exp_t *
exp_list(exp_t *list, exp_t *exp)
{
ll_t *ll;
if (list->ex_type != EX_LIST)
{
ll = ll_create();
if (ll == NULL)
{
log_die(EX_SOFTWARE, "exp_list: ll_create failed");
}
if (LL_INSERT(ll, list) == -1)
{
log_die(EX_SOFTWARE, "exp_list: LL_INSERT failed");
}
list = exp_create(EX_LIST, ll);
}
else
{
ll = list->ex_data;
}
if (LL_INSERT(ll, exp) == -1)
{
log_die(EX_SOFTWARE, "exp_list: LL_INSERT failed");
}
return list;
}
int
cf_load_list(ll_t *list, char *key, var_type_t type)
{
var_t *v, *item;
ll_entry_t *pos;
v = vtable_lookup(cf_config, key);
if (v == NULL)
{
log_error("cf_load_list: %s not found", key);
return -1;
}
// Scalar
if (v->v_type == type)
{
if (LL_INSERT(list, v->v_data) == -1)
{
log_error("cf_load_list: LL_INSERT failed");
return -1;
}
return 0;
}
// Unexpected type
if (v->v_type != VT_LIST)
{
log_error("config error: unexpected value for %s", key);
return -1;
}
pos = LL_START((ll_t *) v->v_data);
while ((item = ll_next(v->v_data, &pos)))
{
if (item->v_type != type)
{
log_error("config error: unexpected value in %s", key);
return -1;
}
if (LL_INSERT(list, item->v_data) == -1)
{
log_error("cf_load_list: LL_INSERT failed");
return -1;
}
}
return 0;
}
int
vlist_append(var_t *list, var_t *item)
{
ll_t *ll = list->v_data;
if((LL_INSERT(ll, item)) == -1)
{
log_warning("vlist_append: LL_INSERT failed");
return -1;
}
return 0;
}
exp_t *
exp_create(exp_type_t type, void *data)
{
exp_t *exp;
exp = (exp_t *) malloc(sizeof (exp_t));
if (exp == NULL)
{
log_sys_die(EX_OSERR, "exp_create: malloc");
}
exp->ex_type = type;
exp->ex_data = data;
if (LL_INSERT(exp_garbage, exp) == -1)
{
log_die(EX_OSERR, "exp_create: LL_INSERT failed");
}
return exp;
}
msgmod_t *
msgmod_create(msgmod_mod_t mod, msgmod_target_t target, ...)
{
msgmod_t *mm;
va_list ap;
exp_t *exp;
mm = (msgmod_t *) malloc(sizeof (msgmod_t));
if (mm == NULL)
{
log_sys_die(EX_OSERR, "msgmod_create: malloc");
}
mm->mm_callback = msgmod_get_callback(mod, target);
if (mm->mm_callback == NULL)
{
acl_parser_error("syntax error (msgmod callback)");
// Not reached.
return NULL;
}
mm->mm_args = ll_create();
if (mm->mm_args == NULL)
{
log_die(EX_SOFTWARE, "msgmod_create: ll_create failed");
}
va_start(ap, target);
while ((exp = va_arg(ap, exp_t *)))
{
if (LL_INSERT(mm->mm_args, exp) == -1)
{
log_die(EX_SOFTWARE, "msgmod_create: LL_INSERT failed");
}
}
return mm;
}
static var_t *
exp_eval_function(exp_t *exp, var_t *mailspec)
{
exp_function_t *ef = exp->ex_data;
acl_function_t *af;
var_t *args = NULL;
ll_t *single = NULL;
var_t *v = NULL;
af = acl_function_lookup(ef->ef_name);
if (af == NULL)
{
log_error("exp_eval_function: unknown function \"%s\"",
ef->ef_name);
goto error;
}
/*
* Function has arguments
*/
if (ef->ef_args)
{
args = exp_eval(ef->ef_args, mailspec);
if (args == NULL)
{
log_error("exp_eval_function: exp_eval failed");
goto error;
}
/*
* Convert single argument into list.
*/
if (args->v_type != VT_LIST)
{
single = ll_create();
if (single == NULL)
{
log_error("exp_eval_function: ll_create failed");
goto error;
}
if (LL_INSERT(single, args) == -1)
{
log_error("exp_eval_function: LL_INSERT failed");
goto error;
}
}
}
else
{
/*
* Function has no arguments -> empty list
*/
single = ll_create();
if (single == NULL)
{
log_error("exp_eval_function: ll_create failed");
goto error;
}
}
if (af->af_type == AF_SIMPLE)
{
v = exp_eval_function_simple(ef->ef_name, af,
single ? single : args->v_data);
}
else
{
v = exp_eval_function_complex(ef->ef_name, af,
single ? single : args->v_data);
}
if (v == NULL)
{
log_error("exp_eval_function: function \"%s\" failed",
ef->ef_name);
goto error;
}
error:
if (single)
{
ll_delete(single, NULL);
}
if (args)
{
exp_free(args);
}
return v;
}
static var_t *
exp_eval_function_simple(char *name, acl_function_t *af, ll_t *args)
{
ll_t garbage;
ll_entry_t *pos;
void **argv = NULL;
var_t *v = NULL;
int argc;
int size;
int i;
var_t *arg;
/*
* Initialize garbage
*/
ll_init(&garbage);
/*
* Check argc
*/
argc = args->ll_size;
if (argc != af->af_argc)
{
log_error("exp_eval_function_simple: function \"%s\" requires "
"%d arguments", name, af->af_argc);
return NULL;
}
size = (argc + 1) * sizeof (void *);
argv = (void **) malloc(size);
if (argv == NULL)
{
log_sys_error("exp_eval_function_simple: malloc");
return NULL;
}
memset(argv, 0, size);
/*
* Prepare argv
*/
pos = LL_START(args);
for (i = 0; (arg = ll_next(args, &pos)); ++i)
{
if (af->af_types[i] == arg->v_type)
{
argv[i] = arg->v_data;
continue;
}
/*
* Type casting required. Don't care about the remains of arg
* (freed with args!).
*/
arg = var_cast_copy(af->af_types[i], arg);
if (arg == NULL)
{
log_error("exp_eval_function_simple: var_cast_copy "
"failed");
goto error;
}
/*
* Need to free copy later
*/
if (LL_INSERT(&garbage, arg) == -1)
{
log_error("exp_eval_function_simlpe: LL_INSERT "
"failed");
var_delete(arg);
goto error;
}
argv[i] = arg->v_data;
}
v = af->af_callback.fc_simple(argc, argv);
error:
ll_clear(&garbage, (ll_delete_t) var_delete);
if (argv)
{
free(argv);
}
return v;
}
void
module_load(char *file)
{
module_t *mod;
VAR_INT_T *load;
char key[256];
if (util_stripped_filename(key, sizeof key, file))
{
log_die(EX_SOFTWARE, "module_load: util_stripped_filename failed");
}
load = (VAR_INT_T *) cf_get_value(VT_INT, "modules", key, NULL);
if (load != NULL)
{
if (!*load)
{
log_debug("module_glob: %s disabled in config", file);
return;
}
}
log_debug("module_glob: load %s", file);
mod = (module_t *) malloc(sizeof (module_t));
if (mod == NULL)
{
log_sys_die(EX_SOFTWARE, "module_load: malloc");
}
mod->mod_path = strdup(file);
mod->mod_name = strrchr(mod->mod_path, '/') + 1;
/*
* Open module
*/
mod->mod_handle = dlopen(file, RTLD_LAZY);
if (mod->mod_handle == NULL)
{
log_sys_die(EX_SOFTWARE, "module_load: dlopen: %s", dlerror());
}
/*
* Load Symbols
*/
mod->mod_init = module_symbol_load(mod->mod_handle, file, "init", 1);
mod->mod_fini = module_symbol_load(mod->mod_handle, file, "fini", 0);
/*
* Initialize module
*/
if (mod->mod_init())
{
log_die(EX_SOFTWARE, "module_load: %s: init failed",
mod->mod_name);
}
if (LL_INSERT(module_list, mod) == -1)
{
log_die(EX_SOFTWARE, "module_load: LL_INSERT failed");
}
return;
}