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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -423,12 +423,26 @@ Examples: $RANGE dhcp-f{:03x} 10.1.0.50 10.2.255.254 50 -#### `$INCLUDE` and `$GENERATE` #### +#### `$INCLUDE` #### -The `$INCLUDE` and `$GENERATE` control operators are not currently implemented. +`$INCLUDE` is a standard control operator, but for the main expected +`zc` use cases there's not much need for it. -`$INCLUDE` is a standard control operator, but we appear to have no -current need for it. +`zc` supports a limited form of the `$INCLUDE` operator, intended +mainly for automation (that is, for cases where one wants to include a +machine-generated set of DNS data into a larger zone that you're +maintaining with `zc`). Limitations: + +1. `zc` doesn't support the optional `origin` field of the `$INCLUDE` + operator as defined in RFC 1035. + +2. `zc` does *not* preserve the current `$ORIGIN` value of the outer + file while processing `$INCLUDE`, so if the included file changes + the `$ORIGIN`, the outer file will see that change. Don't do that. + +#### `$GENERATE` #### + +The `$GENERATE` control operators is not currently implemented. `$GENERATE` is a BIND-specific control operator. We could implement it if there were a real need, but the `$RANGE` operator covers the |