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Commit Graph

6520 Commits

Author SHA1 Message Date
Jim Meyering
f6d1f70183 tail: syntax-only: use "false", rather than equivalent, 0
* src/tail.c (record_open_fd): Initialize "->ignore" to false, not 0.
2009-09-07 23:20:01 +02:00
Jim Meyering
af6436559c tail: ignore -f for piped-stdin, as POSIX requires
* src/tail.c (main): Tailing a pipe "forever" is not useful,
and POSIX specifies that tail ignore the -f when there is no
file argument and stdin is a FIFO or pipe.  So we do that.
In addition, GNU tail excludes "-" arguments from the list of files
to tail forever, when the associated file descriptor is connected
to a FIFO or pipe.  Before this change, ":|tail -f" would hang.
Reported by Ren Yang and Ulrich Drepper.
* tests/tail-2/pipe-f: Test for this.
* tests/tail-2/pipe-f2: Ensure tail doesn't exit early for a fifo.
* tests/Makefile.am (TESTS): Add these tests.
* NEWS (POSIX conformance): Mention it.
2009-09-07 23:19:56 +02:00
Jim Meyering
a8d26b3ce1 tail: don't give up on inotify mode for an already-ignored "-"
* src/tail.c (main): Adjust today's change to honor the
F[i].ignore flag that may have been set in tail_file.
2009-09-07 20:56:38 +02:00
Jim Meyering
cdfb703c5d tail -f: handle "-"/stdin once again
* src/tail.c (main) [HAVE_INOTIFY]: When stdin (i.e., "-", or no args,
but not /dev/stdin) is specified on the command line, don't use inotify.
Reported by Bill Brelsford in <http://bugs.debian.org/545422>.
* tests/tail-2/follow-stdin: New file.  Test for this.
* tests/Makefile.am (TESTS): Add the test.
* NEWS (Bug fixes): Mention it.
This bug was introduced in coreutils-7.5 via commit ae494d4b,
2009-06-02, "tail: use inotify if it is available".
2009-09-07 09:01:14 +02:00
Jim Meyering
d54376db68 tail: flush initial output before possibly blocking
* src/tail.c (main): Flush any output from tail_file,
before calling tail_forever_inotify, which can block.
* tests/tail-2/flush-initial: New file.  Test for the bug.
* tests/Makefile.am (TESTS): Add tail-2/flush-initial.
* NEWS (Bug fixes): Mention it.
This bug was introduced in coreutils-7.5 via commit ae494d4b,
2009-06-02, "tail: use inotify if it is available".
2009-09-06 09:40:43 +02:00
Pádraig Brady
471f219ac7 doc: make the tail --sleep-interval help less confusing
* src/tail.c (usage): I read "approximately S seconds"
as "approximately 5 seconds" for approximately 5 seconds.
2009-09-05 17:25:40 +01:00
Pádraig Brady
a5e224d793 maint: remove some tab indentation from copy.c
* src/copy.c (copy_internal): Remove tabs erroneously added
in commit 3346c0af.
2009-09-05 17:22:09 +01:00
Pádraig Brady
526a057602 tests: test old tail -f method even on systems with inotify
* src/tail.c (main): Add an undocumented ---disable-inotify option
to allow disabling inotify.
* tests/tail-2/pid: Run test in both normal and "disable_inotify" modes.
* tests/tail-2/tail-n0f: Likewise.
* tests/tail-2/wait: Likewise.
* tests/tail-2/append-only: Likewise.
2009-09-05 17:19:03 +01:00
Petr Salinger
305bbd99b2 stty: use TAB0, TAB1, and TAB2 only if defined
* src/stty.c (mode_info) [TAB0, TAB1, TAB2]: Guard each
entry with #ifdef.  Required for GNU/kFreeBSD.
Reported by Petr Salinger in http://bugs.debian.org/520368.
2009-09-05 15:54:26 +02:00
Eric Blake
c692280926 ln: add comments related to POSIX 2008
* src/ln.c (ENABLE_HARD_LINK_TO_SYMLINK_WARNING): Delete.
(do_link): Update comments per POSIX; add FIXME for -L, -P.
2009-09-04 14:54:55 -06:00
Eric Blake
3346c0afbc mv, cp: tweak LINK_FOLLOWS_SYMLINKS logic
* gnulib: Update to latest gnulib.
* src/copy.c (copy_internal): Adjust comment in light of POSIX
2008, and deal with macro now being tri-state.
2009-09-04 14:54:52 -06:00
Jim Meyering
e0e8429c24 df: don't fail due to an unreadable argument
* src/df.c (main): If open or fstat fails when we're trying to ensure
that all arg-partitions are automounted, fall back on using stat.
Inspired by the report and patch from Olivier Fourdan in
http://bugzilla.redhat.com/520630.
* NEWS (Bug fixes): Mention it.
* tests/df/unreadable: New test for the above.
* tests/Makefile.am (TESTS): Add df/unreadable.
The bug was introduced in coreutils-7.3 via commit dbd17157,
2009-04-28, "df: use open(2), not stat, to trigger automounting".
2009-09-03 19:52:47 +02:00
Ondřej Vašík
1a94ac4a05 cp: don't leak resources for each xattr preservation failure
* src/copy.c (copy_reg): Don't return from the function after an
unsuccessful and required preservation of extended attributes.
This resulted in leaking the copy buffer and file descriptors.
* NEWS (Bug fixes): Mention the fix.
The bug was introduced in coreutils-7.1 via commit 0889381c, 2009-01-23,
"cp/mv: add xattr support".
2009-09-03 10:00:32 +01:00
Pádraig Brady
1b2d2635ee chcon, chmod, chgrp, chown, du: report fts_close failure
* src/du.c (du_files): Don't fail silently upon fts_close failure.
* src/chcon.c (process_files): Likewise.
* src/chmod.c (process_files): Likewise.
* src/chown-core.c (chown_files): Likewise.
2009-09-01 13:05:06 +02:00
Jim Meyering
228c8e9eec chcon, chmod, chgrp, chown, du: do not ignore fts_close failure
This is probably never visible, but who knows...
* src/chcon.c (process_files): Don't ignore fts_close failure.
* src/chmod.c (process_files): Likewise.
* src/chown-core.c (chown_files): Likewise.
* src/du.c (du_files): Likewise.
2009-09-01 12:10:07 +02:00
Jim Meyering
1ce27f74ec maint: du: remove unnecessary initialization
* src/du.c (main): Don't set "skip_file" unnecessarily.
2009-09-01 12:10:07 +02:00
Jim Meyering
b2c30136dc maint: chown, chgrp, chmod, chcon: remove unnecessary initialization
* src/chown-core.c: Include "ignore-value.h".
(change_file_owner): Don't set "ent" only to ignore it.
* src/chcon.c (process_file): Likewise.
* src/chmod.c: Include "ignore-value.h".
(process_file): Don't set "ent" only to ignore it.
After diagnosing root-dev/ino failure, return false immediately:
Now that we don't set "ent" we must be sure not to use it uninitialized,
and there's no point in issuing --verbose-related output in this case.
2009-09-01 12:10:07 +02:00
Jim Meyering
e3b14643f4 maint: shred: remove unnecessary initialization
* src/shred.c (genpattern): Value stored to "n" is never used.
2009-09-01 12:10:07 +02:00
Jim Meyering
e579a697b2 maint: dd: remove unnecessary initialization
* src/dd.c (skip): Remove set-but-never-used variable, soffset.
2009-09-01 12:10:07 +02:00
Jim Meyering
68c9b31834 maint: tail: remove unnecessary initialization
* src/tail.c (tail_bytes): Don't compute "diff" twice.
2009-09-01 12:10:07 +02:00
Pádraig Brady
8f7d8e3bc3 timeout: remove a redundant assignment
* src/timeout.c (main): While keeping argc and argv in
sync may be marginally useful, it is redundant to update argc,
so just remove that to suppress the clang warning.
2009-09-01 11:07:15 +01:00
Pádraig Brady
0b1dcf33f5 timeout: defensive handling of all wait() errors
* src/timeout.c (main): Handle all possible cases of unexpected
failures from wait().  This was prompted by the clang tool reporting
the possible non-initialization of the status variable.
2009-09-01 11:02:18 +01:00
Jim Meyering
a977dbbe78 ls -i: print consistent inode numbers also for mount points
On most unix- and linux-based kernels, ls -i DIR_CONTAINING_MOUNT_POINT
would print the wrong inode number for any entry that is a mount point.
It would do that by relying on readdir's dirent.d_ino values, while
most readdir implementations return the inode number of the underlying,
inaccessible directory.  Thus, it is not consistent with what you'd
get when applying stat to the same entry.  This bug led to surprising
results like "ls -i" and "ls -i --color" printing different numbers (ls
must usually "stat" a file to colorize its name).  This change makes it
so that on offending systems, ls must stat non-command-line-arguments
for which otherwise it would be able to use "for free" dirent.d_ino
values.  Regardless of this change, ls is already required to stat every
command-line argument.  Note: versions of GNU ls prior to coreutils-6.0
did not perform the invalid optimization, and hence always printed
correct inode numbers.  Thus, for the sake of correctness, ls -i is
forgoing the readdir optimization, for any kernel (including linux!)
with POSIX-nonconforming readdir.  Note that currently, only Cygwin has
been agile enough to conform.

* src/ls.c (RELIABLE_D_INO): Define.
(print_dir): Use it.
For plenty of discussion, see this long thread:
http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/14020
This bug was introduced by the 2006-02-26 commit, 33eb3efe:
"In ls, avoid calling stat for --inode (-i), when possible."
* tests/ls/readdir-mountpoint-inode: New test.
* tests/Makefile.am (TESTS): Add it.
* tests/ls/stat-vs-dirent: Don't suppress failure of this test,
now that ls -i is fixed.  Though note that it doesn't test well,
since it compares only the always-stat'd command-line arguments.
* NEWS (Bug fixes): Mention it.
2009-09-01 07:07:45 +02:00
Jim Meyering
a4e123abd3 maint: revert my stdbuf change: the result didn't even compile
This reverts commit c1e158489d.
2009-08-31 09:44:30 +02:00
Jim Meyering
c1e158489d maint: stdbuf: move a declaration; no-semantic-change
* src/stdbuf.c (set_program_path): Move a declaration down into
the scope where it's used.
2009-08-30 22:34:06 +02:00
Jim Meyering
12a104b45e build: quiet "make check" in src/
* src/Makefile.am (check-duplicate-no-install): Use $(AM_V_GEN).
(check-README): Likewise.  And $(AM_V_at).
2009-08-30 12:22:30 +02:00
Pádraig Brady
9e59f8c47c cp --reflink: preserve attributes on cloned files if asked
* src/copy.c (copy_reg): When cloning only skip the data copying
* tests/cp/reflink-perm: New test to check times and modes copied
* tests/Makefile.am: Reference the new test
* NEWS: Mention the fix
2009-08-29 01:37:05 +01:00
Pádraig Brady
72f98388c3 cp --reflink: add an "auto" parameter to fall back to a normal copy
* doc/coreutils.texi (cp invocation): Document the new
"auto" and "always" options to --reflink.
* src/copy.c (copy_reg): Fall back to a standard copy
when reflink() is not supported and --reflink=auto specified.
* src/copy.h [struct cp_options] (reflink): Change type s/bool/enum/.
* src/cp.c (usage): Describe the --reflink={always,auto} options
and expand a little on what --reflink does.
(main): parse the new parameters to --reflink and allow all
--sparse options with --reflink=auto.
* src/install.c (cp_option_init): Init the enum instead of bool.
* src/mv.c (cp_option_init): Likewise.
* tests/cp/reflink-auto: A new test for falling back to normal copy.
* tests/Makefile.am: Reference the new test.
* NEWS: Mention the new feature.
2009-08-29 00:24:49 +01:00
Pádraig Brady
f296cf4052 stdbuf: fix a small typo in --help output
* src/stdbuf.c (usage): s/then/the/
2009-08-28 23:35:48 +01:00
Eric Blake
359fa92f2a build: avoid unused variable warnings on cygwin
* src/copy.c (clone_file, copy_attr_by_fd, copy_attr_by_name):
Mark up unused variables.
* src/remove.c (dirent_inode_sort_may_be_useful): Likewise.
2009-08-28 12:56:53 -06:00
Eric Blake
31fa922e57 dd: detect closed stderr
* src/dd.c (maybe_close_stdout): Always flush stderr; regression
introduced in commit 381e69ea.
* tests/misc/close-stdout (p): Use consistent style.
* tests/dd/stderr: New test, borrowing from misc/close-stdout.
* tests/Makefile.am (TESTS): Run it.
* NEWS: Mention this.
2009-08-28 12:56:51 -06:00
Jim Meyering
e2808a3999 maint: remove Local Variables: indent-tabs-mode: nil from all sources
* src/getlimits.c: Likewise.
* src/group-list.c: Likewise.
* src/groups.c: Likewise.
* src/mktemp.c: Likewise.
* src/setuidgid.c: Likewise.
* src/stdbuf.c: Likewise.
* src/timeout.c: Likewise.
* src/truncate.c: Likewise.
* gl/lib/mbsalign.c: Likewise.
* tests/test-lib.sh: Likewise.
* bootstrap: Likewise.
* README-hacking: Likewise.
2009-08-25 09:21:00 +02:00
Jim Meyering
5e778f7c8d global: convert indentation-TABs to spaces
Transformed via this shell code:
t=$'\t'
git ls-files \
  | grep -vE '(^|/)((GNU)?[Mm]akefile|ChangeLog)|\.(am|mk)$' \
  | grep -vE 'tests/pr/|help2man' \
  | xargs grep -lE "^ *$t" \
  | xargs perl -MText::Tabs -ni -le \
    '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'
2009-08-25 09:21:00 +02:00
Jim Meyering
2bc0f3caaa cp: ignore obscure failure to preserve symlink time stamps,
...when run on a kernel older than what was implied by headers and
libraries tested at configure time.
* src/copy.c (utimens_symlink): Ignore failure when errno == ENOSYS.
* NEWS (Bug fixes): Mention it.
Reported by Todd Zullinger and Kamil Dudka.
Details in this thread:
http://thread.gmane.org/gmane.linux.redhat.fedora.devel/119834
2009-08-24 12:44:13 +02:00
Jim Meyering
3db7c2c03c install: avoid a portability bug when compiling with non-gcc
* src/install.c (extra_mode): Be careful to return only a 0 or 1
value, since this is a "bool" function, and there are still some
compilers for which this is necessary.  Without this change,
Bernhard Voelker reported that the Forte Developer 7 C 5.4 2002/03/09
compiler would produce a malfunctioning "install" binary.  Details in
http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/17710/focus=17760
2009-08-20 10:46:22 +02:00
Jim Meyering
112bccb26b build: avoid "make dist" failure in man/
Now that "make check" no longer builds programs like arch, ...
* src/Makefile.am (dist-hook): Depend on $(all_programs), so that the
subsequent build in man/ doesn't fail due to lack of a program like
arch that is not going to be installed.
2009-08-19 08:44:40 +02:00
Giuseppe Scrivano
718b2790c0 nl: deprecate --page-increment in favor of --line-increment
* NEWS: Mention the change.
* doc/coreutils.texi: Document the new --line-increment option.
* src/nl.c (struct option): Add --line-increment,
(usage): Describe it,
(main): Use it.
2009-08-18 18:40:41 +02:00
Jim Meyering
d25101cc30 build: perform check-AUTHORS via syntax-check, not via "make check"
* src/Makefile.am (check): Don't depend on check-AUTHORS.
That check fails on systems for which a program like stdbuf is
not built.  Instead, move this check to "make syntax-check".
(sc_check-AUTHORS): Rename rule from check-AUTHORS.
* cfg.mk (sc_check-AUTHORS): New rule.
Reported by Berhnard Voelker.
2009-08-18 12:16:36 +02:00
Jim Meyering
ea57d46482 sort: use more portable initialization syntax
* src/sort.c (find_unit_order): Spell out 256-element static
initializer, rather than relying on C99 syntax.
Required for Forte Developer 7 C 5.4 2002/03/09 on Solaris 10.
Reported by Bernhard Voelker.
2009-08-18 11:02:36 +02:00
Pádraig Brady
f0a1f0df22 cp,mv: fix issues with preserving timestamps of copied symlinks
* src/copy.c (copy_internal): On systems without utimensat don't
use utimens on a symlink, as that would dereference the symlink.
* tests/cp/abuse: To work around possible attribute preservation
failures breaking the test, use cp -dR rather than cp -a.
2009-08-14 17:10:53 +02:00
Pádraig Brady
f43f028652 tail: fix tail -f failure when inotify used
* src/tail.c (tail_forever_inotify): Remove the redundant and
incorrect error check of the return from inotify_add_watch().
Also initialize the wd member of each File_spec to an invalid value.
Reported by C de-Avillez.
2009-08-13 16:09:27 +01:00
Pádraig Brady
e4caea5775 dd: fix a signal handling race
* src/dd.c (main): Install the signal handlers at startup
rather than just before the copy starts. In this way signals
received before the copy (like during a slow truncate for e.g.)
will be deferred and handled consistently.
* THANKS: Add Bernhard's email address.
* NEWS: Mention the fix.
Reported by Bernhard Voelker.
2009-08-13 16:06:50 +01:00
Jim Meyering
e32320de66 nl, pinky: replace uses of strcat
* src/nl.c (main): Avoid strcat, on principle.  Use stpcpy instead.
* src/pinky.c (print_long_entry): Likewise.
2009-08-10 09:17:07 +02:00
Giuseppe Scrivano
a1d7469835 cp: accept the --reflink option
* NEWS: Mention it.
* doc/coreutils.texi (cp invocation): Describe it.
* src/copy.h (struct cp_options) [reflink]: New member.
* src/copy.c (usage): Describe it.
(copy_reg): If reflink is true try to clone the file.
(main): Check for --reflink.
(cp_option_init): Initialize the new member.
* src/install.c (cp_option_init): Initialize the new member.
* src/mv.c (cp_option_init): Likewise.
* tests/cp/sparse: Add a new test case.
2009-08-07 17:14:22 +02:00
Jim Meyering
ff159a605e dd: preserve semantics of O_DIRECT even for final block
* src/dd.c: Include "ignore-value.h"
(iwrite): When disabling O_DIRECT, try to compensate
via POSIX_FADV_DONTNEED and fsync.
Suggested by Eric Sandeen.
2009-08-07 16:21:35 +02:00
Jim Meyering
5929322ccb dd: work around buffer length restrictions with oflag=direct (O_DIRECT)
dd oflag=direct would fail to copy a file with size that is
not a multiple of 512 (destination file system specific)

* NEWS (Bug fixes): Mention it.
* src/dd.c (iwrite): Turn off O_DIRECT for any
smaller-than-obs-sized write.  Don't bother to restore it.
* tests/dd/direct: New test for the above.
* tests/Makefile.am (TESTS): Add dd/direct.
* doc/coreutils.texi (dd invocation): Mention oflag=direct
buffer size restriction.
Details in http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/17586
Reported by Eric Sandeen.
2009-08-06 09:41:50 +02:00
Jim Meyering
365fb90eaa dd: remove unnecessary #if HAVE_FTRUNCATE
* src/dd.c (main): Remove unnecessary cpp directives.
Gnulib guarantees that ftruncate is usable.
2009-08-04 20:06:03 +02:00
Jim Meyering
eae535e1a3 cp -pP (and e.g., -a): preserve time stamps on symlinks, too
* src/copy.c (utimensat_if_possible): New function.
(copy_internal): Remove variable, "preserve_metadata".
Replace with "dest_is_symlink".  That covers all cases but one:
the one in which cp --link has created hard links to non-directories.
In that case, there is no need to update attributes of the links.
Use utimensat_if_possible, to preserve timestamps of symlinks.
* NEWS (New features): Mention this.
* tests/Makefile.am (TESTS): Add cp/preserve-slink-time.
* tests/cp/preserve-slink-time: New file.
* m4/jm-macros.m4 (coreutils_MACROS): Test for utimensat.
Reported in http://bugzilla.redhat.com/230866
2009-08-04 17:38:54 +02:00
Jim Meyering
28e3946ef0 tail: tweak indentation
* src/tail.c (tail_forever_inotify): Adjust indentation of continued line.
2009-07-30 17:45:53 +02:00
Pádraig Brady
c9871986eb tail: properly parse fractional seconds when monitoring a pid
* src/tail.c (tail_forever_inotify): The fractional
part of the delay was 1000 times too large.
* tests/tail-2/pid: Add a test to ensure the
timeout happens for this case.
2009-07-30 17:40:43 +02:00