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| author | Jeremy Harris <jgh146exb@wizmail.org> | 2020-05-16 19:38:59 +0100 |
|---|---|---|
| committer | Jeremy Harris <jgh146exb@wizmail.org> | 2020-05-16 19:38:59 +0100 |
| commit | a63442492d25b3ab12d0bce2a8b879e32855aa72 (patch) | |
| tree | dc0eabb4bf51410554a0392dd1aa6e48c2e6b73b /doc | |
| parent | 5990a26531db1a1ba1ed4bc04554ba217c910b45 (diff) | |
Docs: options on lookups
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 6d8582528..12c03df64 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -6663,6 +6663,13 @@ If the value of &$sender_host_address$& is 192.168.5.6, expansion of the first &%domains%& setting above generates the second setting, which therefore causes a second lookup to occur. +.new +The lookup type may optionally be followed by a comma +and a comma-separated list of options. +Each option is a &"name=value"& pair. +Whether an option is meaningful depands on the lookup type. +.wen + The rest of this chapter describes the different lookup types that are available. Any of them can be used in any part of the configuration where a lookup is permitted. @@ -6680,6 +6687,13 @@ lookup to succeed. The lookup type determines how the file is searched. .new .cindex "tainted data" "single-key lookups" The file string may not be tainted + +.cindex "tainted data" "de-tainting" +All single-key lookups support the option &"ret=key"&. +If this is given and the lookup +(either underlying implementation or cached value) +returns data, the result is replaced with a non-tainted +version of the lookup key. .wen .next .cindex "query-style lookup" "definition of" |