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-rw-r--r--src/cleanup/cleanup_rewrite.c123
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diff --git a/src/cleanup/cleanup_rewrite.c b/src/cleanup/cleanup_rewrite.c
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+/*++
+/* NAME
+/* cleanup_rewrite 3
+/* SUMMARY
+/* address canonicalization
+/* SYNOPSIS
+/* #include <cleanup.h>
+/*
+/* int cleanup_rewrite_external(context_name, result, addr)
+/* const char *context;
+/* VSTRING *result;
+/* const char *addr;
+/*
+/* int cleanup_rewrite_internal(context_name, result, addr)
+/* const char *context;
+/* VSTRING *result;
+/* const char *addr;
+/*
+/* int cleanup_rewrite_tree(context_name, tree)
+/* const char *context;
+/* TOK822 *tree;
+/* DESCRIPTION
+/* This module rewrites addresses to canonical form, adding missing
+/* domains and stripping source routes etc., and performs
+/* \fIcanonical\fR map lookups to map addresses to official form.
+/* These functions return non-zero when the address was changed.
+/*
+/* cleanup_rewrite_init() performs one-time initialization.
+/*
+/* cleanup_rewrite_external() rewrites the external (quoted) string
+/* form of an address.
+/*
+/* cleanup_rewrite_internal() is a wrapper around the
+/* cleanup_rewrite_external() routine that transforms from
+/* internal (quoted) string form to external form and back.
+/*
+/* cleanup_rewrite_tree() is a wrapper around the
+/* cleanup_rewrite_external() routine that transforms from
+/* internal parse tree form to external form and back.
+/*
+/* Arguments:
+/* .IP context_name
+/* The name of an address rewriting context that supplies
+/* the equivalents of myorigin and mydomain.
+/* .IP result
+/* Result buffer.
+/* .IP addr
+/* Input buffer.
+/* DIAGNOSTICS
+/* 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 <msg.h>
+#include <vstring.h>
+
+/* Global library. */
+
+#include <tok822.h>
+#include <rewrite_clnt.h>
+#include <quote_822_local.h>
+
+/* Application-specific. */
+
+#include "cleanup.h"
+
+#define STR vstring_str
+
+/* cleanup_rewrite_external - rewrite address external form */
+
+int cleanup_rewrite_external(const char *context_name, VSTRING *result,
+ const char *addr)
+{
+ rewrite_clnt(context_name, addr, result);
+ return (strcmp(STR(result), addr) != 0);
+}
+
+/* cleanup_rewrite_tree - rewrite address node */
+
+int cleanup_rewrite_tree(const char *context_name, TOK822 *tree)
+{
+ VSTRING *dst = vstring_alloc(100);
+ VSTRING *src = vstring_alloc(100);
+ int did_rewrite;
+
+ tok822_externalize(src, tree->head, TOK822_STR_DEFL);
+ did_rewrite = cleanup_rewrite_external(context_name, dst, STR(src));
+ tok822_free_tree(tree->head);
+ tree->head = tok822_scan(STR(dst), &tree->tail);
+ vstring_free(dst);
+ vstring_free(src);
+ return (did_rewrite);
+}
+
+/* cleanup_rewrite_internal - rewrite address internal form */
+
+int cleanup_rewrite_internal(const char *context_name,
+ VSTRING *result, const char *addr)
+{
+ VSTRING *dst = vstring_alloc(100);
+ VSTRING *src = vstring_alloc(100);
+ int did_rewrite;
+
+ quote_822_local(src, addr);
+ did_rewrite = cleanup_rewrite_external(context_name, dst, STR(src));
+ unquote_822_local(result, STR(dst));
+ vstring_free(dst);
+ vstring_free(src);
+ return (did_rewrite);
+}