NetBSD/gnu/dist/postfix/proto/cidr_table

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#++
# NAME
# cidr_table 5
# SUMMARY
# format of Postfix CIDR tables
# SYNOPSIS
# \fBpostmap -q "\fIstring\fB" cidr:/etc/postfix/\fIfilename\fR
#
# \fBpostmap -q - cidr:/etc/postfix/\fIfilename\fR <\fIinputfile\fR
# DESCRIPTION
# The Postfix mail system uses optional access control tables.
# These tables are usually in \fBdbm\fR or \fBdb\fR format.
# Alternatively, access control tables can be specified in CIDR
# (Classless Inter-Domain Routing) form.
#
# To find out what types of lookup tables your Postfix system
# supports use the \fBpostconf -m\fR command.
#
# To test lookup tables, use the \fBpostmap\fR command as
# described in the SYNOPSIS above.
# TABLE FORMAT
# .ad
# .fi
# The general form of a Postfix CIDR table is:
# .IP "\fInetwork_address\fB/\fInetwork_mask result\fR"
# When a search string matches the specified network block,
# use the corresponding \fIresult\fR value. Specify
# 0.0.0.0/0 to match every address.
# .IP "\fInetwork_address result\fR"
# When a search string matches the specified network address,
# use the corresponding \fIresult\fR value.
# .IP "blank lines and comments"
# Empty lines and whitespace-only lines are ignored, as
# are lines whose first non-whitespace character is a `#'.
# .IP "multi-line text"
# A logical line starts with non-whitespace text. A line that
# starts with whitespace continues a logical line.
# SEARCH ORDER
# .ad
# .fi
# Patterns are applied in the order as specified in the table, until a
# pattern is found that matches the search string.
# EXAMPLE SMTPD ACCESS MAP
# /etc/postfix/main.cf:
# .ti +4
# smtpd_client_restrictions = ... cidr:/etc/postfix/client.cidr ...
#
# /etc/postfix/client.cidr:
# .in +4
# # Rule order matters. Put more specific whitelist entries
# # before more general blacklist entries.
# 192.168.1.1 OK
# 192.168.0.0/16 REJECT
# .in -4
# SEE ALSO
# postmap(1), Postfix lookup table manager
# regexp_table(5) format of regular expression tables
# pcre_table(5) format of PCRE tables
# README FILES
# .ad
# .fi
# Use "\fBpostconf readme_directory\fR" or
# "\fBpostconf html_directory\fR" to locate this information.
# .na
# .nf
# DATABASE_README, Postfix lookup table overview
# AUTHOR(S)
# The CIDR table lookup code was originally written by:
# Jozsef Kadlecsik
# kadlec@blackhole.kfki.hu
# KFKI Research Institute for Particle and Nuclear Physics
# POB. 49
# 1525 Budapest, Hungary
#
# Adopted and adapted by:
# Wietse Venema
# IBM T.J. Watson Research
# P.O. Box 704
# Yorktown Heights, NY 10598, USA
#--