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11 Commits

Author SHA1 Message Date
Paul Eggert
0aa991f386 Update copyright years 
UPDATE_COPYRIGHT_USE_INTERVALS=1 \
$HOME/src/gnu/gnulib/build-aux/update-copyright \
  $(git ls-files | sed -e '/^gnulib$/d
			   /^paxutils$/d
			   /^COPYING$/d
			   /\/fdl.texi$/d')
sed -i '2000,${
    /^Copyright @copyright/d
    s/^[0-9]*--\(2025 Free Software Foundation, Inc.\)/Copyright (C) \1/
  }' doc/tar.texi
 2025-01-01 18:33:10 -08:00
Paul Eggert
281e03ec6c Prefer < 0 to == -1 where either will do 
Also, fix an unlikely read overflow in sys_exec_setmtime_script.
* src/buffer.c (open_compressed_archive):
* src/compare.c (verify_volume):
* src/exclist.c (info_attach_exclist):
* src/misc.c (xfork):
* src/sparse.c (sparse_scan_file_seek):
* src/system.c (sys_wait_for_child, sys_spawn_shell)
(wait_for_grandchild, sys_wait_command, sys_exec_info_script)
(sys_exec_checkpoint_script, sys_exec_setmtime_script):
* src/transform.c (_single_transform_name_to_obstack):
* src/xattrs.c (xattrs__acls_set, xattrs_acls_get)
(xattrs_xattrs_get, xattrs__fd_set, xattrs_selinux_get)
(xattrs_selinux_set):
* tests/checkseekhole.c (check_seek_hole, main):
Simplify failure tests by just looking at return value sign.
* src/system.c (sys_exec_setmtime_script):
Don’t assume ‘read’ result fits in int.
(sys_exec_setmtime_script): Don’t reject 1 second before Epoch.
 2024-08-04 01:41:43 -07:00
Paul Eggert
c6f0ad5117 Update copyright years 
UPDATE_COPYRIGHT_USE_INTERVALS=1 \
gnulib/build-aux/update-copyright \
  $(git ls-files | sed -e '/^gnulib$/d
			   /^paxutils$/d
			   /^COPYING$/d
			   /\/fdl.texi$/d')
sed -i '2000,${
    /^Copyright @copyright/d
    s/^[0-9]*--\(2024 Free Software Foundation, Inc.\)/Copyright (C) \1/
  }' doc/tar.texi
 2024-01-01 19:08:46 -08:00
Paul Eggert
719d3b44b7 Update copyright years 
UPDATE_COPYRIGHT_USE_INTERVALS=1 \
gnulib/build-aux/update-copyright \
  $(git ls-files | sed -e '/^gnulib$/d
                           /^paxutils$/d
			   /^COPYING$/d
			   /\/fdl.texi$/d')
 2023-01-06 12:50:36 -08:00
Sergey Poznyakoff
5c713540e3 Update copyright years 2022-01-02 10:25:29 +02:00
Sergey Poznyakoff
afa743ac23 Update copyright years 2021-01-06 17:55:16 +02:00
Sergey Poznyakoff
8d90723d30 Update copyright years 2020-02-08 13:21:13 +02:00
Sergey Poznyakoff
2684c88a49 Version 1.31 2019-01-02 20:20:28 +02:00
Sergey Poznyakoff
30fe67226a Update copyright years 2017-01-02 14:49:55 +02:00
Sergey Poznyakoff
8980ecd62d Update copyright years 2016-01-20 11:29:17 +02:00
Sergey Poznyakoff
b684326e69 Use SEEK_HOLE for hole detection 
Based on patch by Pavel Raiskup.

Use SEEK_HOLE/SEEK_DATA feature of lseek on systems that support
it.  This can make archiving of sparse files much faster.

Implement the --hole-detection option to allow users to select
hole-detection method.

* src/common.h (hole_detection_method): New enum.
(hole_detection): New global.
* src/sparse.c  (sparse_scan_file_wholesparse): New function as a
method for detecting sparse files without any data.
(sparse_scan_file_raw): Rename from sparse_scan_file; with edits.
(sparse_scan_file_seek): New function.
(sparse_scan_file): Reimplement function.
* src/tar.c: New option --hole-detection

* tests/checkseekhole.c: New file.
* tests/.gitignore: Mention two test binaries.
* tests/Makefile.am: Add new tests.
* tests/testsuite.at (AT_SEEKHOLE_PREREQ): New macro.
Include sparse06.at.
* tests/sparse06.at: New test case.
* tests/sparse02.at: Force raw hole-detection method.
* tests/sparsemv.at: Likewise.
* tests/sparsemvp.at: Likewise.

* doc/tar.1: Document --hole-detection option.
* doc/tar.texi: Document hole-detection algorithms and
command-line options.
* NEWS: Document hole-detection.
 2015-12-06 00:14:55 +02:00