trim the wildcard of partial patterns to keep the avl tree sorted properly

diff --git a/ubusd_event.c b/ubusd_event.c
index 8e15d8d6a220870927cf1f495c6d1b4d014f114c..de3687924259e23c372e4a6788aa092b6d4aba9f 100644 (file)
--- a/ubusd_event.c
+++ b/ubusd_event.c
@@ -17,6 +17,7 @@ struct event_source {
        union {
                struct {
                        struct avl_node avl;
+                       bool partial;
                } pattern;
                struct {
                        struct list_head list;
@@ -86,8 +87,10 @@ static int ubusd_alloc_event_pattern(struct ubus_client *cl, struct blob_attr *m
        struct event_source *ev;
        struct ubus_object *obj;
        struct blob_attr *attr[EVREG_LAST];
-       const char *pattern;
+       char *pattern;
        uint32_t id;
+       bool partial = false;
+       int len;
 
        blobmsg_parse(evr_policy, EVREG_LAST, attr, blob_data(msg), blob_len(msg));
        if (!attr[EVREG_OBJECT])
@@ -108,7 +111,16 @@ static int ubusd_alloc_event_pattern(struct ubus_client *cl, struct blob_attr *m
                return ubusd_alloc_catchall(obj);
 
        pattern = blobmsg_data(attr[EVREG_PATTERN]);
-       ev = ubusd_alloc_event_source(obj, EVS_PATTERN, strlen(pattern) + 1);
+
+       len = strlen(pattern);
+       if (pattern[len - 1] == '*') {
+               partial = true;
+               pattern[len - 1] = 0;
+               len--;
+       }
+
+       ev = ubusd_alloc_event_source(obj, EVS_PATTERN, len + 1);
+       ev->pattern.partial = partial;
        ev->pattern.avl.key = (void *) (ev + 1);
        strcpy(ev->pattern.avl.key, pattern);
        avl_insert(&patterns, &ev->pattern.avl);