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8 years agodoc: only distribute 5 years of ChangeLogs
Pádraig Brady [Wed, 1 Feb 2017 05:55:22 +0000 (21:55 -0800)] 
doc: only distribute 5 years of ChangeLogs

Remove old log files that have corresponding entries
in the source code repository.
This saves about 2.5MB uncompressed, 0.5M compressed.

* Makefile.am (gen-ChangeLog): Adjust to taking all
logs since a particular version (8.15 in this case).
Also mention in the truncated log where to get older entries.
(changelog_etc): Remove the no longer distributed files.
* build-aux/git-log-fix: Remove now unused entries.
* ChangeLog-200[5-8]: Delete.
* doc/ChangeLog-2007: Likewise.
* po/ChangeLog-2007: Likewise.
* old/*: Likewise.

8 years agomaint: fix HACKING instructions to run a single test
Maxime de Roucy [Tue, 7 Feb 2017 01:10:55 +0000 (02:10 +0100)] 
maint: fix HACKING instructions to run a single test

* HACKING: s/make TEST=/make check TEST=/
The 'check' target was missing there since v8.20-57-geac397e.

8 years agobuild: fix issue with HAVE_FALLOCATE on centos5
Pádraig Brady [Wed, 25 Jan 2017 11:09:03 +0000 (11:09 +0000)] 
build: fix issue with HAVE_FALLOCATE on centos5

* src/copy.c (punch_hole): Work around an empty definition
of HAVE_FALLOCATE which leads to a build error of:
"error: #if with no expression"
That was triggered by the inclusion of <linux/fs.h> in
commit v8.25-68-g89e1fef with kernel-headers-2.6.18.
Reported by Nelson H. F. Beebe

8 years agobuild: Properly expand cu_install_program when cross-compiling
Manolis Ragkousis [Wed, 25 Jan 2017 16:33:29 +0000 (18:33 +0200)] 
build: Properly expand cu_install_program when cross-compiling

* src/local.mk (cu_install_program): Replace @INSTALL_PROGRAM@
with @INSTALL@ when cross-compiling; missed in commit 477a1e8e.
Message-Id: <20170125163329.5690-1-manolis837@gmail.com>
Copyright-paperwork-exempt: Yes

8 years agodircolors: highlight windows archive format
Mike Swanson [Sun, 15 Jan 2017 18:48:12 +0000 (10:48 -0800)] 
dircolors: highlight windows archive format

* src/dircolors.hin: Match *.{wim,swm,dwn,esd}

8 years agomaint: mention the recent date time zone bug fix
Pádraig Brady [Sat, 21 Jan 2017 15:15:26 +0000 (15:15 +0000)] 
maint: mention the recent date time zone bug fix

* NEWS: Add the bug fix from commit v8.26-27-gb14be50

8 years agomaint: appease syntax-check failures due to recent updates
Assaf Gordon [Sat, 21 Jan 2017 15:04:43 +0000 (15:04 +0000)] 
maint: appease syntax-check failures due to recent updates

* bootstrap: s/time stamp/timestamp/.
* old/fileutils/NEWS: Likewise.
* src/tail.c: Avoided a long line.

8 years agodate: fix TZ= regression
Paul Eggert [Sat, 21 Jan 2017 02:24:02 +0000 (18:24 -0800)] 
date: fix TZ= regression

Problem reported by Paul Wise for Debian, in:
https://bugs.debian.org/851934
This is fallout from the fix for GNU Bug#23035.
* src/date.c (batch_convert): New args TZ and TZSTRING.
All uses changed.
(batch_convert, main): Adjust to parse_datetime2 API change.
(main): Allocate time zone object.
* tests/misc/date-debug.sh: Fix incorrect test case,
caught by the fix.
* tests/misc/date.pl: Test the fix.

8 years agobuild: update gnulib submodule to latest
Paul Eggert [Sat, 21 Jan 2017 02:08:03 +0000 (18:08 -0800)] 
build: update gnulib submodule to latest

8 years agomaint: update README-hacking, now that vc-dwim accepts --init
Jim Meyering [Sat, 14 Jan 2017 17:30:31 +0000 (09:30 -0800)] 
maint: update README-hacking, now that vc-dwim accepts --init

* README-hacking: I've just released vc-dwim-1.8, so we can improve
the documentation to reference its --initialize option here.

8 years agodate: output "-00" for indeterminate time zone
Paul Eggert [Sun, 15 Jan 2017 07:57:54 +0000 (23:57 -0800)] 
date: output "-00" for indeterminate time zone

* NEWS: Document this behavior, which comes with recent Gnulib.
* doc/coreutils.texi (Formatting file timestamps, du invocation)
(Time conversion specifiers, Setting the time, Options for date):
Mention when -00 is output for numeric time zones.
Be more careful about Internet RFC numbers, ISO 8601, etc.

8 years agodate: new option spelling --rfc-email
Paul Eggert [Sun, 15 Jan 2017 07:15:43 +0000 (23:15 -0800)] 
date: new option spelling --rfc-email

* NEWS:
* doc/coreutils.texi (Time conversion specifiers)
(Options for date, Examples of date): Document this.
* src/date.c (rfc_email_format): Rename from rfc_2822_format.
All uses changed.
(usage, long_options): Support --rfc-email.

8 years agomaint: modernize URLs
Paul Eggert [Sun, 15 Jan 2017 06:57:51 +0000 (22:57 -0800)] 
maint: modernize URLs

A lot of this is converting http: to https:.
Also, gmane went away, so remove URLs that no longer work and
are not easy to figure out what they were.
Some of this stuff is so old that it no longer matters anyway.

8 years agobuild: update gnulib submodule to latest
Paul Eggert [Sat, 14 Jan 2017 19:44:05 +0000 (11:44 -0800)] 
build: update gnulib submodule to latest

8 years agodoc: move "File timestamps" to a separate chapter
Bernhard Voelker [Tue, 10 Jan 2017 21:08:03 +0000 (22:08 +0100)] 
doc: move "File timestamps" to a separate chapter

The above new section looked a bit odd as the only general documentation
in between the utility chapters.

* doc/coreutils.texi (File timestamps): Move to a separate chapter.

8 years agomaint: fix recent syntax check failures
Eric Blake [Tue, 10 Jan 2017 19:48:45 +0000 (13:48 -0600)] 
maint: fix recent syntax check failures

Commit 4f650aad was incomplete; it changed NEWS but not the hash,
and introduced a grammar error.

* cfg.mk (old_NEWS_hash): Update via 'make update-NEWS-hash'.
* doc/coreutils.texi (File timestamps): Fix doubled word.

8 years agodoc: cover file timestamps better
Paul Eggert [Mon, 9 Jan 2017 23:14:09 +0000 (15:14 -0800)] 
doc: cover file timestamps better

Prompted by a bug report from Scott Deerwester (Bug#25407).
* doc/coreutils.texi (File timestamps): New section.
Revamp other sections to use this new section, and
use more-consistent terminology.

8 years agomaint: standardize on "timestamp" as per POSIX
Paul Eggert [Mon, 9 Jan 2017 20:12:02 +0000 (12:12 -0800)] 
maint: standardize on "timestamp" as per POSIX

8 years agostty: ensure no side effects from invalid options
Pádraig Brady [Mon, 9 Jan 2017 00:07:42 +0000 (00:07 +0000)] 
stty: ensure no side effects from invalid options

* src/stty.c (apply_settings): A new function refactored
from main() that is used to both check and apply options.
(main): Call apply_settings before we open the device,
so all validation is done before interacting with a device.
* NEWS: Mention the improvement.
* tests/misc/stty.sh: Add a test case.

8 years agotests: improve 'date --debug' tests
Assaf Gordon [Fri, 6 Jan 2017 02:29:17 +0000 (21:29 -0500)] 
tests: improve 'date --debug' tests

Update tests following improvements to gnulib's parse-datetime.y module.
See https://lists.gnu.org/archive/html/bug-gnulib/2017-01/msg00002.html

* tests/misc/date-debug.sh: Add tests for each of the gnulib changes.

8 years agobuild: update gnulib submodule to latest
Assaf Gordon [Fri, 6 Jan 2017 01:49:13 +0000 (20:49 -0500)] 
build: update gnulib submodule to latest

8 years agomaint: update all copyright year number ranges
Pádraig Brady [Sun, 1 Jan 2017 22:38:02 +0000 (22:38 +0000)] 
maint: update all copyright year number ranges

Run "make update-copyright" and then...

* gnulib: Update to latest with copyright year adjusted.
* tests/init.sh: Sync with gnulib to pick up copyright year.
* bootstrap: Likewise.
* tests/sample-test: Adjust to use the single most recent year.

8 years agodoc: recommend b2sum as well as SHA2
Zooko [Mon, 26 Dec 2016 20:06:36 +0000 (20:06 +0000)] 
doc: recommend b2sum as well as SHA2

b2sum is faster, easier to use safely, and more future-proof

8 years agotests: avoid false fails on NFS due to EPERM
Pádraig Brady [Mon, 26 Dec 2016 13:06:57 +0000 (13:06 +0000)] 
tests: avoid false fails on NFS due to EPERM

* tests/chgrp/basic.sh: On some NFS setups a user is
not allowed to set a group on a file even if a member
of that group.  Therefore skip this test on remote file systems.
* tests/chgrp/default-no-deref.sh: Likewise.
* tests/chgrp/no-x.sh: Likewise.
* tests/chgrp/posix-H.sh: Likewise.
* tests/chgrp/recurse.sh: Likewise.
* tests/tail-2/inotify-rotate-resources.sh: Change to skipping
on remote file systems in the standard way.

8 years agodoc: Update POSIX part of README (Bug#25259)
Paul Eggert [Tue, 27 Dec 2016 23:02:34 +0000 (15:02 -0800)] 
doc: Update POSIX part of README (Bug#25259)

8 years agowc: with only --bytes, determine size more efficiently
Pádraig Brady [Thu, 22 Dec 2016 14:31:44 +0000 (14:31 +0000)] 
wc: with only --bytes, determine size more efficiently

* src/wc.c (wc): Avoid reading the end of the file
when the size is not a multiple of PAGE_SIZE,
as the special case handling for files in /proc and /sys
is only required when st_size is 0 or a multiple of PAGE_SIZE.
* tests/misc/wc-proc.sh: Add a test case.

8 years agomaint: correct the version for the previous bug fix
Pádraig Brady [Tue, 20 Dec 2016 13:07:07 +0000 (13:07 +0000)] 
maint: correct the version for the previous bug fix

While st_size would have been incorrect for subsequent
files since v7.1, it was only used since v8.24.

* tests/misc/wc-files0.sh: s/7.1/8.24/
* NEWS: Likewise.

Reported by Bernhard Voelker

8 years agowc: fix wrong byte counts when using --files-from0
William R. Fraser [Mon, 21 Mar 2016 00:44:09 +0000 (17:44 -0700)] 
wc: fix wrong byte counts when using --files-from0

* src/wc.c (main): Reset fstatus[0].failed between files when reusing
the fstatus[0] entry in --files-from0 mode.  This ensures a stat() is
done for each file, avoiding incorrect counts and redundant reading.
* NEWS: Mention the bug fix.
* tests/misc/wc-files0.sh: Add a test case.
Fixes http://bugs.gnu.org/23073

8 years agotests: fix typos in previous commit
Pádraig Brady [Sun, 18 Dec 2016 20:37:21 +0000 (20:37 +0000)] 
tests: fix typos in previous commit

* init.cfg (skip_if_mcstransd_is_running_): Fix typos
_introduced my me_ in the previous commit.

8 years agotests: support non-MLS enabled SELinux systems
Nicolas Iooss [Thu, 11 Feb 2016 14:07:52 +0000 (15:07 +0100)] 
tests: support non-MLS enabled SELinux systems

When running "make check" on a Linux system running SELinux with a
non-MLS policy, tests/mkdir/restorecon.sh test fails with:

  chcon: invalid context: root:object_r:tmp_t:s0: Invalid argument

Indeed in such a configuration, contexts cannot have ":s0" suffix.

* init.cfg (get_selinux_type): Refactor this function to here
from various tests.  Update to work with a non-MLS policy.
(mls_enabled_): A new function to detect if MLS is enabled.
(skip_if_mcstransd_is_running_): Update to not skip when
MLS is not enabled.
* tests/mkdir/restorecon.sh: Use a valid non-MLS context when needed.
* tests/install/install-Z-selinux.sh: Likewise.
* tests/cp/cp-a-selinux.sh: Likewise.
* tests/misc/selinux.sh: Likewise.
* tests/misc/chcon.sh: Skip if non-MLS as --range used throughout.
Fixes http://bugs.gnu.org/22631

8 years agofactor: retry properly if Pollard rho gives a trivial factorization
Torbjörn Granlund [Thu, 8 Dec 2016 10:07:29 +0000 (10:07 +0000)] 
factor: retry properly if Pollard rho gives a trivial factorization

* src/factor.c (factor_using_pollard_rho): Handle trivial factor g = n.
(factor_using_pollard_rho2): Handle trivial factor g1 = n1, g0 = n0.
* tests/misc/factor.pl: Add a test case.
Fixes http://bugs.gnu.org/25135

8 years agofactor: fix infinite loop in gcd2_odd
Niels Möller [Thu, 8 Dec 2016 09:48:50 +0000 (09:48 +0000)] 
factor: fix infinite loop in gcd2_odd

* src/factor.c (gcd2_odd): Fix the case a1 == 0, a0 == 0.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/25135

8 years agodoc: fix --help for: od -t f[SIZE]
Pádraig Brady [Fri, 2 Dec 2016 13:10:18 +0000 (13:10 +0000)] 
doc: fix --help for: od -t f[SIZE]

* src/od.c (usage): SIZE is that of float, not integer.

8 years agomaint: post-release administrivia
Pádraig Brady [Wed, 30 Nov 2016 18:35:39 +0000 (18:35 +0000)] 
maint: post-release administrivia

* NEWS: Add header line for next release.
* .prev-version: Record previous version.
* cfg.mk (old_NEWS_hash): Auto-update.

8 years agoversion 8.26 v8.26
Pádraig Brady [Wed, 30 Nov 2016 18:11:57 +0000 (18:11 +0000)] 
version 8.26

* NEWS: Record release date.

8 years agotests: fix false failure with spaces in $PWD
Pádraig Brady [Wed, 30 Nov 2016 15:50:59 +0000 (15:50 +0000)] 
tests: fix false failure with spaces in $PWD

* tests/misc/ptx-overrun.sh: Quote appropriately to avoid this
recently added issue, noticed by `make taint-distcheck`.

8 years agomaint: avoid "make distcheck" failure without excess .deps directories
Pádraig Brady [Wed, 30 Nov 2016 14:47:08 +0000 (14:47 +0000)] 
maint: avoid "make distcheck" failure without excess .deps directories

* Makefile.am (my-distcheck): Add the -r option to xargs so that
rmdir doesn't return an error when there are no extraneous .deps dirs.

8 years agotests: fix ERRORs and false FAILs on some platforms
Pádraig Brady [Tue, 29 Nov 2016 21:15:59 +0000 (21:15 +0000)] 
tests: fix ERRORs and false FAILs on some platforms

* tests/misc/ls-time.sh: Skip the test rather than ERROR
when `touch -m -d ...` fails (Hurd).
* tests/tail-2/follow-stdin.sh: Avoid false FAILs by ignoring
the variances in sterror output.
* tests/rm/rm-readdir-fail.sh: Likewise.  Also avoid ERRORs
on systems that don't define _D_EXACT_NAMELEN.

8 years agohead: fix processing of non-seekable input as seekable
Pádraig Brady [Mon, 28 Nov 2016 17:11:18 +0000 (17:11 +0000)] 
head: fix processing of non-seekable input as seekable

* src/head.c (elide_tail_bytes_file): Ensure we don't use
st_size unless we've previously used seek() to determine
the CURRENT_POS in the seekable file.
This was seen to cause issue on FreeBSD 11 when the pipe
buffer was filled with `yes | head --lines=-0`, in which
case st_size was 64KiB while ST_BLKSIZE() was 4KiB.
Reported by Assaf Gordon.

8 years agoinstall,mkdir: fix handling of -DZ and -pZ, respectively
Kamil Dudka [Mon, 28 Nov 2016 15:21:42 +0000 (16:21 +0100)] 
install,mkdir: fix handling of -DZ and -pZ, respectively

... in the case where two or more directories nested in each other are
created and each of them defaults to a different SELinux context.

* src/install.c (make_ancestor): When calling defaultcon(), give it the
same path that is given to mkdir().  The other path is not always valid
wrt. current working directory.
* src/mkdir.c (make_ancestor): Likewise.
* NEWS: Mention the bug fix.

Reported at https://bugzilla.redhat.com/1398913

8 years agotac: fix mem corruption when failing to read non seekable inputs
Pádraig Brady [Sun, 27 Nov 2016 15:09:53 +0000 (15:09 +0000)] 
tac: fix mem corruption when failing to read non seekable inputs

This was detected with ASAN, but can also be seen without ASAN with:
  $ tac - - <&-
  tac: standard input: read error: Bad file descriptor
  *** Error in `tac': malloc(): memory corruption: 0x...

* src/tac.c (copy_to_temp): Don't close our output stream on
(possibly transient) output error, or on input error.
(temp_stream): clearerr() on the stream about to be reused,
to ensure future stream use is not impacted by transient errors.
* tests/misc/tac-2-nonseekable.sh: Add a test case.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/25041

8 years agotail: fix uninitialized memory read when failing to read file
Pádraig Brady [Sun, 27 Nov 2016 13:00:35 +0000 (13:00 +0000)] 
tail: fix uninitialized memory read when failing to read file

Reproduced under UBSAN with `tail -f <&-` giving:
  tail.c:2220:18: runtime error: load of value 190,
  which is not a valid value for type ‘_Bool'

* src/tail.c (tail_file): Ensure f->ignore is initialized
in all cases where we can't tail the specified file.
* tests/tail-2/follow-stdin.sh: Add a test case which
checks stderr has no UBSAN warnings.
Fixes http://bugs.gnu.org/25041

8 years agodoc: add NEWS entries for recent changes
Pádraig Brady [Sun, 27 Nov 2016 01:20:09 +0000 (01:20 +0000)] 
doc: add NEWS entries for recent changes

* NEWS: Mention in improvements about the workaround for
the glibc issue with closed stdin, and the new supported file systems.
* tests/misc/b2sum.sh: Spelling fix.

8 years agostat,tail: sync with latest Linux file systems
Pádraig Brady [Sat, 26 Nov 2016 16:10:53 +0000 (16:10 +0000)] 
stat,tail: sync with latest Linux file systems

Update with the results from:

  kgit='https://git.kernel.org/cgit/linux/kernel/git'
  wget -q $kgit/torvalds/linux.git/plain/include/uapi/linux/magic.h \
    -O src/fs-latest-magic.h
  make src/fs-magic-compare

* src/stat.c (human_fstype): Add entries for:
BALLOON_KVM, CGROUP2, DAXFS, ZSMALLOC.

8 years agobuild: fix potential factor build failure on arm and risc
Pádraig Brady [Sat, 26 Nov 2016 15:55:04 +0000 (15:55 +0000)] 
build: fix potential factor build failure on arm and risc

* src/longlong.h: Sync from gmp repo incorporating:
Protect umul_ppmm with do ... while (0)
Replace obsolete ARC asm 'J' constraints with 'Cal'
Provide umul_ppmm for riscv64

8 years agoshred,sort: ensure faster unaligned access to rand module
Pádraig Brady [Fri, 25 Nov 2016 22:10:20 +0000 (22:10 +0000)] 
shred,sort: ensure faster unaligned access to rand module

glibc has changed the public define
from _STRING_ARCH_unaligned to _STRING_INLINE_unaligned as per
https://sourceware.org/bugzilla/show_bug.cgi?id=19462

* gl/lib/rand-isaac.c: Cater for both defines.
* gl/lib/randread.c: Likewise.
* src/system.h: Update commented out code.

8 years agoshuf: test input-closed bug
Paul Eggert [Sat, 26 Nov 2016 23:37:43 +0000 (15:37 -0800)] 
shuf: test input-closed bug

Problem reported by Alex Ryan (Bug#25029).
* tests/misc/shuf.sh: Test for shuffling with stdin closed.

8 years agobuild: update gnulib submodule to latest
Paul Eggert [Sat, 26 Nov 2016 22:59:33 +0000 (14:59 -0800)] 
build: update gnulib submodule to latest

8 years agonumfmt: pacify Sun C 5.14
Paul Eggert [Sat, 26 Nov 2016 02:54:03 +0000 (18:54 -0800)] 
numfmt: pacify Sun C 5.14

* src/numfmt.c (main): Don't implicitly coerce pointer in bool
initializer.  Although it's portable C99 code, it's confusing.

8 years agotests: fix false failure on new ls test
Pádraig Brady [Fri, 25 Nov 2016 14:35:13 +0000 (14:35 +0000)] 
tests: fix false failure on new ls test

* tests/ls/quote-align.sh: Remove "total" line
which can vary per file system depending on allocation.
Reported by Assaf Gordon on OpenSolaris (5.11/5.10).

8 years agopr: fix read from invalid memory with tabs in separator
Pádraig Brady [Fri, 25 Nov 2016 13:46:23 +0000 (13:46 +0000)] 
pr: fix read from invalid memory with tabs in separator

This was detected with:
  echo a > a; pr "-S$(printf "\t\t\t")" a -m a > /dev/null
Resulting in ASAN triggering:
  ====================================================
  ERROR: AddressSanitizer: global-buffer-overflow
  READ of size 1 at 0x00000041b622 thread T0
    #0 0x40506a in print_sep_string ../src/pr.c:2241
    #1 0x407ec4 in read_line ../src/pr.c:2493
    #2 0x40985c in print_page ../src/pr.c:1802
    #3 0x40985c in print_files ../src/pr.c:1618
    #4 0x4036e0 in main ../src/pr.c:1136

* src/pr.c (init_parameters): Ensure we only override the
specified separator when it's a single tab, thus matching
the calculated separator length.
* tests/pr/pr-tests.pl: Add a test case.
* NEWS: Mention the fix.

8 years agoptx: fix an invalid heap reference with short --width
Pádraig Brady [Thu, 24 Nov 2016 15:56:01 +0000 (15:56 +0000)] 
ptx: fix an invalid heap reference with short --width

* src/ptx.c (fix_output_parameters): Ensure line_width doesn't
go negative, which can happen when the --width is less
than the --gap-size.
* tests/misc/ptx-overrun.sh: Add a test case that triggers
with ASAN.  (Note the longer filename is needed to trigger).
Fixes http://bugs.gnu.org/25011

8 years agodoc: clarify that readlink's --quiet option is on by default
Bernhard Voelker [Thu, 24 Nov 2016 09:51:27 +0000 (10:51 +0100)] 
doc: clarify that readlink's --quiet option is on by default

* src/readlink.c (usage): Mark the --quiet/--silent option as active
by default.
* doc/coreutils.texi (readlink invocation): Likewise.

8 years agotests: fix false failure with ASAN in rm-readdir-fail
Pádraig Brady [Thu, 24 Nov 2016 01:26:30 +0000 (01:26 +0000)] 
tests: fix false failure with ASAN in rm-readdir-fail

* tests/rm/rm-readdir-fail.sh: ASAN correctly indicated
that fts was writing to freed memory.  This was because
we reused a single dirent in our readdir() test wrapper.
Since fts was deallocating those dirents, we now get
a new dirent for each call to our readdir wrapper.

8 years agosplit: fix memory corruption during chunk extraction
Pádraig Brady [Thu, 24 Nov 2016 00:03:16 +0000 (00:03 +0000)] 
split: fix memory corruption during chunk extraction

ASAN reported this error for: split -n2/3 /dev/null
  ERROR: AddressSanitizer: negative-size-param: (size=-1)
  #0 0x7f0d4c36951d in __asan_memmove (/lib64/libasan.so.2+0x8d51d)
  #1 0x404e06 in memmove /usr/include/bits/string3.h:59
  #2 0x404e06 in bytes_chunk_extract src/split.c:988
  #3 0x404e06 in main src/split.c:1626

Specifically there would be invalid memory access
and subsequent processing if the chunk to be extracted
was beyond the initial amount read from file (which is
currently capped at 128KiB).  This issue is not in a
released version, only being introduced in commit v8.25-4-g62e7af0

* src/split.c (bytes_chunk_extract): The initial_read != SIZE_MAX
should have been combined with && rather than ||, but also this
condition is always true in this function so remove entirely.
* tests/split/b-chunk.sh: Add a test case.

Fixes http://bugs.gnu.org/25003

8 years agotail: fix checking of remoteness when not using inotify
Pádraig Brady [Wed, 23 Nov 2016 17:10:20 +0000 (17:10 +0000)] 
tail: fix checking of remoteness when not using inotify

In recent commit v8.25-93-g7fc7206 we used the f->remote flag
which wasn't set in all cases.  This was detected with
ASAN giving this error when reading f->remote;
  runtime error: load of value 190,
  which is not a valid value for type '_Bool'

* src/tail.c (fremote): Query the system even without inotify.
(recheck): Always set f->fremote for valid files.

8 years agobuild: avoid racy failure of "make -jN install"
Jim Meyering [Wed, 23 Nov 2016 05:33:58 +0000 (21:33 -0800)] 
build: avoid racy failure of "make -jN install"

Installing with -j2 or greater could result in a failure like
  /bin/sh: line 29: /P/bin/install: Permission denied
when /P/bin/install specifies your PATH-selected install program.
This would arise because we're using "install" to install all
man/*.1 files, and that command would run concurrently with the one
that installs "/P/bin/install" itself.  We would run this command:
"src/ginstall src/ginstall /P/bin/install", and it would result
in intervals during which the destination file does not exist,
is empty or incomplete and not executable.  We addressed this
problem long ago for installation of actual binaries by telling the
installation rules to use our just-built bin/ginstall (only when not
cross-compiling) rather than the PATH-resolved "install" program.
This change is to do the same for those .1 files.
* src/local.mk (INSTALL): Override automake's default of something
like "INSTALL = /P/bin/install -c".
(INSTALL_PROGRAM): Now that we set INSTALL, there is no longer any
need to set this derived variable.  Its default definition,
"INSTALL_PROGRAM = ${INSTALL}" does what we require.
Improved by Eric Blake.

8 years agomaint: fix 'syntax-check' targets for VPATH builds
Bernhard Voelker [Tue, 22 Nov 2016 21:27:51 +0000 (22:27 +0100)] 
maint: fix 'syntax-check' targets for VPATH builds

* cfg.mk (sc_gitignore_missing): Add $(srcdir) to .gitignore filename.
(sc_gitignore_redundant): Likewise.

8 years agomaint: add build-aux/ar-lib to .gitignore
Bernhard Voelker [Tue, 22 Nov 2016 22:40:30 +0000 (23:40 +0100)] 
maint: add build-aux/ar-lib to .gitignore

* .gitignore: Add entry for the above file which is created
by  './bootstrap'.

8 years agopr: fix integer overflow in buffer size calcs
Paul Eggert [Wed, 23 Nov 2016 08:05:51 +0000 (00:05 -0800)] 
pr: fix integer overflow in buffer size calcs

Problem reported by Marcel Böhme (Bug#24996).
* configure.ac (WERROR_CFLAGS): Avoid -Wtype-limits.
* src/pr.c (col_sep_string): Now a const pointer.  All uses changed.
(integer_overflow): New function.
(separator_string, main, init_parameters, init_store_cols):
Check for integer overflow.
(align_column, read_line, print_stored): Avoid integer overflow.

8 years agocomm: add --total option
Bernhard Voelker [Tue, 22 Nov 2016 21:03:47 +0000 (22:03 +0100)] 
comm: add --total option

* src/comm.c (total_option): Add bool variable for the new option.
(TOTAL_OPTION): Add enum value.
(long_options): Add array element for the new option.
(usage): Document the new option here.
(compare_files): Count the lines in total[3], and output the summary at
the end.
(main): Accept the new option.
* doc/coreutils.texi (comm invocation): Document it.
* tests/misc/comm.pl: Test it.  While at it, improve the test data
to have 1 unique line in the first file, 2 unique lines in the second
file, and 3 common lines.
* NEWS (New Features): Mention the new option.

Fixes http://bugs.gnu.org/24929

8 years agoall: update gnulib submodule to latest
Pádraig Brady [Tue, 22 Nov 2016 19:41:20 +0000 (19:41 +0000)] 
all: update gnulib submodule to latest

Also sync these copies with gnulib:
* bootstrap: Sync missed part of AIX support.
* tests/init.sh: Support compare_ on AIX.

8 years agotests: fix false failure with FreeBSD 11 multibyte quoting
Pádraig Brady [Tue, 22 Nov 2016 01:45:56 +0000 (01:45 +0000)] 
tests: fix false failure with FreeBSD 11 multibyte quoting

* tests/misc/printf-quote.sh: FreeBSD 11 was seen to treat
\u0378 as a printable character.  Therefore change to
using the \u0081 C1 control character.  We use the UTF-8
representation because our printf implementation explicitly
disallows \u0081 as input.
Reported by Assaf Gordon

8 years agotests: fix false fails due to passing env vars to returns_
Pádraig Brady [Tue, 22 Nov 2016 01:23:22 +0000 (01:23 +0000)] 
tests: fix false fails due to passing env vars to returns_

On BSD /bin/sh it was seen that unexported env vars passed to
returns_() would not be propagated to the wrapped command.

* cfg.mk (sc_prohibit_env_returns): Add a syntax check to disallow.
* tests/misc/csplit-io-err.sh: Rearrange to export vars in a subshell.
* tests/rm/rm-readdir-fail.sh: Likewise.
* tests/misc/nohup.sh: Export and unset vars around returns_.
* tests/misc/printenv.sh: Likewise.
Reported by Assaf Gordon

8 years agotests: fix recent tail-2 test regressions
Pádraig Brady [Sat, 19 Nov 2016 11:14:49 +0000 (11:14 +0000)] 
tests: fix recent tail-2 test regressions

* tests/tail-2/pipe-f.sh: Avoid issue with readable
directories on BSD systems.
* tests/tail-2/retry.sh: Likewise.
Reported by Assaf Gordon

8 years agols: improve alignment of quoted names
Pádraig Brady [Fri, 19 Feb 2016 04:07:23 +0000 (20:07 -0800)] 
ls: improve alignment of quoted names

This provides better alignment when some names are quoted,
which also provides better indication that quotes are not
part of the name.

* src/ls.c (align_variable_outer_quotes): A new variable
set when ls is aligning columns (not using -m, non-zero -w),
and has a variable quoting style (shell, shell-escape, c-maybe).
(quote_name_buf): Writes to buffer rather than FILE,
taking care to avoid data copying if possible.  Refactored from...
(quote_name): ...here.  This now manages the buffer passed
to quote_name_buf() and outputs the padding, colors and name
in the appropriate order, while managing the --dired offsets.
(get_color_indicator): A new function to return the color sequence,
refactored from...
(print_color_indicator): ...here.  This now simply outputs.
(print_dir): Refactor common parts to quote_name().
(clear_files): Reset the flag indicating at least one
file is quoted in the current directory.
(needs_quoting): A new function to indicate at the scan stage
whether a name needs quoting.  Called from...
(gobble_file): ...here, until we find the first quoted file.
(print_name_with_quoting): Mostly refactored to quote_name().
* tests/ls/quote-align.sh: A new test for various output formats.
* tests/local.mk: Reference the new test.
* NEWS: Mention the improvement.

8 years agob2sum: a new checksum utility with md5sum like interface
Pádraig Brady [Mon, 31 Oct 2016 13:29:34 +0000 (13:29 +0000)] 
b2sum: a new checksum utility with md5sum like interface

Note we don't support the --algorithm option of the
b2sum command in the external BLAKE2 project, as that
was deemed too confusing for users.
"BLAKE2b" was chosen as the default algorithm to use,
which is single threaded but performs well on 64 bit.

* src/blake2: CC0 source copied from external project.
* cfg.mk[VC_LIST_ALWAYS_EXCLUDE_REGEX]: Exclude blake2/
from syntax checks, make update-copyright, etc.
* src/local.mk: Reference the sources for b2sum,
and set the compilation flags.
* doc/coreutils.texi (b2sum invocation): Reference the
md5sum invocation node, and add descriptions of -l.
* tests/misc/b2sum.sh: Add new test.
* tests/local.mk: Reference new test.
* AUTHORS: Add new binary.
* README: Likewise.
* build-aux/gen-lists-of-programs.sh: Likewise.
* man/.gitignore: Likewise.
* scripts/git-hooks/commit-msg: Likewise.
* man/b2sum.x: New man page template.
* man/local.mk: Reference new template.
* src/.gitignore: Ignore new binaries.
* src/blake2/.gitignore: Ignore new build atrifacts.
* src/md5sum.c (usage): Describe the new -l option.
* NEWS: Mention the new program.

8 years agomaint: avoid "make distcheck" failure due to excess .deps directories
Jim Meyering [Wed, 14 Sep 2016 21:16:40 +0000 (14:16 -0700)] 
maint: avoid "make distcheck" failure due to excess .deps directories

* Makefile.am (my-distcheck): Remove all .deps directories before the
recursive diff that searches for left-behind files.  Otherwise, with
automake master (some time after v1.15), "make distcheck" would fail
due to those directories being left behind after "make distclean".

8 years agocp: improve status message when omitting directories
Pádraig Brady [Sat, 19 Nov 2016 11:26:43 +0000 (11:26 +0000)] 
cp: improve status message when omitting directories

* src/copy.h (cp_options): Add a new flag for install(1).
* src/copy.c (copy_internal): For cp, also output remediation
advice which also indicates why directories aren't copied by default.
The message is unchanged for install(1).
* src/cp.c (cp_option_init): Init install_mode to false.
* src/mv.c (cp_option_init): Likewise.
* src/install.c (cp_option_init): Init install_mode to true.
* tests/install/basic-1.sh: Add a test case.
* tests/cp/link-deref.sh: Adjust test case.
Fixes http://bugs.gnu.org/24958

8 years agotests: fix non portable date in recent test
Pádraig Brady [Wed, 16 Nov 2016 01:58:36 +0000 (01:58 +0000)] 
tests: fix non portable date in recent test

* tests/misc/date.pl: Years < 1900 fail on solaris at least.
Reported by Assaf Gordon

8 years agotests: fix false failure on OS X
Pádraig Brady [Tue, 15 Nov 2016 21:27:31 +0000 (21:27 +0000)] 
tests: fix false failure on OS X

* tests/misc/sort-h-thousands-sep.sh: The sv_SE locale
may be available while sv_SE.utf8 is not.  Therefore
test and use the same locale, now definfed in a variable.
Reported by Jim Meyering.

8 years agodircolors: highlight Motion JPEG multimedia files
Antonio Ospite [Wed, 14 Sep 2016 14:13:26 +0000 (16:13 +0200)] 
dircolors: highlight Motion JPEG multimedia files

* src/dircolors.hin: Add .mjpg and .mjpeg multimedia files.
This resolves http://bugs.gnu.org/24436.

8 years agotests: use "returns_" rather than explicit comparison with "$?"
Jim Meyering [Wed, 9 Nov 2016 01:57:41 +0000 (19:57 -0600)] 
tests: use "returns_" rather than explicit comparison with "$?"

The previous "returns_"-using change failed to convert many
uses of "$?".  Convert all but two of the remaining ones.
* tests/ls/stat-vs-dirent.sh: Likewise.
* tests/misc/head-write-error.sh: Likewise.
* tests/misc/nice.sh: Likewise.
* tests/misc/nohup.sh: Likewise.
* tests/misc/stdbuf.sh: Likewise.
* tests/misc/sync.sh: Likewise.
* tests/tail-2/pid.sh: Likewise.
* tests/tail-2/wait.sh: Likewise.
Thanks to Bernhard Volker for spotting this.

8 years agoall: reduce usage of proper_name_utf8()
Pádraig Brady [Sun, 13 Nov 2016 14:08:48 +0000 (14:08 +0000)] 
all: reduce usage of proper_name_utf8()

This reduces a standard coreutils install size by about 160K.

* src/cat.c: Change to proper_name() which removes about 18K text.
* src/cp.c: Likewise.
* src/df.c: Likewise.
* src/du.c: Likewise.
* src/getlimits.c: Likewise.
* src/realpath.c: Likewise.
* src/split.c: Likewise.
* src/stdbuf.c: Likewise.
* src/timeout.c: Likewise.
* src/truncate.c: Likewise.
* src/local.mk: Remove -llibiconv from the above programs.
* cfg.mk (sc_check-AUTHORS): Adjust to use factor(1).
* AUTHORS: Adjust to use ASCII to satisfy sc_check-AUTHORS.

8 years agomaint: add 'returns_' to exclude list in sc_prohibit_and_fail_1
Bernhard Voelker [Sun, 13 Nov 2016 17:16:32 +0000 (18:16 +0100)] 
maint: add 'returns_' to exclude list in sc_prohibit_and_fail_1

The previous commit v8.25-96-g22063c8 lets 'make syntax-check' fail,
because the above check falsely detects a case where 'returns_' is
already in use.

* cfg.mk (sc_prohibit_and_fail_1): Add 'returns_' to exclude list.

8 years agotests: use "returns_" rather than explicit comparison with "$?"
Jim Meyering [Wed, 9 Nov 2016 01:57:41 +0000 (19:57 -0600)] 
tests: use "returns_" rather than explicit comparison with "$?"

* tests/chmod/no-x.sh: Likewise.
* tests/cp/no-deref-link1.sh: Likewise.
* tests/cp/no-deref-link2.sh: Likewise.
* tests/cp/no-deref-link3.sh: Likewise.
* tests/du/move-dir-while-traversing.sh: Likewise.
* tests/ls/infloop.sh: Likewise.
* tests/ls/stat-failed.sh: Likewise.
* tests/ls/time-style-diag.sh: Likewise.
* tests/misc/chroot-fail.sh: Likewise.
* tests/misc/env-null.sh: Likewise.
* tests/misc/env.sh: Likewise.
* tests/misc/nice-fail.sh: Likewise.
* tests/misc/printenv.sh: Likewise.
* tests/misc/timeout.sh: Likewise.
* tests/tail-2/follow-name.sh: Likewise.

8 years agotail: only retry file open if --retry specifed
Pádraig Brady [Wed, 9 Nov 2016 19:28:23 +0000 (19:28 +0000)] 
tail: only retry file open if --retry specifed

* src/tail.c (tail_file): On failure to open a file,
set ignore=true when --retry is not specified.
* tests/tail-2/assert-2.sh: Adjust to the new behavior.
* tests/tail-2/retry.sh: Add a test case.  Also change
from `tail ... && fail=1` to the more robust `returns_ 1 ...`
construct which detects segfaults etc.
* NEWS: Document the fix.

8 years agotail: ensure -f --retry 'missing' handles truncation
Pádraig Brady [Wed, 9 Nov 2016 17:51:13 +0000 (17:51 +0000)] 
tail: ensure -f --retry 'missing' handles truncation

* src/tail.c (tail_forever): The BLOCKING optimization is only
enabled for non regular files (which can't be truncated), so ensure
we don't enable that unless we've a valid file descriptor.
* tests/tail-2/retry.sh: Add a test case.
* NEWS: Mention the bug fix.

8 years agotail: avoid outputting repeated data with remote files
Pádraig Brady [Wed, 9 Nov 2016 17:23:04 +0000 (17:23 +0000)] 
tail: avoid outputting repeated data with remote files

* src/tail.c (tail_forever): Only read up to st_size on network
file systems to avoid the issue with a stale attribute cache
returning a smaller st_size than we have already read().
The was seen with glusterfs at least and caused the complete
file to be repeatedly output due to assuming the file was
truncated in this case.
* NEWS: Mention the fix.

8 years agotail: terminate when following pipes and untailable non pipes
Pádraig Brady [Tue, 8 Nov 2016 17:34:44 +0000 (17:34 +0000)] 
tail: terminate when following pipes and untailable non pipes

* src/tail.c (ignore_pipe_or_fifo): Mark the descriptor as -1
for pipes so that any_live_files() detects correctly that
the entry is no longer live.
* tests/tail-2/pipe-f.sh: Add a test case.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/24903 which was detected
using Symbolic Execution techniques developed in
the course of the SYMBIOSYS research project at
COMSYS, RWTH Aachen University.

8 years agomaint: misc tweaks to recent changes
Pádraig Brady [Sun, 6 Nov 2016 21:34:12 +0000 (21:34 +0000)] 
maint: misc tweaks to recent changes

* doc/coreutils.texi(cut invocation): Give a more accurate description
of cut field handling limitations.
* tests/misc/stat-fmt.sh: Fix the test header to be more general.
* tests/tail-2/retry.sh: Spellings.

8 years agomaint: refactor printing of backup suffix --help
Pádraig Brady [Wed, 2 Nov 2016 23:56:53 +0000 (23:56 +0000)] 
maint: refactor printing of backup suffix --help

* src/system.h (emit_backup_suffix_note): A new function to
output the backup suffix info.  The strings are unchanged,
so translations are not impacted.
* src/cp.c (usage): Use the new function.
* src/ln.c (usage): Likewise.
* src/mv.c (usage): Likewise.
* src/install.c (usage): Likewise.

8 years agomaint: simplify handling of backup --suffix in various tools
Rishabh Dave [Wed, 2 Nov 2016 23:43:47 +0000 (23:43 +0000)] 
maint: simplify handling of backup --suffix in various tools

* src/cp.c (main): Avoid the getenv("SIMPLE_BACKUP_SUFFIX") call,
which is now done if needed in the gnulib backupfile module.
Also avoid the redundant strdup, as we don't modify this suffix.
* src/install.c (main): Likewise.
* src/ln.c (main): Likewise.
* src/mv.c (main): Likewise.
Fixes http://bugs.gnu.org/23153

8 years agodate: add %q to output the quarter of the year
Pádraig Brady [Wed, 19 Oct 2016 21:57:57 +0000 (14:57 -0700)] 
date: add %q to output the quarter of the year

* doc/coreutils.texi (date invocation): Document %q.
* src/date.c (usage): Likewise.
* tests/misc/date.pl: Add a test case.
* cfg.mk (sc_strftime_check): Adjust to allow %q.
* NEWS: Mention the new feature.

8 years agoall: update gnulib submodule to latest
Pádraig Brady [Sat, 5 Nov 2016 17:14:41 +0000 (17:14 +0000)] 
all: update gnulib submodule to latest

Incorporating these coreutils specific changes:
  backupfile: initialize default suffix within the implementation
  strftime,strptime: support %q to represent the quarter

Also sync these copies with gnulib:
* bootstrap: Now supports AIX.
* gnulib: Update to the latest.
* tests/init.sh: dash(1) is now disabled.

8 years agodoc: clarify in texinfo that cut doesn't reorder fields
Pádraig Brady [Sat, 5 Nov 2016 12:16:34 +0000 (12:16 +0000)] 
doc: clarify in texinfo that cut doesn't reorder fields

* doc/coreutils.texi (cut invocation): Clarify the more
sophisticated field processing supported by awk(1).
Fixes http://bugs.gnu.org/24881

8 years agostat: make --format=%N honor the QUOTING_STYLE env var
Pádraig Brady [Thu, 3 Nov 2016 15:36:48 +0000 (15:36 +0000)] 
stat: make --format=%N honor the QUOTING_STYLE env var

* doc/coreutils.texi (stat invocation): Describe the
QUOTING_STYLE values now supported.
* src/stat.c (getenv_quoting_style): A new function called
from main, that sets the default quoting style for quotearg.
(main): Call getenv_quoting_style() when %N specified.
* tests/misc/stat-fmt.sh: Add a test case.
* NEWS: Mention the improvement.
Fixes http://bugs.gnu.org/23422

8 years agodoc: improve the --help description of ls -N
Pádraig Brady [Thu, 3 Nov 2016 19:24:25 +0000 (19:24 +0000)] 
doc: improve the --help description of ls -N

* src/ls.c (usage): The existing description was inaccurate
as -N does not directly impact whether control characters
are displayed or not.

8 years agodd: warn about counts specified with confusing 0x prefix
Pádraig Brady [Fri, 4 Nov 2016 16:55:58 +0000 (16:55 +0000)] 
dd: warn about counts specified with confusing 0x prefix

* src/dd.c (parse_integer): Suggest to use "00x" instead of "0x",
which is significant for the "count", "seek", and "skip" operands.
* tests/dd/misc.sh: Add a test case.
Fixes http://bugs.gnu.org/24874

8 years agomd5sum,sha*sum: fix --ignore-missing with checksums starting with 00
Pádraig Brady [Wed, 26 Oct 2016 14:45:01 +0000 (15:45 +0100)] 
md5sum,sha*sum: fix --ignore-missing with checksums starting with 00

* NEWS: Mention the fix.
* src/md5sum.c (digest_file): Add a new MISSING parameter to
return whether the file was missing, separately from the digest.
* tests/misc/md5sum.pl: Add a test case.
Fixes http://bugs.gnu.org/24795

8 years agodoc: fix typo in stdbuf man page
Bishop Bettini [Sat, 22 Oct 2016 00:31:22 +0000 (17:31 -0700)] 
doc: fix typo in stdbuf man page

* man/stdbuf.x: Correct spelling of immediately.
Fixes http://bugs.gnu.org/24763

8 years agomaint: we use die; remove now-unnecessary uses of abort
Jim Meyering [Sun, 16 Oct 2016 18:28:39 +0000 (11:28 -0700)] 
maint: we use die; remove now-unnecessary uses of abort

* src/expr.c (integer_overflow): Remove an abort-after-die.
* src/paste.c (write_error): Likewise.
* src/sort.c (badfieldspec): Likewise.
* src/tr.c (string2_extend): Likewise. Also remove a few
break statements, each after an abort.

8 years agoall: use die() rather than error(EXIT_FAILURE)
Pádraig Brady [Sat, 15 Oct 2016 22:10:35 +0000 (23:10 +0100)] 
all: use die() rather than error(EXIT_FAILURE)

die() has the advantage of being apparent to the compiler
that it doesn't return, which will avoid warnings in some cases,
and possibly generate better code.
* cfg.mk (sc_die_EXIT_FAILURE): A new syntax check rule to
catch any new uses of error (CONSTANT, ...);

8 years agobuild: also distribute new file, src/die.h
Jim Meyering [Sat, 15 Oct 2016 22:27:48 +0000 (15:27 -0700)] 
build: also distribute new file, src/die.h

* src/local.mk (noinst_HEADERS): Add die.h.

8 years agobuild: add die.h; avoid new warnings from GCC 7
Jim Meyering [Wed, 5 Oct 2016 02:20:46 +0000 (19:20 -0700)] 
build: add die.h; avoid new warnings from GCC 7

* src/die.h (die): New file/function from grep.
Note: we expect this file to migrate to gnulib.
* src/csplit.c: Include die.h.
(check_format_conv_type): Use die in place of error-nonzero;break;
* src/install.c (strip): Likewise.
* src/nl.c (proc_text): Likewise.  This also suppresses a new warning
from GCC 7's -Werror=strict-overflow.
* src/tail.c (parse_options): Likewise.
* src/basename.c (main): Adjust "fall through" comment
so that GCC 7's -Wimplicit-fallthrough honors it.
* src/cp.c (main): Add a "fall through" comment.
* src/ls.c (gobble_file): Likewise.
(get_funky_string): Adjust a "fall through" comment so it is
recognized.
* cfg.mk (exclude_file_name_regexp--sc_system_h_headers): Add die.h
to this list of exempt src/*.h files.

8 years agomaint: pr: avoid new GCC 7 warning
Jim Meyering [Wed, 14 Sep 2016 18:48:33 +0000 (11:48 -0700)] 
maint: pr: avoid new GCC 7 warning

* src/pr.c (main): Avoid this warning from GCC 7:
src/pr.c:1119:6: error: assuming signed overflow does not occur when \
  simplifying conditional to constant [-Werror=strict-overflow]
   if (n_files == 0)

8 years agognulib: update to latest and adapt printf-quote.sh test
Jim Meyering [Mon, 3 Oct 2016 16:00:48 +0000 (09:00 -0700)] 
gnulib: update to latest and adapt printf-quote.sh test

* .gitignore: Add /lib/limits.h.
* tests/misc/printf-quote.sh: Reflect that a single quote is now
rendered as "'", rather than as ''\'''.

8 years agorm: disallow --n alias for --no-preserve-root
Pádraig Brady [Tue, 4 Oct 2016 12:43:32 +0000 (13:43 +0100)] 
rm: disallow --n alias for --no-preserve-root

* src/rm.c (main): Ensure the full --no-preserve-root
option is specified, rather than allowing --n etc.
* tests/rm/r-root.sh: Add a test case.
* NEWS: Mention the change in behavior.

Improved by Jim Meyering.
Fixes http://bugs.gnu.org/24604

8 years agotail: -F now always processes initially untailable files
Pádraig Brady [Wed, 21 Sep 2016 17:42:40 +0000 (18:42 +0100)] 
tail: -F now always processes initially untailable files

which was not the case when inotify was not available.

* src/tail.c (any_live_files): Simplify, since the IGNORE
flag is now only set when a file should be ignored indefinitely.
(recheck): Only output the "giving up on name" message
when that's actually the case.  Only set the IGNORE flag
when ignoring a file indefinitely.
(tail_file): Likewise.
* tests/tail-2/retry.sh: Add a test case.  Also run
all existing test cases with and without inotify.
NEWS: Mention the fix.
THANKS.in: Add the reporter.
Fixes http://bugs.gnu.org/24495 which was detected
using Symbolic Execution techniques developed in
the course of the SYMBIOSYS research project at
COMSYS, RWTH Aachen University.

8 years agowho: avoid new warning from upcoming gcc-7
Jim Meyering [Thu, 22 Sep 2016 14:56:15 +0000 (07:56 -0700)] 
who: avoid new warning from upcoming gcc-7

* src/who.c (idle_string): This function would fail to compile
with -Werror and today's built-from-git gcc due to this warning:
src/who.c: In function 'print_user':
src/who.c:201:36: error: may write format character ':' at offset 4 \
  past the end of the destination [-Werror=format-length=]
           sprintf (idle_hhmm, "%02d:%02d",
                                    ^~~~~
The fix is to use an assertion to inform gcc of the existing
invariant that guarantees the number of hours is less than 24.