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SKK dictionary server based on cdb
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dbskkd-cdb readme/installation note in English

Announcement 10-JAN-2018: no further development will be made on dbskkd-cdb.

for version dbskkd-cdb-3.00

by Kenji Rikitake

last updated 13-NOV-2016

Travis CI build status for the master branch

Build Status


dbskkd-cdb is a dictionary server for SKK Japanese Input Method system. For building the executable file, TinyCDB is required. See for the details of the server-client protocol.


See LICENSE. The MIT License.

Test environment

  • FreeBSD/amd64 11.0-STABLE
  • Periodically tested on Travis CI with both clang and gcc

Installation procedure

  1. converts a plaintext SKK dictionary to the CDB format. The default source file name is /usr/local/share/skk/SKK-JISYO.L and the converted cdb file will be placed in the current directory as SKK-JISYO.L.cdb. This .cdb file should be placed with the filename specified in JISYO_FILE macro in dbskkd-cdb.c.

  2. Do make to compile. This require cdb.h and libcdb.a of TinyCDB. For the Make prodecure on Linux, consult .travis.yml.

  3. Do make install to copy the compile executable image to the executable image directory. The default directory is /usr/local/libexec.

User privilege on installation

Assign a dedicated non-privileged user for this program and invoke with the uid.

DO NOT invoke with the root or superuser privilege.

See for the configuration examples.

Note on collecting user information

dbskkd-cdb does not collect any usage statistics or information.

Bug reports and comments

The source code repository and issue tracker is available in Github at
Inquiries and comments are welcome by the forms of GitHub Pull Requests and issues in Japanese and English. If you do not want to use GitHub, contact Kenji Rikitake by email for your proposals.


Daniel J. Bernstein for his cdb, Michael Tokarev for his TinyCDB.

SKK developers and contributors including:

Makahito Sato, Mikio Nakajima, Yukiyoshi Kameyama, Masaaki Sato, Takashi Sakamoto, Fumitoshi Ukai, Toshinori Maeno, Yasuhiro Honda, Hayao Nakahara, Takahiro Kikuchi, Hideo Matsumoto, Hidetaka Koie, Takao Kawamura, Hideto Kihara, Rikishi Inakazu, Makoto Matsushita, Atsushi Yamagata, Tatsuya Kinoshita, Ryosuke Nakai, Hajimu Umemoto.

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