module interface: New func param flag: CMD_PARAM_NO_EXPAND

This is a temporary solution, just to help speed up the porting of all
avpops functions (avpops needs major rework anyway -- no time for that
now).  NOT to be re-used in the future, as we want a uniform
behavior for all string function parameters.

mod_fix.c

@@ -154,8 +154,11 @@ int fix_cmd(struct cmd_param *params, action_elem_t *elems)
 					ret = E_UNSPEC;
 					goto error;
 				}
-				if (!pve->next && pve->spec.type == PVT_NONE) {
-					/* no variables in the provided string */
+
+				if ((param->flags & CMD_PARAM_NO_EXPAND) ||
+				    (!pve->next && pve->spec.type == PVT_NONE)) {
+
+					/* ignoring/no variables in the provided string */
 					pv_elem_free_all(pve);
 
 					if (param->fixup) {

sr_module.h

@@ -117,6 +117,7 @@ typedef int (*mod_proc_wrapper)();
 
 #define CMD_PARAM_OPT        (1<<4)  /* optional parameter */
 #define CMD_PARAM_FIX_NULL   (1<<5)  /* run fixup even if optional parameter is omitted */
+#define CMD_PARAM_NO_EXPAND  (1<<6)  /* TMPHACK: do not pv-expand strings */
 
 struct cmd_param {
 	int flags;              /* parameter flags */