1 files changed, 74 insertions, 0 deletions
diff --git a/src/global/tok822_resolve.c b/src/global/tok822_resolve.c
new file mode 100644
index 0000000..f178aaf
--- /dev/null
+++ b/src/global/tok822_resolve.c
@@ -0,0 +1,74 @@
+/*++
+/* NAME
+/*	tok822_resolve 3
+/* SUMMARY
+/*	address resolving, client interface
+/* SYNOPSIS
+/*	#include <tok822.h>
+/*
+/*	void	tok822_resolve(addr, reply)
+/*	TOK822	*addr;
+/*	RESOLVE_REPLY *reply;
+/*
+/*	void	tok822_resolve_from(sender, addr, reply)
+/*	const char *sender;
+/*	TOK822	*addr;
+/*	RESOLVE_REPLY *reply;
+/* DESCRIPTION
+/*	tok822_resolve() takes an address token tree and finds out the
+/*	transport to deliver via, the next-hop host on that transport,
+/*	and the recipient relative to that host.
+/*
+/*	tok822_resolve_from() allows the caller to specify sender context
+/*	that will be used to look up sender-dependent relayhost information.
+/* SEE ALSO
+/*	resolve_clnt(3) basic resolver client interface
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <vstring.h>
+#include <msg.h>
+
+/* Global library. */
+
+#include "resolve_clnt.h"
+#include "tok822.h"
+
+/* tok822_resolve - address rewriting interface */
+
+void    tok822_resolve_from(const char *sender, TOK822 *addr,
+			            RESOLVE_REPLY *reply)
+{
+    VSTRING *intern_form = vstring_alloc(100);
+
+    if (addr->type != TOK822_ADDR)
+	msg_panic("tok822_resolve: non-address token type: %d", addr->type);
+
+    /*
+     * Internalize the token tree and ship it to the resolve service.
+     * Shipping string forms is much simpler than shipping parse trees.
+     */
+    tok822_internalize(intern_form, addr->head, TOK822_STR_DEFL);
+    resolve_clnt_query_from(sender, vstring_str(intern_form), reply);
+    if (msg_verbose)
+	msg_info("tok822_resolve: from=%s addr=%s -> chan=%s, host=%s, rcpt=%s",
+		 sender,
+		 vstring_str(intern_form), vstring_str(reply->transport),
+		 vstring_str(reply->nexthop), vstring_str(reply->recipient));
+
+    vstring_free(intern_form);
+}