fix some path handling issues

src/filewatcher/filewatcher.c

@@ -78,10 +78,27 @@ static hiFileEvent file_event_create(const struct inotify_event *inevent,
   }
 
   if (inevent->len) {
+#define BUFSIZE 1024
+    char filename[BUFSIZE];
+    size_t parent_name_size = strlen(fw->path);
+    size_t event_path_size = strlen(inevent->name);
+    size_t fullpath_size = parent_name_size + event_path_size;
+    if (fullpath_size > BUFSIZE - 1) {
+      sc_log_error("Pathname length over %u, please compile with smaller "
+                   "paths. Event discarded for %s\n.", BUFSIZE - 1,
+                   inevent->name);
+      return NULL_EVENT;
+    }
+#undef BUFSIZE
+
+    strncpy(filename, fw->path, parent_name_size);
+    strncpy(filename + parent_name_size, inevent->name, event_path_size);
+    filename[fullpath_size] = '\0';
+
     // find if file is associated with any path
     for (size_t i = 0; i < sc_array_size(&fw->files); ++i) {
       const char *watched_file = sc_array_at(&fw->files, i);
-      if (strcmp(watched_file, inevent->name)) {
+      if (strcmp(watched_file, filename) == 0) {
 
         // check if event mask matches the watcher mask
         hiWatchParams *params =
@@ -117,7 +134,6 @@ static hiFileEvent file_event_create(const struct inotify_event *inevent,
     return NULL_EVENT;
   }
   // Event on the folder itself
-
   return NULL_EVENT;
 }
 
@@ -287,8 +303,9 @@ int file_watcher_watch(void *arg) {
         sc_array_add(&ctx->events, e);
 
         if (event->len) {
-          sc_log_debug("Event created: queue-size: %u, %s: %s\n", sc_array_size(&ctx->events),
-                       e.pathname, hi_file_watch_type_to_str(e.type));
+          sc_log_debug("Event created: queue-size: %u, %s %s\n",
+                       sc_array_size(&ctx->events), e.pathname,
+                       hi_file_watch_type_to_str(e.type));
         }
       }
       continue; // read again without waiting