* src/copy.c (copy_internal): Use the lint protected src_mode,
rather than accessing the src_sb again. Also unconditionally
populate src_sb when !x->move_mode and in lint mode.
Reported by Kamil Dudka with coverity and clang analyzer.
* src/env.c (main): Don't process '-' specially since
that causes an issue on the openbsd getopt implementation
where a lone '-' is now processed as an option, and anyway
it doesn't particuarly help diagnosing common shebang
usage issues. Also don't restrict the extra diagnostics
for shebang usage to the case with 3 arguments, as
further arguments can be passed to a script.
* tests/misc/env-S.pl: Adjust accordingly.
On OpenBSD 6.2, invalid single options produce error messages
without single quotes:
$ ./src/chroot -/
chroot: unknown option -- /
As opposed to other systems:
./src/chroot: invalid option -- '/'
Modify the grep search to accept this.
* tests/misc/usage_vs_getopt.sh (checkprg): Change the grep pattern
to accomodate no-single-quotes cases.
The module is not needed anymore (was used during development).
Despite being a Perl core module, platforms like CentOS don't install
it by default. Reported by Bruno Haible at
https://lists.gnu.org/r/coreutils/2018-06/msg00093.html.
* tests/misc/csplit-suppress-matched.pl: Remove Data::Dumper.
Add attribute 'malloc' to mpz_get_str to prevent
the following on GCC 8.1.1
src/expr.c:117:1: error: function might be candidate for attribute
'malloc' if it is known to return normally
[-Werror=suggest-attribute=malloc]
mpz_get_str (char const *str, int base, mpz_t z)
^~~~~~~~~~~
cc1: all warnings being treated as errors
* src/expr.c (mpz_get_str): Add _GL_ATTRIBUTE_MALLOC.
* gnulib: Update to latest.
* .gitignore: Add new entries.
* bootstrap.conf: Enable wchar-single, which will enable more
efficient replacements of wcwidth and mbrtowc, as we indicate
that the charset will no change between invocations of these functions.
* src/local.mk (fs_normalize_perl_subst): `make src/fs-magic-compare`
was reporting incorrectly that AFS was not being handled.
Add a mapping to our KAFS identifier.
* .gitignore: Add intermediate files from `make src/fs-magic-compare`
With an uninitialized variable 'fail', the unquoted use like
test $fail = 1
lead to the shell error
"unary operator expected".
The uninitialized 'fail' variable was a side effect of
https://git.sv.gnu.org/cgit/gnulib.git/commit/?id=e91c0d4f9
which was pulled into coreutils-v8.26 with
https://git.sv.gnu.org/cgit/coreutils.git/commit/?id=ef9650170
Coreutils test code relied and relies on 'fail' to be initialized,
so initialize that variable here.
* tests/local.mk (TESTS_ENVIRONMENT): Initialize fail=0.
* src/remove.c (rm_fts): With the --preserve-root=all extension,
reject command line arguments that are mount points.
* src/remove.h (rm_options): Add preserve_all_root to store config.
* src/mv.c (rm_option_init): Init preserve_all_root to false.
* src/rm.c (main): Init preserve_all_root as per option.
(usage): Describe the new option.
* src/remove.c (rm_fts): Lookup the parent device id,
and reject the cli argument if a separate file system.
* tests/rm/one-file-system.sh: Add a test case.
* NEWS: Mention the new feature.
This mode is currently the default, but most if not all users of
reflink-capable filesystems want --reflink=auto, which is often
encapsulated into an alias. Adding --reflink=never allows overriding
such an alias.
* doc/coreutils.texi (cp invocation): Describe the new option.
* src/cp.c: Support --reflink=never.
* tests/cp/reflink-auto.sh: Add a test case.
* NEWS: Mention the new feature.
Adopted from FreeBSD's env(1), useful for specifing multiple
parameters on a shebang (#!) script line, e.g:
#!/usr/bin/env -S perl -w -T
Discussed in https://lists.gnu.org/r/coreutils/2018-04/msg00011.html
* src/env.c (valid_escape_sequence,escape_char,scan_varname,
extract_varname,validate_split_str,build_argv,
parse_split_string): New functions.
(main): Process new option and call parse_split_string.
(usage): Mention new option.
* tests/misc/env-S.pl: Test new option from the command line.
* tests/misc/env-S-script.sh: Test new option from shebang scripts.
* tests/local.mk (all_tests): Add new tests.
* man/env.x (OPTIONS): Show a brief example of -S usage and point to
the full documentation for more information.
* doc/coreutils.texi (env invocation): Detail usage of -S/--split-string
option.
* NEWS: Mention new option.
Keep unset envvars (-uFOO) in an array for later deletion,
instead of reiterating over argv. Done in preparation for
'-S string' feature. Related to '-u' discussion in
https://lists.gnu.org/r/coreutils/2018-04/msg00013.html
* src/env.c (append_unset_var,unset_envvars): New functions.
(main): Use new functions.
* src/ls.c (get_color_indicator): s/STREQ_LEN/c_strncasecmp/
* src/dircolors.hin: Remove a now redundant entry.
* tests/ls/color-ext.sh: Add a new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the change in behavior.
* doc/coreutils.texi (md5sum invocation): Describe the new option,
and how it's not supported by --check, and how it disables escaping.
* src/md5sum.c (delim): A new global to parmeterize the out delimiter.
(main): Don't enable file name escaping with -z, and output '\0'.
* tests/misc/md5sum-newline.pl: Add a test case.
* NEWS: Mention the new feature.
===== Benchmark setup (on GNU/Linux) ====
$ yes áááááááááááááááááááá | head -n100000 > mbc.txt
$ yes 12345678901234567890 | head -n100000 > num.txt
===== Before ====
$ time src/wc -Lm < mbc.txt
real 0m0.186s
$ time src/wc -m < mbc.txt
real 0m0.186s
$ time src/wc -Lm < num.txt
real 0m0.055s
$ time src/wc -m < num.txt
real 0m0.056s
==== After ====
$ time src/wc -Lm < mbc.txt
real 0m0.196s
$ time src/wc -m < mbc.txt
real 0m0.173s
$ time src/wc -Lm < num.txt
real 0m0.031s
$ time src/wc -m < num.txt
real 0m0.028s
* src/wc.c (wc): Only call wide variant functions like
iswprint() and wcwidth() for non is_basic() characters.
I.E. non ISO C "basic character set" characters.
This is especially significant on OSX where wcwidth()
is very expensive (about 10x in tests).
* NEWS: Mention the improvement.
Suggested by Eric Fischer.
Problem reported by Eric S. Raymond (Bug#31803).
* man/test.x: Add SYNOPSIS section, since help2man
understandably gets confused by the square brackets.
* src/ln.c (usage): Omit parenthetical "(Nth form)" in usage,
as it confuses doclifter.
This issue was introduced in commit v8.19-145-g24ebca6
* src/copy.c (copy_internal): With --no-preserve=mode,
only reset permissions for newly created files.
(copy_reg): Likewise.
* NEWS: Mention the fix.
* tests/cp/preserve-mode.sh: Add a test case.
Fixes https://bugs.gnu.org/31675
* tests/ls/abmon-align.sh: Base relative month adjustment
from the middle of the month, to avoid failures due
to months being repeated.
Fixes https://bugs.gnu.org/31644
Avoid warnings from: groff -b -e -mandoc -T utf8 -rF0 -t -w w -z
* man/du.x: Change ".BR" to ".B" if there is only one argument.
Protect an end-of-sentence indicator (.?!) with '\&'
if it does not mean an end of a sentence.
Change '--' to '\-\-' if it indicates an option.
* man/rm.x: Change '\=' to '='.
* src/copy.c (copy_internal): Don't fail immediately upon
getting ELOOP when running stat() on the destination,
rather proceeding if -f specified, allowing the link
to be removed. If the loop is not in the final component
of the destination path, we still fail but at the
subsequent unlink() stage.
* doc/coreutils.texi (cp invocation): Adjust wording to say
that --force doesn't work with dangling links, rather than
all links that can't be traversed.
* tests/cp/thru-dangling.sh: Add a test case.
* NEWS: Mention the change in behavior.
Discussed in https://bugs.gnu.org/31335
Ensure this _does_ recreate the symlink
Given "path1" and "path2" are on different devices.
$ touch "path1/file"
$ cd path2/; ln -s path1/file
$ cp -dsf path1/file .
Ensure this does _not_ overwrite file
$ touch file
$ ln -s file l1
$ cp -sf l1 file
* src/copy.c (same_file_ok): Remove device ids from consideration,
instead deferring to future EXDEV with --link or allowing
the first case above to work.
Also ensure that we do not exist this function too early,
when the destination file is not a symlink, which protects
against the second case.
* tests/cp/cross-dev-symlink.sh: Add a test for the first case.
* tests/cp/same-file.sh: Add a test for the second case above.
* NEWS: Mention the bug fixes.
* THANKS.in: Mention the reporters who also analyzed the code.
Fixes https://bugs.gnu.org/31364
* src/cp.c (target_directory_operand): Allow through inaccessible
arguments with -f or --remove.
* doc/coreutils.texi (cp invocation): Clarify that -f doesn't directly
impact the removal of non-traversable symlinks.
* tests/cp/dir-rm-dest.sh: Test the new behavior.
* tests/cp/thru-dangling.sh: Enforce -f behavior wrt symlinks.
* NEWS: Mention the bug fix.
Fixes https://bugs.gnu.org/31335
* src/chmod.c: Deallocate the mode change array in dev mode.
* src/chown.c: Make chopt_free() actually deallocate, but
only call in dev mode.
* src/chgrp.c: Likewise.
* src/chown-core.h (chopt_free, gid_to_name, uid_to_name):
No longer const.
* src/make-prime-list.c (xalloc): Add malloc attribute.
* src/who.c (make_id_equals_comment): Work around GCC bug 85602
by using mempcpy rather than strncat. Although the old code
was correct, strncat raises so many hackles that it’s not
worth maintaining its use here.
* NEWS: Expand on the 8.28 description of how tail more
responsively reacts to closed output, and move from "Improvements"
to "Changed behavior".
* cfg.mk (old_NEWS_hash): Regenerate.
Fixes https://bugs.gnu.org/31225
* src/timeout.c (usage): Mention that a duration of 0 disables
the associated timeout, which is both concise info and useful
functionality as timeouts are frequently configured.
Increase max range from SIZE_MAX to UINTMAX_MAX, which will
allow cut to support line lengths up to the max file size
on all systems. The inherent SIZE_MAX limitation in cut was
removed with the enhancements in https://bugs.gnu.org/13127.
Also numfmt gets similarly increased --field ranges due to
shared code.
* src/cut.c: s/size_t/uintmax_t/.
* src/numfmt.c: Likewise.
* src/set-fields.c: Likewise.
* src/set-fields.h: Likewise.
* tests/misc/cut-huge-range.sh: Adjust accordingly.
* tests/misc/numfmt.pl: Likewise.
* NEWS: Mention the improvement.
Problem reported by Karl Berry (Bug#30963).
* NEWS: Mention this.
* src/ls.c (decode_switches): Implement this.
* tests/ls/a-option.sh: New file.
* tests/local.mk (all_tests): Add it.
This will impact relatively few languages,
and will make Arabic or Catalan etc.
output unambiguous abbreviated month names.
* src/ls.c (MAX_MON_WIDTH): Increase from 5 to 12.
* NEWS: Mention the bug fix.
* tests/ls/abmon-align.sh: Augment to check for ambiguous output.
Fixes https://bugs.gnu.org/30814
Enhanced XFS (EXFS) is a version of XFS maintained by HPE.
EXFS uses a unique magic number to allow the use of community
XFS, and EXFS filesystems at the same time.
* src/stat.c (human_fstype): Add file system ID definition,
and use "exfs" as the name.
* NEWS: Mention the Improvement.
Problem reported by John Wiersba (Bug#30718)
* src/stat.c (human_time): Avoid giving an integer constant
expression a name, as it runs afoul of a bug in IBM XL C/C++ for
AIX 12.01.0000.0002.
This issue was introduced in commit v8.19-145-g24ebca6
* src/copy.c (copy_internal): When setting default permissions
to use with --no-preserve=mode, only set executable bits for
directories or sockets.
* NEWS: Mention the fix.
* tests/cp/preserve-mode.sh: Add a test case.
Fixes https://bugs.gnu.org/30534
* doc/coreutils.texi: Use @example consistently
as we don't need the smaller or fixed width representation.
This is especially true for the synopsis of commands.
@smallexample is rendered left aligned for HTML
which is awkward to read with the center aligned main content.
This builds on a previous patch for mv atomicity (Bug#29961).
It merely improves performance; it does not fix bugs.
* src/copy.h (struct cp_options): New members last_file, rename_errno.
* src/copy.c (copy_internal): Support new rename_errno member
for the copy options. Avoid calling stat when new members
suggest it’s not needed.
(cp_options_default): Initialize new members.
* src/mv.c: Include renameat2.h.
(main): With two arguments, first call ‘renamat2 (AT_FDCWD, "a",
AT_FDCWD, "b", RENAME_NOREPLACE)’. Use its results to skip
remaining processing if possible; for example, if it succeeds
there is no need to stat either "a" or "b". Also, set
x.last_file when it is the last file to rename.
Problem reported by Kamil Dudka (Bug#29961).
* NEWS: Mention this.
* src/copy.c: Include renameat2.h.
(copy_internal): If mv, try renameat2 first thing, with
RENAME_NOREPLACE. If this works, skip most of the remaining code.
Also, fail quickly if it fails with EEXIST, and we are using -n.
In both chown and chgrp (which shares its code with chown), operating
on symlinks recursively has a window of vulnerability where the
destination user or group can change the target of the operation.
Warn about combining the --dereference, --recursive, and -L flags.
* doc/coreutils.texi (warnOptDerefWithRec): Add macro.
(node chown invocation): Add it to --dereference and -L.
(node chgrp invocation): Likewise.
See also: CVE-2017-18018
* NEWS: Mention these fixes.
* doc/coreutils.texi (cp invocation, mv invocation):
Mention that -n is silent, and that it overrides -u.
* src/cp.c, src/mv.c (main): -n overrides -u.
* doc/coreutils.texi: the documentation for the --dereference
flag of chown/chgrp states that it is the default mode of
operation. Document that this is only the case when operating
non-recursively.
* tests/misc/shred-remove.sh: AIX xargs defaults to using
'_' to indicate end of input, thus ignoring it.
Rather than specifying -E to avoid this behavior, simplify
by removing sed and xargs usage.
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.
* tests/tail-2/pipe-f.sh: Close stdout in a subshell
to ensure the current shell isn't impacted. Subsequent
piped commands like `echo foo | blah` were seen to fail
due to the previous closing of stdout.
Reported by Assaf Gordon.
* README: Document the new handling of 32 bit time_t,
with examples of how to build in 64 bit mode on AIX.
Also mention that GNU make is desired on AIX
due to its mishandling of the "[" target.
Suggested by Assaf Gordon.
* tests/misc/ptx.pl: Escape the '^' character which is
otherwise considered as a line continuation character.
* tests/misc/shred-remove.sh: sed doesn't support \n.
* tests/misc/timeout.sh: dash outputs the "Killed"
message to stderr rather than the terminal.
* tests/misc/usage_vs_getopt.sh: dash doesn't yet
support the POSIX proposed $'...' shell quoting syntax.
* src/ptx.c (fix_output_parameters): GCC 6.3.1 with
./configure --enable-single-binary would give:
error: assuming signed overflow does not occur
when simplifying conditional to constant [-Werror=strict-overflow]
if (file_index > 0)
So change the type of file_index to signed (size_t).
* src/tail.c (tail_bytes): On systems were blksize_t is unsigned
and the same size or wider than off_t (android for example),
our initialized (off_t) -1 would be promoted to unsigned before
comparison, and thus fail to follow the appropriate path.
* tests/tail-2/tail-c.sh: Add a test case.
* NEWS: Mention the fix.
This issue was introduced in commit v8.23-47-g2662702
Reported at https://github.com/termux/termux-app/issues/233
* m4/jm-macros.m4: Check for the header.
* src/dd.c: Avoid the workaround where the header
is not available (on non glibc systems).
* src/shred.c: Likewise.
* src/ls.c (usage): Clarify -k only applies to -s usage
and directory 'total' lines. Move the description
of TIME_STYLE out of the option section as it was awkward
to read and write there within 80 columns.
* man/chmod.x: Update the information to state one can
clear the setuid and setgid bits for directories numerically
using an additional leading '0' or a leading '='.
That has been supported since v8.15-64-g8931cdb.
Fixes https://bugs.gnu.org/29390
* doc/coreutils.texi (cp invocation): The language used
to describe recreating the file was a little confusing
as it mentioned opening a removed file.
Fixes https://bugs.gnu.org/29315
Verify that all options mentioned in usage are actually recognized
by the program.
* tests/misc/usage_vs_getopt.sh: Add test.
* tests/local.mk (all_tests): Reference it.
Co-authored-by: Pádraig Brady <P@draigBrady.com>
* tests/cp/preserve-mode.sh: This was the only use of awk,
which may not be available on the system resulting
in an ineffective test. Also the permissions bits for
directories were not being checked at all.
* src/timeout.c (main): Add short option character 'v' to getopt_long
call.
* tests/misc/timeout.sh: Run the test both for the long and the short
option.
* src/dd.c (iread): Handle read error with a non-aligned
file offset in the O_DIRECT case. This is not an issue
on XFS at least, but on EXT4 the final read will return
EINVAL rather than the expected 0 to indicate EOF.
* tests/dd/direct.sh: Test the iflag=direct case also.
* NEWS: Mention the improvement.
This is useful as handling in shell is complicated
with the varying exit status in the --kill-after case.
* src/timeout.c (main): Handle '-v' and store
COMMAND for the diagnostic.
(cleanup): Diagnose the signal name before sending.
(usage): Document -v, --verbose.
* doc/coreutils.texi (timeout invocation): Likewise.
* tests/misc/timeout.sh: Add a test case.
* NEWS: Mention the new feature
Fixes https://bugs.gnu.org/21760
* src/tail.c (tail_bytes): Try lseek(..., SEEK_END) when
we can't determine the file size.
* tests/tail-2/end-of-device.sh: Add a new root only test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the improvement.
Paul Eggert suggested using lseek() (rather than ioctl(BLKGETSIZE64)).
Fixes https://bugs.gnu.org/29259
These templates instruct contributors not to use github, and instead
use the upstream GNU development resources. Discussed in
http://lists.gnu.org/archive/html/coreutils/2017-11/msg00007.html .
* .github/ISSUE_TEMPLATE.txt,
.github/PULL_REQUEST_TEMPLATE.txt: New files.
Older versions of 'makeinfo' choke on a missing reference:
./doc/coreutils.texi:14177: `Realpath usage examples' has no Up field\
(perhaps incorrect sectioning?).
makeinfo: Removing output file `doc/coreutils.info' due to errors; \
use --force to preserve.
* doc/coreutils.texi (realpath invocation): Add a menu referencing
the usage examples - introduced in v8.27-91-g7449f0d.
Suggested by L A Walsh in https://bugs.gnu.org/28763 .
* src/stat.c (fmt_terse_fs): Define format for --terse -f here.
(fmt_terse_regular): Define format for --terse here.
(fmt_terse_selinux): Likewise for when SELinux is enabled.
(default_format): Use the above constants.
(usage): Output the formats for the terse modes.
* src/df.c (main): stat() before open(), and avoid
the optional open when given a fifo argument.
* tests/df/unreadable.sh: Add a test case.
* NEWS: Mention the fix.
Fixes https://bugs.gnu.org/29038
* src/ls.c (DEFINE_SORT_FUNCTIONS): Apply _GL_ATTRIBUTE_PURE
to each strcmp-derived function definition, since GCC8 with
-Wsuggest-attribute=pure now warns it is needed.
* man/stat.x (SEE ALSO): Mention statfs(2) in addition to stat(2).
Note statfs() is generally used rather than statvfs(),
so we'll defer that reference to the SEE ALSO section of statfs(2).
Fixes https://bugs.gnu.org/28989
* tests/dd/nocache_eof.sh: Only run the O_DIRECT tests
when 512 byte alignment is supported. Otherwise with older
XFS on systems with > 1MiB pages, or on file systems not
supporting O_DIRECT, there would have been false failures.
* tests/dd/direct.sh: Clarify the skip message.
Previously with oflag=direct the call to invalidate_cache()
was not passed to the kernel, as it was less than a page size,
and a subsequent call was not made to invalidate the pending space.
Similarly with oflag=nocache the pending space at EOF was
not invalidated. Even though these amount to only a single page
in the page cache it can be significant. For example on
XFS before kernel patch v4.9-rc1-4-g0ee7a3f, O_DIRECT files
would have been read inefficiently if any pages were cached,
even if they were already synced to storage.
* src/dd.c (i_nocache_eof, o_nocache_eof): New bools used
to control when we want invalidate_cache(,0) to clear to EOF.
(cache_round): Use IO_BUFSIZE (currently 132KiB) to minimize
calls to the relatively expensive advise function, rather
than page_size. This also makes it clear that while the
kernel function operates on pages, this size is chosen for
performance reasons.
(invalidate_cache): Refactor to share more code between
input and output paths. Use i_nocache_eof and o_nocache_eof
rather than proxying off max_records. Ensure we
invalidate full pages when clearing to EOF as the kernel
will ignore any non complete pages. Fix the offset used
for the output path.
(dd_copy): Invalidate the cache of the input after the
offset is updated, for consistency and so we don't try to
invalidate before the start of the file. When we read
EOF on input, set flags so that we invalidate to EOF.
(main): Invalidate to EOF in more cases, by depending
on the i_nocache_eof and o_nocache_eof flags.
* doc/coreutils.texi (dd invocation): Clarify the alignment
and persisted caveats on the example applying "nocache"
to part of a file.
* tests/dd/nocache_eof.sh: A new test.
* tests/local.mk: Reference the new test.
* NEWS: Mention the bug fix.
Issue reported by Eric Bergen.
This should have been part of commit v8.28-17-gf926f7c
* src/stty.c (check_argument): Align line continuation chars,
and ensure the function macro is immune to usage with if/else.
Suggested by Jim Meyering and Paul Eggert.
This was a latent issue that became significant with
the addition of the -F option in FILEUTILS-3_16n-56-ge46a424
* src/stty.c (apply_settings): Refactor argument checking
to a function macro. Augment the argument check to ignore
NULLed out arguments (already processed -F).
* NEWS: Mention the fix.
* tests/misc/stty-invalid.sh: Add a test case.
Fixes https://bugs.gnu.org/28859
This fixes a regression from commit v8.26-39-g2f69dba
* src/timeout.c (block_cleanup_and_chld): Rename from block_cleanup
to indicate we also block SIGCHLD to avoid the race where SIGCHLD
fires between waitpid() polling and sigsuspend() waiting for a signal.
* NEWS: Mention the fix.
We inherit the signal mask from our parent process,
therefore ensure SIGCHLD is not blocked.
If SIGCHLD is blocked, sigsuspend() won't be interrupted
when the child process exits and we hang until the timeout (SIGALRM).
This fixes a regression from commit v8.26-39-g2f69dba
* src/timeout.c (install_sigchld): Ensure SIGCHLD is unblocked.
* NEWS: Mention the issue.
man pages change little between systems,
so falling back to distributed pages make sense
when cross compiling or lacking perl.
* man/local.mk: Add all man pages to EXTRA_DIST
so that they're distributed in the generated tarball.
Use the dummy-man page generator if cross compiling.
Set TZ to avoid a distcheck failure where man pages
used a diffent month than those rebuilt (with a .timestamp).
* man/dummy-man: Only fall back to generating a stub
if copying an existing man page fails.
* man/help2man: Sync portable TZ=UTC0 specification
from upstream help2man.
* NEWS: Mention the build-related change.
Fixes https://bugs.gnu.org/28574
* tests/split/filter.sh: Due to an invalid 'FILE = zero.in'
construct trying to initialize a FILE variable, it would
instead try to run the FILE command which is present on
macOS 10.13 with APFS.
We also remove a redundant duplicate test clause introduced
during a rebase, and simplify the piped timeout command,
to avoid requiring a subshell and associated quoting.
* THANKS.in: Add the reporter Jack Howarth.
Fixes https://bugs.gnu.org/28506
* tests/misc/expr.pl: Skip the quote varying tests in
the multi-byte locales as these tests aren't that interesting
in those locales. Also ERR_SUBST is already defined for
some tests so awkward to redefine to munge UTF8 quotes to ASCII.
Show offending argument instead of a generic 'syntax error' message.
Suggested by Bernhard Voelker in https://bugs.gnu.org/28461#13 .
* src/expr.c (syntax_error): Remove.
(required_more_args): New function.
(eval7, main): Replace syntax_error call with detailed die message.
* tests/misc/expr.pl: Add tests for new messages.
* doc/coreutils.texi: Remove doubled word.
* src/targetdir.c: Explicitly mark exported function.
* tests/local.mk: This is not a root only test.
* tests/mv/vulnerable-target.sh: Use returns_.
Introduced in v8.28-3-g44ccd1c
This was unintentionally removed in v8.27-60-g2ae1460
* src/shred.c (wipename): Interate through all name lengths.
* tests/misc/shred-remove.sh: Add test cases.
* NEWS: Mention the bug fix.
Fixes https://bugs.gnu.org/28507
* NEWS, doc/coreutils.texi (Target directory): Document this.
* src/cp.c, src/install.c, src/ln.c, src/mv.c: Include targetdir.h.
(target_directory_operand): Use the new targetdir_operand_type
function to check for vulnerable target directories.
* src/cp.c (stat_target_operand): New function.
(target_directory_operand, do_copy): Use it.
* src/local.mk (noinst_HEADERS): Add src/targetdir.h.
(src_ginstall_SOURCES, src_cp_SOURCES, src_ln_SOURCES)
(src_mv_SOURCES): Add src/targetdir.c.
* src/targetdir.c, src/targetdir.h: New files.
* tests/mv/vulnerable-target.sh: New test.
* tests/local.mk (all_root_tests): Add it.
* src/ptx.c (find_occurs_in_text): Die with an appropriate error
diagnostic when the given regular expression returns a match of
length 0.
* tests/misc/ptx.pl (S-infloop): Add a test.
* NEWS (Bug fixes): Mention the fix.
Fixes https://bugs.gnu.org/28417 which was detected using
Symbolic Execution techniques developed in the course of the
SYMBIOSYS research project at COMSYS, RWTH Aachen University.
* tests/ls/hyperlink.sh: If the hostname or any part of
the absolute path would be changed due to URL encoding,
the test would fail. Therefore simplify to remove
these components of the URL from consideration.
* gnulib: The only change in this gnulib update
is the tagging of the fts-tests module as longrunning,
which gnulib-tool currently implicitly excludes.
This test was seen to take about 20s and 285MB.
Reported by Assaf Gordon on space restricted VMs.
* src/tty.c (main): Don't distinguish ENOTTY from other errors,
because isatty() doesn't portably distinguish errors.
Solaris returns ENOENT for all input errors for example.
Musl also returns ENOENT, and ENODEV may be returned as disscussed at:
http://openwall.com/lists/musl/2017/04/06/6
* tests/misc/tty.sh: Adjust accordingly.
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.
* 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
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.
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.
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
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.
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.
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.
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
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.
* 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.
* 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.
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.
* 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
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.
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.
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.
* 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.
* 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.
* 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
* 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
* 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
* 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
* 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.
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.
* 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.
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.
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.
* 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.
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.
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.
* 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
* 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
This will support use cases like:
tail -f file.log | grep -q trigger &&
process_immediately
* 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.
* 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.
* 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.
* 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
* 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
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.
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.
* 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.
* 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
* 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
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.
* 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.
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.
* 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
* 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
* 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.
* 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.
* 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.
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.
* 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.
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Block a user
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
