const char *find_config_str(const struct config_node *cn,
const char *path, const char *fail)
{
return _find_config_str(cn, NULL, path, fail);
}
const char *find_config_tree_str(struct cmd_context *cmd,
const char *path, const char *fail)
{
return _find_config_str(cmd->cft_override ? cmd->cft_override->root : NULL, cmd->cft->root, path, fail);
}
const char *dm_config_tree_find_str_allow_empty(const struct dm_config_tree *cft, const char *path,
const char *fail)
{
return _find_config_str(cft, _find_first_config_node, path, fail, 1);
}
const char *dm_config_find_str_allow_empty(const struct dm_config_node *cn,
const char *path, const char *fail)
{
return _find_config_str(cn, _find_config_node, path, fail, 1);
}
const char *dm_config_find_str(const struct dm_config_node *cn,
const char *path, const char *fail)
{
return _find_config_str(cn, _find_config_node, path, fail, 0);
}
static const struct dm_config_node *_find_config_node(const void *start, const char *path) {
struct dm_config_node dummy = { .child = (void *) start };
return _find_or_make_node(NULL, &dummy, path);
}
static const struct dm_config_node *_find_first_config_node(const void *start, const char *path)
{
const struct dm_config_tree *cft = start;
const struct dm_config_node *cn = NULL;
while (cft) {
if ((cn = _find_config_node(cft->root, path)))
return cn;
cft = cft->cascade;
}
return NULL;
}
static const char *_find_config_str(const void *start, node_lookup_fn find_fn,
const char *path, const char *fail, int allow_empty)
{
const struct dm_config_node *n = find_fn(start, path);
/* Empty strings are ignored if allow_empty is set */
if (n && n->v) {
if ((n->v->type == DM_CFG_STRING) &&
(allow_empty || (*n->v->v.str))) {
log_very_verbose("Setting %s to %s", path, n->v->v.str);
return n->v->v.str;
}
if ((n->v->type != DM_CFG_STRING) || (!allow_empty && fail))
log_warn("WARNING: Ignoring unsupported value for %s.", path);
}
if (fail)
log_very_verbose("%s not found in config: defaulting to %s",
path, fail);
return fail;
}
const char *dm_config_find_str(const struct dm_config_node *cn,
const char *path, const char *fail)
{
return _find_config_str(cn, _find_config_node, path, fail, 0);
}
const char *dm_config_find_str_allow_empty(const struct dm_config_node *cn,
const char *path, const char *fail)
{
return _find_config_str(cn, _find_config_node, path, fail, 1);
}
static int64_t _find_config_int64(const void *start, node_lookup_fn find,
const char *path, int64_t fail)
{
const struct dm_config_node *n = find(start, path);
if (n && n->v && n->v->type == DM_CFG_INT) {
log_very_verbose("Setting %s to %" PRId64, path, n->v->v.i);
return n->v->v.i;
}
log_very_verbose("%s not found in config: defaulting to %" PRId64,
path, fail);
return fail;
}
static float _find_config_float(const void *start, node_lookup_fn find,
const char *path, float fail)
{
const struct dm_config_node *n = find(start, path);
if (n && n->v && n->v->type == DM_CFG_FLOAT) {
log_very_verbose("Setting %s to %f", path, n->v->v.f);
return n->v->v.f;
}
log_very_verbose("%s not found in config: defaulting to %f",
path, fail);
return fail;
}
static int _str_in_array(const char *str, const char * const values[])
{
int i;
for (i = 0; values[i]; i++)
if (!strcasecmp(str, values[i]))
return 1;
return 0;
}
