changelog

P2P NAP的C实现 P2P在网络应用中越来越流行

	"Transport endpoint is not connected" in certain circumstances.
	Replaced all fork/connect combinations with non-blocking
	i/o. Thanks to Mike Castle for tracking down this bug.
	(2001/11/05) PS1 - added support for sharing Ogg Vorbis files.
	(2001/10/17) PS1, JJL - added ability to share non-music
	files. Added "sharetypes" user variable which is a
	semicolon-separated list of case-insensitive file name extensions
	(example: "jpg:gif").  The value "*" is allowed as a special
	"extension" to match all files. Files in the upload directory that
	match the given extensions are shared, in *addition* to valid
	mp3's. Mp3's are always shared and do not need to be listed in
	sharetypes.  Also note that file sharing is decided at the time
	the library is built, not at the time the file is requested. Thus,
	changes to "sharetypes" do not take effect until the library is
	rebuilt.
	(2001/10/13) PS1 - fixed bug where foreign characters were not
	escaped on browse result screen.
	(2001/09/17) PS1 - fixed memory leaks: status in sscr.c; result of
	form_toks in parseoutn; result of home_file in drebuild, dupdate,
	setup_configdir, main, login, makeact, sfreq; result of glistn in
	save_hotlist, dunnotify; result of getline in open_url,
	set_defaults_interactive, checknv, icmpin, icmperr; result of
	msprintf in ichat, login.
	(2001/09/16) PS1 - added "memwatch" function in order to debug
	memory leaks. This is only compiled in when the -DMEMWATCH option
	is given to gcc.
	(2001/09/16) PS1 - added key 'D' to sort by directory, rather than
	by song name, on the search result screen.
	(2001/09/16) PS1 - modified napping to output an empty line just
	before quitting, for the benefit of cygwin, which can't apparently
	detect the end of file.
	(2001/08/31) PS1 - modified 'drop suid' code in napping.c to do it
	precisely the same way it's done in ping(8).
        (2001/08/30) RPB - made nap FreeBSD compatible. This requires
	minimal changes in the inclusion of header files, and works on
	FreeBSD 4.4-RC (and most likely 4.x and 5.x).
	
v1.4.6 2001/08/30
	(2001/08/29) PS1 - fixed bug where remotely queued items were
	periodically queued. Also, changed things so that we try at most
	one remotely queued item of the same user at a time.
	(2001/08/29) PS1 - added estimated time of arrival (e.g. 1h 25m
	17s) to /pdown and /pup.
	(2001/08/29) PS1 - added question about firewall to interactive
	user setup.
	(2001/08/29) PS1 - waiting for child process to exit after killing
	it in connect_t - this hopefully solves a problem where sometimes,
	a single "connection timed out" caused all subsequent connections
	to time out immediately.
	(2001/08/29) PS1 - fixed a bug where CTRL-C, when pressed while no
	command was executing, would interrupt a later command.
	(2001/08/29) PS1 - eliminated list of "standard servers", since
	nap no longer works with these servers.
	(2001/08/29) PS1 - added "napping" user variable to set an
	alternative name and/or absolute pathname for the napping
	application.
	(2001/08/28) PS1 - added "noping" user variable which turns off
	pings by default. Pinging can be toggled on and off by giving the
	"-p" flag for the /search command.
	(2001/08/28) PS1 - modified nap and napping to work together.
	(2001/08/28) SZ1 - added separate program "napping" for getting
	ping values. The point is that root privileges are needed for
	opening a raw network socket for ping; but nap can't be made suid
	(it would be unsafe). On the other hand, the separate napping
	program can be safely made suid, because it drops root privileges
	immediately after opening the socket.
	(2001/08/28) PS1 - escape weird characters in filenames on search
	result screen.
	(2001/08/27) PS1 - added "--transparent" option which will cause
	the terminal's default background to shine through instead of
	painting it black. This will only look good if the default
	background is dark.
	(2001/08/26) PS1 - added global configuration file (default:
	/etc/naprc) which is read *after* the user's configuration file
	(however, values already set on the command line or in the user's
	config file are not overwritten). The name of this file is given
	by the user variable "globalconfig".
	(2001/08/26) PS1 - made library filename configurable.
	(2001/08/26) PS1 - rewrote library building code to avoid infinite
	symlink loops.
	(2001/08/26) PS1 - added connection() function which limits the
	connection speed a user can claim when she has limited the upload
	bandwidth.
	(2001/08/26) PS1 - added configurable bandwidth limits.
	(2001/08/26) PS1 - removed info.maxuploads, info.conn, and info.d
	from nap.h. Added optional "numeric" hardwired lvalue to user
	variables.
	(2001/08/25) PS1 - changed interface of callback functions
	(cur->func) in scheck.c:sockfunc. These functions now always
	return 1; they must call delsock themselves.
	(2001/08/25) PS1 - removed unused files exp.c and exp.h
	(2001/08/25) PS1 - fixed plurals in status line
	(2001/07/19) JP1 - patch #442669; check for a divide by 0 in VBR
	length
	(2001/07/17) SP1 - added a filter to /pdown command to selectively
	list downloading, queued, failed, and successful items [d/q/f/s].
	(2001/07/12) MDR - patch #440846; fixes broken Ctrl-W behavior,
	which prevented multiple Ctrl-W keystrokes from deleting more than
	one word.
	(2001/07/12) MDR - patch #440842; causes Ctrl-L to redraw the
	screen when viewing search results.
	(2001/07/09) NBL - correctly print debugging output for packets of
	length 0.
	(2001/07/09) NBL - added support for direct browsing.
	(2001/07/02) PS1 - corrected a bug that printed the dates
	incorrectly in logallfile.
	
v1.4.5 2001/07/01
        (2001/07/01) PS1 - got rid of usercmds.c	
	(2001/07/01) PS1 - binary distributions are now statically
	linked to avoid dependencies on specific shared library versions. 
	(2001/06/30) PS1 - changed implementation of checknv().
	(2001/06/30) PS1 - made OpenNap servers the default. Server list
	will be read from napigator.com on startup. Added /getservers
	command. Added "metaserver", "metatimeout", and "nometa" user
	variables.
	(2001/06/30) PS1 - close open socket after checking for news.
	(2001/06/29) PS1 - now report full file name if file cannot be
	opened in incomplete directory.
	(2001/06/28) PS1 - changed default value of connecttimeout to 5
	seconds. It can still be disabled by setting connecttimeout to 0.
	(2001/06/28) PS1 - automatically rename .nap/nap.conf as
	.nap/napconf, if the former file exists. This is to remove an
	incompatibility with former debian distributions.
	(2001/06/28) PS1 - added "announcepongs" user variable. If not
	set, PONG packets will be silently ignored.
	(2001/06/28) PS1 - renamed cmds.h:basename as ud_basename, to
	avoid potential conflict with strings.h.
	(2001/06/27) PAF - fixed a segfault during startup (while checking
	for new releases).
	(2001/06/08) MDR - fixed bug in firewall mode where upload state
	was inadvertently left in state CONNECTING1. This caused ongoing
	uploads to time out after 90 seconds.
	(2001/06/02) PS1 - started removing arbitrary limits on length of
	strings.
	(2001/05/31) SP1 - contributed shell script for getting server
	list from www.napigator.com, and an alias for reading it into nap.
	(2001/05/30) PS1 - changed the syntax of the "incomplete tag" in
	preparation of resumes.
	(2001/05/30) PS1 - spun off scmds.c from cmds.c.
	(2001/05/30) PS1 - added more comments to config file.
	(2001/05/30) PS1 - added "cursorfollowsscreen" user variable to
	configure behavior of "PgUp" and "PgDn" keys on search result
	screen.
	(2001/05/30) PS1 - allow CTRL-C to interrupt /reconnect command.
	(2001/05/30) SP1, PS1 - changed /reconnect command to cycle to the
	next server on the list, rather than start from the beginning of
	the list.
	(2001/05/30) PS1 - fixed a string allocation bug in dosend().
	(2001/05/29) PS1 - added "sdefaults" user variable for
	user-configurable default appearance of the search screen.
	(2001/05/29) PS1 - made state of the search result screen
	persistent while switching between screens.
        (2001/05/29) PS1 - fixed bug where files could not be moved from
	incomplete directory to download directory if these were on
	different file systems.
        (2001/05/24) NBL - improved VBR support to recognize Xing headers.
        (2001/05/15) PS1 - allow ~/ notation in /loadconfig, /loadalias,
	/loadchannels, /loadhandler, and similarly /saveconfig etc.
	(2001/05/15) PS1 - changed /set, /alias, /ban, /block, /cban,
	/join, /handler, /ignore, /notify, and /server commands to behave
	like /pvars, /aliaslist, /banlist, /blocklist, /cbanlist, /clist2,
	/handlerlist, /ignorelist, /hotlist, and /serv when no arguments
	are given. This removes the need for the latter commands, but we
	keep them for compatibility. Also, /set, /alias, and /handler will
	print the current value when just one argument is given.
        (2001/05/15) PS1 - removed duplicate "removed turd" message.
        (2001/05/15) MG1 - fixed a bug in the command list which prevented
	the /retryall command from working.
	(2001/05/03) RK1 - fixed a segfault in mark_incomplete.
        (2001/04/28) NBL - added support for VBR (variable bit rate).
	(2001/04/27) PS1 - if no download path given, use $CWD by default
	as announced (and not $HOME as in ps9).
	(2001/04/27) PS1 - changed autoconf magic to link against ncurses
	or curses, but not both.
	(2001/04/27) PS1 - fixed appearance of horizontal and vertical
	lines for cygwin32.
	(2001/04/27) PS1 - replaced sys_errlist[] by strerror() for
	cygwin32 and Solaris compatibility.
	(2001/04/24) PS1 - eliminated ECANCELED for OpenBSD and cygwin32
	compatibility.

v1.4.4-ps9 2001/04/23
	(2001/04/23) SL1 - 'm' on search screen now also toggles between
	display in megabytes and bytes.
	(2001/04/23) SL1 - added -s flag to /search command to limit file
	size searched - this works on OpenNap servers and is ignored on
	Napster.
	(2001/04/23) PS1 - moved all nap config files under ~/.nap
	directory; automatically move some old config files to their new
	location automatically (for the next couple of releases).
	(2001/04/22) MDZ - added sample nap-session script.
	(2001/04/22) MDZ - added Debian info to userguide.html.
	(2001/04/22) MDZ - fixed some potential sprintf buffer overflows.
	(2001/04/22) MDZ - default upload, download, and incomplete
	directory names relative to the home directory, and allow "~/"
	syntax.
	(2001/04/22) MDZ - include time.h in event.c
	(2001/04/22) PS1 - removed non-functional /hup command.
	(2001/04/22) PS1 - added feature to specify multiple passwords and
	email addresses in config file.
	(2001/04/22) PS1 - cleaned up hotlist code.
	(2001/04/22) PS1 - fixed a bug where the incoming socket was not
	deleted when a download was deleted, causing bytes to spill.
	(2001/04/22) PS1 - added hook to request remotely queued item
	immediately as soon as a download from that user ends.
	(2001/04/22) PS1 - added /purgeup and /purge commands
	(2001/04/22) PS1 - improved the output of some commands such as
	/pvars.
	(2001/04/22) PS1 - deleted some unused code
	(2001/04/22) PS1 - overhauled upload state model to match the new
	download state model.
	(2001/04/21) PS1 - when download request times out because server
	did not send ack, re-send the request rather than stopping the
	download.
	(2001/04/21) PS1 - fixed status line display to include queued
	downloads
        (2001/04/21) PS1 - disabled messages about "too many uploads",
	unless variable "showtoomanyuploads" is set to 1.
	(2001/04/21) PS1 - added "help" feature to search screen.
	(2001/04/21) PS1 - added ability to "remotely queue" downloads if
	the remote user's upload limit is reached. The way this is
	implemented is by silently retrying the download every 15 seconds.
	(2001/04/21) PS1 - allow numeric ranges in /get to be separated by
	spaces or commas. Allow ranges in /ddown, /dup, /force.
        (2001/04/21) PS1 - print usage message when command misused.
	(2001/04/21) PS1 - made suffix ".incomplete" configurable
	(2001/04/21) PS1 - added "autopurge" feature
        (2001/04/21) PS1 - adjusted /tquit to wait for queued downloads as
	well as ongoing ones. Added /unquit commands.
        (2001/04/21) PS1 - major overhaul of download state model. We now
	have proper queueing and global and per-user download limits.
	Added /force command to start immediate download of queued item.
        (2001/04/20) PS1 - made changes to gnum and addsock.
	(2001/04/20) PS1 - reorganized wait for ping results using use
	timers rather than a special copy of sockfunc().
	(2001/04/20) PS1 - changed timer implementation to use arbitrary
	callback functions.
        (2001/04/20) PS1 - fixed a bug where recvpack did not always set
	errno on error.