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* src/local.mk (src_libstdbuf_so_LDADD): Add $(LIBINTL),
to avoid link failure on OS X.
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* src/ioblksize.h (IO_BUFSIZE): Double the size, to 128KB.
Add four more columns to the blksize-vs-bandwidth table
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* doc/coreutils.texi: Add "@documentencoding UTF-8".
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* src/stat.c (human_fstype): Add new file system ID definitions.
* NEWS: Mention the improvement.
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* src/stat.c (human_fstype): Adjust a couple of existing constants
to be a consistent width and capitalization so that the
src/fs-magic-compare target works without reporting false positives.
* cfg.mk (sc_fs-magic-compare): A new syntax check to enforce this.
Improved by: Jim Meyering
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__SUNPRO_C >= 0x590 /*12.0*/ supports __attribute((constructor))
required by stdbuf, so use a more direct check for this.
Note ensure that --libexecdir is set to the appropriate
install location for libstdbuf.so so that stdbuf works
when installed on the system like it does when running
tests in the build directory.
* configure.ac (stdbuf_supported): Use a test prog to determine support.
* src/libstdbuf.c (stdbuf): Define appropriately for non GCC compilers,
and provide early feedback (compilation warning) if trying to compile
libstdbuf without the necessary support.
* src/stdbuf.c (set_LD_PRELOAD): Add a note on having stdbuf
look for libstdbuf.so in the default lib search path.
* cfg.mk (sc_prohibit-gl-attributes): Adjust so we can exclude
libstdbuf.so from prohibiting '__attribute', since we want
this form to avoid silently eliding this required attribute on non GCC.
Reported and tested by Rich Burridge.
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* 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.
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* 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.
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* src/chroot.c (main): Consistently exit with failure status immediately
upon hitting a terminal issue, rather than diagnosing multiple issues
lest users think previous failing actions are optional.
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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.
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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.
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* src/df.c (decode_output_arg): Use only enum constants to avoid
clang "warning: comparison of constant -1 with expression of
type 'display_field_t' is always false"
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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.
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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.
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* 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.
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* 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.
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* bootstrap: Create critical bootstrap files for autopoint,
before gnulib re-generates them, avoiding the issue. See:
http://lists.gnu.org/archive/html/coreutils/2013-11/msg00038.html
http://savannah.gnu.org/bugs/?40083
https://pad.lv/1311895
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* 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.
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* src/shred.c (main): Limit -n (number of passes) value to
ULONG_MAX, not to UINT32_MAX, since the vars are unsigned long.
Limit the -s (file size) value to OFF_T_MAX.
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* 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.
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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.
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* tests/chmod/c-option.sh: Use `compare /dev/null ... || fail=1`
rather than `test -s ... && fail=1`, so that the file contents
are output, thus improving diagnostics for failing tests.
* tests/cp/acl.sh: Likewise.
* tests/cp/cp-a-selinux.sh: Likewise.
* tests/cp/cp-mv-enotsup-xattr.sh: Likewise.
* tests/cp/reflink-perm.sh: Likewise.
* tests/dd/misc.sh: Likewise.
* tests/misc/env-null.sh: Likewise.
* tests/misc/env.sh: Likewise.
* tests/misc/nice.sh: Likewise.
* tests/misc/nohup.sh: Likewise.
* tests/misc/printenv.sh: Likewise.
* tests/misc/xattr.sh: Likewise.
* tests/mv/update.sh: Likewise.
* tests/rm/deep-2.sh: Likewise.
* tests/rm/read-only.sh: Likewise.
* tests/split/r-chunk.sh: Likewise.
* tests/tail-2/follow-stdin.sh: Likewise.
* tests/tail-2/inotify-race.sh: Likewise.
* tests/tail-2/wait.sh: Likewise.
* tests/touch/no-dereference.sh: Likewise.
* cfg.mk (sc_prohibit_test_empty:): New syntax-check.
* tests/cp/proc-zero-len.sh: Adjust to avoid false syntax-check failure.
* tests/cp/proc-zero-len.sh: Likewise.
* tests/mv/part-symlink.sh: Likewise.
* tests/tail-2/infloop-1.sh: Likewise.
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* src/copy.c (copy_internal): Include the copy_attr() call for symlinks.
This should not dereference symlinks, since llistxattr() is used
in attr_copy_file() in libattr, and so should copy all but the filtered
extended attributes. Note we don't just move the copy_attr() call
before the set_owner() call, as that would break capabilities
for non symlinks.
* tests/cp/cp-mv-enotsup-xattr.sh: Add a test case.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/16131
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* init.cfg (require_smack_): New function.
* local.mk: Referenced new tests.
* tests/id/smack.sh: SMACK tests (new file).
* tests/mkdir/smack-no-root.sh: SMACK tests (new file).
* tests/mkdir/smack-root.sh: SMACK tests (new file).
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* scripts/autotools-install (tarballs): Update to latest.
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* Makefile.am (gen-ChangeLog): Clear amend_git_log when we
don't set it, so that an envvar setting cannot cause trouble.
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The devmsg() calls that took quote_n() arguments,
didn't normally output anything, but still incurred
the overhead of those quote_n() calls.
* src/numfmt.c (devmsg): Move the inline function
with _internal_ enablement check to...
* src/system.h: ...here as a variadic macro, with
the enablement check at the outer level.
* src/factor.c: As per numfmt.c but there is no
performance change in this case.
* NEWS: Mention the significant performance improvement.
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* src/numfmt.c (setup_padding_buffer): Simplify the code by not
explicitly dealing with heap exhaustion.
(parse_format_string): Likewise. Handle multiple grouping
modifiers as does the standard printf. Handle the new leading
zero --format modifier.
(double_to_human): Use more defensive coding against overwriting
stack buffers. Honor the leading zeros width.
(usage): Mention the leading zero --format modifier.
(main): Allow --padding in combo with a --format (width),
as the number of leading zeros are useful independent of
the main field width.
* doc/coreutils.texi (numfmt invocation): Likewise.
* tests/misc/numfmt.pl: Add new test cases.
* NEWS: Mention the improvement.
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* doc/coreutils.texi (pr invocation): Clarify that -w or -W
will be rounded down so that each column has the same width.
Adjust the wording for -W, to avoid the implication that the
width of -S is insignificant to the page width.
* src/pr.c (usage): Add a period to avoid ambiguity in
the man page output.
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This issue was identified by running the test suite with
http://code.google.com/p/address-sanitizer/
which is included in GCC 4.8 and enabled with -fsanitize=address
This was checked on Fedora 20 with GCC 4.8 as follows:
$ yum install libasan # http://bugzilla.redhat.com/991003
$ rm -f src/ptx.o
$ make check AM_CFLAGS='-fsanitize=address' SUBDIRS=. VERBOSE=yes
$ failure identified in tests/test-suite.log
To see this particular failure triggered with multiple files:
$ src/ptx <(echo a) <(echo a) 2>&1 | asan_symbolize.py -d
=================================================================
==32178==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x60200000e74f at pc 0x435442 bp 0x7fffe8a1b290 sp 0x7fffe8a1b288
READ of size 1 at 0x60200000e74f thread T0
#0 0x435441 in define_all_fields coreutils/src/ptx.c:1425
#1 0x7fa206d31d64 in __libc_start_main ??:?
#2 0x42f77c in _start ??:?
0x60200000e74f is located 1 bytes to the left of 3-byte region
[0x60200000e750,0x60200000e753) allocated by thread T0 here:
#0 0x421809 in realloc ??:?
#1 0x439b4e in fread_file coreutils/lib/read-file.c:97
Shadow bytes around the buggy address:
0x0c047fff9c90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9ca0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9cb0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9cc0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9cd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fd fd
=>0x0c047fff9ce0: fa fa 03 fa fa fa fd fd fa[fa]03 fa fa fa 00 00
0x0c047fff9cf0: fa fa 04 fa fa fa 04 fa fa fa fd fa fa fa fd fa
0x0c047fff9d00: fa fa 00 fa fa fa fd fa fa fa 00 fa fa fa 00 fa
0x0c047fff9d10: fa fa fd fa fa fa fd fa fa fa fd fa fa fa fd fa
0x0c047fff9d20: fa fa fd fa fa fa fd fa fa fa fd fa fa fa fd fa
0x0c047fff9d30: fa fa fd fa fa fa 00 fa fa fa 00 fa fa fa 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
ASan internal: fe
==32178==ABORTING
The initial report and high level analysis were from Jim Meyering...
"The underlying problem is that swallow_file_in_memory()
is setting the contents of the global text_buffer for the first file,
then updating it (clobbering old value) for the second file.
Yet, some pointers to the initial buffer have been squirreled away
and later, one of them (keyafter) is presumed to point into
the new "text_buffer", which it does not. The subsequent
SKIP_WHITE_BACKWARDS use backs up "cursor" and goes out of bounds."
* src/ptx.c (text_buffers): Maintain references for the limits of each
buffer corresponding to each file, rather than just the last processed.
(struct OCCURS): Add a member to map back to the corresponding file.
Note normally this could be computed from the "reference" member
rather than needing the extra storage, however this is not possible
when in --references mode.
(find_occurs_in_text): Reference the array rather than a single entry.
(define_all_fields): Likewise. Also avoid computing the file index
since this is now stored directly.
(main): Update text_buffers[] array rather than a single text_buffer.
* tests/misc/ptx-overrun.sh: Even though this issue is already triggered
with AddressSanitizer, add a new case to demonstrate the whitespace
trimming issue, and to trigger without AddressSanitizer.
Fixes https://bugs.gnu.org/16171
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* Makefile.am (gen-ChangeLog): Sync changes from GNU hello,
to ensure exit status is propagated, and to support an optional
git-log-fix file.
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* gl/lib/fadvise.c (fadvice_t): This might go to gnulib some day so
remove the trailing comma.
Fixes http://bugs.gnu.org/17329
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* src/stat.c (usage): s/modification time/data modification time/;
s/change time/status change time/
* doc/coreutils.texi: Ditto.
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Since the recent commit v8.22-68-g08783f1, ls coloring
is now dependent on the COLORTERM environment variable.
* tests/envvar-check: Unset COLORTERM from test environment.
* tests/ls/color-dtype-dir.sh: Ensure coloring is used.
* tests/misc/ls-misc.pl: Likewise.
Prompted by the continuous integration build failure at:
http://hydra.nixos.org/build/10397646
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* man/chmod.x: Don't rely on the bold markup for 'a' to
distinguish it as that's not done in all cases.
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mach-color was replaced by mach-gnu-color in Hurd in 2012.
mach-color is left for compatibility and corresponding
definitions for mach-color are still found in ncurses.
* src/dircolors.hin: Add hurd and mach-gnu-color.
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--colors controls whether to output colors depending on
whether we're connected to a terminal or not, while this
change gives control over which terminals we output colors to.
* NEWS: Mention the change in behavior.
* src/ls.c (known_term_type): A new function to search the static
list from dircolors.h
(parse_ls_colors): Honor the TERM when both LS_COLORS and COLORTERM
are non empty.
* tests/ls/color-term.sh: A new test.
* tests/local.mk: Reference the new test.
Fixes http://bugs.gnu.org/15992
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* src/remove.c (prompt): Explain where the difficulty with translating
these two strings resides, and suggest an alternative: the one that
Paul Eggert first proposed back in 2002, which seems fully resistant.
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* src/df.c (alloc_table_row): Use the size of char** to enlarge
the table. Spotted by Coverity.
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* tests/dd/sparse.sh: When testing that a hole is created,
use an existing sparse destination file, so that we're
not write extending the file size, and thus avoiding
speculative preallocation which can result in smaller
holes than requested.
Workaround suggested by Brian Foster
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* src/ln.c (do_link): It's not obvious that record_file() is a noop
in the symlink case (in that case dest_set is NULL and so ignored).
So to make it obvious, and to avoid false positives seen in coverity,
add the explicit condition here.
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* NEWS: Add the omitted new feature.
* cfk.mk (old_NEWS_hash): Adjust accordingly.
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* NEWS: Fix a confusing old entry.
* cfg.mk (old_NEWS_hash): Adjust accordingly.
* src/cp.c (usage): Separate the -Z and --context descriptions.
* src/install.c: Likewise.
* src/mkdir.c: Likewise.
* src/mkfifo.c: Likewise.
* src/mknod.c: Likewise.
Fixes http://bugs.gnu.org/17220
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* tests/misc/numfmt.pl: Fix comment misspelling.
* src/cut.c: Likewise.
* src/tsort.c (detect_loop): Replace an fprintf() with error().
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* doc/coreutils.texi (shred invocation): Mention some reasons
why clearing slack space might be useful.
* src/shred.c (do_wipefd): Add initial writes for each pass
for small regular files in case the storage for those is
in the inode, and thus a larger write up to a block size would
bypass that. Move the direct I/O control to...
(dopass): ... here so we can avoid enabling it for these small
initial writes. It's better to retry direct I/O for each pass
anyway to handle the case where direct I/O is disabled for only
the last portion of a file when the size is not a multiple of
the block size. Note we don't avoid the sync for the initial
write as it will be small but more importantly could be on a
different part of the disk and so worth doing independently
to ensure the write is not discarded.
* tests/misc/shred-exact.sh: Check some more direct I/O cases.
* NEWS: Mention the improvements.
The inode storage issue was mentioned by Paul Eggert.
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* src/shred.c (do_wipefd): Don't increase the size written
for an empty file up to a full block. Also increase the size
to OFF_T_MAX in the edge case where we do overflow.
* NEWS: Mention the shred improvements from recent changes.
* tests/misc/shred-passes.sh: Adjust as we no longer
write a BLKSIZE of data for empty files.
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* src/copy.c (copy_internal): Replace dev_t arg DEVICE with struct
stat pointer arg PARENT. All callers changed. This removes an
unwarranted assumption that dev_t values of 0 cannot occur in file
systems. See: http://bugs.gnu.org/17179
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* src/shred.c (do_wipefd): Shred one block of empty regular files.
This reverts an unintended part of the previous change.
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See: http://bugs.gnu.org/17149
* src/shred.c [__linux__]: Include <sys/mtio.h>.
(dorewind): New function, which works around the lseek problem with
tape drives on GNU/Linux, the same way that dd does.
(dopass): Use it. New arg ST, needed for dorewind. All uses changed.
(do_wipefd): Don't rely on undefined behavior on integer overflow
of file sizes. Use INT_ADD_OVERFLOW instead.
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This removes an unportable assumption that if lseek succeeds, the
file is capable of seeking. See: http://bugs.gnu.org/17145
* src/head.c (elseek): New function, for consistency in reporting
lseek failures.
(elide_tail_bytes_file, elide_tail_lines_seekable)
(elide_tail_lines_file, head_lines, head): Use it.
(elide_tail_bytes_file, elide_tail_lines_file):
New args CURRENT_POS and SIZE. All uses changed. Don't bother
invoking lseek, since we know the file's pos and size now.
(elide_tail_bytes_file): Change a local from uintmax_t to off_t,
since it fits.
(head): Use lseek only on regular files, since its behavior on
unseekable devices is implementation-defined.
* NEWS: Document this.
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