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
tok822_rewrite(TOK822 * addr,const char * how)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