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      1 /*	$NetBSD: tok822_rewrite.c,v 1.1.1.1 2009/06/23 10:08:48 tron Exp $	*/
      2 
      3 /*++
      4 /* NAME
      5 /*	tok822_rewrite 3
      6 /* SUMMARY
      7 /*	address rewriting, client interface
      8 /* SYNOPSIS
      9 /*	#include <tok822.h>
     10 /*
     11 /*	TOK822	*tok822_rewrite(addr, how)
     12 /*	TOK822	*addr;
     13 /*	char	*how;
     14 /* DESCRIPTION
     15 /*	tok822_rewrite() takes an address token tree and transforms
     16 /*	it according to the rule set specified via \fIhow\fR. The
     17 /*	result is the \fIaddr\fR argument.
     18 /* LICENSE
     19 /* .ad
     20 /* .fi
     21 /*	The Secure Mailer license must be distributed with this software.
     22 /* AUTHOR(S)
     23 /*	Wietse Venema
     24 /*	IBM T.J. Watson Research
     25 /*	P.O. Box 704
     26 /*	Yorktown Heights, NY 10598, USA
     27 /*--*/
     28 
     29 /* System library. */
     30 
     31 #include <sys_defs.h>
     32 
     33 /* Utility library. */
     34 
     35 #include <vstring.h>
     36 #include <msg.h>
     37 
     38 /* Global library. */
     39 
     40 #include "rewrite_clnt.h"
     41 #include "tok822.h"
     42 
     43 /* tok822_rewrite - address rewriting interface */
     44 
     45 TOK822 *tok822_rewrite(TOK822 *addr, const char *how)
     46 {
     47     VSTRING *input_ext_form = vstring_alloc(100);
     48     VSTRING *canon_ext_form = vstring_alloc(100);
     49 
     50     if (addr->type != TOK822_ADDR)
     51 	msg_panic("tok822_rewrite: non-address token type: %d", addr->type);
     52 
     53     /*
     54      * Externalize the token tree, ship it to the rewrite service, and parse
     55      * the result. Shipping external form is much simpler than shipping parse
     56      * trees.
     57      */
     58     tok822_externalize(input_ext_form, addr->head, TOK822_STR_DEFL);
     59     if (msg_verbose)
     60 	msg_info("tok822_rewrite: input: %s", vstring_str(input_ext_form));
     61     rewrite_clnt(how, vstring_str(input_ext_form), canon_ext_form);
     62     if (msg_verbose)
     63 	msg_info("tok822_rewrite: result: %s", vstring_str(canon_ext_form));
     64     tok822_free_tree(addr->head);
     65     addr->head = tok822_scan(vstring_str(canon_ext_form), &addr->tail);
     66 
     67     vstring_free(input_ext_form);
     68     vstring_free(canon_ext_form);
     69     return (addr);
     70 }
     71