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P2P NAP的C实现 P2P在网络应用中越来越流行

   May 6, 2004: Release 1.5.3.  This release is in response to the recent
   disappearance  of  the  "napigator"  meta-servers.   The  new  default
   meta-server is  http://naplist.com/servers.php.  For future reference,
   note that the  command line option '-ometaserver=URL' can  be `used to
   specify  an alternative  meta-server. This  will work  as long  as the
   format of the data served by the meta-server does not change. Also see
   scripts/get-servers.sh  for a  sample shell  script which  generates a
   server list.

   May  31,  2003:  Release 1.5.2. The main purpose of this release is to
   make  nap  compile under gcc 3.3; most users with precompiled versions
   probably  won't  need to update. A few minor bugs have been fixed. The
   only  new  feature  added  is a user variable "identity" for setting a
   fake  client  id  string, for fooling servers which refuse connections
   from  nap  clients  into believing that we're a different client. This
   release includes contributions by Massimo Dal Zotto and Peter Naulls.

   December 9, 2002: This  release fixes an incompatibility with Slavanap
   2.3.0, which  caused nap  to always return  "0 search  results". Also,
   some  new search options  were added:  it is  now possible  to specify
   keywords to  be excluded from a  search, to limit song  length, and to
   specify  file types  to  search  for. The  library  building code  was
   changed so that  not the entire library has to be  rebuilt each time a
   new  file  is added.  Also,  nap  no  longer calculates  checksums  by
   default, since  most servers  ignore them anyway.  The list  of shared
   files is  now sent to the  server in the  background, reducing waiting
   times. Filename masquerading was added; nap by default no longer sends
   the absolute pathname of your upload directory to the server. This can
   prevent your real username from  being announced to the world. The old
   behavior can  be emulated by  setting the "nomasq" user  variable. The
   problem  with  downloads  that  are  stuck at  "100%"  was  solved.  A
   --noserver option was  added for starting nap without  connecting to a
   server. A man  page was added. A bug was fixed  that caused crashes on
   the Linux for PowerPC platform. A bug that caused crashes on some .ogg
   files was fixed.  Auto-configuration  was tweaked to compile better on
   Solaris.  Support for  napster-style meta-servers  was  dropped, since
   these no longer seem to  exist. This release includes contributions by
   Zovier.  Massimo Dal  Zotto  and Michael  Pritchard  have helped  with
   debugging.

   March  2, 2002:  Release 1.5.0.   Nap just  got a  lot easier  to use,
   thanks to many useful new features added by Suzanne Skinner.  The most
   important  change is  the addition  of a  new  download/upload screen,
   accessible  via the "F3"  key.  On  this screen,  one can  monitor and
   manipulate downloads  and uploads with  a few convenient  key strokes.
   Other new  features include repeating timer  events, shortcut commands
   '/' and '  ' for entering commands or searches  from the search result
   screen  or  download/upload  screen,  no  more  annoying  prompts  for
   password  and email  (nap  will  simply guess  them),  and http  proxy
   support. A bug was fixed  where the "incomplete" suffix was not always
   removed from downloaded files,  and another where nap sometimes failed
   to create  the ~/.nap directory.  This  release includes contributions
   by Suzanne  Skinner, Steffen Pingel, Robin Blanchard,  and Massimo Dal
   Zotto.

   February  9,  2002: Release 1.4.9. This release fixes an annoying bug.
   The  bug  is  actually  in  WinMX2.6,  not in nap. The problem is that
   WinMX2.6  always  claims that its upload limit is 0, even when in fact
   it  is  not.  As  a  result, nap 1.4.8 decided not to "remotely queue"
   anything  from  a  WinMX  client.  This  release fixes the problem, by
   simply  remotely  queueing  anything,  even  when  the remote client's
   upload limit appears to be 0.

   January  28,  2002: Release 1.4.8. The main purpose of this release is
   to  adapt  to  the new location and format of Napigator's server list.
   The  release  also  contains  a  number of minor bug fixes and feature
   enhancements.  "Remote  queueing"  has been improved. A bug in sharing
   ogg  files  has  been  fixed.  /fup  and /fdown commands were added to
   finger  multiple users from the up- and download lists. Nap can now be
   caused  to  reconnect to a server by sending it a USR1 signal; this is
   sometimes  useful  in daemon mode. This release includes contributions
   by Mike Castle and Darren Embry.

   November  11,  2001:  Release  1.4.7.  This  release contains some new
   features,  notably  support  for  sharing  Ogg  Vorbis  files, and for
   sharing  non-music  files,  which more and more users were asking for.
   Also,  some  basic  networking  code  has been rewritten to make nap's
   network  connections more reliable. In particular, there was a problem
   with  downloads failing with the error message "transport endpoint not
   connected", which only seemed to happen on newer kernels and/or faster
   machines.  This  problem  has been fixed. Also, many memory leaks have
   been  fixed,  and  the  main  scroll  of  the  main  window  has  been
   re-implemented  to  be  more  memory  efficient.  A  new user variable
   "scrollsize"  was  added to limit the size of the main scroll; default
   is  10000 lines. User variables "autopurgeup" and "autopurgedown" were
   added  to  automatically  purge  stopped  items  from  the  upload and
   download  lists.  A  FreeBSD  distribution  was added, thanks to Robin
   Blanchard.  The  ability  to  sort search results by directory, rather
   than  filename,  was  added.  A bug which caused foreign characters to
   mess  up  the browse result screen was fixed. Some segmentation faults
   and  broken  pipes were eliminated. The way new releases are announced
   during  startup  was  improved. This release includes contributions by
   Jonathan Lupa. Mike Castle has helped debugging the networking code.

   August  30,  2001:  Release  1.4.6.  This release contains several new
   features  that  users  were requesting. Probably the most important is
   the  ability to limit the bandwidth for uploads and downloads. Also, a
   helper  application  called  "napping"  was added which assists nap in
   providing  ping  results.  The  point  is  that  sending  ping packets
   requires  root  privileges.  Unlike  nap itself, napping can be safely
   installed  suid  root, since it drops suid immediately after the first
   system  call.  Support  for  direct  ("client-to-client") browsing was
   added,  although its immediate usefulness is questionable, considering
   that most other clients do not support it.

   Other  changes:  The  name  and  location  of  the library file is now
   configurable,  which  some  users  had  requested  (particularly where
   several  users were sharing the same library file). Also, there is now
   an   optional  global  config  file,  /etc/naprc,  which  may  contain
   system-wide   default   configuration  options.  These  can  still  be
   overridden  by  the user. A "--transparent" option was added for those
   users  who  use  eterm or similar with a pretty background image: this
   causes  nap  to  use the default background instead of black (requires
   ncurses-5.2).  The behavior of Ctrl-W on the main screen was improved,
   and  Ctrl-L now works on the search result screen. A firewall question
   was  added  to  the interactive setup. Estimated times of arrival were
   added.  A  filtering  option  was added to the /pdown command. Also, a
   variety  of  bugs and small glitches were fixed. This release includes
   contributions  by  Nufsi,  Matthew Rench, Steffen Pingel, Jesse Pavel,
   and Sebastian Zagrodzki.

   July  1,  2001:  Release 1.4.5. After more than two months, this is an
   overdue  release. I incorporated many patches and bug reports, as well
   as  adding some new features. The main new feature is that the OpenNap
   servers  are  now  the  default  for  nap. The reason for this is that
   Napster Inc.   has   modified  their  servers  to  use  a  new  client
   authentification  scheme,  which means nap users can no longer connect
   to  their servers. Nap will automatically download a list of available
   servers  from  napigator.com,  and then connect to the first available
   one.

   Other  changes:  A Windows (cygwin32) distribution has been added. Nap
   now  fully  supports  VBR  (variable bitrate) files. Various segfaults
   were  removed.  Commands  such  as  /set,  /alias,  /server  etc. were
   modified  to  do  something  useful  when  no arguments are given. The
   appearance  of the search result screen can now be customized, and the
   result  screen  is not reset when switching back and forth to the main
   screen. A /getservers command was added to read a list of servers from
   napigator.com.  The  /reconnect  command  was modified to cycle to the
   next server on the list, rather than starting from the top of the list
   each  time.  PONG  packages  are  now  ignored by default. The various
   binary distributions are now statically linked, to avoid problems with
   missing  shared  libraries.  This  release  includes  contributions by
   Nufsi,  R黡iger  Kuhlman,  Mark Glines, Steffen Pingel, Matthew Rench,
   and Pawel Fedorynski.

   Nap's  [1]sourceforge  project  page has been updated and is now fully
   operational.  You  are  encouraged to use sourceforge's facilities for
   bug reports, feature requests etc.

   July  1,  2001:  Release 1.4.5. After more than two months, this is an
   overdue  release. I incorporated many patches and bug reports, as well
   as  adding some new features. The main new feature is that the OpenNap
   servers  are  now  the  default  for  nap. The reason for this is that
   Napster Inc.   has   modified  their  servers  to  use  a  new  client
   authentification  scheme,  which means nap users can no longer connect
   to  their servers. Nap will automatically download a list of available
   servers  from  napigator.com,  and then connect to the first available
   one.

   Other  changes:  A Windows (cygwin32) distribution has been added. Nap
   now  fully  supports  VBR  (variable bitrate) files. Various segfaults
   were  removed.  Commands  such  as  /set,  /alias,  /server  etc. were
   modified  to  do  something  useful  when  no arguments are given. The
   appearance  of the search result screen can now be customized, and the
   result  screen  is not reset when switching back and forth to the main
   screen. A /getservers command was added to read a list of servers from
   napigator.com.  The  /reconnect  command  was modified to cycle to the
   next server on the list, rather than starting from the top of the list
   each  time.  PONG  packages  are  now  ignored by default. The various
   binary distributions are now statically linked, to avoid problems with
   missing  shared  libraries.  This  release  includes  contributions by
   Nufsi,  R黡iger  Kuhlman,  Mark Glines, Steffen Pingel, Matthew Rench,
   and Pawel Fedorynski.

   Nap's  [2]sourceforge  project  page has been updated and is now fully
   operational.  You  are  encouraged to use sourceforge's facilities for
   bug reports, feature requests etc.

   July  1,  2001:  Release 1.4.5. After more than two months, this is an
   overdue  release. I incorporated many patches and bug reports, as well