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2014-03-18stat: port birthtime to Solaris 11Paul Eggert
Problem reported by Rich Burridge. * src/stat.c [HAVE_GETATTRAT]: Include <attr.h>, <sys/nvpair.h>. (print_statfs, print_stat, print_it): Pass fd, too, for the benefit of get_birthtime. All uses changed. (get_birthtime): New function, for porting to Solaris 11. (print_stat): Use it. * configure.ac (getattrat, LIB_NVPAIR): New checks. * src/local.mk (src_stat_LDADD): Add $(LIB_NVPAIR).
2014-03-13ln: with -sr, don't segfault for a TARGET of ''Jim Meyering
Prior to this change, "ln -sr '' F" would segfault, attempting to read path2[1] in relpath.c's path_common_prefix function. This problem arises whenever canonicalize_filename_mode returns NULL. * src/ln.c (convert_abs_rel): Call relpath only when both canonicalize_filename_mode calls return non-NULL. * tests/ln/relative.sh: Add a test to trigger this failure. * THANKS.in: List reporter's name/address. * NEWS (Bug fixes): Mention it. Reported by Erik Bernstein in 739752@bugs.debian.org. Fixes http://bugs.gnu.org/17010.
2014-03-13chroot: improve --userspec and --groups look-upPádraig Brady
- Support arbitrary numbers in --groups, consistent with what is already done for --userspec - Avoid look-ups entirely for --groups items with a leading '+' - Support names that are actually numbers in --groups - Ignore an empty --groups="" option for consistency with --userspec - Look up both inside and outside the chroot with inside taking precedence. The look-up outside may load required libraries to complete the look-up inside the chroot. This can happen for example with a 32 bit chroot on a 64 bit system, where the 32 bit NSS plugins within the chroot fail to load. * src/chroot.c (parse_additional_groups): A new function refactored from set_addition_groups(), to just do the parsing. The actual setgroups() call is separated out for calling from the chroot later. (main): Call parse_user_spec() and parse_additional_groups() both outside and inside the chroot for the reasons outlined above. * tests/misc/chroot-credentials.sh: Ensure arbitrary numeric IDs can be specified without causing look-up errors. * NEWS: Mention the improvements. * THANKS.in: Add Norihiro Kamae who initially reported the issue with a proposed patch. Also thanks to Dmitry V. Levin for his diagnosis and sample patch.
2014-03-03doc: improve df --human and --si, help and man pagePádraig Brady
* src/df.c (usage): Adjust the --human and --si descriptions to not depend on each other. Also include an example that is illustrative of the rounding, suffix, width, and localized fractions. * src/system.h (emit_size_note). Adjust so that it's obvious the description is pertaining to the input SIZE argument, and not to any sizes that might be output by df for example. Fixes http://bugs.gnu.org/16922
2014-02-27cp: copy files by inode only if that facility is availablePaul Eggert
* src/copy.c (copy_dir): Use the new SAVEDIR_SORT_FASTREAD, not SAVEDIR_SORT_INODE. Problem reported by Bernhard Voelker in: http://lists.gnu.org/archive/html/coreutils/2014-02/msg00037.html
2014-02-26cp: copy files by inodePaul Eggert
Problem reported by Bernhard Voelker in: http://lists.gnu.org/archive/html/coreutils/2014-02/msg00034.html * src/copy.c (copy_dir): Adjust to recent gnulib change.
2014-02-26shuf: convert error diagnostic to lowercaseBernhard Voelker
* src/shuf.c (main): s/No/no/, introduced by commit v8.22-25-g9f60f37. * NEWS: Also adjust the NEWS for that recent commit to make it clear this was new bug rather than a regression. Prompted by the syntax-check rule sc_error_message_uppercase
2014-02-23shuf: with -r, don't dump core if the input is emptyPaul Eggert
Problem reported by valiant xiao in <http://bugs.gnu.org/16855>. * NEWS: Document this. * src/shuf.c (main): With -r, report an error if the input is empty. * tests/misc/shuf.sh: Test for the bug.
2014-02-10cp: with --link always use linkat() if availablePádraig Brady
* src/copy.c (copy_reg): If linkat() is available it doesn't matter about the gnulib emulation provided, and thus the LINK_FOLLOWS_SYMLINKS should not have significance here. This was noticed on FreeBSD and the consequence is that cp --link will create hardlinks to symlinks there, rather than emulating with symlinks to symlinks. * tests/cp/link-deref.sh: Adjust the checks to cater for all cases where hardlinks to symlinks are supported.
2014-02-09head,tail: consistently diagnose write errorsPádraig Brady
If we can't output more data, we should immediately diagnose the issue and exit rather than consuming all of input (in some cases). * src/tail.c (xwrite_stdout): Also diagnose the case where only some data is written. Also clearerr() to avoid the redundant less specific error from atexit (close_stdout); * src/head.c (xwrite_stdout): Copy this new function from tail, and use it to write all output. * tests/misc/head-write-error.sh: A new test to ensure we exit immediately on write error. * tests/local.mk: Reference the new test.
2014-02-09head: fix --lines=-0 outputting nothing if no newline at EOFАлексей Шилин
* src/head.c (elide_tail_lines_pipe): Just output all input in this case to avoid the issue and also avoid redundant '\n' processing. (elide_tail_lines_seekable): Likewise. * tests/misc/head-elide-tail.pl: Add tests for no '\n' at EOF. * NEWS: Mention the fix. Fixes http://bugs.gnu.org/16329
2014-02-09dircolors: add a new entry to colorize 'm4a' filesJohn
* src/dircolors.hin: Add entry for mpeg4 audio files. Fixes http://bugs.gnu.org/16700
2014-02-09od: add an --endian option to control byte swappingNiels Möller
* src/od.c (main): Handle the new --endian option, taking "little" and "big" as parameters. (usage): Describe the new option. (PRINT_FIELDS): Adjust to swap bytes if required. * tests/misc/od-endian.sh: A new test to verify the byte swapping operations for hex (ints) and floats for all sizes between 1 and 16 inclusive. * test/local.mk: Reference the new test. * doc/coreutils.texi (od invocation): Describe the new option. * NEWS: Mention the new feature.
2014-01-29stat,tail: improve support for HFS+ and HFSXPádraig Brady
* src/stat.c (human_fstype): Add new file system ID definitions. * NEWS: Mention the improvement. Fixes http://bugs.gnu.org/16336
2014-01-17doc: clarify SMACK related --help and documentationChengwei Yang
* src/ls.c: Remove all mention of SELinux since ls should treat all security context labels equally. * doc/coreutils.texi (ls invocation): Likewise. (id invocation): Clarify that -Z outputs the context inherited by the process, rather than one specific to a user. Note for SMACK this can be set instead by the SMACK64EXEC label, in the unusual case where this is set on the id executable. * src/id.c (usage): Likewise. * src/mkdir.c (usage): Clarify that -Z is specific to SELinux, while --context=CTX is also supported for SMACK. * src/mkfifo.c (usage): Likewise. * src/mknod.c (usage): Likewise.
2014-01-17ln: fix replacing symbolic links whose targets can't existPádraig Brady
* src/ln.c (errno_nonexisting): A new function to determine if the errno implies that a file doesn't or can't (currently) exist. (target_directory_operand): Use the new function to expand the set of errors we handle. * tests/ln/sf-1.sh: Add test cases for the newly handled errors. * THANKS.in: Mention the reporter. * NEWS: Mention the bug fix.
2014-01-13copy: fix a segfault in SELinux context copying codeNicolas Iooss
* src/selinux.c (restorecon_private): On ArchLinux the `fakeroot cp -a file1 file2` command segfaulted due to getfscreatecon() returning a NULL context. So map this to the sometimes ignored ENODATA error, rather than crashing. * tests/cp/no-ctx.sh: Add a new test case. * tests/local.mk: Reference the new test. * NEWS: Mention the fix. Fixes http://bugs.gnu.org/16335
2014-01-13copy: fix SELinux context preservation for existing directoriesPádraig Brady
* src/copy.c (copy_internal): Use the global process context to set the context of existing directories before they're populated. This is more consistent with the new directory case, and fixes a bug for existing directories where we erroneously set the context to the last copied descendent, rather than to that of the source directory itself. * tests/cp/cp-a-selinux.sh: Add a test for this case. * NEWS: Mention the fix. * THANKS.in: Add reporter Michal Trunecka.
2014-01-02maint: fix copyright holder and year in selinux sourcesBernhard Voelker
* src/selinux.c: As the copyright is assigned to the FSF for all of coreutils, replace the copyright holder from "Red Hat, Inc." to "Free Software Foundation, Inc.". Prompted by a warning of 'make update-copyright'. Also update the copyright year.
2014-01-02maint: update all copyright year number rangesBernhard Voelker
Run "make update-copyright", but then also run this, perl -pi -e 's/2\d\d\d-//' tests/sample-test to make that one script use the single most recent year number.
2013-12-13stat,tail: improve support for hostfs and smackfsPádraig Brady
hostfs is provided by the Linux UML subsystem. smackfs is provided by the Linux Smack security module. * src/stat.c (human_fstype): Add new file system ID definitions. * NEWS: Mention the improvement, and adjust for the fact that SNFS is a remote file system.
2013-12-09tail: use consistent diagnostics with and without inotifyPádraig Brady
* src/tail.c: With inotify, when a file is initially absent, we fstat(-1) for that file spec, thus recording an errnum of EBADF, which caused the "has become accessible" diagnostic to be issued, when the file first appears. Instead we avoid the fstat(-1) and thus emit the more natural and consistent "has appeared" diagnostic. * tests/tail-2/retry.sh: Use the new diagnostic which also causes this test to pass on systems without inotify.
2013-12-06shuf: --repeat, not --repetitions; default --head-count is infinityPaul Eggert
Original problem reported by Philipp Thomas in <http://bugs.gnu.org/16061>. * NEWS: shuf --repeat, not shuf --repetitions. * doc/coreutils.texi (shuf invocation): * src/shuf.c (usage, long_opts, main): * tests/misc/shuf.sh: Likewise. Also, the default head-count is infinity.
2013-12-05selinux: fix --context=CTX for cp and diagnose defaultcon() errorsPádraig Brady
* src/selinux.h (ignorable_ctx_err): A new function used to determine if a warning should be given after a call to defaultcon() or restorecon(). * src/cp.c (main): Fix the setfscreatecon() call to use the argument passed by the user. * src/mkdir.c (make_ancestor): Show all but "ignoreable" errors from defaultcon() and restorecon(). * tests/misc/selinux.sh: Add a test run as root in selinux enforcing mode, to ensure cp --context=invalid is honored and fails immediately.
2013-12-04md5sum, sha*sum: use libcrypto where availablePádraig Brady
libcrypto is generally available and has well optimized crypto hash routines particular to various systems. For example, testing sha1sum with openssl-1.0.0j on an i3-2310M, gives a performance boost of about 40%: $ time sha1sum.old --tag ~/test.iso SHA1 (/home/padraig/test.iso) = 3c27f7ed01965fd2b89e22128fd62dc51a3bef30 real 0m4.692s user 0m4.499s sys 0m0.162s $ time sha1sum.new --tag ~/test.iso SHA1 (/home/padraig/test.iso) = 3c27f7ed01965fd2b89e22128fd62dc51a3bef30 real 0m2.685s user 0m2.512s sys 0m0.170s * configure.ac: By default, enable use of libcrypto if available. * src/local.mk: Link with libcrypto. * NEWS: Mention the md5sum and sha*sum improvements.
2013-12-04df: handle bind mounts when processing device nodesPádraig Brady
* src/df.c (get_disk): Use the same heuristic used in get_point() to select the shortest file system mount point, in an attempt to show the base mounted file system. * NEWS: Mention the bug fix.
2013-12-04df: dereference symlinks to disk device nodesPádraig Brady
This is so the matching for the device is done on the canonical name of the disk node, rather than on the path of the symlink. In any case the user will generally want to use the symlink target. * src/df.c (get_disk): Canonicalize the passed file, before matching against the list of mounted file system devices. Note we pass the original symlink name to the "file" output field, as the symlink target is usually available through the "source" field. * tests/df/df-symlink.sh: Test the dereferencing operation. * tests/local.mk: Mention the new test. * NEWS: Mention the fix. Reported by Ondrej Oprala
2013-12-03maint: avoid '%s' quoting notation in diagnostic messagesBernhard Voelker
Add a new rule to ensure the use of quote() instead of '%s' or `%s' in format strings of diagnostics messages. * cfg.mk (sc_prohibit_quotes_notation): Add rule. * TODO: Remove the entry regarding the '%s' notation. * src/mkfifo.c (main): Remove the offending and in this case even duplicate quoting in the format string of the error diagnostic. * src/mknod.c (main): Likewise. * src/df.c (decode_output_arg): Change two invocations of error() according to the above new rule. * src/numfmt.c: Fix numerous wrong quote notations to fit the above new rule, mostly in internal debugging diagnostic messages.
2013-11-29build: fix potential factor build failure on arm and powerpcPádraig Brady
* src/longlong.h: Sync with the latest longlong.h from libgmp to: - avoid arm asm when being compiled for the thumb instruction [sub]set - avoid old powerpc assembly that is incompatible with newer GCC - add arm64 optimized count_trailing_zeros() - add sparc64 optimized add_ssaaaa() and umul_ppmm()
2013-11-29maint: remove various FIXME commentsBernhard Voelker
* src/extent-scan.c (extent_need_sync): Remove the FIXME comment about removing the work around. As discussed in [1], the needed FIEMAP fix never made it into the Linux kernel. * src/realpath.c (longopts): Remove the FIXME comment about deprecating the --strip option as it's a valid alias for --no-symlinks option. Also discussed in [1]. [1] http://lists.gnu.org/archive/html/coreutils/2013-11/msg00103.html
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>