changelog

实战Linux编程的原代码,希望对学驱动的人能有所帮助

2002-03-09  Jim Meyering  <[e-mail]>

	* Makefile.am (EXTRA_DIST): Remove config/config.rpath,
	now that automake knows about it.

2002-03-08  Jim Meyering  <[e-mail]>

	Don't allow a malicious user to trick another user's rm process into
	removing unintended files.  In one scenario, if root is removing a
	hierarchy that is writable by the malicious user, that user may trick
	root into removing all of `/'.  Reported by Wojciech Purczynski.

	* src/remove.c (remove_dir): After chdir `..', call lstat to get the
	dev/inode of "." and fail if they aren't the same as the old numbers.
	(remove_cwd_entries): New parameter, `cwd_dev_ino'.
	(remove_dir): Likewise.
	(rm): Likewise.
	Adjust all callers.
	* src/mv.c (do_move): The first time we resort to copy/remove,
	call lstat `.' to get the device/inode numbers now required for rm.
	* src/rm.c (main): Call lstat `.' to get the device/inode numbers
	now required for rm.
	* src/remove.h (struct dev_ino): Declare new type.
	(rm): Add a parameter to the prototype.

2002-03-06  Jim Meyering  <[e-mail]>

	* Use automake-1.6.  Regenerate dependent files.

2002-03-05  Jim Meyering  <[e-mail]>

	* Makefile.am (EXTRA_DIST): Add config/config.rpath.

2002-03-04  Jim Meyering  <[e-mail]>

	* Makefile.maint (tgz-size): Also handle a suffix of `K', since
	the sizes in the output of `du -h' now look like `29K'

2002-03-03  Jim Meyering  <[e-mail]>

	* Version 4.1.6.

2002-03-03  Paul Eggert  <[e-mail]>

	Make cp -r equivalent to cp -R.  Add a new cp option --copy-contents
	for people who want to emulate the traditional (and rarely desirable)
	cp -r behavior.

	* src/cp.c (COPY_CONTENTS_OPTION): New enum value.
	(long_opts): Add --copy-contents.
	(usage): Describe new behavior.  Sort options.
	(main): Implement new behavior.  Remove diagnostics for -a and -r;
	no longer needed.
	* src/copy.c (copy_internal): Remove -r warning; no longer needed.

	* NEWS: Document this.

2002-03-02  Jim Meyering  <[e-mail]>

	* src/copy.c (copy_internal): For each symlink copied by cp -r,
	issue a warning that `cp -r' is not portable.

	* src/cp.c (main): Revert change of 2001-12-29.  With this change,
	cp -r once again preserves symlinks.
	(usage): Document the original (now-restored) behavior.
	* tests/cp/r-vs-symlink: Reflect changed semantics of cp's -r option.

	* src/cp.c (main): Warn when -r is specified before --archive (-a).
	* src/cp.c (main): Fail when -r is specified after --archive (-a)
	on the command line.

	* src/copy.c (copy_reg): Detect abuse of a race condition
	whereby an unprivileged user could gain read access to otherwise-
	inaccessible files when root uses cp or mv to copy a hierarchy
	belonging to that user.

2002-02-27  Paul Eggert  <[e-mail]>

	* src/ls.c (decode_switches, usage): Add --time-style=+FORMAT.
	* doc/coreutils.texi (Formatting file timestamps): Document it.

2002-02-25  Paul Eggert  <[e-mail]>

	Add ACL support to 'ls' for HP-UX and Unixware, and try to
	establish a framework for adding it for other hosts.
	This builds on a suggestion of Andreas Gruenbacher.

	* lib/Makefile.am (libfetish_a_SOURCES): Add acl.h, acl.c.
	* lib/acl.h, lib/acl.c, m4/acl.m4: New files.
	* m4/jm-macros.m4 (jm_MACROS): Require AC_FUNC_ACL.
	Do not check for acl or sys/acl.h, as AC_FUNC_ACL does that now.
	* src/ls.c: Include "acl.h" rather than <sys/acl.h>.
	(USE_ACL): Remove; replaced by HAVE_ACL everywhere.
	(gobble_file): Use file_has_acl rather than doing it ourselves.

2002-02-20  Jim Meyering  <[e-mail]>

	* src/touch.c: Include posixver.h.
	(usage): Document only the intersection of the old and new behaviors,
	to encourage portability.
	(main): Use `posix2_version ()' in place of POSIX2_VERSION.

2002-02-17  Jim Meyering  <[e-mail]>

	* ABOUT-NLS, intl/*: Update to Gettext 0.11.
	* INSTALL: Update to Autoconf 2.52h.

	* src/Makefile.am (datadir): Use `share' in place of @DATADIRNAME@,
	per Gettext-0.11.
	(LDADD): Use @LIBINTL@ instead of @INTLLIBS@, per Gettext-0.11.

	* configure.ac (AC_CONFIG_AUX_DIR): New macro invocation.
	(ALL_LINGUAS): Remove: now in po/LINGUAS as per Gettext 0.11.

	* config: New subdirectory, containing the following files from .:
	config.guess, config.sub, depcomp, missing, install-sh, mkinstalldirs.
	Move the following files here from doc: texinfo.tex, mdate-sh.

2002-02-16  Jim Meyering  <[e-mail]>

	* tests/ls/infloop: Use `head -n 7', not `head -7'.
	* tests/rm/hash: Likewise.

2002-02-10  Jim Meyering  <[e-mail]>

	* configure.in (ALL_LINGUAS): Add Hungarian (hu).

2002-02-02  Jim Meyering  <[e-mail]>

	* src/shred.c: (VERBOSE_UPDATE): Update every 5 seconds, not every 10.
	(wipename): Quote file names only when necessary.
	(main): Copy quoted string into malloc'd storage so it doesn't
	get clobbered when using -u and --verbose.

	Minor clean-up.
	* src/shred.c:
	Use `NULL' rather than `(time_t *) 0'.
	(dopass): Use STREQ in place of strcmp.
	Add parentheses around use of nested ternary operator.

2002-01-15  Paul Eggert  <[e-mail]>

	* src/shred.c (VERBOSE_UPDATE): Now counts seconds, not bytes.

	(dopass): If verbose, output a line every VERBOSE_UPDATE seconds,
	and suppress duplicate output lines.  Output a percentage as well
	as a count of bytes.

	Also, fix comment/code typo regarding how many bytes have been
	written; this typo was harmless before, but is no longer harmless with
	the above change in effect.

2002-02-02  Jim Meyering  <[e-mail]>

	* src/remove.c (rm): Add a comment.

2002-01-28  Jim Meyering  <[e-mail]>

	* Makefile.am (AUTOMAKE_OPTIONS): Require automake-1.5d.
	* configure.ac (AM_INIT_AUTOMAKE): Use zero-arg form of this macro.

2002-01-21  Jim Meyering  <[e-mail]>

	* po/POTFILES.in: Add lib/xmemcoll.c

	* src/chown-core.c: Don't include "xalloc.h", as system.h already
	does that via sys2.h.
	* src/ls.c: Likewise.
	* src/shred.c: Likewise.

2002-01-20  Paul Eggert  <[e-mail]>

	* src/ls.c: Avoid undefined behavior when strcoll fails,
	by resorting the directory with strcmp instead.

	Include <setjmp.h>.
	Include "quote.h".
	(compare_atime, rev_cmp_atime, compare_ctime, rev_cmp_ctime,
	compare_mtime, rev_cmp_mtime, compare_size, rev_comp_size,
	compare_name, rev_cmp_name, compare_extension, rev_cmp_extension,
	compare_version, rev_compare_version): Move before use, so that
	we can remove the forward declaration.  Reimplement in terms of
	the new functions described below, using xstrcoll instead of strcoll.
	(failed_strcoll): New var.
	(xstrcoll): New function.
	(V): New type.
	(cmp_ctime, compstr_ctime, rev_str_ctime): New functions.
	(cmp_mtime, compstr_mtime, rev_str_mtime): Likewise.
	(cmp_atime, compstr_atime, rev_str_atime): Likewise.
	(cmp_size, compstr_size, rev_str_size): Likewise.
	(cmp_version): Likewise.
	(cmp_name, compstr_name, rev_str_name): Likewise.
	(cmp_extension, compstr_extension, rev_str_extension): Likewise.
	(sort_files): Use prototype for internal function var.
	If the strcoll-based comparison fails, fall back on a strcmp-based one.

2002-01-19  Jim Meyering  <[e-mail]>

	Ensure that the two version numbers in configure.ac remain in sync.
	* Makefile.maint (local-check): Depend on ac-check.
	(ac_p_pkg, AC_INIT_PKG): Define.
	(ac_p_ver, AC_INIT_VER): Define.
	(ac-check): New rule.

2002-01-19  Jim Meyering  <[e-mail]>

	* configure.ac: Remove code that set LIBOBJS in support of ansi2knr.
	The latest version of autoconf objected to it, and besides, I don't
	care too much about K&R support these days.

2002-01-14  Paul Eggert  <[e-mail]>

	* src/touch.c (main): Issue a warning for obsolete usage, unless
	POSIXLY_CORRECT.

2002-01-14  Paul Eggert  <[e-mail]>

	Add support for POSIX 1003.1-2001, which requires removal for
	support of the obsolete `touch [-acm] MMDDhhmm[YY] FILE...' syntax.

	* NEWS: Document this.
	* src/touch.c (usage, main): Implement this.

2002-01-12  Jim Meyering  <[e-mail]>

	Avoid giving a misleading diagnostic in some unusual cases.
	Instead, give one that makes sense.

	* src/copy.c (copy_reg): Don't treat errno==ENOENT as a special case.
	(same_file_ok): Detect a case that would have lead to the errno==ENOENT
	condition above (and a misleading diagnostic), and return 0 so we give
	a diagnostic about the source and destination being the same file.
	(copy_internal): Use an explicit test for errno==EXDEV to detect
	that rename has failed because source and destination are on
	different devices.  This reverts part of a change from 1997-12-13,
	and is to avoid letting a race condition evoke a bogus diagnostic.
	Note that while POSIX has encouraged the errno==EXDEV test for
	years, it was inadequate back in 1997.	I'm hoping that many
	more systems have conforming support these days.
	Reported by Michael Gaughen <[e-mail]>

	* src/shred.c (usage): Also mention Ext3.
	Suggestion from G鰎an Uddeborg.

2002-01-06  Bruno Haible  <[e-mail]>

	* src/ls.c (long_time_format): Extend translator comments.

2002-01-05  Jim Meyering  <[e-mail]>

	* Version 4.1.5.

2001-12-29  Jim Meyering  <[e-mail]>

	* src/cp.c (main): With -r, always dereference symlinks.
	Reported by Christian Harkort.  Patch by Chris J. Bednar.

	* tests/cp/r-vs-symlink: New file to test for the above fix.
	* tests/cp/Makefile.am (TESTS): Add r-vs-symlink.

2001-12-21  Jim Meyering  <[e-mail]>

	* src/shred.c [!HAVE_CONFIG_H]: Remove cpp block that duplicated
	code in lib/ in order to facilitate compiling this program without
	config.h.

2001-12-19  Paul Eggert  <[e-mail]>

	* src/shred.c: Add FSF copyright notice.

2001-12-18  Paul Eggert  <[e-mail]>

	Use notation compatible with SI and with IEC 60027-2.
	For example, --block-size=1MB now means --block-size=1000000,
	whereas --block-size=1MiB now means --block-size=1048576.
	A trailing `B' now means decimal, not binary; this is a silent change.
	-H or --si now outputs the trailing 'B', for consistency with this.
	Programs now output trailing 'K' (not 'k') to mean 1024.
	New df, du short option -B is short for --block-size.
	You can omit an integer `1' before a block size suffix,
	e.g. `df -BG' is equivalent to `df -B 1G' and to `df --block-size=1G'.

	* NEWS, doc/coreutils.texi: Document this.  Remove documentation
	for obsolescent constructs MD, --kilobytes, -m or --megabytes.

	* src/dd.c (usage, parse_integer): Prefer K to k for 1024.
	* src/shred.c (usage, main): Likewise.

	* src/shred.c (xstrtoumax): If there is no number but there
	is a valid suffix, assume 1.  "MB" now means decimal, "MiB" binary.
	Accept 'K' as well as 'k'.

	* src/dd.c (usage): MD -> MB for decimal.

	* src/df.c (BLOCK_SIZE_OPTION): Remove; no longer needed now that
	we have 'B'.
	(long_options, usage, main): Add -B.
	(usage): Deprecate --kilobytes, -m, --megabytes.
	Document size suffixes.
	* src/du.c: Likewise.
	* src/ls.c (usage): Deprecate --kilobytes.  Document size suffixes.

	* src/df.c (print_header, show_dev): Enlarge column widths for
	trailing "B".

2001-12-17  Jim Meyering  <[e-mail]>

	* Makefile.maint (real_dir): Remove unused variable.
	(url_dir_list): Don't set define it here, but...
	* Makefile.cfg (url_dir_list): ...define it here instead.
	(hosts, a_host, b_host): Remove now-unused variables.
	(alpha_subdir, a_url_dir, b_url_dir): Remove now-unused variables.

2001-12-15  Jim Meyering  <[e-mail]>

	* Version 4.1.4.

	* tests/touch/fail-diag: Also accept SunOS4's `Not owner' diagnostic.
	Reported by Volker Borchert.

	* tests/help-version: Fail also if ./$i --version fails.
	Run each --help and --version test with a few different settings
	of LC_MESSAGES.  Prompted by a report from Nelson Beebe.

2001-12-11  Jim Meyering  <[e-mail]>

	Include the word `fail' in some diagnostics to make it clearer
	that they indicate a failure.
	* src/chgrp.c (main): s/getting attributes/failed to get attributes/.
	* src/chmod.c (change_file_mode, main): Likewise.
	* src/chown-core.c (change_file_owner): Likewise.
	* src/chown.c (main): Likewise.
	* src/cp.c (re_protect): Likewise.
	* src/touch.c (touch, main):Likewise.
	Suggestion from Karl Berry.

2001-12-10  Jim Meyering  <[e-mail]>

	* src/dd.c (buggy_lseek_support): Remove function.
	(skip_via_lseek) [__linux__]: New function.
	(skip): Use skip_via_lseek, not buggy_lseek_support.
	Based on an outline from Paul Eggert.

2001-12-09  Jim Meyering  <[e-mail]>

	* configure.in (ALL_LINGUAS): Add Estonian (et).

2001-12-08  Jim Meyering  <[e-mail]>

	* Makefile.cfg (wget_files): Remove ansi2knr.c, since it's
	no longer available at that location.

2001-12-04  Jim Meyering  <[e-mail]>

	* tests/chgrp/basic: Don't use diff's -u option.  It's not portable.
	Besides, with GNU diff one can use the DIFF_OPTIONS envvar.
	* tests/ls/no-arg: Likewise.
	* tests/ls/recursive: Likewise.
	* tests/ls/rt-1: Likewise.

2001-12-02  Jim Meyering  <[e-mail]>