| 1 | m4_divert(-1)m4_dnl ### -*-m4-*- |
| 2 | ### |
| 3 | ### Basic definitions for distorted.org.uk Exim configuration |
| 4 | ### |
| 5 | ### (c) 2012 Mark Wooding |
| 6 | ### |
| 7 | |
| 8 | ###----- Licensing notice --------------------------------------------------- |
| 9 | ### |
| 10 | ### This program is free software; you can redistribute it and/or modify |
| 11 | ### it under the terms of the GNU General Public License as published by |
| 12 | ### the Free Software Foundation; either version 2 of the License, or |
| 13 | ### (at your option) any later version. |
| 14 | ### |
| 15 | ### This program is distributed in the hope that it will be useful, |
| 16 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | ### GNU General Public License for more details. |
| 19 | ### |
| 20 | ### You should have received a copy of the GNU General Public License |
| 21 | ### along with this program; if not, write to the Free Software Foundation, |
| 22 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 23 | |
| 24 | m4_changequote(<:, :>) |
| 25 | m4_changecom(<:#:#:>) |
| 26 | |
| 27 | ###-------------------------------------------------------------------------- |
| 28 | ### Output file preamble and postamble. |
| 29 | |
| 30 | m4_divert(0)m4_dnl |
| 31 | ### -*-conf-*- GENERATED FROM exim-config/*.m4 (MODE) DO NOT EDIT! |
| 32 | ### |
| 33 | ### Exim configuration for distorted.org.uk. |
| 34 | |
| 35 | m4_divert(1000)m4_dnl |
| 36 | ### GENERATED FROM exim-config/*.m4 (MODE): DO NOT EDIT! |
| 37 | m4_divert(-1) |
| 38 | |
| 39 | ###-------------------------------------------------------------------------- |
| 40 | ### Useful macros. |
| 41 | |
| 42 | ## ONEOF(arg, ...) |
| 43 | ## |
| 44 | ## Output the first of its arguments that is non-empty. |
| 45 | m4_define(<:ONEOF:>, <:m4_ifelse(<:$#:>, <:1:>, <:$1:>, |
| 46 | <:$1:>, <::>, <:ONEOF(m4_shift($@)):>, <:$1:>):>) |
| 47 | |
| 48 | ## DEFCONF(conf, default) |
| 49 | ## |
| 50 | ## Define config variable CONF, assigning it the DEFAULT value if not |
| 51 | ## overridden by `SETCONF'. |
| 52 | m4_define(<:DEFCONF:>, |
| 53 | <:m4_ifdef(<:CONF_$1:>, <::>, |
| 54 | <:m4_define(<:CONF_$1:>, <:$2:>):>):>) |
| 55 | |
| 56 | ## SETCONF(conf, value) |
| 57 | ## |
| 58 | ## Set config variable VALUE. |
| 59 | m4_define(<:SETCONF:>, <:m4_define(<:CONF_$1:>, <:$2:>):>) |
| 60 | |
| 61 | ## FOREACH(what, list) |
| 62 | ## |
| 63 | ## The LIST is a comma-separated list of things, like an m4 argument list. |
| 64 | ## For each item in the list, expand WHAT as if it's the body of a macro with |
| 65 | ## the list item as its arguments. In other words, the list item itself can |
| 66 | ## be a list of comma-separated items, which are available as $1, $2, ..., |
| 67 | ## within WHAT. |
| 68 | m4_define(<:_FOREACH:>, <:m4_dnl |
| 69 | m4_ifelse(<:$#:>, <:1:>, <:_foreach_func($1):>, |
| 70 | <:_foreach_func($1)<::>_FOREACH(m4_shift($@)):>):>) |
| 71 | m4_define(<:FOREACH:>, <:m4_dnl |
| 72 | m4_pushdef(<:_foreach_func:>, <:$1:>)m4_dnl |
| 73 | _FOREACH($2)<::>m4_dnl |
| 74 | m4_popdef(<:_foreach_func:>):>) |
| 75 | |
| 76 | ## CLRSEP |
| 77 | ## |
| 78 | ## Clear the separator. Use in conjunction with `SEP' below. |
| 79 | m4_define(<:CLRSEP:>, <:m4_define(<:__sep:>, <::>):>)m4_dnl |
| 80 | |
| 81 | ## SEP(newsep) |
| 82 | ## |
| 83 | ## Insert the current separator, and then set the separator to NEWSEP. This |
| 84 | ## is handy in `FOREACH' loops, in order to separate the items with the |
| 85 | ## correct number of fenceposts: call `CLRSEP' before the list, and begin |
| 86 | ## each item with SEP(...). |
| 87 | m4_define(<:SEP:>, <:__sep<::>m4_define(<:__sep:>, <:$1:>):>)m4_dnl |
| 88 | |
| 89 | ## DIVERT(name) |
| 90 | ## |
| 91 | ## Make _div:NAME be the current diversion. |
| 92 | m4_define(<:DIVERT:>, <:m4_dnl |
| 93 | m4_divert(m4_indir(<:_div:$1:>))m4_dnl |
| 94 | :>) |
| 95 | |
| 96 | ## SECTION(name, [sub]) |
| 97 | ## |
| 98 | ## Contribute the following text to section NAME, inserting appropriate |
| 99 | ## header text to the top of the section if necessary. If a SUB-section name |
| 100 | ## is given, then the contribution is made to the subsection, and the |
| 101 | ## subsection's header (if any) is also inserted. |
| 102 | m4_define(<:SECTION:>, <:m4_dnl |
| 103 | DIVERT(<:$1:>)m4_dnl |
| 104 | m4_ifdef(<:_done:$1:>, <::>, <:m4_dnl |
| 105 | ###-------------------------------------------------------------------------- |
| 106 | m4_ifdef(<:_head:$1:>, <:m4_indir(<:_head:$1:>):>, <:begin $1:>) |
| 107 | |
| 108 | m4_define(<:_done:$1:>, <:1:>):>)m4_dnl |
| 109 | m4_ifelse(<:$2:>, <::>, <::>, <:m4_dnl |
| 110 | DIVERT(<:$1/$2:>)m4_dnl |
| 111 | m4_ifdef(<:_done:$1/$2:>, <::>, <:m4_dnl |
| 112 | m4_ifdef(<:_head:$1/$2:>, <:<:##:> m4_indir(<:_head:$1/$2:>) |
| 113 | :>)m4_define(<:_done:$1/$2:>):>):>):>) |
| 114 | |
| 115 | ## ADD_HEADER(hdrs) |
| 116 | ## |
| 117 | ## An ACL action to add the given HDRS, which are a `\n'-terminated list of |
| 118 | ## new header lines. |
| 119 | m4_define(<:ADD_HEADER:>, <:m4_dnl |
| 120 | set acl_m_hdradd = ${if def:acl_m_hdradd{$acl_m_hdradd}{}}$1\n:>) |
| 121 | |
| 122 | ## RENAME_HEADERS_ADD(list) |
| 123 | ## |
| 124 | ## Return a newline-separated list of message header additions of the form |
| 125 | ## X-Distorted-Renamed-HEADER: VALUE |
| 126 | ## for each HEADER in the LIST which appears in the current message, where |
| 127 | ## VALUE is the HEADER's current value. |
| 128 | m4_define(<:RENAME_HEADERS_ADD:>, <:m4_dnl |
| 129 | FOREACH(<:\ |
| 130 | ${if def:h_$:><:1:{X-CONF_header_token-Renamed-$:><:1: $h_$:><:1:\n}}:>, |
| 131 | <:$1:>):>) |
| 132 | |
| 133 | ## RENAME_HEADERS_REMOVE(list) |
| 134 | ## |
| 135 | ## Return the LIST, with items separated by colons. |
| 136 | m4_define(<:RENAME_HEADERS_REMOVE:>, <:m4_dnl |
| 137 | CLRSEP<::>FOREACH(<:SEP(:)$:><:1:>, <:$1:>):>) |
| 138 | |
| 139 | ## WARNING_HEADER(tag, msg) |
| 140 | ## |
| 141 | ## Add a warning header to the current mesage. |
| 142 | m4_define(<:WARNING_HEADER:>, |
| 143 | <:add_header = X-CONF_header_token-Warning: $1 $2:>) |
| 144 | |
| 145 | ## LOOKUP_DOMAIN(dom, [if-found], [if-not-found]) |
| 146 | ## |
| 147 | ## Look up DOM in the master domains file. If it's found, put the |
| 148 | ## information found in `$value' and expand to IF-FOUND, which may use `KV' |
| 149 | ## to extract keyword values, and defaults to `$value'; otherwise, obey |
| 150 | ## IF-NOT-FOUND, which may be the token `fail', or replacement text in |
| 151 | ## braces. |
| 152 | m4_define(<:LOOKUP_DOMAIN:>, |
| 153 | <:if exists{CONF_sysconf_dir/domains.conf} \ |
| 154 | {${lookup {$1}partial0-lsearch{CONF_sysconf_dir/domains.conf} \ |
| 155 | m4_ifelse(<:$2$3:>, <::>, <::>, |
| 156 | <:$2:>, <::>, <:{$value}$3:>, |
| 157 | <:$2$3:>)}} \ |
| 158 | $3:>) |
| 159 | |
| 160 | ## KV(key, result) |
| 161 | ## |
| 162 | ## Extract the value of the named KEY in the ${extract ...}-style string in |
| 163 | ## the current $value (where it may have been left by `LOOKUP-DOMAIN'). The |
| 164 | ## RESULT is a pair {IF-FOUND}{IF-NOT-FOUND}; the former may use $value to |
| 165 | ## refer to the value; the latter may be `fail' (not in braces) to force |
| 166 | ## expansion failure. |
| 167 | m4_define(<:KV:>, <:${extract {$1}{$value}$2}:>) |
| 168 | |
| 169 | ## DOMKV(key, result) |
| 170 | ## |
| 171 | ## Extract the value of the named KEY in the ${extract ...}-style string in |
| 172 | ## $domain_data; see `KV'. |
| 173 | m4_define(<:DOMKV:>, <:${extract {$1}{$domain_data}$2}:>) |
| 174 | |
| 175 | m4_divert(999)m4_dnl |
| 176 | ###----- That's all, folks -------------------------------------------------- |
| 177 | m4_divert(-1) |