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diff --git a/src/global/tok822.h b/src/global/tok822.h
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+#ifndef _TOK822_H_INCLUDED_
+#define _TOK822_H_INCLUDED_
+
+/*++
+/* NAME
+/* tok822 3h
+/* SUMMARY
+/* RFC822 token structures
+/* SYNOPSIS
+/* #include <tok822.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+ * Utility library.
+ */
+#include <vstring.h>
+
+ /*
+ * Global library.
+ */
+#include <resolve_clnt.h>
+
+ /*
+ * Internal address representation: a token tree.
+ */
+typedef struct TOK822 {
+ int type; /* token value, see below */
+ VSTRING *vstr; /* token contents */
+ struct TOK822 *prev; /* peer */
+ struct TOK822 *next; /* peer */
+ struct TOK822 *head; /* group members */
+ struct TOK822 *tail; /* group members */
+ struct TOK822 *owner; /* group owner */
+} TOK822;
+
+ /*
+ * Token values for multi-character objects. Single-character operators are
+ * represented by their own character value.
+ */
+#define TOK822_MINTOK 256
+#define TOK822_ATOM 256 /* non-special character sequence */
+#define TOK822_QSTRING 257 /* stuff between "", not nesting */
+#define TOK822_COMMENT 258 /* comment including (), may nest */
+#define TOK822_DOMLIT 259 /* stuff between [] not nesting */
+#define TOK822_ADDR 260 /* actually a token group */
+#define TOK822_STARTGRP 261 /* start of named group */
+#define TOK822_MAXTOK 261
+
+ /*
+ * tok822_node.c
+ */
+extern TOK822 *tok822_alloc(int, const char *);
+extern TOK822 *tok822_free(TOK822 *);
+
+ /*
+ * tok822_tree.c
+ */
+extern TOK822 *tok822_append(TOK822 *, TOK822 *);
+extern TOK822 *tok822_prepend(TOK822 *, TOK822 *);
+extern TOK822 *tok822_cut_before(TOK822 *);
+extern TOK822 *tok822_cut_after(TOK822 *);
+extern TOK822 *tok822_unlink(TOK822 *);
+extern TOK822 *tok822_sub_append(TOK822 *, TOK822 *);
+extern TOK822 *tok822_sub_prepend(TOK822 *, TOK822 *);
+extern TOK822 *tok822_sub_keep_before(TOK822 *, TOK822 *);
+extern TOK822 *tok822_sub_keep_after(TOK822 *, TOK822 *);
+extern TOK822 *tok822_free_tree(TOK822 *);
+
+typedef int (*TOK822_ACTION) (TOK822 *);
+extern int tok822_apply(TOK822 *, int, TOK822_ACTION);
+extern TOK822 **tok822_grep(TOK822 *, int);
+
+ /*
+ * tok822_parse.c
+ */
+extern TOK822 *tok822_scan_limit(const char *, TOK822 **, int);
+extern TOK822 *tok822_scan_addr(const char *);
+extern TOK822 *tok822_parse_limit(const char *, int);
+extern VSTRING *tok822_externalize(VSTRING *, TOK822 *, int);
+extern VSTRING *tok822_internalize(VSTRING *, TOK822 *, int);
+
+#define tok822_scan(cp, ptr) tok822_scan_limit((cp), (ptr), 0)
+#define tok822_parse(cp) tok822_parse_limit((cp), 0)
+
+#define TOK822_STR_NONE (0)
+#define TOK822_STR_WIPE (1<<0)
+#define TOK822_STR_TERM (1<<1)
+#define TOK822_STR_LINE (1<<2)
+#define TOK822_STR_TRNC (1<<3)
+#define TOK822_STR_DEFL (TOK822_STR_WIPE | TOK822_STR_TERM)
+#define TOK822_STR_HEAD (TOK822_STR_TERM | TOK822_STR_LINE | TOK822_STR_TRNC)
+
+ /*
+ * tok822_find.c
+ */
+extern TOK822 *tok822_find_type(TOK822 *, int);
+extern TOK822 *tok822_rfind_type(TOK822 *, int);
+
+ /*
+ * tok822_rewrite.c
+ */
+extern TOK822 *tok822_rewrite(TOK822 *, const char *);
+
+ /*
+ * tok822_resolve.c
+ */
+#define tok822_resolve(t, r) tok822_resolve_from(RESOLVE_NULL_FROM, (t), (r))
+
+extern void tok822_resolve_from(const char *, TOK822 *, RESOLVE_REPLY *);
+
+/* 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
+/*--*/
+
+#endif