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* exec: Make ARG_MAX accounting a bit less restrictive with large pagesTavian Barnes2018-07-071-3/+6
| | | | | | | | | | | | | | | | | | | For Linux-style accounting, we really only need to handle a single page of wasted space due to rounding. Subtracting two pages for extra headroom was reasonable on systems with 4K pages, but overkill on systems like ppc64le with 64K pages. Worse yet was the fact that Alpine Linux only gives us 128K for arguments. Instead, only subtract a single page, plus the POSIX-recommended 2048 bytes. Credit to Mike Sullivan for the initial patch and testing on Alpine ppc64le. Fixes: http://build.alpinelinux.org/buildlogs/build-edge-ppc64le/testing/bfs/bfs-1.2.2-r0.log Co-authored-by: Mike Sullivan <mksully22@gmail.com>
* tests: Use -maxdepth 0 instead of | head -n1Tavian Barnes2018-07-071-1/+1
| | | | | | | This avoids the potential for "broken pipe" errors observed on some systems, e.g. http://build.alpinelinux.org/buildlogs/build-edge-s390x/testing/bfs/bfs-1.2.2-r0.log
* parse: Add some missing failure messagesTavian Barnes2018-07-061-0/+2
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* stat: Handle platforms that don't support AT_EMPTY_PATH for fstatat()Tavian Barnes2018-07-021-3/+12
| | | | | | | | In particular, this caused -fprint to break on Hurd since AT_EMPTY_PATH is defined and works for some syscalls but not fstatat(). Should fix: https://buildd.debian.org/status/fetch.php?pkg=bfs&arch=hurd-i386&ver=1.2.2-1&stamp=1529920401&raw=0
* stat: Don't try to statx() on architectures without the syscallTavian Barnes2018-07-021-2/+2
| | | | | | | | | | Turns out that ia64 and sh4 define all the structures and constants, but don't actually support the statx() system call itself. So instead of testing for the constants, just test for the syscall number directly. Should fix: https://buildd.debian.org/status/fetch.php?pkg=bfs&arch=ia64&ver=1.2.2-1&stamp=1529917943&raw=0 https://buildd.debian.org/status/fetch.php?pkg=bfs&arch=sh4&ver=1.2.2-1&stamp=1529917893&raw=0
* exec: Don't assume bfs_exec_debug() doesn't change errnoTavian Barnes2018-06-251-4/+3
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* bftw: Use bftw_action as the return type when applicableTavian Barnes2018-06-251-6/+8
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* tests: Relax test_depth_errorTavian Barnes2018-06-242-5/+0
| | | | | Whether bfs can return children of a directory without search permission depends on whether d_type is filled in, which can't be guaranteed.
* Release 1.2.21.2.2Tavian Barnes2018-06-233-2/+16
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* bftw: Introduce bftw_reader typeTavian Barnes2018-06-231-367/+336
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* tests: New test for -depth in the presence of read errorsTavian Barnes2018-06-232-0/+22
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* eval: Don't use %m to report a non-errno errorTavian Barnes2018-06-191-1/+1
| | | | Fixes: 2a45ad01e211d0b36056c21d5211be46195b273d
* parse: Don't leave expr->mode_cmp uninitializedTavian Barnes2018-06-181-1/+1
| | | | | | | | | When adding support for -perm +7777, I introduced an unconditional break that should have been conditional. The bug was observable with $ ./tests.sh --verbose --bfs="valgrind $PWD/bfs" test_perm_leading_plus_symbolic Fixes: 7f8bacca4c2b1d35bb65ddf8cbf70fadf1adf66e
* bftw: Replace the circular buffer queue with a linked listTavian Barnes2018-04-071-91/+39
| | | | The performance is within 1% with much simpler code.
* README: Add a repology badgeTavian Barnes2018-04-051-3/+6
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* tests: Work around broken rm in cleanupTavian Barnes2018-03-181-0/+7
| | | | | | | BusyBox rm, for example, doesn't handle long paths properly, so give it some help. C.f. http://lists.busybox.net/pipermail/busybox/2018-March/086302.html
* tests: Don't use process substitution for diffTavian Barnes2018-03-181-7/+18
| | | | | This frees up an extra FD for some diff implementations like openbox that need it when ulimit -n is low.
* tests: Be robust to ls -i implementation that output a leading spaceTavian Barnes2018-03-181-1/+1
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* tests: Add a --noclean option to preserve the test directoryTavian Barnes2018-03-181-2/+14
| | | | Useful for debugging testsuite failures.
* New 'sanitized' make targetTavian Barnes2018-03-181-1/+4
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* mtab: Fall back on /proc/mounts if /etc/mtab isn't availableTavian Barnes2018-03-041-0/+4
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* exec: Fix size accounting when recovering from E2BIGTavian Barnes2018-02-101-4/+6
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* Release 1.2.11.2.1Tavian Barnes2018-02-083-2/+10
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* exec: Avoid a warning when building with _FORTIFY_SOURCETavian Barnes2018-02-061-1/+6
| | | | | Also, don't pass the address of errno itself to write(), since write() is allowed to modify it.
* eval: Don't unnecessarily zero fields in struct eval_stateTavian Barnes2018-02-011-7/+6
| | | | | | The designated initializer causes everything not mentioned to be zeroed, a waste of time that shows up on profiles. It also has the potential to hide uninitialized-use bugs.
* bftw: Open-code the "."/".." checksTavian Barnes2018-02-011-3/+4
| | | | | | GCC doesn't (yet) produce very fast code for strcmp() against constant strings (see https://gcc.gnu.org/PR78809), so hand-coding the comparison manually helps significantly.
* bftw: Fix the heap implementationTavian Barnes2018-02-011-1/+21
| | | | | | | | | | There were two problems: - bubble_down() would always bubble the entry all the way down the heap, instead of stopping at the appropriate place - remove() may need to bubble the replacement entry *up* the heap, if it came from a different subtree
* Release 1.21.2Tavian Barnes2018-01-203-2/+16
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* printf: Add %w and %Wk for file birth timesTavian Barnes2018-01-205-1/+37
| | | | | %w and %W were chosen to match the format specifiers for file birth times from stat(1)
* stat: New wrapper around the stat() familyTavian Barnes2018-01-0815-299/+565
| | | | | This lets bfs transparently support the new statx() system call on Linux, giving it access to file birth times.
* Minor header cleanupsTavian Barnes2018-01-084-9/+12
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* parse: Minor cleanups from af7878c/7da0d28Tavian Barnes2018-01-061-6/+2
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* bftw: Rename 'last' to 'previous'Tavian Barnes2018-01-061-11/+11
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* Keep track of required FDs per-exprTavian Barnes2017-12-155-16/+35
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* exec: Minor whitespace consistency fixTavian Barnes2017-11-131-1/+1
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* color: Optimize cfprintf() a bitTavian Barnes2017-11-131-76/+86
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* color: Implement %m for cfprintf()Tavian Barnes2017-11-135-11/+19
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* exec: Fix error reportingTavian Barnes2017-11-121-5/+9
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* exec: Recover from E2BIGTavian Barnes2017-11-126-20/+135
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* cmdline: Account for files opened during/between evaluations more carefullyTavian Barnes2017-11-123-9/+26
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* Add support for file birth/creation times on platforms that have itTavian Barnes2017-11-057-60/+145
| | | | Fixes #19
* parse: Support -perm +7777, for compatibility with BSD and old GNU findTavian Barnes2017-11-054-5/+28
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* Release 1.1.41.1.4Tavian Barnes2017-10-273-2/+13
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* exec: Make argument size tracking robust to page-granularity accountingTavian Barnes2017-10-261-3/+8
| | | | | | | | From looking at the Linux exec() implementation, it seems a big part of the reason we needed extra headroom was that the arguments/environment are copied page-by-page, so even a small accounting difference could result in an error of an entire page size. Grow the headroom to two entire pages to account for this.
* exec: Apply more headroom to avoid E2BIGTavian Barnes2017-10-221-4/+16
| | | | | | | | | | | | | I ran into "argument list too long" errors with a bfs -type f -exec grep pattern '{}' + command, despite the current accounting being pretty careful. Some experimentation showed that an additional 2048 bytes of headroom is always safe. While we're at it, explicitly account for the terminating NULL pointers in argv and environ.
* Use "error:" prefix consistentlyTavian Barnes2017-10-221-4/+4
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* cmdline: Declare functions in a more natural orderTavian Barnes2017-10-211-7/+7
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* parse: Keep track of what files are already openTavian Barnes2017-10-216-50/+185
| | | | Fixes #22
* Report errors that occur when closing filesTavian Barnes2017-10-216-11/+60
| | | | Otherwise we miss write errors that occur when flushing the cache.
* Add a man pageTavian Barnes2017-10-153-15/+686
| | | | Fixes #31
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