changelo.g

HLPDK V10.0+ System Extension Library

	before dereferencing the argv vector.

Wed Jun 20 01:46:09 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cat.c (cat): If FIONREAD is available, only use it if it is
	supported by the filesystem that the file is on.

	* ln.c (do_link): Take out code to give an error if source and
	dest are the same file.  The dubious usefulness of the special
	case to prevent 'ln x x' from removing 'x' (ln -i can be used
	instead) is not worth preventing 'ln x y' from failing the
	second time in a row, and appears to contradict POSIX anyway.

Mon Jun 18 02:48:17 1990  David J. MacKenzie  (djm at apple-gunkies)

	* ls.c (print_file_name_and_frills,
	length_of_file_name_and_frills, print_long_format):
	Allow 6 digits for i-number, not 5.

Sun Jun 17 00:09:23 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* install.c (install_dir): Don't check whether "" or the root
	directory exists (the former fails on some systems).

	* system.h: Make inclusion of sys/file.h conditional on USG
	and _POSIX_SOURCE, not DIRENT.

	* chmod.c (change_dir_mode): Use xrealloc instead of free and
	xmalloc in case malloc already left extra room.
	(xrealloc): New function.

	* rm.c (clear_directory): Prevent buffer overruns.
	More efficient string handling.  Don't skip rest of directory
	if continuing after finding circular inode.
	(xrealloc): New function.

Sat Jun 16 01:45:42 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* argmatch.c (invalid_arg): Change order in which the items
	are printed. 

	* ls.c: Add +tabsize (-T) option.

Fri Jun 15 23:40:55 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* dd.c (scanargs): For ibs and obs, set C_HARDWAY.
	(copy): Use different buffers only if C_HARDWAY, not if
	blocksizes are the same, to ensure constant output block sizes.

Wed Jun 13 23:56:20 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* savedir.c: New file from code in chmod.c, modified to
	prevent buffer overruns.
	* chmod.c (change_dir_mode), cp.c (copy_dir), du.c
	(count_entry): Use savedir.

Thu Jun  7 03:52:02 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* system.h (ST_BLKSIZE) [!STBLOCKS_MISSING]: If st_blksize is
	0 (as on pipe reads on some systems), use BSIZE instead.
	Define BSIZE as DEV_BSIZE if necessary.

	* Makefile, system.h, fileblocks.c: Use STBLOCKS_MISSING to
	control whether st_blksize and st_blocks are used.
	* Makefile, system.h, backupfile.c: Use DIRENT to control
	whether <dirent.h> is used.

Sun Jun  3 20:26:19 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cat.c (main): Add a variable to control whether the check
	for input file == output file is made, because no values of
	st_dev and st_ino should be assumed to be available for this
	purpose.  Only do the check for regular files.

	* tac.c: Use bcopy instead of memcpy.

Wed May 30 15:34:47 EDT 1990 Jay Fenlason ([e-mail])

	* cut.c (main)  Don't dereference 0 while parsing args.

Thu May 31 00:55:36 1990  David J. MacKenzie  (djm at apple-gunkies)

	* fileblocks.c: New file.
	* du.c (blocks_to_kb): Replace with convert_blocks macro.
	(main): Recognize new -k option.
	(usage): Document it.
	* ls.c (nblocks): Replace with convert_blocks macro.
	* system.h (ST_BLKSIZE) [USG]: Use BSIZE from sys/param.h instead of
	having the user define BLKSIZE.
	(ST_NBLOCKS) [USG]: Use st_blocks from fileblocks.c.

	* head.c: Use longs instead of ints for file offsets, for 16
	bit machines.

	* cat.c, chmod.c, cmp.c, cp.c, cp.h, create.c, dd.c, dirlib.c,
	du.c, head.c, system.h, backupfile.c, ln.c, ls.c, install.c,
	mkdir.c, mkfifo.c, modechange.c, mv.c, mv_dir.c, rm.c,
	rmdir.c, tail.c, tac.c: Optionally use ANSI C and POSIX header files.

Wed May 23 00:40:39 1990  David J. MacKenzie  (djm at apple-gunkies)

	* argmatch.c: New file, taken from ls.c.
	* getversion.c (get_version): Use argmatch, to allow
	abbreviations.  Default backup type is existing_numbered.
	* mv.c (main), ln.c (main), cp.c (main): Only make backups if
	-b (+backup) is given.  If envar SIMPLE_BACKUP_SUFFIX is set,
	use it as a default instead of `~'.
	* mv.c (usage), ln.c (usage), cp-aux.c (usage): Update messages.

Tue May 22 00:56:51 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* install.c: New file (from ../bin-src).

	* cmp.c: Change some ints to longs for 16 bit machines.
	(bcmp_cnt): Make char-pointer counting slightly simpler.

	* dd.c (copy): Don't count completely failed writes as partial
	writes.  Make buffers unsigned.  If blocking or unblocking,
	pad final partial buffer if necessary.

	* getversion.c: New file.
	* mv.c (main), cp.c (main), ln.c (main): Control backup types
	with getenv ("VERSION_CONTROL") and +version-control or -V.

	* cp.c (yesno), mv.c (yesno), ln.c (yesno): Stop reading if
	EOF reached as well as at newline.

	* backupfile.[ch]: Rename var `version_control' to `backup_type'.

Sat May 19 23:38:46 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* touch.c: Change some error messages.  Include "getopt.h".

Sat May 19 00:16:50 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* mv.c (main), ln.c (main), cp.c (main): Revise
	backup-creation options.
	* mv.c (usage), ln.c (usage), cp-aux.c (usage): Revise messages.

	* chmod.c (describe_change): Use mode_string instead of
	filemodestring. 

	* cp.c (main): Recognize new options for making backups.
	* cp.c (copy): Make backups if requested.  Fix typo.
	* cp-aux.c (usage): Update message.

	* mv.c, cp.c: Remove code to conditionally use utimes instead
	of utime, since the extra resolution of utimes was not being
	used, the emulation overhead is probably insignificant,
	and utime is a standard function.

	* cp-hash.c: Fix up comments.

Fri May 18 23:06:23 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* mv.c (do_move): Only make backup if dest file exists.
	Don't continue moving file if dest can't be backed up.
	* ln.c (do_link): Don't try to unlink dest if it was backed up.
	Don't continue moving file if dest can't be backed up.

	* system.h: Make SIGTYPE default to void if not defined.

	* modechange.[ch]: Rename struct and external functions to start
	with 'mode_'.
	* modechange.c (oatoi): Make static.
	(mode_compile): Take an additional arg indicating which
	symbolic operators should be affected by the umask.
	* modechange.h: Add defines for mode_compile arg mask.
	If __STDC__, use prototypes.
	* chmod.c, mkdir.c, mkfifo.c, create.c: Account for above changes.

Tue May 15 16:17:34 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* dd.c (copy): Quit with nonzero status if final write fails.

Mon May 14 14:34:10 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* tac.c, regex.c, regex.h: New files.

	* dd.c: Make translation tables unsigned.
	(main): Give `input_file' and `output_file' nonzero values for
	stdin and stdout. 
	(parse_conversion): Set new global vars 'space_character' and
	'newline_character' to correct values when translating to EBCDIC
	(either flavor).
	(copy): Use 'space_character' and 'newline_character' instead
	of hardcoded ASCII values.  Ignore attempts to seek on output pipe,
	socket, or fifo.  If possible, seek instead of reading to skip
	initial input records.  Sync with `space_character' instead of
	nulls, for POSIX.

	* cp.c (copy_reg): Compare lseek values as longs, not ints.

Sat May 12 01:16:42 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cp-hash (remember_created): Return error status instead of
	fatal error. 
	* cp.c (copy): Change caller.
	(do_copy, copy_reg): Return error status instead of fatal error.

	* cat.c (main): Allow input file to be output file for devices
	(ttys, etc.).  Check whether input file is output file when
	reading standard input.  Print any error messages for standard
	input. 

	* cmp.c (bcmp_cnt): Handle int comparisons correctly on 16 bit
	machines as well as 32 bit ones.
	* cmp.c, tail.c, ls.c, cp.c, du.c: Use longs instead of ints
	for file offsets. 

	* Move rename emulation from mv.c to dirlib.c so other
	programs can use it.
	* mv.c, ln.c (main): Recognize new options for making backups.
	* mv.c (do_move), ln.c (do_link): Make backups if requested.
	* mv.c, ln.c (usage): Update message.
	* backupfile.c, backupfile.h: New files.

	* cp.h: Ifdef out decl of umask because of SunOS 4.1 (POSIX) conflict.

	* Define all `main' functions as returning void.

Fri May 11 02:11:03 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* ln.c, mv.c, rm.c, rmdir.c, create.c, chmod.c: Change some
	error messages. 

	* cmp.c: Fix some exit statuses for POSIX.

	* du.c, cmp.c, cat.c, cp-aux.c (error): Function removed.
	Change callers to use error.c version.
	* cp.c (copy, do_copy, copy_dir): Return an error status.
	* ls.c (error, fatal, perror_with_name): Functions removed.
	Change callers to use error.c.

Tue May  8 03:41:42 1990  David J. MacKenzie  (djm at abyss)

	* tac.c: Use regular expressions as the record boundaries.
	Give better error messages.
	Reformat code and make it more readable.
	(main): Use getopt_long to parse options.
	(tac_stdin): Do not make a temporary file if standard input
	is a file.
	(tac_file): New function.
	(tac): Take an open file desc as an arg.
	(output): Rewrite to use its own efficient buffering.
	(xmalloc, xrealloc, xwrite): New functions.

Sat May  5 23:46:48 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* ln.c (do_link): Don't allow trying to link a file to itself,
	because the source file would be removed if they are the same
	directory entry, and also for consistency with mv and cp.

Fri May  4 13:42:53 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cp.c (copy_reg): Only write a null to the end of the file if
	the end of the file was sparse.

	* ls.c (print_name_with_quoting): Make the char to print
	unsigned to prevent sign extension problems with -b.

Fri Apr 20 13:52:15 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* Version 1.2 released.

Wed Apr 18 14:36:15 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* Makefile: Use chsize for ftruncate on Xenix.

	* cp.c (copy): Remove broken code that attempted to
	substitute for ftruncate on systems missing it.

Mon Apr 16 13:58:01 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cp-aux.c (usage): Fix mistake in message.

	* Version 1.1 released.

Sat Apr 14 17:23:11 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* ls.c (main): Don't remove leading path from program_name.
	(basename): Function removed.
	(length_of_file_name_and_frills): Don't add 1 for type indicator
	for block and character special files. 

Thu Apr 12 19:50:15 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* Makefile: Suggest using -DBLKSIZE=512 instead of 1024 for USG.

	* dd.c (copy): Print copying statistics when exiting because
	of a read or seek error.
	(interrupt_handler): New function.
	(main): Trap SIGINT to run interrupt_handler, for POSIX.

Tue Apr 10 01:09:38 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* chmod.c (change_file_mode): Don't change the mode of
	symbolic links.

Mon Apr  9 13:30:00 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* modechange.c (compile_mode): Return an error if an octal
	number argument is too large.

Sun Apr  8 20:33:20 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* dd.c: Use `error' instead of `fatal' and `pfatal_with_name',
	for greater control of the message format.
	* head.c, tail.c: Use `error' instead of `fatal_perror' and
	`nonfatal_perror'.  Remove some unnecessary info from messages.
	* chmod.c, create.c, ln.c, mkdir.c, mkfifo.c, mv.c, mv_dir.c,
	rm.c, rmdir.c: Remove definition of `error'.
	* error.c: New file created from code in mv.c.
	* Makefile: Link the above programs with error.o.

	* ln.c (do_link): Use eaccess_stat to determine writability.
	* mv.c (do_move): Ditto.
	* rm.c (remove_file): Ditto.
	(remove_dir): Use eaccess_stat to determine readability and
	searchability.  Move initial interactive query here from
	clear_directory. 
	* Makefile: Link ln, mv, and rm with eaccess.o.

Sat Apr  7 11:47:52 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* Makefile: Link cp with eaccess.o.
	* eaccess.c: New file adapted from code in cp.c and cp-aux.c.
	* cp.c (copy): Use eaccess_stat to determine writability.
	Consider a file unwritable by root if it has no permissions.
	(main): Remove groups initialization code.
	* cp-aux.c (member): Function deleted.

	* cp.c (copy): Temporarily change the mode of directories if
	necessary to overwrite them when running recursively.
	Consider a directory to be non-overwritable if it lacks write
	permission as well as if it lacks execute permission.

	* cat.c (main), cp.c (copy_reg): Don't check error from close,
	because we know the arg is good and so it cannot fail.

	* rm.c, mv.c, mv_dir.c, chmod.c, create.c, ln.c: Remove some
	irrelevant or redundant information from error messages.

Fri Apr  6 15:20:45 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cp.c (copy): Only change mode of regular files and directories;
	others are already correct.

Thu Apr  5 04:31:56 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* dd.c: Remove the vars that are set by command line options
	from a useless struct and give them more meaningful names.

Mon Apr  2 02:58:34 1990  David J. MacKenzie  (djm at spike.ai.mit.edu)

	* cp.c (main): Use NGROUPS from sys/param.h to determine
	whether BSD multiple groups are supported and how large to
	make the array.
	* Makefile: Remove references to GETGROUPS_MISSING.

Sun Apr  1 18:53:57 1990  David J. MacKenzie  (djm at spike.ai.mit.edu)

	* cp.c (main): Always initialize group info.

Sat Mar 31 22:29:57 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* mkfifo.c, create.c, mv_dir.c: New files.
	* Makefile: Add rules for them.
	* mv.c [RENAME_MISSING] (rename): To rename directories, run
	setuid root mv_dir program. 

Tue Mar 20 14:28:25 1990  David J. MacKenzie  (djm at pogo.ai.mit.edu)

	* touch.c: Remove POSIX_COMPAT ifdef since there is no reason
	to disable the GNU extensions.
	(main): Set new global var `program_name'.
	(error): Replace with more versatile version.
	Global: Change calls to fprintf and error to use the new error.
	(main): Initialize global variables.  Don't bother making
	temporary copy of arg to -d.  Don't ignore any files named on
	the command line if -i is given.
	(usage): Don't take an arg.  Use `program_name' instead of
	hardcoded name.
	(touch): In utime emulation for BSD, ftruncate the file to its
	original size so empty files stay empty after being touched.

Sun Mar 18 01:02:39 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* ln.c (strip_trailing_slashes): New function.
	(main, do_link): Call it.

	* cp-aux.c (strip_trailing_slashes): New function.
	* cp.c (do_copy): Call it.
	* cp.h: Declare it.

	* mv.c (strip_trailing_slashes): New function.
	(main, movefile): Call it.

Sat Mar 17 21:45:35 1990  David J. MacKenzie  (djm at albert.ai.mit.edu)

	* cp-aux.c, cp.h: Rename user_confirm_overwriting to yesno and
	don't have it print a prompt, so it can be used in several
	places. 

	* cp.c (do_copy): Change an error message to resemble mv's.