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- NRS database processor in C
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- Piete Brooks
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- University of Cambridge
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- Julian Onions
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- University of Nottingham
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- Adrian Pell
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- University of Reading
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- _W_h_a_t _i_s _t_h_e _N_R_S?
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- The Name Registration Service (NRS) is operated by the
- University of Salford on behalf of the Joint Network Team
- (JNT) of the Computer Board. It maintains a database of
- information relating names of entities (machines) and ser-
- vices to X.25 addresses on both JANET and PSS and vice
- versa.
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- The NRS also provides a number of packages for accessing the
- database in various ways. These latter packages are written
- in FORTRAN.
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- _W_h_a_t _i_s _t_h_e _N_R_S _d_a_t_a_b_a_s_e _p_r_o_c_e_s_s_o_r _i_n _C?
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- The NRS database processor in C is a configurable package to
- take the output of the NRS database, and convert it to forms
- suitable for input to a number of other programs, typically
- mail and communications systems.
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- _W_h_a_t _o_u_t_p_u_t _f_o_r_m_a_t_s _a_r_e _s_u_p_p_o_r_t_e_d?
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- The package can produce output in the following forms:
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- o+ Yorkbox directory tables. Both the current release
- (2.2) and the previous release (2.1) of the software
- are supported, although the tables are more compact and
- easier to inspect with release 2.2.
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- o+ Mmdf channel and domain tables
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- October 26, 1989
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- o+ X25hosts format. This is used for the UBC X.25 code.
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- o+ Text format, similar to the t.central format produced
- by the NRS (useful for sticking on the wall as wallpa-
- per!) as well PR1ME (also similar to t.central) and
- edtext which is actually quite useful.
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- o+ VAX/VMS "Coloured Book".
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- o+ Sendmail tables. Both the UK-1.4 sendmail configura-
- tion suite, and the Reading sendmail suite are sup-
- ported.
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- o+ DBM mode. This is a textual representation of the DBM
- format used by the UCL niftp suite. It is passed
- through dbencode to generate the DBM file.
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- _W_h_a_t _d_o _I _n_e_e_d _t_o _g_e_t _i_t _r_u_n_n_i_n_g?
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- The package is written in C and should be readily portable
- to most systems having a C compiler. However, it does
- require about 80kb of heap space (on a VAX) in addition to
- 70kb of program and static data. This size may be reduced
- by configuring out some of the output formats - full details
- in the kit. In addition, it must be possible to move to any
- point in a file without restriction. It is known to run on
- UNIX|- systems of a number of flavours, on VAX/VMS V4 with
- the VAX/VMS C compiler version 2.1 and on PR1MEs.
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- Besides the aforementioned C compiler, the only other
- requirement is a copy of the current NRS database. This can
- be obtained by FTP from the NRS machine. However, this does
- necessitate a valid username & password for the NRS machine.
- All academic institutions have an NRS administrator (often
- in the Computer Centre), who can supply details of this on
- request. If in difficulty, try contacting the NRS direct.
- You can call uk.ac.nrs on X29 or TS29 (currently
- 000014901000 and 000014901000/X29.000014901000 respectively)
- or phone John Davidson <JOHND@uk.ac.salf.r-d> on 061-737
- 7010.
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- _W_h_e_r_e _d_o _I _g_e_t _t_h_i_s _w_o_n_d_e_r_f_u_l _p_a_c_k_a_g_e?
-
- A shar format copy (which is about 150k bytes) of the pack-
- age may be obtained by one of the following methods:
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- 1) By anonymous FTP as follows:
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-
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- _________________________
- |- UNIX is a trademark of Bell Laboratories.
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- October 26, 1989
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- Machine: uk.ac.nott.cs (JANET 000021000018)
- Filename: <FTP>/nrs-shar
- Authorisation: guest
- Password: your-own-name
-
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- 2) By mail from jpo@uk.ac.nott.cs, pb@uk.ac.cam.cl or from
- the UK distributed info-server. Send mail to info-
- server at uk.ac.cam.cl, uk.ac.nott.cs or uk.ac.ukc,
- with a body of the form
-
- Request: catalogue
- Topic: c-nrs
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- _I_f _i_n _d_i_f_f_i_c_u_l_t_y ...
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- There is a mailing list for bug reports, patches, and dis-
- cussions of problems. To subscribe to the list, send mail
- to:
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- unix-nrs-request@uk.ac.nott.cs
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- Items for distribution to the mailing list should be sent
- to:
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- unix-nrs@uk.ac.nott.cs
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- October 26, 1989
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