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2012-08-18sort: simpler fix for sort -u data-loss bug, and for a FMR bugPaul Eggert
This also fixes a free-memory-read (FMR) bug: when fillbuf's realloc of buf->buf frees the buffer into which saved_line.text points, the processing of that just-read longer line includes comparison against the saved line in freed memory. * src/sort.c (overlap): Remove. (fillbuf): Do not try to copy saved lines, as that is too risky in the presence of parallelism, reallocated buffers, etc. (sort): Invalidate any saved line before sorting a new batch.
2012-08-17sort: sort --unique (-u) could cause data lossJim Meyering
sort -u could omit one or more lines of expected output. This bug arose because sort recorded the most recently printed line via reference, and if you were unlucky, the storage for that line would be reused (overwritten) as additional input was read into memory. If you were doubly unlucky, the new value of the "saved" line would not only match the very next line, but if that next line were also the first in a series of identical, not-yet-printed lines, then the corrupted "saved" line value would result in the omission of all matching lines. * src/sort.c (saved_line): New static/global, renamed and moved from... (write_unique): ...here. Old name was "saved", which was too generic for its new role as file-scoped global. (fillbuf): With --unique, when we're about to read into a buffer that overlaps the saved "preceding" line (saved_line), copy the line's .text member to a realloc'd-as-needed temporary buffer and adjust the line's key-defining members if they're set. (overlap): New function. * tests/misc/sort: New tests. * NEWS (Bug fixes): Mention it. * THANKS.in: Update. Bug introduced via commit v8.5-89-g9face83. Reported by Rasmus Borup Hansen in http://thread.gmane.org/gmane.comp.gnu.coreutils.bugs/23173/focus=24647
2012-08-16tests: reverse args in Coreutils.pm-invoked diff, for consistencyJim Meyering
* tests/Coreutils.pm (_compare_files): Reverse diff arguments so that we invoke diff -c $expected $actual, which is consistent with how init.sh-using tests invoke "compare exp out".
2012-08-16maint: correct a stale comment in sort.cJim Meyering
* src/sort.c (fillbuf): Fix comment typo. x2nrealloc no longer doubles the size of its input buffer.
2012-08-16maint: fix comment grammar to placate make syntax-checkJim Meyering
* src/remove.c (rm_fts): s/can not/cannot/
2012-08-14rm: new option --dir (-d) to remove empty directoriesKrzysztof Goj
Add new option to rm (-d/--dir), which allows removal of empty directories, while still safely disallowing removal of non-empty ones. This improves compatibility with Mac OS X and BSD systems, which honor the -d option. * src/remove.c (rm_fts): Remove empty directories when requested. * src/remove.h (rm_options) [remove_empty_directories]: New member. * src/rm.c (long_opts, usage, main): Update usage and option parsing. (rm_option_init): Initialize the new member. * src/mv.c (rm_option_init): Initialize the new member. * tests/rm/d-1: New test case - successfully delete empty dir. * tests/rm/d-2: New test case - refuse to delete nonempty dir. * tests/Makefile.am (TESTS): Add them.
2012-08-14df: fail when the mount list is required but cannot be readBernhard Voelker
* src/df.c (main): Add conditions to fail when the mount list cannot be read: this includes the cases when a file name argument is given and any of -a, -l, -t or -x is used. * doc/coreutils.texi: Document the additional error conditions. * tests/df/no-mtab-status: Add a new test. * tests/Makefile.am: Reference the new test. * NEWS: Mention the fix.
2012-08-12maint: post-release administriviaJim Meyering
* NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update.
2012-08-12version 8.18Jim Meyering
* NEWS: Record release date.
2012-08-08tests: fix validation of local file systemsPádraig Brady
* tests/init.cfg (require_mount_list_): A new function to ensure we can read the list of file systems. (require_local_dir_): Call the above function, as otherwise the check is invalid. * tests/df/total-unprocessed: Ensure df can read the list of mounted file systems so that --local can be honored.
2012-08-06build: update gnulib submodule to latestJim Meyering
2012-08-06tests: printf-surprise: avoid unwarranted failure on FreeBSD 9.0Jim Meyering
* tests/misc/printf-surprise: A VM size of 10,000KiB was too little in which to run "env printf ..." on FreeBSD 9.0-p3. Increase it to 15,000.
2012-08-05build: avoid sort link failure on Solaris 10Jim Meyering
* src/Makefile.am (sort_LDADD): Sort uses euidaccess, which may require whatever library configure deemed necessary to resolve the eaccess function, but no one told sort to link with that library. (sort_LDADD): Add $(LIB_EACCESS).
2012-08-04df: fix exit code and error messages with --totalBernhard Voelker
When the combination of the file system options with given files or devices does not lead to output, "df --total" would exit successfully although it should not. Examples: $ df --total --type=xfs / # when / is not an XFS file system $ df --total --local -t nfs DIR # nfs is remote per se ... $ df --total -t qwerty /dev/sdb5 # typo in file system type Furthermore, "df --total" would not print the error message "no file systems processed" when the file argument does not exist or is otherwise not accessible. Example: $ df --total __not_exist__ These 2 bugs are present since --total was added by commit v6.12-166-gea2887b. * src/df.c (get_dev): Do not set file_systems_processed to true when force_fsu is true, i.e. when the row for the "total" line is processed. (main): Don't print totals unless we've processed a file system. Also only print the "no FS processed" message if there was no preceding diagnostic. * tests/df/total-unprocessed: Add a new test. * tests/Makefile.am: Reference the new test. * NEWS: Mention the fix. Improved-by: Jim Meyering
2012-08-04truncate: don't leak a file descriptor with --ref=PIPEJim Meyering
* src/truncate.c (main): For a user who makes the mistake of using a non-seekable file as a reference for the desired length, truncate would open that file, attempt to seek to its end, but upon seek failure would neglect to close the file descriptor. Close the file descriptor even when lseek fails. In addition, ignore failure to close that reference FD, since as long as the lseek succeeds, a close failure doesn't matter. Coverity spotted the potential FD leak. Improved-by: Pádraig Brady.
2012-08-04tests: avoid FP ulimit failure with valgrind-wrapped toolsJim Meyering
* tests/init.cfg (require_ulimit_): Raise VM limit from 10MiB to 20MiB, to accommodate overhead of a valgrind-wrapped date program. Also declare this function's local variables "local".
2012-08-04split: plug nominal leaksJim Meyering
* src/split.c (lines_rr) [IF_LINT]: Plug a harmless leak. (main) [IF_LINT]: Free a usually-small (~70KB) buffer just before exit, mainly to take this off the radar of leak-detecting tools. Improved-by: Pádraig Brady.
2012-08-03tail: avoid rare error-path FD leakJim Meyering
* src/tail.c (tail_forever): Close FD to avoid leak after a failed fstat.
2012-07-27maint: refresh stale local gnulib patch filesJim Meyering
We carry local adjustments for a few gnulib modules via the patches in gl/. Nearly all of those patches had become stale due to evolution of the originals in gnulib. To refresh them, first make sure you have no local changes in gl/ or in the gnulib submodule, then run "make refresh-gnulib-patches".
2012-07-25tail: avoid misleading diagnostic upon fstat failureJim Meyering
* src/tail.c (check_fspec): Save fstat-induced errno *before* calling close_fd, not after. Otherwise, the close could well clobber the global errno, making tail print an invalid diagnostic. This could happen only with tail -f, and even then, only when a valid file descriptor were to provoke fstat failure.
2012-07-23tests: add a test for a previously fixed output format bug in joinPádraig Brady
Add a test and NEWS entry for a bug inadvertently fixed in a refactoring in commit v8.9-32-gd4db0cb * tests/misc/join (v2-format): Add a new test. * THANKS.in: Add the reporter. * NEWS: Mention the old bug. * cfg.mk (old_NEWS_hash): Update. Reported-by: Jean-Pierre Tosoni
2012-07-22doc: mention gethostid(3) in hostid(1)Pádraig Brady
* man/hostid.x: Add gethostid(3) to SEE ALSO section. Addresses http://bugs.gnu.org/12023
2012-07-22doc: mention uniq(1) in sort(1) man-page and vice versaErik Auerswald
* man/sort.x: Add SEE ALSO section with entry uniq(1). * man/uniq.x: Add sort(1) to SEE ALSO section.
2012-07-21maint: stzncpy: restrict pointer parametersJim Meyering
* src/system.h (stzncpy): Add "restrict" attribute to each pointer parameter and note in the comment that the buffers must not overlap.
2012-07-20maint: rm: remove two more unused static inline functionsJoachim Schmitz
* src/remove.c (cache_stat_ok, is_nondir_lstat): Remove unused functions.
2012-07-20maint: adjust exemption to track renamed test scriptJim Meyering
* cfg.mk (exclude_file_name_regexp--sc_file_system): Sync this exemption regexp to match renamed tests/df/df-P. This avoids a "make syntax-check" failure.
2012-07-20maint: rm: remove unused static-inlined functionsJoachim Schmitz
* src/remove.c (cache_statted, is_dir_lstat): Remove unused static-inlined functions. * THANKS.in: Remove my name from this list, now that (with this commit) it is included automatically. Copyright-paperwork-exempt: Yes
2012-07-18tests: fiemap-perf: avoid a false failure on ext2Andrew D Warshall
* tests/cp/fiemap-perf: Skip the test on ext2 file systems, as we do for ext3. Also skip the test if we can't create a 1TiB file, which might not be supported on certain file systems. Signed-off-by: Pádraig Brady <P@draigBrady.com>
2012-07-16maint: move two df tests from tests/misc to tests/dfPádraig Brady
* test/Makefile.am: Reference the moved tests.
2012-07-16df: don't output control characters in a mount point namePádraig Brady
It's awkward to read and problematic for scripts when control characters like '\n' are output. Note other fields are already handled with mbsalign, which converts non printable chars to the replacement char. A caveat to note with that, is the replacement char takes a place in the field and so possibly truncates the field if it was the widest field in the records. Note a more general replacement function, that handles all printable, or non white space characters, would require more sophisticated support for various encodings, and the complexity vs benefit was not deemed beneficial enough at present. Perhaps in future a more general replacement function could be shared between the various utilities. Note <space> is unaffected in any field, which could impact scripts processing the output. However any of the number fields at least could have spaces considering `LANG=fr_FR df -B\'1`, so it's probably best to leave spaces, which also allows scripts to handle mount points with spaces without change. * src/df.c (hide_problematic_chars): Replace control chars with '?'. * tests/df/problematic-chars: Add a new root only test. * tests/Makefile.am: Reference the new test. * NEWS: Mention the fix.
2012-07-15pinky,who: fix bug in latest changeJim Meyering
* src/system.h (stzncpy): New function. * src/pinky.c (print_entry): Use stzncpy, not stpncpy. The latter does not NUL-terminate. I assumed that strncpy was the only function with such a horrible API. Today I learned that stpncpy also may not NUL-terminate its result. The bugs were introduced in commit v8.17-48-gf79263d. * src/who.c (print_user): Likewise. Thanks to Erik Auerswald for spotting my error.
2012-07-15build: update gnulib submodule to latestJim Meyering
2012-07-15maint: remove unwarranted uses of strncpyJim Meyering
* src/pinky.c (print_entry): Remove unwarranted uses of strncpy. Instead, use stpcpy and stpncpy. * src/who.c (print_user): Likewise. * cfg.mk: Remove strncpy exemptions.
2012-07-15build: shred.c: avoid i686-specific gcc -Wstrict-overflow warningJim Meyering
* src/shred.c: Avoid gcc -Wstrict-overflow warning. Addresses http://bugs.gnu.org/11927
2012-07-13doc: clarify meaning of '-parodd' in stty helpBruno Haible
* src/stty.c (usage): Disambiguate explanation of -parodd. * THANKS.in: Add reporter. Reported by Michael Stummvoll
2012-07-12doc: mention the improved sort memory allocationPádraig Brady
* NEWS: Mention the improvement.
2012-07-12doc: fix errors and warnings with Texinfo 5Stefano Lattarini
Or rather, with the development version 4.13.90, which will eventually become Texinfo 5.0. * doc/coreutils.texi: Use '@item' instead of '@itemx' in several places, as Texinfo 5 refuses to process an '@itemx' that is not preceded by an '@item'. Ensure that node extended names in menus and sectioning are consistent, and that ordering and presence of nodes in menus and in the actual text are consistent as well. Fixes http://bugs.gnu.org/11828
2012-07-11df: warn if soon-to-be-removed --megabyte option is usedBernhard Voelker
* src/df.c (MEGABYTES_OPTION): Add enum and mark it for removal in August 2013. (long_options): Use MEGABYTES_OPTION for --megabytes option. (main): Add a case for it and issue a deprecation warning if the long form is used. Document the short -m option to exist only for BSD compatibility.
2012-07-10sort: by default, do not exceed 3/4 of physical memoryPaul Eggert
* src/sort.c (default_sort_size): Do not exceed 3/4 of total memory. See Jeff Janes's bug report in <http://lists.gnu.org/archive/html/coreutils/2012-06/msg00018.html>.
2012-07-06tests: sort-merge-fdlimit: reduce the limit by onePádraig Brady
* tests/misc/sort-merge-fdlimit: As a consequence of commit v8.17-34-g59daf05, we can reduce the descriptor limit by one.
2012-07-05doc: document leap seconds betterPaul Eggert
* doc/coreutils.texi (touch invocation, Time conversion specifiers) (Options for date, Examples of date): Index "leap seconds" and improve their documentation a bit.
2012-07-05doc: fix spacingPaul Eggert
* doc/coreutils.texi: Use right amount of spacing after punctuation.
2012-07-04date: fails to diagnose invalid inputJim Meyering
date -d "$(printf '\xb0')" would print 00:00:00 with today's date rather than diagnosing the invalid input. Now it reports this: date: invalid date '\260' * gnulib: Update submodule to latest for fixed parse-datetime.y. * tests/misc/date [invalid-high-bit-set]: New test. * NEWS (Bug fixes): Mention it. * bootstrap, tests/init.sh: Also update to latest. Reported by Peter Evans in http://bugs.gnu.org/11843
2012-07-03maint: add syntax-check rule to help avoid misuse of EXIT_FAILUREJim Meyering
* cfg.mk (sc_some_programs_must_avoid_exit_failure): New rule, to help us avoid using EXIT_FAILURE in programs like sort, ls, nohup, timeout, env, etc. that use different exit codes in many cases.
2012-07-03maint: fix minor bugs in helper program, setuidgidJim Meyering
* src/setuidgid.c (main): Fix two error-before-usage calls not to exit. Exit with status SETUIDGID_FAILURE (not EXIT_FAILURE) consistently.
2012-07-02sort: fix exit-status typoPaul Eggert
* src/sort.c (stream_open): EXIT_FAILURE -> SORT_FAILURE. Suggested by Pádraig Brady in <http://bugs.gnu.org/11816#34>.
2012-07-02sort: simplify -o handling to avoid fdopen, assertPaul Eggert
* src/sort.c (outfd): Remove. All uses replaced by STDOUT_FILENO. (stream_open): When writing, use stdout rather than fdopen. (move_fd_or_die): Renamed from dup2_or_die, with the added functionality of closing its first argument. All uses changed. (avoid_trashing_input): Special case for !outfile no longer needed. (check_output): Arrange for standard output to go to the file, rather than storing the fd in outfd.
2012-07-02sort: avoid redundant processing with inaccessible inputs or outputPádraig Brady
* src/sort.c (check_inputs): A new function to verify all inputs are accessible before further processing. (check_output): A new function to open or create a specified output file, before futher processing. (stream_open): Adjust to truncating the previously opened output file rather than opening directly. (avoid_trashing_input): Optimize to stat the output file descriptor, rather than the file name. (main): Call the new functions to check accessibility of inputs and output, before processing starts. * tests/misc/sort: Adjust to the changed error message. * tests/misc/sort-merge-fdlimit: Account for the earlier opened file descriptor of the specified output file. * tests/misc/sort-exit-early: A new test to exercise the improvements. * tests/Makefile.am: Reference the new test. * NEWS: Mention the improvement. Suggested-by: Bernhard Voelker
2012-07-02maint: sc_prohibit_fail_0: update a stale commentPádraig Brady
* cfg.mk (sc_prohibit_fail_0): Following on from commit v8.0-79-g71c2f88, update the comment to match.
2012-07-02maint: avoid a -Wunsed-but-set warning on some systemsPádraig Brady
* src/stty.c (main): Mark speed_was_set as possibly unused, as is the case when CIBAUD is undefined (on ppc64 GNU/Linux for example). Reported-by: Stefano Lattarini