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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);
}
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