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/*++
/* NAME
/* dict_static 3
/* SUMMARY
/* dictionary manager interface to static variables
/* SYNOPSIS
/* #include <dict_static.h>
/*
/* DICT *dict_static_open(name, name, dict_flags)
/* const char *name;
/* int dummy;
/* int dict_flags;
/* DESCRIPTION
/* dict_static_open() implements a dummy dictionary that returns
/* as lookup result the dictionary name, regardless of the lookup
/* key value.
/* SEE ALSO
/* dict(3) generic dictionary manager
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* jeffm
/* ghostgun.com
/*
/* Wietse Venema
/* Google, Inc.
/* 111 8th Avenue
/* New York, NY 10011, USA
/*--*/
/* System library. */
#include "sys_defs.h"
#include <stdio.h> /* sprintf() prototype */
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
/* Utility library. */
#include "mymalloc.h"
#include "msg.h"
#include "stringops.h"
#include "dict.h"
#include "dict_static.h"
/*
* Subclass of DICT.
*/
typedef struct {
DICT dict; /* parent class */
char *value;
} DICT_STATIC;
#define STR(x) vstring_str(x)
/* dict_static_lookup - access static value*/
static const char *dict_static_lookup(DICT *dict, const char *unused_name)
{
DICT_STATIC *dict_static = (DICT_STATIC *) dict;
DICT_ERR_VAL_RETURN(dict, DICT_ERR_NONE, dict_static->value);
}
/* dict_static_close - close static dictionary */
static void dict_static_close(DICT *dict)
{
DICT_STATIC *dict_static = (DICT_STATIC *) dict;
if (dict_static->value)
myfree(dict_static->value);
if (dict->fold_buf)
vstring_free(dict->fold_buf);
dict_free(dict);
}
/* dict_static_open - make association with static variable */
DICT *dict_static_open(const char *name, int open_flags, int dict_flags)
{
DICT_STATIC *dict_static;
char *err = 0;
char *cp, *saved_name = 0;
const char *value;
VSTRING *base64_buf;
/*
* Let the optimizer worry about eliminating redundant code.
*/
#define DICT_STATIC_OPEN_RETURN(d) do { \
DICT *__d = (d); \
if (saved_name != 0) \
myfree(saved_name); \
if (err != 0) \
myfree(err); \
return (__d); \
} while (0)
/*
* Optionally strip surrounding braces and whitespace.
*/
if (name[0] == CHARS_BRACE[0]) {
saved_name = cp = mystrdup(name);
if ((err = extpar(&cp, CHARS_BRACE, EXTPAR_FLAG_STRIP)) != 0)
DICT_STATIC_OPEN_RETURN(dict_surrogate(DICT_TYPE_STATIC, name,
open_flags, dict_flags,
"bad %s:name syntax: %s",
DICT_TYPE_STATIC,
err));
value = cp;
} else {
value = name;
}
/*
* Bundle up the preliminary result.
*/
dict_static = (DICT_STATIC *) dict_alloc(DICT_TYPE_STATIC, name,
sizeof(*dict_static));
dict_static->dict.lookup = dict_static_lookup;
dict_static->dict.close = dict_static_close;
dict_static->dict.flags = dict_flags | DICT_FLAG_FIXED;
dict_static->dict.owner.status = DICT_OWNER_TRUSTED;
dict_static->value = 0;
/*
* Optionally replace the value with file contents.
*/
if (dict_flags & DICT_FLAG_SRC_RHS_IS_FILE) {
if ((base64_buf = dict_file_to_b64(&dict_static->dict, value)) == 0) {
err = dict_file_get_error(&dict_static->dict);
dict_close(&dict_static->dict);
DICT_STATIC_OPEN_RETURN(dict_surrogate(DICT_TYPE_STATIC, name,
open_flags, dict_flags,
"%s", err));
}
value = vstring_str(base64_buf);
}
/*
* Finalize the result.
*/
dict_static->value = mystrdup(value);
dict_file_purge_buffers(&dict_static->dict);
DICT_STATIC_OPEN_RETURN(DICT_DEBUG (&(dict_static->dict)));
}
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