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2013-11-29df: remove long-obsolescent --megabytes optionBernhard Voelker
This option has been undocumented for 12 years [1], and warned about for a year [2]. [1] commit FILEUTILS-4_1_4-23-gd177203 [2] commit v8.17-43-g453ce92 * src/df.c (MEGABYTES_OPTION): Remove. (long_options): Remove "megabytes" element. (main): In the option parsing loop, remove the MEGABYTES_OPTION case. * NEWS: Mention the change.
2013-11-28build: fix selinux.c build failure on 32 bitPádraig Brady
* src/selinux.c: Don't include the system "fts.h" as that disallows _FILE_OFFSET_BITS=64 which gnulib auto enables to support large files on 32 bit systems. Instead include our "xfts.h" which includes the less limited gnulib replacement, and also a checked version of xfts_open(). (restorecon): Use the checked xfts_open() rather than the standard fts_open(). Prompted by the continuous integration build failure at: http://hydra.nixos.org/build/6934169
2013-11-27build: avoid more selinux build failuresPádraig Brady
Handle both newer selinux libraries with mode_to_security_class(), and systems without selinux at all. We could easily adjust gnulib to provide the necessary stubs for use by this module, but it's more efficient to just stub out the module completely, when not using selinux. * src/selinux.h: Define stubs for the two module functions, when SELinux is not available. * src/selinux.c: Exclude all logic in preference for the stubs when selinux isn't used. Also when newer selinux libs are used, don't use our conflicting static version of mode_to_security_class(). m4/jm-macros.m4: Check for the system mode_to_security_class().
2013-11-27build: avoid build failure on non selinux systemsPádraig Brady
* src/selinux.c: This module introduced in commit v8.21-159-gd8e27ab doesn't need to include <selinux/flask.h>. That header file isn't catered for by gnulib, but is not needed as we're not explicitly referencing any class IDs. Prompted by the continuous integration build failure at: http://hydra.nixos.org/build/6920020
2013-11-27selinux: adjust utils to run restorecon with -ZPádraig Brady
cp, mv, install, mkdir, mkfifo, mknod are adjusted so that: -Z no longer accepts an argument. -Z or --context without an argument do not warn without SELinux. --context with an argument will warn without SELinux. * src/local.mk: Reference the new selinux module where required. * src/system.h: Make the argument to --context optional. * src/mkdir.c: Likewise. Also handle the SMACK case for --context. Note we currently silently ignore -Z with SMACK. * src/mkfifo.c: Likewise. * src/mknod.c: Likewise. * src/install.c: Likewise. Note install(1) by default already set the context for target files to their system default, albeit with an older method. Use the -Z option to select between the old and new context restoration behavior, and document the differences and details for how context restoration is done in new and old methods, with a view disabling the old method entirely in future. * src/cp.c: Make the argument to --context optional. Note -Z implies --no-preserve=context. I.E. -Z overrides that aspect of -a no matter what order specified. (struct cp_options): Document the context handling options. (main): Check/adjust option combinations after all options are processed, to both simplify processing and to make handling independent of order of options on the command line. Also improve the diagnostics from a failed call to setfscreatecon(). (set_process_security_ctx): A new function, refactored to set the default context from the source file, or with the type adjusted as per the system default for the destination path. (set_file_security_ctx): A new function refactored to set the security context of an existing file, either based on the process context or the default system context for a path. (copy_internal): Use the refactored functions to simplify error handling and consistently fail or warn as needed. (copy_reg): Likewise. (copy_internal): With --preserve=context, also copy context from non regular files. Note for directories this may impact the copying of subsequent files to that directory? (copy_attr): If we're handling SELinux explicitly, then exclude to avoid the redudant copy with --preserve=context, and the problematic copy with -Z. Note SELinux attribute exclusion also now honors cp -a --no-preserve=context. Note there was a very small window over 10 years ago, where attr_copy_file was available, while attr_copy_check_permissions was not, so we don't bother adding an explicit m4 check for the latter function. * src/mv.c: Support --context, but don't allow specifying an argument. * src/chcon.c: Adjust a comment to be specific to SELinux. * src/runcon.c: Likewise. * src/copy.c: Honor the context settings to "restorecon" as appropriate. * src/copy.h: Add a new setting to select "restorecon" functionality. * tests/mkdir/selinux.sh: s/-Z/--context=/ * tests/cp/cp-a-selinux.sh: Augment this test with cases testing basic -Z functionality, and also test the various invalid option combinations and option precedence. * tests/mkdir/restorecon.sh: Add a new test for the more involved mkdir -Z handling, since the directory changing and non existent directories need to be specially handled. Also check the similar but simpler handling of -Z by mk{nod,fifo}. * tests/local.mk: Reference the new test. * doc/coreutils.texi (cp invocation): Update as per interface changes. (mv invocation): Likewise. (install invocation): Likewise. (mkfifo invocation): Likewise. (mknod invocation): Likewise. (mkdir invocation): Likewise. * NEWS: Mention the new feature and change in behavior.
2013-11-27selinux: a new module implementing "restorecon" functionalityDaniel J Walsh
* src/selinux.c: A new module implementing "restorecon" functionality. There are two main functions to adjust the type of the referenced file system item. defaultcon() will setup the process context so that new items will have the required context without races. This is the preferred method. For existing files, the equivalent restorecon() is available which has two modes. With the "local" parameter set to false, restorecon() will adjust the type according to the system configuration for that file, and set to true will update the context as per the context for the current process (disregarding type). * src/selinux.h: Likewise. * po/POTFILES.in: Reference the new module.
2013-11-27shred: provide --remove methods to avoid excessive syncingPádraig Brady
A sync operation is very often expensive. For illustration I timed the following python script which indicated that each ext4 dir sync was taking about 2ms and 12ms, on an SSD and traditional disk respectively. import os d=os.open(".", os.O_DIRECTORY|os.O_RDONLY) for i in range(1000): os.fdatasync(d) So syncing for each character for each file can result in significant delays. Often this overhead is redundant, as only the data is sensitive and not the file name. Even if the names are sensitive, your file system may employ synchronous metadata updates, which also makes explicit syncing redundant. * tests/misc/shred-remove.sh: Ensure all the new parameters actually unlink the file. * doc/coreutils.texi (shred invocation): Describe the new parameters to the --remove option. * src/shred.c (Usage): Likewise. (main): Parse the new options. (wipename): Inspect the new enum to see which of the now optional tasks to perform. * NEWS: Mention the new feature. * THANKS.in: Add reporter Joseph D. Wagner
2013-11-27tail: improve inotify handling of symlinksPádraig Brady
Previous behavior failed to read contents of a (re)appearing file, when symlinked by tail's watched file. Also we now diagnose other edge cases when running in inotify mode, where an initially missing or regular file changes to a symlink. * src/tail.c (main): If any arg is a symlink, use polling mode. (recheck): Diagnose the edge case where a symlink appears during inotify processing. * tests/tail-2/symlink.sh: Test the fix. Mention the edge cases. * tests/local.mk: Reference the new test. * NEWS: Mention the fix. Reported by: Ondrej Oprala
2013-11-27df: add --output=file to directly output specified argumentsPádraig Brady
* src/df.c (usage): Document the new 'file' --output field. (get_dev): Add a new parameter to pass the specified argument from the command line through. Use '-' if a command line parameter is not being used. * doc/coreutils.texi (df invocation): Describe the new 'file' field. * tests/df/df-output.sh: Adjust all fields test, and add a specific test for --output=file. * NEWS: Mention the new feature.
2013-11-27timeout: avoid unlikely issues with --kill-afterPádraig Brady
* src/timeout.c (cleanup): When calling settimeout() from this signal handler, ensure we don't call out to error() or gettext(), which are not async-signal-safe. Also reset the errno which may be cleared by settimeout().
2013-11-27sort: avoid issues when issuing diagnostics from child processesPádraig Brady
* src/sort.c: (async_safe_die): A new limited version of error(), that outputs fixed strings and unconverted errnos to stderr. This is safe to call in the limited context of a signal handler, or in this particular case, between the fork() and exec() of a multithreaded process. (move_fd_or_die): Use the async_safe_die() rather than error(). (maybe_create_temp): Likewise. (open_temp): Likewise. Fixes http://bugs.gnu.org/15970
2013-11-26doc: clarify the operation of ls -kPádraig Brady
* src/ls.c (usage): Mention -k only changes the display for disk usage (directory total, and ls -s), and imply that it can be overridden (by --block-size, and -h). * doc/coreutils.texi (block size): Mention that ls -k handling is different to other utilities. Addresses http://bugs.gnu.org/14525
2013-11-23dircolors: add a new entry to colorize 'lz4' filesJohn
* src/dircolors.hin: Add entry for the speed optimized 'lz4' compressor.
2013-11-21doc: enhance diagnostic when rm skips "." or ".." argumentsBernhard Voelker
The error diagnostic "rm: cannot remove directory: '.'" does not give the user a hint for the reason. Issue a clearer error message. * src/remove.c (rm_fts): Enhance the error diagnostic in the above case to emphasize that skipping is done deliberately. In the corresponding comment, mention that POSIX mandates this behavior. Likewise in the subsequent comment for skipping "/". * doc/coreutils.texi (rm invocation): In the paragraph describing the above behavior, mention that POSIX mandates it.
2013-11-17stty: add support for mark/space parityColin Leitner
This adds support for using a constant or "stick" parity bit. * src/stty.c (usage): Mention the new flag. * tests/misc/stty.sh: Adjust for the new flag. * NEWS: Mention the improvement. * docs/coreutils.texi (stty invocation): Mention the new flag.
2013-11-11base64: improve encoding I/O efficiencyPádraig Brady
Since the I/O overhead is significant to the relatively simple processing done by this utility, use fputs() rather than fputc() to output '\n'. Time to process a 100MiB file was measured to decrease from 0.417s to 0.383s, i.e. an 8% improvement. Related to these changes, is a processing improvement in gnulib, which increases throughput by 60% when processing full buffers, which improves processing of a 100MiB file with standard wrapped output, down to 0.256s. http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=commit;h=43fd1e7b Also increase the encoding buffer size from 3 to 30KiB. This was seen to give a further 8% improvement, taking processing time down to 0.235s in the wrapped output case. The decoding size buffer is not adjusted, due to the noted caveat with --ignore-garbage. * src/base64.c (BLOCKSIZE): Split into ENC_ and DEC_ variants, with the former increased from 3KiB to 30KiB. (wrap_write): Use the simpler fputc() rather than fputs() to output the '\n' character. Also check against EOF rather than < 0 for errors. (do_encode): Likewise. * NEWS: Mention the large increase in performance, which with the I/O improvements in coreutils and the processing improvement in gnulib, amount to about a 60% throughput increase.
2013-11-08shred: avoid data write pass with --size=0Pádraig Brady
* src/shred.c (dopass): Exit early to avoid redundant heap allocation, and more importantly avoiding a file sync when we're writting no data, as this can have side effects. Also with --verbose, this avoids printing of "pass status" which could be confusing as to whether data was actually written. * tests/misc/shred-passes.sh: Ensure the status for data passes are not written when not doing any data writes.
2013-11-08shred: increase I/O block size for periodic pattern casePádraig Brady
* src/shred.c (dopass): In the periodic pattern case increase the I/O block size from 12KiB to 60KiB (also a multiple of 3 and 4096). * NEWS: Adjust accordingly.
2013-11-08shred: fix direct I/O failures for last write to filePádraig Brady
Since direct I/O is now enabled with commit v8.21-139-gebaf961 we must handle the case where we write an odd size at the end of a file (with --exact), or we specify an odd --size that is larger than 64KiB, or in the very unlikely case of a device with an odd size. This issue was present since direct I/O support was first added in v5.3.0, but latent since v6.0. Theoretically this could have also been an issue after that on systems which didn't have alignment constraints, but did have size constraints for direct I/O. * src/shred.c (dopass): On the first pass for a file, always retry a write that fails with EINVAL, so we handle direct I/O failure at either the start or end of the file. Adjust the comment as the original case is out of date and implicitly handled by this more general fix. * tests/misc/shred-exact.sh: Add a test case. * NEWS: Add a "bug fix" entry for shred since there are two related issues now fixed.
2013-11-07cp: fix --link regarding the dereferencing of symbolic linksGian Piero Carrubba
* src/copy.c (create_hard_link): Add a bool 'dereference' parameter, and pass AT_SYMLINK_FOLLOW as 'flags' to linkat() when dereference is true. (should_dereference): Add new 'bool' function to determine if a file should be dereferenced or not. (copy_internal): Use the above new should_dereference() and remember its return value in a new local bool 'dereference' variable. Use that in all three calls to create_hard_link(). * src/cp.c (main): after parsing the options, if x.dereference is still DEFEF_UNDEFINED and the x.recursive is true, then only set x.dereference to DEREF_NEVER iff --link was not specified. * doc/coreutils.texi (cp invocation): Mention that cp(1) does not follow symbolic links in the source when --link is specified. Likewise in the description of the -R option when used together with that option. * tests/cp/same-file.sh: Adapt the expected results for the -fl, the -bl and the -bfl tests. * tests/cp/link-deref.sh: Add a new test. * tests/local.mk (all_tests): Reference the above new test. * NEWS (Changes in behavior): Mention the change. This fixes http://bugs.gnu.org/15173 Co-authored-by: Bernhard Voelker <mail@bernhard-voelker.de>
2013-11-06shred: write larger chunks when possiblePádraig Brady
* src/shred.c (dopass): When not needing to write periodic patterns, use a 64KiB block size to reduce the number of write system calls.
2013-11-05shred: enable direct I/O when possiblePádraig Brady
Commit v5.92-1057-g43d487b introduced a regression in coreutils 6.0 where it removed the page alignment of the buffer to write, thus disabling direct I/O. We want to use direct I/O when possible to avoid impacting the page cache at least, as we know we don't want to cache the data we're writing. * src/shred.c (dopass): Allocate the buffer on the heap, while using a more general calculation to allow to have the output size independent from the fillpattern() size constraint of a multiple of 3. Also we dispense with the union as it's no longer needed given we're aligning on a page boundary and thus don't need to explicitly handle uint32_t alignment.
2013-11-01md5sum, sha*sum: improve help for --check related optionsPádraig Brady
* src/md5sum.c (usage): s/three/four/ in the message pertaining to the --check related options. Also clarify that --strict is just significant for the formatting of the checksum lines. Also since we're changing both strings, move the --strict description in with the description of the other options and order alphabetically. * THANKS.in: Added reporter: Daniel Mach
2013-11-01maint: simplify printing of md5sum file namesPádraig Brady
* src/md5sum.c (main): Add a comment as to why we continue to escape names that do not have '\n' but do have '\\' chars. (print_filename): Use the predetermined boolean to decide whether to escape or not, so that in the common case we can output the file name directly, rather than inspecting each char. * tests/misc/md5sum.pl: Add case to show '\\' chars cause escaping. * tests/misc/sha1sum.pl: Likewise.
2013-10-15dircolors: add putty-256color terminal typeMike Frysinger
* src/dircolors.hin: Add putty-256color Reported-by: Thomas D. <whissi@whissi.de>, via http://bugs.gentoo.org/486786 Fixes http://bugs.gnu.org/15624
2013-10-11cp: correct error message for invalid arguments of '--no-preserve'Ondřej Vašík
* src/cp.c (decode_preserve_arg): Correct error message for invalid arguments of '--no-preserve'. Reported by M.Vadkerti in http://bugzilla.redhat.com/1018206 Fixes http://bugs.gnu.org/15588
2013-10-07mktemp: fix incorrect exit status from previous commitPádraig Brady
* src/mktemp.c (main): Use an exit() strategy consistent with the previous clauses dealing with optional error messages to ensure we exit with the correct status in all cases. Prompted by the continuous integration build failure at: http://hydra.nixos.org/build/6412979
2013-10-06mktemp: with --quiet, only suppress I/O errorsPádraig Brady
The reason for having a --quiet option is to suppress only some subset of possible errors. The most useful separation here is with usage/internal errors, and errors due to file creation etc. (i.e. I/O errors). * src/mktemp.c (main): Match the --help and info docs and only suppress the file/dir creation error messages. * tests/misc/mktemp.pl: Adjust accordingly.
2013-10-06mktemp: synchronize the -p option with docsPádraig Brady
* src/mktemp.c (usage): Synchronize the -p option description with the logic and info docs. I.E. that -p is just an alias of --tmpdir. Also for consistency treat --tmpdir='' the same with or without -t. I.E. always ignore the --tmpdir option if the param is empty. Fixes http://bugs.gnu.org/15425
2013-09-26rm: with -I, prompt before deleting a write protected fileSergio Durigan Junior
This regression was introduced in commit v6.7-71-g0928c24 * src/rm.c (main): Make the -I option behave like --interactive=once. * tests/rm/interactive-once.sh: Add cases for single and multiple files. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/9308
2013-09-22maint: remove unused parameters to parse_user_spec()Pádraig Brady
* src/chown.c (main): Since "name" parameters to parse_user_spec() are now optional, just pass NULL for those unused parameters. * src/chroot.c (main): Likewise.
2013-09-22id: support specifying the user by user IDPádraig Brady
* src/id.c (usage): Remove 'name' from the synopsis, implying that one can also specify by user ID. (main): Like chown(1), call parse_user_spec() to implement user name or ID lookup with appropriate precedence. * doc/coreutils.texi (id invocation): Mention that a user ID is supported and how '+' affects lookup order. * tests/misc/id-groups.sh: Remove test now subsumed into... * tests/misc/id-uid.sh: New test covering new interface. * tests/local.mk: Rename the test. * NEWS: Mention the new feature. Addresses http://bugs.gnu.org/15421
2013-09-21id: add -z, --zero optionBernhard Voelker
* src/group-list.h (print_group_list): Add a parameter for the delimiter of type char. * src/group-list.c (print_group_list): Likewise, and use it instead of a white space character to delimit the group entries. * src/groups.c (main): Pass white space character to print_group_list(). * src/id.c (longopts): Add array element for the new long option. (usage): Document the new option. While at it, fix the alignment of the descriptions to match that of HELP_OPTION_DESCRIPTION. (main): Define the bool flag opt_zero indicating the use of the new option. In the getopt_long loop, handle it. Output an error diagnostic in the case the --zero option has been specified together with the default format. In the case of -gG, pass either a NUL or a white space character to print_group_list() - depending on the above new flag. Likewise change the printing of the final newline character: output a NUL instead if the --zero option has been specified. * doc/coreutils.texi (id invocation): Document the new option. While at it, move the @exitstatus macro down after the macro @primaryAndSupplementaryGroups in order to be consistent with other texinfo documents. (groups invocation): Move @exitstatus down after the macro @primaryAndSupplementaryGroups here, too. * tests/misc/id-zero.sh: Add new test exercising the new option. * tests/local.mk (all_tests): Reference it. * NEWS (New features): Mention the new option. Fixes http://bugs.gnu.org/9987
2013-09-05ls: fix possible incorrect exit status when recursing directoriesFUJIWARA Katsunori
If there is an error reading a directory that was referenced through recursion, rather than directly on the command line, then exit with the "less serious" exit code, rather than the "serious" exit code reserved for command line arguments. This issue was introduced in commit v5.2.1-1908-gb58dea5 * src/ls.c (print_dir): Ensure that the command_line_arg param is false for directories being recursed into. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/15249
2013-09-01maint: update out of date confusing commentsPádraig Brady
* src/copy.c (copy_internal): Change mention of the removed --reply=no option, to the similar in this context --no-clobber. * src/sort.c: SI and IEC suffixes can now be mixed when --human-numeric.
2013-08-29df: fix "blocks" translation in headerPádraig Brady
* src/df.c (get_header): Get the translation of "blocks" here, rather than just marking the string for translation. Fixes http://bugs.gnu.org/15054
2013-08-10doc: clarify when seq endsBernhard Voelker
* doc/coreutils.texi (seq invocation): Add a sentence clarifying that seq terminates when LAST becomes smaller than the current number plus INCREMENT. * src/seq.c (usage): Likewise. Fixes http://bugs.gnu.org/15068
2013-08-05doc: more semicolons instead of periods in option descriptionsBenno Schulenberg
Also slightly rephrase some descriptions for extra clarity, and add more consistent indentation. * src/df.c (usage): Semicolon, no final period. * src/du.c (usage): Likewise, plus indentation and clarifying words. * src/ls.c (usage): Semicolon, rephrasings, added parentheses for clarity, indentation. * src/rm.c (usage): Semicolons. * src/tail.c (usage): Adjust -f description to prefer explanatory language instead of option syntax.
2013-08-03doc: clarify that uniq -d outputs a single entry per groupPádraig Brady
* src/uniq.c (usage): Clarify the -d option. Fixes http://bugs.gnu.org/14996
2013-08-02maint: update copyright year number ranges of numfmt sourcesBernhard Voelker
Run "make update-copyright". * src/numfmt.c: Update copyright year number range. This file has obviously been added to coreutils after and without the annual update. * tests/misc/numfmt.pl: Likewise.
2013-08-01doc: use semicolon instead of period in option descriptionsBenno Schulenberg
Also do not end option descriptions with a period, properly indent continuation lines, and make some tiny clarifications. * src/du.c (usage): Lowercase after semicolon. * src/ls.c (usage): Semicolons instead of periods, small rephrasing and two hyphens for clarity, proper indentation. * src/mktemp.c (usage): Semicolons and lowercase. * src/od.c (usage): Semicolons. * src/ptx.c (usage): Use the standard phrase, clarify default option. * src/setuidgid.c (usage): Properly indent continuation line. * src/split.c (usage): Semicolons, lowercase, no final period. * src/stat.c (usage): Semicolons, lowercase. * src/tail.c (usage): Proper indentation, one shorter rephrasing, semicolons, no final periods. * src/timeout.c (usage): Properly indent, semicolons, no final periods. Fixes http://bugs.gnu.org/14976
2013-07-28maint: avoid clang static analysis issues in csplitPádraig Brady
* src/csplit.c (find_lines): Assert that load_buffer() updates the global buffers, thus "b" will be non NULL, thus suppressing subsequent NULL pointer derefence warnings. (process_regexp): Avoid a redundant assignment of the "line" pointer. (process_line_count): Likewise. Also reduce the "line" pointer scope.
2013-07-27du: add --inodes optionBernhard Voelker
This new option can be used to find directories with a huge amount of files. The GNU find utility has the printf format "%h" which prints the number of entries in a directory, but this is non-cumulative and doesn't handle hard links. * src/du.c (struct duinfo): Add new member for counting inodes. (duinfo_init): Initialize inodes member with Zero. (duinfo_set): Set inodes counter to 1. (duinfo_add): Sum up the 2 given inodes counters. (opt_inodes): Add new boolean flag to remember if the --inodes option has been specified. (INODES_OPTION): Add new enum value to be used ... (long_options): ... here. (usage): Add description of the new option. (print_size): Pass inodes counter or size to print_only_size, depending on the inodes mode. (process_file): Adapt threshold handling: with --inodes, print or elide the entries according to the struct member inodes. (main): Add a case for accepting the new INODES_OPTION. Print a warning diagnostic when --inodes is used together with the option --apparent-size or -b. Reset the output_block_size to 1 ... and thus ignoring the options -m and -k. * tests/du/inodes.sh: Add a new test. * tests/local.mk (all_tests): Mention it. * doc/coreutils.texi (du invocation): Document the new option. * NEWS: Mention the new option.
2013-07-25mv: replace empty directories in cross file system moveKen Booth
src/copy.c (copy_internal): Use rmdir() rather than unlink() when the source is a directory, so that empty directories are replaced in the destination as per POSIX. * tests/mv/part-rename.sh: Augment with various combinations. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/14763
2013-07-22maint: use new gnulib function to free mount entries in duBernhard Voelker
* src/du.c (fill_mount_table): Use free_mount_entry() instead of freeing struct members manually.
2013-07-19rm: output number of arguments at the interactive promptRasmus Villemoes
Include the number of arguments which rm received in the "Remove all arguments?" prompt. This is useful in the, presumably, common case where the arguments were not provided by hand, but instead were the result of various shell expansions. A simple, if somewhat contrived, example (assuming rm is aliased to rm -I) could be: rm * .o where the prompt "Remove 120 arguments?" is more likely to make the user catch the problem. * src/rm.c (main): Include correctly pluralized n_files in the output message. Also remove the now redudant "all". * tests/rm/interactive-always.sh: Adjust to the new prompt. * tests/rm/interactive-once.sh: Likewise.
2013-07-19dd: make status=none suppress all diagnosticsPádraig Brady
* src/dd.c (STATUS_NONE): Simplify the enum so that it's more general than just suppressing transfer counts. Then test this in all locations where non fatal diagnostics are output. * tests/dd/misc.sh: Ensure the diagnostic about being unable to skip past the end of input is suppressed. * NEWS: Mention the change in behavior. Fixes http://bugs.gnu.org/14897
2013-07-12head: avoid redundant allocations when reading empty filesPádraig Brady
* src/head.c (elide_tail_lines_file): For seekable empty files, or seekable files where the current offset is after the end of the file, return immediately. Previously the short circuit code could not be reached due to logic error. Spotted by coverity.
2013-07-12maint: avoid a valgrind memory leak warning from pinkyPádraig Brady
Similarly to commit v8.21-84-g8d2da3f in src/uptime.c avoid a "definitely lost" error from valgrind. Note this only happens with pinky when compiled without optimization, in which case certain paths aren't eliminated casuing valgrind to trigger the message. Note also that coverity flags this "resource leak" too. * src/pinky.c (short_pinky): free utmp_buf for developer builds.
2013-07-11df: reduce memory usage when filtering mount entriesAnton Ovchinnikov
Avoid Valgrind reports of "definitely lost" items and while at it, free all discarded mount entries to minimize the amount of memory used. * src/df.c (filter_mount_list): Use the newly exported free_mount_entry() from gnulib to free all mount entries as they're discarded.