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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:06:34 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:06:34 +0000 |
commit | 5e61585d76ae77fd5e9e96ebabb57afa4d74880d (patch) | |
tree | 2b467823aaeebc7ef8bc9e3cabe8074eaef1666d /src/cleanup/cleanup_rewrite.c | |
parent | Initial commit. (diff) | |
download | postfix-upstream/3.5.24.tar.xz postfix-upstream/3.5.24.zip |
Adding upstream version 3.5.24.upstream/3.5.24upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/cleanup/cleanup_rewrite.c')
-rw-r--r-- | src/cleanup/cleanup_rewrite.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/cleanup/cleanup_rewrite.c b/src/cleanup/cleanup_rewrite.c new file mode 100644 index 0000000..3c81e7b --- /dev/null +++ b/src/cleanup/cleanup_rewrite.c @@ -0,0 +1,123 @@ +/*++ +/* 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); +} |