Pádraig Brady [Thu, 31 Aug 2017 00:16:23 +0000 (17:16 -0700)]
tests: skip tests upon failure to set SELinux context
On some setups the root:object_r:tmp_t context is invalid.
This does indicate a limitation in the test framework,
but for now we'll relax this to skipping the tests.
The tests still run on a Fedora 25 system for example.
* tests/cp/cp-a-selinux.sh: Upon chcon error, skip rather than ERROR.
* tests/install/install-Z-selinux.sh: Likewise.
* tests/misc/chcon.sh: Likewise.
* tests/misc/runcon-no-reorder.sh: Likewise.
* tests/misc/selinux.sh: Likewise.
* tests/mkdir/restorecon.sh: Likewise.
Pádraig Brady [Wed, 30 Aug 2017 07:55:34 +0000 (00:55 -0700)]
tty: fix exit code with EINVAL
* src/tty.c (main): All systems mention that isatty()
man return EINVAL as well as (the POSIX compliant) ENOTTY.
Also Centos 6 was seen to return EINVAL from ttyname().
* tests/misc/tty.sh: Fix a test issue where we assume
standard input is always a valid tty.
Reported by Assaf Gordon on OpenSolaris 5.10 and 5.11,
and Centos 6.5
Pádraig Brady [Wed, 30 Aug 2017 07:27:41 +0000 (00:27 -0700)]
runcon: revert "disable use of the TIOCSTI ioctl"
This reverts commit v8.27-97-g8cb06d4 because
the setsid() fallback was not implemented correctly
and disabling the ioctl was not a complete solution
to the security issue of the child being passed
the tty of the parent.
Given runcon is not really a sandbox command,
the advice is to use `runcon ... setsid ...`
to avoid this particular issue.
Pádraig Brady [Wed, 30 Aug 2017 06:42:54 +0000 (23:42 -0700)]
stat: fix determination of max name length on BSD systems
We only use one of statfs or statvfs for `stat -f`
and on the BSDs we use statfs which doesn't have the
f_namelen member. However on OpenBSD and later FreeBSD
systems statfs does provide f_namemax, so use that.
* NEWS: Mention the improvement for OpenBSD and FreeBSD.
* m4/stat-prog.m4: Check for f_namemax in the statfs struct.
* src/stat.c: Return '?' rather than '*' when we can't
determine the max length of the file system.
* tests/ln/sf-1.sh: This test was failing on all BSDs
due to '*' being returned for the max length which
caused the test to attempt to create 1Mi+1 names.
The test now uses a short name when we can't determine
the max name length to use.
Reported by Assaf Gordon on various BSD based systems.
Pádraig Brady [Mon, 28 Aug 2017 08:57:54 +0000 (01:57 -0700)]
runcon: disable use of the TIOCSTI ioctl
Similar to the issue with SELinux sandbox (CVE-2016-7545),
children of runcon can inject arbitrary input to the terminal
that would be run at the originating terminal privileges.
The new libseccomp dependency is widely available and used
on modern SELinux systems, but is not available by default
on older systems like RHEL6 etc.
* m4/jm-macros.m4: Check for libseccomp and
warn if unavailable on selinux supporting systems.
* src/local.mk: Link runcon with -lseccomp.
* src/runcon.c (disable_tty_inject): A new function to
disable use of the TIOCSTI using libseccomp, or with setsid()
where libseccomp is unavailable.
* tests/misc/runcon-no-inject.sh: A new test that uses
python to make the TIOCSTI call, and ensure that doesn't succeed.
* tests/local.mk: Reference the new test
* NEWS: Mention the fix.
Addresses http://bugs.gnu.org/24541
Pádraig Brady [Mon, 21 Aug 2017 10:53:36 +0000 (03:53 -0700)]
ls: support --hyperlink to output file:// URIs
Terminals such as iTerm2 and VTE based terminals
(as of version 0.49.1), support hyperlinks when
passed terminals codes as described at:
https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda
* src/ls.c (gobble_file): Allocate an absolute file name to output.
(quote_name): Output the absolute name with the appropriate codes.
(file_escape): A new function to encode file names as per rfc8089.
(main): Handle the new option and call the file_escape_init() helper.
Disable --dired when --hyperlink is specified.
(print_dir): Get the absolute file name here too, so that the
directory name can be linkified.
* NEWS: Mention the new feature.
* tests/ls/hyperlink.sh: Add a new test.
* tests/local.mk: Reference the new test.
* doc/coreutils.texi (ls invocation): Describe --hyperlink.
Pádraig Brady [Tue, 29 Aug 2017 04:09:08 +0000 (21:09 -0700)]
doc: remove older ChangeLog items
This saves about 0.5MB uncompressed from the tarball.
* Makefile.am: Following on from v8.26-34-g2c64bc8
update the oldest documented version to 8.18 which
is now about 5 years old. Also remove older ChangeLogs
that were previously thought to be for changes not
in the git history, but are adequately recorded upon review.
* build-aux/ChangeLog-2007: Remove file.
* lib/ChangeLog-2007: Likewise.
* m4/ChangeLog-2007: Likewise.
Colin Watson [Sun, 27 Aug 2017 07:16:21 +0000 (08:16 +0100)]
env: add --chdir option
This is useful when chaining with other commands that run commands in a
different context, while avoiding using the shell to cd, and thus
having to consider shell quoting the chained command.
* NEWS (New features): Document the new option.
* doc/coreutils.texi (env invocation): Likewise.
* src/env.c (usage): Likewise.
(main): Implement the new option.
* tests/misc/env.sh: Test the new option.
Josef Cejka [Mon, 31 Jul 2017 23:50:34 +0000 (01:50 +0200)]
df: avoid stat() for dummy file systems with -l
When systemd is configured to automount a remote file system - see
'man systemd.automount(5)', then the mount point is initially
mounted by systemd with the file system type "autofs".
When the resource is used later on, then the wanted file system is
mounted over that mount point on demand.
'df -l' triggered systemd to mount the file system because it called
stat() on the mount point.
Instead of single-casing "autofs" targets, we can avoid stat()ing
all dummy file systems (which includes "autofs"), because those are
skipped later on in get_dev() anyway.
*src/df.c (filter_mount_list): Also skip dummy file systems unless
the -a option or a specific target are given.
* NEWS: Mention the fix.
Co-authored-by: Bernhard Voelker <mail@bernhard-voelker.de>
Fixes http://bugzilla.suse.com/show_bug.cgi?id=1043059
Assaf Gordon [Tue, 27 Jun 2017 23:53:58 +0000 (19:53 -0400)]
doc: fix realpath index entry
The 'readlink' node has '@findex realpath' in it. This results in
info doc/coreutils.info realpath
incorrectly jumping to the 'readlink' node (instead of the 'realpath'
node). Change it to @cindex instead.
* doc/coreutils.texi (readlink): Change '@findex realpath' to @cindex.
Assaf Gordon [Sat, 24 Jun 2017 23:47:26 +0000 (19:47 -0400)]
realpath: improve usage description for --relative-{to,base}
* src/realpath.c (usage): Explicitly say 'DIR' instead of 'FILE' for
--relative-{to,base} parameters, to avoid giving the impression
that regular files can be used as relative base.
* doc/coreutils.texi (realpath): Same.
Pádraig Brady [Thu, 24 Aug 2017 07:18:41 +0000 (00:18 -0700)]
ls: consistently quote symlink targets
* src/ls.c (gobble_file): Disable the optimization to avoid quoting
if the symlink target itself needs quoting. This was introduced
with the quoting alignment adjustments in v8.25-106-g01971c0
* tests/ls/symlink-quote.sh: Add a test.
* tests/local.mk: Reference the test.
* NEWS: Mention the fix.
Pádraig Brady [Tue, 22 Aug 2017 04:00:01 +0000 (21:00 -0700)]
tail: reinstate inotify use with FIFOs
commit v8.27-44-g18f6b22 was too aggressive in
only allowing inotify use with regular files. This will
support responsive processing of `tail -f fifo | ...`
* src/tail.c (any_non_regular): Adjust to allow FIFOs
since inotify supports these well.
* tests/tail-2/inotify-only-regular.sh: Adjust comment.
Pádraig Brady [Sat, 19 Aug 2017 22:36:54 +0000 (15:36 -0700)]
tests: fix issues on alpine linux
* tests/misc/seq-epipe.sh: Remove stale comment.
* tests/misc/sort-debug-warn.sh: musl doesn't indicate a set_locale()
failure with missing locales, so avoid a test portion in that case.
* tests/misc/wc-files0.sh: Avoid a bug on older ash implementations.
Addresses http://bugs.gnu.org/28054
Paul Eggert [Thu, 17 Aug 2017 19:02:16 +0000 (12:02 -0700)]
ptx: fix some integer overflow bugs
Problem reported by Lukas Zachar at:
http://bugzilla.redhat.com/1482445
* src/ptx.c (line_width, gap_size, maximum_word_length)
(reference_max_width, half_line_width, before_max_width)
(keyafter_max_width, truncation_string_length, compare_words)
(compare_occurs, search_table, find_occurs_in_text, print_spaces)
(fix_output_parameters, define_all_fields):
Use ptrdiff_t, not int, for object offsets and sizes.
(WORD, OCCURS): Use ptrdiff_t, not short int.
(WORD_TABLE, number_of_occurs, generate_all_output):
Prefer ptrdiff_t to size_t where either will do.
(total_line_count, file_line_count, OCCURS, fix_output_parameters)
(define_all_fields):
Use intmax_t, not int, for line counts.
(DELTA): Remove. All uses changed.
(OCCURS, find_occurs_in_text, fix_output_parameters):
Use int, not size_t, for file indexes.
(tail_truncation, before_truncation, keyafter_truncation)
(head_truncation, search_table, define_all_fields)
(generate_all_output):
Use bool for booleans.
(digest_word_file, find_occurs_in_text):
Use x2nrealloc instead of checking for overflow by hand.
(find_occurs_in_text, fix_output_parameters, define_all_fields):
Omit unnecessary cast.
(fix_output_parameters): Don’t assume integers fit in 11 digits.
(fix_output_parameters, define_all_fields):
Use sprintf return value rather than calling strlen.
(define_all_fields): Do not rely on sprintf to generate a string
that may contain more than INT_MAX bytes.
(main): Use xstrtoimax, not xstrtoul.
Use xnmalloc to catch integer overflow.
Paul Eggert [Thu, 17 Aug 2017 16:28:59 +0000 (09:28 -0700)]
sort: use pthread_sigmask, not sigprocmask
POSIX says sigprocmask has unspecified behavior in a multithreaded
program like ‘sort’.
* src/sort.c (pthread_sigmask) [GNULIB_defined_pthread_functions]:
New macro, for use when ‘sort’ is not multithreaded.
(cs_enter, cs_leave): Use it. Pass address, not value, as
this is typically a tad faster. All callers changed.
Paul Eggert [Thu, 17 Aug 2017 15:03:57 +0000 (08:03 -0700)]
sort: file descriptor discipline
Use O_CLOEXEC when creating file descriptors, so that subsidiary
processes do not inherit file descriptors that they do not need.
This is helpful for ‘sort’, as it is a multithreaded program that
forks and execs.
* bootstrap.conf (gnulib_modules): Add mkostemp, open, pipe2.
* src/sort.c (create_temp_file): Open temporary file with O_CLOEXEC.
(stream_open): Open the stream with O_CLOEXEC.
(pipe_fork): Create the pipe with O_CLOEXEC.
(check_output): Open the output file with O_CLOEXEC.
(main): Use xfopen/xfclose to handle --files0-from, so that
O_CLOEXEC is used properly. This is simpler anyway.
* tests/misc/sort-files0-from.pl: Adjust to change in diagnostic
wording.
* src/operand2sig.c (operand2sig): AIX uses a different bit pattern
in the returned status from the wait() functions and from shells.
Therefore hardcode the selection of the lower bits of the number.
* NEWS: Mention the fix.
Pádraig Brady [Fri, 4 Aug 2017 06:39:26 +0000 (23:39 -0700)]
build: use the appropriate single file include option with xlc
* configure.ac: Set USE_XLC_INCLUDE when __xlc__ is defined.
* src/local.mk: Use it to select the appropriate include option.
Reported by Michael Felt.
Pádraig Brady [Fri, 4 Aug 2017 04:20:08 +0000 (21:20 -0700)]
tests: avoid false failures on AIX
* tests/ln/sf-1.sh: Limit the symlink size to 1MiB
to avoid memory exhaustion seen on NFS on AIX, giving:
+ printf '%0*d' 4294967296 0
+ ./tests/ln/sf-1.sh: line 38: printf: warning: 0: Result too large
* tests/id/setgid.sh: Skip the test when the adjusted gid
would equal 4294967295, as that's reserved on AIX.
Reported by Michael Felt.
Pádraig Brady [Sun, 13 Aug 2017 07:45:32 +0000 (00:45 -0700)]
sort: handle musl locale differences in --debug reporting
* src/sort.c (main): Don't assume hard_LC_COLLATE implies
a successful setting of the locale as musl defaults to
UTF8 when failing to set the specified locale.
* tests/misc/sort-debug-warn.sh: Adjust for the now
separated locale debug info and map the musl specific
message back to the common case.
Addresses https://bugs.gnu.org/28054
Pádraig Brady [Sun, 13 Aug 2017 07:18:43 +0000 (00:18 -0700)]
seq: produce consistent error messages upon write error
* src/seq.c (io_error): Use the same error message as would
be generated at exit time when closing the stdout stream.
The inconsistency was added with commit v8.25-26-gc92585b.
This was noticed due to an inconsistency in the expected
error message generated by seq on musl libc.
Addresses https://bugs.gnu.org/28054
Pádraig Brady [Sun, 13 Aug 2017 06:53:33 +0000 (23:53 -0700)]
tests: fix false failure with large printf formats
* tests/misc/printf-surprise.sh: With musl libc the
large printf format does succeed, outputting data.
To avoid SIGPIPE being generated we ignore that signal
and then handle the subsequent EPIPE error.
Addresses https://bugs.gnu.org/28054
Jim Meyering [Sat, 12 Aug 2017 20:51:19 +0000 (13:51 -0700)]
build: adjust warning options to work with latest GCC
* configure.ac: Disable some new warnings to avoid false positives.
Building with warnings enabled and latest gcc would evoke build
failure without these changes. Disable the following in coreutils
proper: -Wformat-overflow=2 -Wformat-truncation=2, and
disable these for gnulib: -Wformat-truncation=2 -Wduplicated-branches
Pádraig Brady [Thu, 3 Aug 2017 03:20:22 +0000 (20:20 -0700)]
maint: avoid a syntax-check failure
* src/shred.c (wipename): As per the comment, the arguments
to error() are sufficiently quoted, so split the call over
multiple lines to avoid the syntax-check.
Paul Eggert [Tue, 1 Aug 2017 20:14:03 +0000 (13:14 -0700)]
copy: go back to failing 'cp --backup a~ a'
Suggested by Kamil Dudka in:
http://lists.gnu.org/archive/html/coreutils/2017-07/msg00072.html
* NEWS: Document the changed nature of the fix.
* doc/coreutils.texi, tests/cp/backup-is-src.sh:
* tests/mv/backup-is-src.sh: Revert previous change.
* src/copy.c (source_is_dst_backup): New function.
(copy_internal): Use it. Fail instead of falling back on numbered
backups when it looks like the backup will overwrite the source.
Although this reintroduces a race, it's more compatible with
previous behavior.
Paul Eggert [Mon, 31 Jul 2017 00:11:24 +0000 (17:11 -0700)]
copy: make backup files more reliably
* NEWS, doc/coreutils.texi (Backup options): Document the change.
* bootstrap.conf (gnulib_modules): Add backup-rename.
* src/copy.c (copy_internal): Silently switch to numbered backups
if a simple backup might lose data. Use backup_file_rename
to avoid races with numbered backups.
* tests/cp/backup-is-src.sh, tests/mv/backup-is-src.sh:
Adjust to match new behavior.
Paul Eggert [Mon, 31 Jul 2017 00:11:24 +0000 (17:11 -0700)]
shred: avoid rename race
Use renameat2 to avoid a rename race condition, on recent-enough
GNU/Linux.
* bootstrap.conf (gnulib_modules): Add renameat2.
* src/shred.c: Include renameat2.h.
(wipename): Use renameat2 instead of rename.
* src/shred.c (dopass): shred used to read the input file,
and so needed to ensure internal memory was cleared.
This is no longer the case since SH-UTILS-1_16f-260-gf381610
so avoid this redundant clearing.
(do_wipefd): Likewise.
* NEWS: Remove the recent mention of this issue.
* tests/misc/sync.sh: Normalize the error messages
when syncing a non read/write directory, as AIX
gives the "Is a directory" error.
Also ensure that sync(1) returns an error for this
case on all systems.
Jim Meyering [Sat, 8 Jul 2017 11:01:55 +0000 (13:01 +0200)]
groups: do not exit early
Most programs take care to operate on all command-line-specified
operands before exiting. That is an important feature that allows
to identify all problems with the first run. However, groups would
exit upon the first problematic user name.
Bug introduced via commit v6.10-56-g167b8025ac.
* src/groups.c (main): Do not exit immediately upon error.
* tests/misc/groups-process-all.sh: New file. Test for this.
* tests/local.mk (all_tests): Add it.
* NEWS (Bug fixes): Mention this.
Jim Meyering [Sat, 8 Jul 2017 10:01:34 +0000 (12:01 +0200)]
tests: groups-dash.sh: avoid false failure
* tests/misc/groups-dash.sh: Avoid false failure on a system for which
"none" is a valid user name. The first invocation would succeed, and
the second would fail with "groups: ‘--’: no such user".
Use a user name that cannot exist.
Assaf Gordon [Wed, 28 Jun 2017 01:23:52 +0000 (01:23 +0000)]
expr: add multibyte support
Discussed in https://bugs.gnu.org/26779 .
* NEWS: Mention the improvement.
* bootstrap.conf: Add gnulib modules mbslen,mbschr.
* src/expr.c (mbs_logical_substr): New function to return a substring
based on logical character positions (instead of bytes).
(mbs_logical_cspn): Similar to strcspn/mbscspn, but returns number of
logical characters instead of byte offset.
(mbs_offset_to_chars): New function to return number of logical
characters fitting in a given byte offset.
(docolon): Report matched logical characters instead of bytes.
(eval6): For length/substr/index operations, use logical characters
instead of bytes by calling the above new functions.
* tests/misc/expr.pl: Repeat all tests with non-C locale to detect any
regressions.
* tests/misc/expr-multibyte.pl: New tests with multibyte input.
* tests/local.mk: Add new test file.
Jim Meyering [Tue, 20 Jun 2017 14:53:17 +0000 (07:53 -0700)]
maint: avoid spurious "make distcheck" failure
When the generated file, doc/constants.texi, happens to be older than
doc/coreutils.info, it will not be updated until/unless its generated
contents change. This is due to way that rule is careful to update
the file, to avoid provoking a pointless rerunning of makeinfo.
Note that this does not happen when one first runs "make distclean",
as recommended in README-release. However, I sometimes run it as
a more-rigorous "make check", and shouldn't have to manually run
"make distclean" first, in that case.
Before this change, one could reproduce the failure by running
`touch -dyesterday doc/constants.texi && make distcheck`. It would
fail with "makeinfo: could not open ../../doc/coreutils.info-t
for writing: Permission denied"
* Makefile.am (dist-hook): Touch the two generated files, so that
they cannot be out of date wrt doc/coreutils.texi.
Pádraig Brady [Sat, 17 Jun 2017 06:50:47 +0000 (23:50 -0700)]
tail: only use inotify with regular files
* src/tail.c (any_non_regular): A new function to check passed files.
(main): Use the above to skip inotify if any non regular files passed
like /dev/tty or /dev/ttyUSB0 etc.
* tests/tail-2/inotify-only-regular.sh: A new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/21265 and http://bugs.gnu.org/27368
Pádraig Brady [Thu, 15 Jun 2017 09:41:14 +0000 (02:41 -0700)]
tail: with -f don't warn if doing a blocking read of a tty
* src/tail.c: (main): Only issue the warning about -f being
ineffective when we're not going into simple blocking mode.
* tests/tail-2/follow-stdin.sh: Ensure the warning is output correctly.
Fixes http://bugs.gnu.org/27368
* src/tail.c (check_output_alive): A new function that
uses select on fifos or pipes to detect if they're broken.
(tail_forever): Call check_output_alive() periodically.
(tail_forever_inotify): Merge the select() call from
check_output_alive() into the select() originally present
for the --pid case, and adjust accordingly.
* tests/tail-2/pipe-f.sh: Add test cases.
* NEWS: Mention the improvement.
Pádraig Brady [Wed, 7 Jun 2017 07:17:57 +0000 (00:17 -0700)]
tail: with --pid, ensure all inotify events are processed
* NEWS: Mention the bug fix.
* src/tail.c (tail_forever_inotify): With --pid, avoid waiting
for new events if there are still events to process.
* tests/tail-2/inotify-dir-recreate.sh: Adjust to trigger.
Pádraig Brady [Sat, 3 Jun 2017 04:50:04 +0000 (21:50 -0700)]
copy: don't fail when unable to chown symlinks
* src/copy.c (copy_internal): Honor the x->require_preserve flag
for symlinks as we do for ordinary files, so we don't exit with
failure upon failure to chown a symbolic link.
* NEWS: Mention the bug fix.
Prateek saxena [Thu, 11 May 2017 11:46:02 +0000 (12:46 +0100)]
uptime: remove inconsistent AM/PM from current time
* src/uptime.c (main): 00-23 was always used for the hour component
of the current time, so remove the AM/PM output (which was only
present in some locales anyway). Also add seconds to the time
to be more consistent with the usual procps-ng uptime implementation
on GNU/Linux.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/26783
doc: update the instructions for generating a coverage report
* HACKING: Change from explicit instructions to using gnulib
provided coverage testing targets. Also include instructions
for adding root only tests to the report.
Fixes http://bugs.gnu.org/26709
date,touch: test and document large TZ security issue
Add a test for CVE-2017-7476 which was fixed in gnulib at:
http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=commitdiff;h=94e01571
* tests/misc/date-tz.sh: Add a new test which overwrites enough
of the heap to trigger a segfault, even without ASAN enabled.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Paul Eggert [Mon, 24 Apr 2017 07:06:00 +0000 (00:06 -0700)]
dd: status=progress outputs "6 s", not "6.00001 s"
Problem reported by Benno Schulenberg (Bug#26621).
* NEWS: Document this.
* src/dd.c (print_xfer_stats): With status=progress,
format times with %.0f rather than %g. Improve
translator comments.
Paul Eggert [Sat, 22 Apr 2017 09:44:03 +0000 (02:44 -0700)]
date: adjust to gnulib parse-datetime changes
* doc/coreutils.texi (Options for date): Capitalize a sentence.
* tests/misc/date-debug.sh: Adjust --debug output to match
recent changes to Gnulib’s parse-datetime module.
shred: fix invalid pattern generation for certain sizes
* src/shred.c (fillpattern): Fix the "off by one" issue when
testing whether we have enough space to copy the already
written portion of the buffer to the remainder of the buffer.
Specifically for buffer sizes that are (3*(2^x))+1, i.e. 7,13,...
we both use an uninitialized byte and invoke undefined
behavior in memcpy() operation on overlapping memory regions.
* tests/misc/shred-passes.sh: Add an invocation that will
trigger either valgrind UMR, or ASAN like:
ERROR: AddressSanitizer: memcpy-param-overlap: memory ranges
#1 0x403065 in fillpattern src/shred.c:293
A direct test is awkward due to the random writes surrounding
the problematic pattern writes.
Fixes http://bugs.gnu.org/26545
tail: revert to polling if a followed directory is replaced
* src/tail.c (tail_forever_inotify): Add the IN_DELETE_SELF flag when
creating watch for the parent directory. After the parent directory
is removed, an event is caught and then we switch from inotify to
polling mode. Till now, inotify has always frozen because it waited for
an event from a watched dir, which has been already deleted and was not
added again.
* tests/tail-2/inotify-dir-recreate.sh: Add a test case.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/26363
Reported at https://bugzilla.redhat.com/1283760
Paul Eggert [Wed, 5 Apr 2017 18:34:42 +0000 (11:34 -0700)]
tty: handle misconfigured namespaces
On some platforms, isatty succeeds but ttyname fails.
POSIX does not seem to allow this, but there it is.
Problem reported by Christian Brauner (Bug#26371).
While we’re at it, check for errors more carefully and return a
new exit status 4 if stdin is closed or a similar error occurs.
* doc/coreutils.texi (tty invocation): Document new behavior.
* init.cfg (stderr_fileno_):
Don't assume have_input_tty is not in the environment.
* src/tty.c (TTY_STDIN_ERROR): New constant.
(main): Exit with nonzero status if there is a usage error,
like other coreutils programs.
Check for error in getting stdin type.
* tests/misc/tty.sh: New file.
* tests/local.mk (all_tests): Add it.
doc: refactor and update expand and unexpand --help
* src/expand-common.c (emit_tab_list_info): A new function to
output the extended info on --tab=LIST, including the new
'+' and '/' prefixes.
* src/expand-common.h: Declare the above.
* src/expand.c (usage:): Call emit_tab_list_info and
match alignment with that used in unexpand --help.
* src/unexpand.c (usage): Likewise.
Jacob Keller [Tue, 28 Mar 2017 22:49:50 +0000 (15:49 -0700)]
expand,unexpand: add support for incremental tab stops
Support --tabs="1,+8" which is equivalent to --tabs="1,9,17,..."
useful for viewing unified diff output with its 1 character
gutter for example.
* doc/coreutils.texi ({expand,unexpand} invocation): Document,
using diff processing as the example.
* src/expand-common.c (set_increment_size): Update the new
increment_size global.
(parse_tab_stops): Handle the new '+' prefix.
(finalize_tab_stops): Verify both '+' and '/' prefixes
are not used together.
* tests/misc/expand.pl: Add test cases.
* NEWS: Mention the new feature.
Ludovic Courtès [Tue, 28 Mar 2017 03:34:39 +0000 (20:34 -0700)]
tests: avoid false ulimit failure on some systems
* tests/misc/cut-huge-range.sh: On some systems returns_ may
use more memory, so incorporate that in the determination
of the ulimit value to use. Noticed on ARMv7 with bash-4.4.12,
and x86_64 with bash-4.2.37.
Fixes http://bugs.gnu.org/26253
Michael Heimpold [Fri, 24 Mar 2017 20:36:39 +0000 (21:36 +0100)]
split: add new --hex-suffixes option
* doc/coreutils.texi (split invocation): Document the new option.
* src/split.c (usage): Likewise.
(main): Process the new option much like --numeric-suffixes,
but with an adjusted alphabet.
* tests/split/numeric.sh: Refactor to support --hex mode.
* NEWS: Mention the new feature.
* src/md5sum.c (split_3): Verify hex digits internally before
triggering the global bsd_reversed mode flag.
(bsd_split_3): Likewise.
* tests/misc/md5sum-bsd.sh: Add a test case.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/26263
Philipp Thomas [Mon, 27 Mar 2017 05:34:00 +0000 (22:34 -0700)]
df: avoid querying excluded file systems
* src/df.c (filter_mount_list): Avoid stat() on
explicitly excluded file systems, which is especially
significant in cases like `-x nfs` which may hang.
* NEWS: Mention the bug fix.
Pádraig Brady [Mon, 20 Mar 2017 06:00:05 +0000 (23:00 -0700)]
maint: avoid a static analysis warning in expand-common
* src/expand-common.c (next_file): We're dependent on calling
this function with NULL to initialize things appropriately.
So enforce this with assert(), which avoids a warning from
clang-anaylzer.
Pádraig Brady [Mon, 20 Mar 2017 00:22:34 +0000 (17:22 -0700)]
split: process more efficiently when filters exit early
* src/split.c (bytes_split): Don't write to an existing filter
if it has exited. When filters exit early, skip input data if
possible. Refactor out 2 redundant variables.
* tests/split/filter.sh: Improve test coverage given the
new more efficient processing. Also use a 10TB file to
expand the file systems tested on.
Pádraig Brady [Mon, 20 Mar 2017 05:36:23 +0000 (22:36 -0700)]
split: ensure input is processed when filters exit early
commit v8.25-4-g62e7af0 introduced the issue as it
broke out of the processing loop irrespective of
the value of new_file_flag which was used to indicate
a finite number of filters or not.
For example, this ran forever (as it should):
$ yes | split --filter="head -c1 >/dev/null" -b 1000
However this exited immediately due to EPIPE being propagated
back through cwrite and the loop not considering new filters:
$ yes | split --filter="head -c1 >/dev/null" -b 100000
Similarly processing would exit early for a bounded number of
output files, resulting in empty data sent to all but the first:
$ truncate -s10T big.in
$ split --filter='head -c1 >$FILE' -n 2 big.in
$ echo $(stat -c%s x??)
1 0
I was alerted to this code by clang-analyzer,
which indicated dead assigments, which is often
an indication of code that hasn't considered all cases.
* src/split.c (bytes_split): Change the last condition in
the processing loop to also consider the number of files
before breaking out of the processing loop.
* tests/split/filter.sh: Add a test case.
* NEWS: Mention the bug fix.
Pádraig Brady [Sat, 11 Mar 2017 18:44:46 +0000 (10:44 -0800)]
tests: avoid a false failure on OS X 10.5.8
* tests/misc/sort-debug-keys.sh: Disparate LC_CTYPE and LC_MESSAGES
are not supported, with the result LC_MESSAGES=C is used throughout.
Therefore just set LC_ALL in the test, and normalize the message
variants with sed.
Reported and tested by J Rogowsky.
projects / thirdparty / coreutils.git / log
