Timo Sirainen wrote:

...

- another way (possible that will be more easiest, and good enough for advanced configurations) = single variable that may be set in block of exact ip listener configuration , as for provided before example may set variable "auth_db_suffix" = string("dc=domain1,dc=tld") for definition "local mail.domain1.tld" and that variable are inserted in auth block via variable inserting mechanism ...

Again not possible, because config parsing is done much earlier.

think for realization can take idea from that patch : --------------------------------- --- src/auth/auth-request.c.orig 2010-12-30 11:42:54.000000000 +0200 --- src/auth/auth-request.c.orig 2010-12-30 11:42:54.000000000 +0200 @@ -1547,6 +1547,7 @@ auth_request_get_var_expand_table(const { '\0', NULL, "login_user" }, { '\0', NULL, "login_username" }, { '\0', NULL, "login_domain" }, + { 'x', NULL, NULL }, { '\0', NULL, NULL } }; struct var_expand_table *tab; @@ -1600,6 +1601,15 @@ auth_request_get_var_expand_table(const auth_request); } } + const char *lip2user[][2] = {{"127.0.0.3","dc=domain1,dc=tld1"},{"127.0.0.1","localhost"},{"127.0.0.2","dc=domain2,dc=tld2"}}; + int arrsize=sizeof( lip2user ) / sizeof( lip2user[0]); + tab[18].value = ""; // default expanded to - emty string + int i; + for(i=0;ilocal_ip),(lip2user[i][0]))==0) { + tab[18].value = lip2user[i][1]; + } + } return tab; } --------------------------------- and there need only possibility to define pairs in config file for lip2user array initialization - then macro/variable %x will be available for substitution in all modules - as for ldap , as for filename-based parameters. in exaple patch created static table to match lip to suffix 127.0.0.3 = "dc=domain1,dc=tld1" 127.0.0.1 = "localhost" 127.0.0.2 = "dc=domain2,dc=tld2" how to initialize arrays from config - i'm was not explored for currently used coding structures may create this array more complex = not as simple pair - but as for selective conversion: %x1 lip to text1, %x2 lip to text2, %x3 lip to text3 ... - then diffirent advanced configurations will be possible ...