X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/exim-config/blobdiff_plain/31c922203e7c08f64c983044985d31d3470db13f..1e5ccd7c52be79d1de45691a0bb46cbb1a686bf0:/defs.m4

diff --git a/defs.m4 b/defs.m4
index f2767fd..370c2d3 100644
--- a/defs.m4
+++ b/defs.m4
@@ -112,6 +112,30 @@ m4_ifdef(<:_done:$1/$2:>, <::>, <:m4_dnl
 m4_ifdef(<:_head:$1/$2:>, <:<:##:> m4_indir(<:_head:$1/$2:>)
 :>)m4_define(<:_done:$1/$2:>):>):>):>)
 
+## ADD_HEADER(hdrs)
+##
+## An ACL action to add the given HDRS, which are a `\n'-terminated list of
+## new header lines.
+m4_define(<:ADD_HEADER:>, <:m4_dnl
+ set	acl_m_hdradd = ${if def:acl_m_hdradd{$acl_m_hdradd}{}}$1\n:>)
+
+## RENAME_HEADERS_ADD(list)
+##
+## Return a newline-separated list of message header additions of the form
+##	X-Distorted-Renamed-HEADER: VALUE
+## for each HEADER in the LIST which appears in the current message, where
+## VALUE is the HEADER's current value.
+m4_define(<:RENAME_HEADERS_ADD:>, <:m4_dnl
+FOREACH(<:\
+	${if def:h_$:><:1:{X-CONF_header_token-Renamed-$:><:1: $h_$:><:1:\n}}:>,
+	<:$1:>):>)
+
+## RENAME_HEADERS_REMOVE(list)
+##
+## Return the LIST, with items separated by colons.
+m4_define(<:RENAME_HEADERS_REMOVE:>, <:m4_dnl
+CLRSEP<::>FOREACH(<:SEP(:)$:><:1:>, <:$1:>):>)
+
 ## LOOKUP_DOMAIN(dom, [if-found], [if-not-found])
 ##
 ## Look up DOM in the master domains file.  If it's found, put the