
prefixes (Ki, Mi, Gi...) for humanize_number(3).
Note that applications has to pass HN_IEC_PREFIXES to use this
feature for backward compatibility reasons.
Reviewed by: arundel
MFC after: 2 weeks
integer overflow when the input is very large (for example, 100 Pi would
become about 10 Ei which exceeded signed int64_t).
Solve this issue by splitting the division into two parts and avoid the
multiplication.
PR: bin/146205
Reviewed by: arundel
MFC after: 1 month
Significant changes:
- rev. 1.11: Use PRId64 instead of a cast to long long and %lld to print
an int64_t.
- rev. 1.12: Fix a bug that humanize_number() produces "1000" where it
should be "1.0G" or "1.0M". The bug reported by Greg Troxel.
PR: 118461
PR: 102694
Approved by: rwatson (mentor)
Obtained from: NetBSD
MFC after: 1 month
