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2014-10-07tests: split/b-chunk.sh: avoid spurious fail on non-LinuxJim Meyering
* tests/split/b-chunk.sh: Skip each file that does not exist. Some systems lack /proc/version or /sys/kernel/profiling
2014-10-08maint: avoid syntax-check failures in previous patchPádraig Brady
* tests/misc/od-j.sh: Non standard comparison order. * tests/split/b-chunk.sh: Confusing input file name. * tests/tail-2/tail-c.sh: Redundant require ulimit.
2014-10-07wc: don't miscount /sys and similar file systemsPaul Eggert
Fix similar problems in head, od, split, tac, and tail. Reported by George Shuklin in: http://bugs.gnu.org/18621 * NEWS: Document this. * src/head.c (elseek): Move up. (elide_tail_bytes_pipe, elide_tail_lines_pipe): New arg CURRENT_POS. All uses changed. (elide_tail_bytes_file, elide_tail_lines_file): New arg ST and remove arg SIZE. All uses changed. * src/head.c (elide_tail_bytes_file): * src/od.c (skip): Avoid optimization for /sys files, where st_size is bogus and st_size == st_blksize. Don't report error at EOF when not optimizing. * src/head.c, src/od.c, src/tail.c: Include "stat-size.h". * src/split.c (input_file_size): New function. (bytes_split, lines_chunk_split, bytes_chunk_extract): New arg INITIAL_READ. All uses changed. Use it to double-check st_size. * src/tac.c (tac_seekable): New arg FILE_POS. All uses changed. (copy_to_temp): Return size of temp file. All uses changed. * src/tac.c (tac_seekable): * src/tail.c (tail_bytes): * src/wc.c (wc): Don't trust st_size; double-check by reading. * src/wc.c (wc): New arg CURRENT_POS. All uses changed. * tests/local.mk (all_tests): Add tests/misc/wc-proc.sh, tests/misc/od-j.sh, tests/tail-2/tail-c.sh. * tests/misc/head-c.sh: * tests/misc/tac-2-nonseekable.sh: * tests/split/b-chunk.sh: Add tests for problems with /proc and /sys files. * tests/misc/od-j.sh, tests/misc/wc-proc.sh, tests/tail-2/tail-c.sh: New files.
2014-09-30dd: new status=progress level to print stats periodicallyFederico Simoncelli
* src/dd.c: Report the transfer progress every second when the new status=progress level is used. Adjust the handling and description of the status= option so that they're treated as mutually exclusive levels, rather than flags with implicit precedence. * doc/coreutils.texi (dd invocation): Document the new progress status level. Reference the new level in the description of SIGUSR1. * tests/dd/stats.sh: Add new test for status=progress. * tests/dd/misc.sh: Change so status=none only takes precedence if it's the last level specified. * NEWS: Mention the feature.
2014-09-30dd: use more robust SIGUSR1 handlingPádraig Brady
* src/dd.c (ifd_reopen): A new wrapper to ensure we don't exit upon receiving a SIGUSR1 in a blocking open() on a fifo for example. (iftruncate): Likewise for ftruncate(). (iread): Process signals also after a short read. (install_signal_handlers): Install SIGINFO/SIGUSR1 handler even if set to SIG_IGN, as this is what the parent can easily set from a shell script that can send SIGUSR1 without the possiblity of inadvertently killing the dd process. * doc/coreutils.texi (dd invocation): Improve the example to show robust usage wrt signal races and short reads. * tests/dd/stats.sh: A new test for various signal races. * tests/local.mk: Reference the new test. * NEWS: Mention the fix.
2014-09-24test: check for Fedora 20 sort key bugPaul Eggert
Problem reported by Göran Uddeborg in: http://bugs.gnu.org/18540 * tests/misc/sort.pl: New test 23.
2014-09-19cp: fix handling of -H with multiply specified source dirsPádraig Brady
Following on from commit v5.92-729-g130dd06, also avoid the erroneous directory hardlink warning with -H. * src/copy.c (copy_internal): Also handle the -H case for command line arguments. * tests/cp/duplicate-sources.sh: Augment the test case. * NEWS: Augment the news entry.
2014-09-19cp: issue correct warning and ignore duplicate source dirsPádraig Brady
* src/copy.c (copy_internal): Handle the case where we have the same destination directory as already encountered, which can only be due to the corresponding source directory being specified multiple times. * tests/cp/duplicate-sources.sh: Add a test for the new multiply specified directory case, and the existing multiply specified file case. * tests/local.mk: Reference the new test. * NEWS: Mention the bug fix.
2014-09-16tests: fix false du failure on newer XFSBernhard Voelker
On XFS, when creating the ~2G test file 'big' in a for-loop by appending 20M each time, the file ends up using ~4G - visible in 'st_blocks'. The unused space would be reclaimed later. This feature is called "speculative preallocation" which aims at avoiding fragmentation. According to the XFS FAQ [1], there are two particular aspects of XFS speculative preallocation that are triggering this: 1. "Applications that repeatedly trigger preallocation and reclaim cycles [after file close] can cause fragmentation. Therefore, this pattern is detected and causes the preallocation to persist beyond the lifecycle of the file descriptor." 2. "Preallocation sizes grow as files grow larger." [1] http://xfs.org/index.php/XFS_FAQ Avoid one of the above by only doing a single close (reclaim cycle). * tests/du/2g.sh: Similar to the fix for a dd test (see commit v8.22-65-g7c03fe2), avoid speculative preallocation by creating the 'big' file in one go instead of appending to it in the loop. Remove debugging statements as the output with 'set -x' is sufficient nowadays.
2014-09-11cat: allow copying empty files to themselvesPaul Eggert
Problem reported by Vincent Lefevre in: http://bugs.gnu.org/18449 * src/cat.c (main): Allow copying an empty file to itself. * tests/misc/cat-self.sh: New test. * tests/local.mk (all_tests): Add it.
2014-08-01tests: fix typo in tail-2/inotify-racePaul Eggert
Reported by Andreas Schwab in: http://bugs.gnu.org/18057 * tests/tail-2/inotify-race.sh (break_src): Use abs_top_srcdir, not abs_top_builddir.
2014-08-01chroot: perform chdir("/") again unless new --skip-chdir is specifiedBernhard Voelker
Since commit v8.22-94-g99960ee, chroot(1) skips the chroot(2) syscall for "/" arguments (and synonyms). The problem is that it also skips the following chdir("/") call in that case. The latter breaks existing scripts which expect "/" to be the working directory inside the chroot. While the first part of the change - i.e., skipping chroot("/") - is okay for consistency with systems where it might succeed for a non-root user, the second part might be malicious, e.g. cd /home/user && chroot '/' bin/foo In the "best" case, chroot(1) could not execute 'bin/foo' with ENOENT, but in the worst case, chroot(1) would execute '/home/user/bin/foo' in the case that exists - instead of '/bin/foo'. Revert that second part of the patch, i.e., perform the chdir("/) in the common case again - unless the new --skip-chdir option is specified. Restrict this new option to the case of "/" arguments. * src/chroot.c (SKIP_CHDIR): Add enum. (long_opts): Add entry for the new --skip-chdir option. (usage): Add --skip-chdir option, and while at it, move the other to options into alphabetical order. (main): Accept the above new option, allowing it only in the case when NEWROOT is the old "/". Move down the chdir() call after the if-clause to ensure it is run in any case - unless --skip-chdir is specified. Add a 'newroot' variable for the new root directory as it is used in a couple of places now. * tests/misc/chroot-fail.sh: Invert the last tests which check the working directory of the execvp()ed program when a "/"-like argument was passed: now expect it to be "/" - unless --skip-chdir is given. * doc/coreutils.texi (chroot invocation): Document the new option. Document that chroot(1) usually calls chdir("/") unless the new --skip-chdir option is specified. Sort options. * NEWS (Changes in behavior): Mention the fix. (New features): Mention the new option. * init.cfg (nonroot_has_perm_): Add chroot's new --skip-chdir option. * tests/cp/preserve-gid.sh (t1): Likewise. * tests/cp/special-bits.sh: Likewise. * tests/id/setgid.sh: Likewise. * tests/misc/truncate-owned-by-other.sh: Likewise. * tests/mv/sticky-to-xpart.sh: Likewise. * tests/rm/fail-2eperm.sh: Likewise. * tests/rm/no-give-up.sh: Likewise. * tests/touch/now-owned-by-other.sh: Likewise. Reported by Andreas Schwab in http://bugs.gnu.org/18062
2014-07-18tests: fix false failure with spaces in the test directoryPádraig Brady
* tests/misc/env.sh: Skip if we can't execute the generated shebang, which would be the case if there are spaces in the directory hierarchy. This is triggered by `make distcheck`
2014-07-18tests: fix false failure in cp --preserve=context testPádraig Brady
With libselinux-2.2.1-6.fc20.x86_64, kernel-3.12.6-300.fc20.x86_64 `cp --preserve=context src dst` was seen to succeed when src and dst where on the same fixed context file system, as lsetfilecon() returned success in this case when the context wasn't being changed. * tests/cp/cp-a-selinux.sh: Copy from a different file system to most likely have a different context that will test context setting logic correctly.
2014-07-14tests: fix portabilitiy issue in new od-endian testPádraig Brady
* tests/misc/od-endian.sh: '\n' is not generally supported in the replacement, so use the more portable "\\$NL".
2014-07-14tests: fix portability issue in new dd/ascii testPádraig Brady
* tests/dd/ascii.sh: Quote so that '\\' is passed to printf rather than a single '\', as that's not portable. bash, dash, zsh and external solaris printf were seen to support printf '\%03o' 1 2 while ksh, freebsh shell and external GNU printf need the more portable printf '\\%03o' 1 2 Note we don't use env here to call the coreutils printf implementation, as there are many printf calls, so relying on portable shell implementations will be faster.
2014-07-14tests: avoid hang when files created with wrong permissionsPádraig Brady
* tests/split/b-chunk.sh: Never show the rm prompt which would hang the test suite. This was seen when split erroneously created files with no persmissions, which was triggered by this compiler bug in clang 3.4: http://llvm.org/bugs/show_bug.cgi?id=18346
2014-07-13build: support building all tools in a single binaryAlex Deymo
Add the --enable-single-binary option to the configure file. When enabled, this option builds a single binary file containing the selected tools. Which tool gets executed depends on the value of argv[0] which can be set implicitly through symlinks to the single program. This setup reduces significantly the size of a complete coreutils install, since code from lib/libcoreutils.a is not duplicated in every one of the more than 100 binaries. Runtime overhead is increased due to more dynamic libraries being loaded, and extra initialization being performed for all utils. Also initially a larger binary is loaded from storage, though this is usually alleviated due to caching and lazy mmaping of unused blocks, and in fact the single binary should have better caching characteristics. Comparing the size of the individual versus single binary on x86_64: $ cd src $ size coreutils $ size -t $(../build-aux/gen-lists-of-programs.sh --list-progs | grep -Ev '(coreutils|libstdbuf)') | tail -n1 text data bss dec hex filename 1097416 5388 88432 1191236 122d44 src/coreutils 4901010 124964 163768 5189742 4f306e (TOTALS) Storage requirements are reduced similarly: $ cd src $ du -h coreutils $ du -ch $(../build-aux/gen-lists-of-programs.sh --list-progs | grep -Ev '(coreutils|libstdbuf)') | tail -n1 1.2M coreutils 5.3M total When installing, the makefile will create either symlinks or shebangs based on the --enable-single-binary setting, for each configured tool. In this way, all the tools are still callable individually, but they are all implemented by the same "coreutils" binary installed on the same directory. * .gitignore: Add new generated files. * Makefile.am: New rules to generate build-aux/gen-single-binary.sh and install symlinks. * NEWS: Mention the new feature. * README: Add "coreutils" to the list of utils. * bootstrap.conf: Regenerate src/single-binary.mk * build-aux/gen-lists-of-programs.sh: New --list-progs option. * build-aux/gen-single-binary.sh: Regenerate * configure.ac: New --enable-single-binary option and other variables. Disallow --enable-single-binary=symlinks with --program-prefix et. al. * man/coreutils.x: Manpage hook. * man/local.mk: Add manpage hook and fix dependencies. * src/coreutils.c: Multicall implementation. * src/local.mk: New rules for the single binary option. * tests/local.mk: Add $single_binary_progs to support require_built_() from init.cfg * tests/misc/env.sh: Avoid the use of symlink to echo. * tests/misc/help-version.sh: Add exception for coreutils. * tests/install/basic-1.sh: Really avoid using ginstall strip functionality if there is an issue with the independent strip command. * src/kill.c: Changes to call exit() in main. * src/readlink.c: Likewise. * src/shuf.c: Likewise. * src/timeout.c: Likewise. * src/truncate.c: Likewise.
2014-07-04maint: simplify parsing df's output in shell scriptsBernhard Voelker
Avoid complicated and error-prone parsing of df's output via sed(1), cut(1), etc., and instead use df's more modern --output option. * src/ioblksize.h (in a comment): Simplify the extraction of the device name of the mounted file system from df's output. * tests/dd/skip-seek-past-dev.sh: Likewise. * tests/du/2g.sh: Likewise for the 'avail' column here. Also avoid the deprecated use of "tail -NUM". * tests/misc/stat-mount.sh: While at it, remove the determination of the mount point of "." via df(1) plus sed(1) as it is unused since commit v8.5-159-gf57cb37 anyway. Instead, improve this test by verifying that the output of "stat -c%m ." at least starts with a slash '/'.
2014-07-02pwd: revert default mode back to -PPádraig Brady
Revert commit v8.22-131-g3e89d5b as even though POSIX states that the default mode should be -L, common practice for stand-alone pwd implementations is to default to -P. * src/pwd.c (usage): Retain mention of the default mode of operation. Suggested by Bob Proulx
2014-07-02tests: avoid false failure with spaces in mount point pathsPádraig Brady
* tests/ls/readdir-mountpoint-inode.sh: Quote appropriately to process mount points with spaces in the path. Previously items like these would usually be skipped, though if the path also contained a '-' for example, that would stat stdin, thus producing a wrong inode and a false failure. Fixes http://bugs.gnu.org/17863
2014-07-02tests: avoid errors on systems without getmntentPádraig Brady
* tests/df/no-mtab-status.sh: Skip if getmntent() not available. * tests/df/skip-duplicates.sh: Likewise. Fixes http://bugs.gnu.org/17863
2014-07-02tests: use "env builtin" in place of "$abs_top_builddir/src/builtin"Jim Meyering
This works for any program that might also be a shell built-in. It is more concise. In addition, it makes output more reproducible: some diagnostics include argv[0], which will now be just the program name, rather than the full absolute name of the executable. * tests/misc/sort-compress.sh: Use env kill, rather than absolute name. * tests/install/trap.sh: Likewise. * tests/misc/timeout.sh: Likewise. * tests/touch/no-dereference.sh: Do the same for two uses of "test". * tests/touch/no-create-missing.sh: Likewise.
2014-07-01tests: adapt tests to change in pwd's defaultJim Meyering
* tests/misc/pwd-option.sh (base): Initialize with -P, now that -L is the default, to accommodate an initial working directory with a symlink component. * tests/misc/readlink-fp-loop.sh: Use $(env pwd -P) to get the absolute working directory. Using "env" ensures we do not invoke any shell built-in, and PATH ensures we invoke the one from coreutils. * tests/readlink/can-e.sh: Likewise. * tests/readlink/can-f.sh: Likewise. * tests/readlink/can-m.sh: Likewise.
2014-07-01maint: fix const correctness warnings with security_context_tPádraig Brady
The security_context_t type was always an artificial separation from a standard char* string, and various libselinux using code assumed both were synonymous. In addition, prior to libselinux 2.3 function declarations were incorrect wrt constness of this type. Here we replace security_context_t with char*, and also provide a wrapper function to cater for the const issue on older libselinux. * src/system.h (se_const): A new function to avoid and identify the const issue on older libselinux. * src/copy.c: s/security_context_t/char */. * src/cp.c: Likewise. * src/id.c: Likewise. * src/install.c: Likewise. * src/ls.c: Likewise. * src/mkdir.c: Likewise. * src/mkfifo.c: Likewise. * src/mknod.c: Likewise. * src/runcon.c: Likewise. * src/selinux.c: Likewise. * tests/cp/no-ctx.sh: Likewise. * src/chcon.c: Likesize.
2014-06-30pwd: assume -L mode by default, as per POSIXPádraig Brady
* src/pwd.c (main): Adjust default mode to be "logical" and independent of the POSIXLY_CORRECT env var. (usage): Mention the default mode of operation. * doc/coreutils.texi (pwd invocation): Adjust accordingly. * tests/misc/pwd-option.sh: Likewise. * NEWS: Mention the change in behavior.
2014-06-26tests: use predetermined NON_ROOT_GIDPádraig Brady
* HACKING: GID is more useful in tests than group name, so rename input param from NON_ROOT_GROUP to NON_ROOT_GID to make it obvious that only a group ID is now acceptable, thus allowing GID lookups to be avoided throughout the tests. * init.cfg (require_root_): Likewise. * tests/misc/truncate-owned-by-other.sh: Avoid looking up the GID. * tests/touch/now-owned-by-other.sh: Likewise. * tests/misc/chroot-credentials.sh: Likewise. Also fix an instance of comparison against NON_ROOT_GROUP which would have given a false failure if a non numeric value was passed in. * tests/id/setgid.sh: Use previously looked up gid as a more accurate base for the subsequent adjustment, and move the uid lookup within chroot, rather than having the overhead of a separate `id` invocation.
2014-06-26id: output the effective group for the processPetr Stodůlka
* src/id.c (print_full_info): When no user is specified, output the effective group for the _process_, rather than the default group from the system database, which may be different. * tests/id/setgid.sh: Add a case for `id` as well as `id -G`. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/7320 Reported at http://bugzilla.redhat.com/1016163
2014-06-25df: report correct device in presence of eclipsed mountsPádraig Brady
* src/df.c (last_device_for_mount): A new function to identify the last device mounted for a mount point. (get_disk): Use the above to discard mount entries for a device, where a later mount entry uses a different device name than that of the user specified device. * tests/df/over-mount-device.sh: A new root test. * tests/local.mk: Reference the new test. * NEWS: Reword for all these related recent fixes. Discussed at: http://bugs.gnu.org/16539#69
2014-06-24df: output placeholder values for inaccessible mount pointsPádraig Brady
A system provided mount entry may be unavailable due to TOCTOU race, or if another device has been over-mounted at that position, or due to access permissions. In all these cases output "-" placeholder values rather than either producing an error, or in the over-mount case outputting values for the wrong device. * src/df.c (device_list): A new global list now updated by filter_mount_list(). (filter_mount_list): Adjust to take a parameter as to whether update the global mount list, or only the mount <-> device ID mapping. (get_dev): Use the device ID mapping to ensure we're not outputting stats for the wrong device. Also output placeholder values when we can't access a system specified mount point. (get_all_entries): Set the DEVICE_ONLY param for filter_mount_list(). (devname_for_dev): A new function to search the mount <-> dev mapping. * test/df/skip-duplicates.sh: Adjust accordingly. * NEWS: Mention the bug fixes. Discussed at: http://bugs.gnu.org/16539
2014-06-24du: ignore directory cycles due to bind mountsPádraig Brady
* src/du.c (process_file): Treat cycles due to bind mounts like cycles due to following symlinks. * tests/du/bind-mount-dir-cycle.sh: Adjust accordingly. * NEWS: Mention the change in behavior. Reported at http://bugzilla.redhat.com/836557
2014-06-18df: use all of the last device details providedPádraig Brady
* src/df.c (filter_mount_list): Recent commit v8.22-108-g25a2c94 failed to copy file system type along with the updated device name. Therefore simply replace the existing mount entry with the current one with all the latest device details. Note the name, even if not shorter in this entry, will be replaced with a shorter name in a subsequent mount entry. * tests/df/skip-duplicates.sh: Add a test case.
2014-06-18seq: fix incorrect output with start or end of -0Pádraig Brady
* src/seq.c (main): Avoid seq_fast() with a start or end of -0. * tests/misc/seq.pl: Add test cases. * NEWS: Mention the fix. Fixes http://bugs.gnu.org/17800
2014-06-11tests: fix version printing for ginstall in one testPádraig Brady
* tests/install/d-slashdot.sh: 'ginstall' is the binary name in the build directory, not 'install'.
2014-06-11install: allow options -D and -t to be used togetherBernhard Voelker
* src/install.c (install_file_in_file_parents): Factor out the creation of any parent directories into ... (mkancesdirs_safe_wd): ... this new function. (install_file_in_dir): Add the parameter 'mkdir_and_install', and call the above new function if it evaluates to true. (main): During parsing of the -t option, move the check whether the target_directory exists down after the option parsing loop, and do not complain about stat(optarg,...) failing if -D was given. Pass 'mkdir_and_install' to install_file_in_dir(). * doc/coreutils.texi (install invocation): Remove the (false) restriction that -D would be ignored together with -t. Instead, clarify install's new bahavior. Fix the node's reference in the top-level @direntry for consistency. * src/install/basic-1.sh: Add tests for the now-allowed combination of the -D and -t options. * NEWS: Mention the improvement.
2014-06-11build: update gnulib submodule and tests/init.sh to latestPádraig Brady
* gnulib: Update to latest. * tests/init.sh: Update from gnulib.
2014-06-03tests: consolidate tests for true and falsePádraig Brady
* src/true.c (main): Add a comment about the possibility of true returning EXIT_FAILURE due to write failure. * tests/misc/false-status.sh: Fix so we're testing the tool and not the shell builtin. Add a case for true(1). * tests/misc/help-version.sh: Skip /dev/full test for true as well as false since the exit status is tested separately. Also remove the iterations for different LC_MESSAGES, as this was only applied for false(1). Translations are not honored in the test dir and so would need separate handling in any case.
2014-06-01cut: restore special case handling of -f with -d$'\n'Pádraig Brady
commits v8.20-98-g51ce0bf and v8.20-99-gd302aed changed cut(1) to process each line independently and thus promptly output each line without buffering. As part of those changes we removed the special handling of --delimiter=$'\n' --fields=... which could be used to select arbitrary (ranges of) lines, so as to simplify and optimize the implementation while also matching the behavior of different cut(1) implementations. However that GNU behavior was in place for a long time, and could be useful in certain cases like making a separated list like `seq 10 | cut -f1- -d$'\n' --output-delimiter=,` although other tools like head(1) and paste(1) are more suited to this operation. This patch reinstates that functionality but restricts the "line behind" buffering behavior to only the -d$'\n' case. We also fix the following related edge case to be more consistent: before> printf "\n" | cut -s -d$'\n' -f1- | wc -l 2 before> printf "\n" | cut -d$'\n' -f1- | wc -l 1 after > printf "\n" | cut -s -d$'\n' -f1- | wc -l 1 after > printf "\n" | cut -d$'\n' -f1- | wc -l 1 * src/cut.c (cut_fields): Adjust as discussed above. * tests/misc/cut.pl: Likewise. * NEWS: Mention the change in behavior both for v8.21 and this effective revert. * cfg.mk (old_NEWS_hash): Adjust for originally omitted v8.21 entry. * src/paste.c: s/delimeter/delimiter/ comment typo fix.
2014-05-29df: use the last device name provided by the systemPádraig Brady
The device name reported for a particular mount entry may no longer be valid if the mount point was subsequently mounted on a different device. Therefore honor the order of the mount list returned by the system and use the last reported device name. * src/df.c (filter_mount_list): When discarding the current mount entry, ensure that a new device name is not also discarded. * tests/df/skip-duplicates.sh: Add a test case. Also fix a false failure in the edge case of a system with only a single file system. * NEWS: Mention the fix.
2014-05-21tests: use chroot --user rather than internal setuidgid toolPádraig Brady
* init.cfg (require_root_): Adjust to use chroot, and make `require_built_ chroot` implicit when chroot used in the test. * po/POTFILES.in: Remove reference to setuidgid tool. * src/.gitignore: Likewise. * src/local.mk: Likewise. * src/setuidgid.c: Remove. * tests/cp/preserve-gid.sh: s/setuidgid/chroot --user/. * tests/cp/special-bits.sh: Likewise. * tests/id/setgid.sh: Likewise. * tests/misc/truncate-owned-by-other.sh * tests/mv/sticky-to-xpart.sh: Likewise. * tests/rm/fail-2eperm.sh: Likewise. * tests/rm/no-give-up.sh: Likewise. * tests/touch/now-owned-by-other.sh: Likewise. * tests/misc/chroot-fail.sh: Skip if chroot not built.
2014-05-21chroot: make changing root check more robustPádraig Brady
* src/chroot.c (is_root): A new helper function to determine if the passed argument is the root directory based on inode comparison. (main): Use the new helper rather than comparing strings. * tests/misc/chroot-fail.sh: Add cases for alternative root paths.
2014-05-21chroot: with --userspec clear root's supplemental groupsPádraig Brady
It's dangerous and confusing to leave root's supplemental groups in place when specifying other users with --userspec. In the edge case that that is desired one can explicitly specify --groups. Also we implicitly set the system defined supplemental groups for a user. The existing mechanism where supplemental groups needed to be explicitly specified is confusing and not general when the lookup needs to be done within the chroot. Also we extend the --groups syntax slightly to allow clearing the set of supplementary groups using --groups=''. * src/chroot.c (setgroups): On systems without supplemental groups, clearing then is a noop and so should return success. (main): Lookup the primary GID with getpwuid() when just a numeric uid is specified, and also infer the USERNAME from this call, needed when we're later looking up the supplemental groups for a user. Support clearing supplemental groups, either implicitly for unknown users, or explicitly when --groups='' is specified. * tests/misc/chroot-credentials.sh: Various new test cases * doc/coreutils.texi (chroot invocation): Adjust for the new behavior. * NEWS: Mention the change in behavior.
2014-05-16chroot: don't chdir() if not changing rootPádraig Brady
This allows chroot to be used as a light weight tool to change user identification for a command, while not changing the current working directory. It also makes `chroot / true` consistently succeed on all platforms for non root users. * src/chroot.c (main): If the same root is specified. i.e. '/' then don't change the current working directory, and avoid the overhead of the other redundant calls. * tests/misc/chroot-fail.sh: Remove failure guard previously needed on some systems. Also add an explicit case to ensure we don't change directory. * NEWS: Mention the change in behavior.
2014-05-13df: ignore non file system entries in /proc/mountsPádraig Brady
Linux with network namespaces contains entries in /proc/mounts like: proc net:[4026532464] proc rw,nosuid,nodev,noexec,relatime 0 0 resulting in a failure to stat 'net:[...]', inducing a warning and an exit with failure status. * src/df.c (get_dev): Ignore all relative mount points. * tests/df/skip-duplicates.sh: Add an entry to test relative dirs.
2014-05-13df: fix handling of symlinks in mount listPádraig Brady
The symlink handling in commit v8.21-172-g33660b4 was incomplete in the case where there were symlinks in the mount list itself. For example, in the case where /dev/mapper/fedora-home was in the mount list and that in turn was a symlink to /dev/dm-2, we have: before> df --out=source /dev/mapper/fedora-home devtmpfs after > df --out=source /dev/mapper/fedora-home /dev/mapper/fedora-home * src/df.c (get_disk): Compare canonicalized device names from the mount list. Note we still display the non canonicalized name, even if longer, as we assume that is the most representative. * tests/df/df-symlink.sh: This could theoretically fail on some systems depending on the content of the mount list, but adjust to fail on any system where symlinks are present in the mount list for the current dir.
2014-05-13df: also deduplicate virtual file systemsPádraig Brady
* src/df.c (filter_mountlist): Remove the constraint that a '/' needs to be in the device name for a mount entry to be considered for deduplication. Virtual file systems also have storage associated with them (like tmpfs for example), and thus need to be deduplicated since they will be shown in the default df output and subject to --total processing also. * test/df/skip-duplicates.sh: Add a test to ensure we deduplicate all entries, even for virtual file systems. Also avoid possible length operations on many remote file systems in the initial check of df operation. Also avoid the assumption that "/root" is on the same file system as "/". * NEWS: Mention the change in behavior.
2014-05-13tests: fix spurious failure with leading spaces in file namesPádraig Brady
* tests/ls/stat-vs-dirent.sh: This test lists all parent directories, and would spuriously fail if any of those had a file name with a leading space as the first entry. There is only ever a single space between the right aligned inode number and the file name, so process accordingly.
2014-05-10shred: don't infloop upon negative sizeJim Meyering
* src/shred.c (main): With the preceding change, shred -s-2 FILE would write 64KB blocks forever -- or until disk full. This change makes shred reject a negative size. * tests/misc/shred-negative.sh: New file. * tests/local.mk (all_tests): Add it.
2014-05-07tests: improve new ascii test of ddBernhard Voelker
* tests/dd/ascii.sh: Avoid unnecessary subshells. Catch dd's exit code. Remove testing artifact. In the case of a comparison failure, show the differences in octal format in addition to "binary files differ". Simplify the creation of the 'in' file.
2014-05-06dd: fix conv=ascii, conv=ebcdic, conv=ibm to match POSIXPaul Eggert
Problem reported by Don Baggett in <http:/bugs.gnu.org/17422>. * NEWS: * doc/coreutils.texi (dd invocation): Document this. * src/dd.c (conversions): conv=ascii implies conv=unblock. conv=ebcdic and conv=ibm imply conv=block. (ascii_to_ebcdic, ebcdic_to_ascii): Correct to match POSIX 1003.1-2013. * tests/dd/ascii.sh: New file. * tests/local.mk (all_tests): Add it.