Lines Matching refs:NULL
25 if (name == NULL) in find_env_callback()
26 return NULL; in find_env_callback()
36 return NULL; in find_env_callback()
59 var_entry->callback = NULL; in env_callback_init()
62 if (callback_list != NULL) in env_callback_init()
73 if (clbkp != NULL) in env_callback_init()
88 entry->callback = NULL; in clear_callback()
102 e.data = NULL; in set_callback()
103 e.callback = NULL; in set_callback()
107 if (ep != NULL) { in set_callback()
109 if (value == NULL || strlen(value) == 0) in set_callback()
110 ep->callback = NULL; in set_callback()
114 if (clbkp != NULL) in set_callback()
133 env_attr_walk(ENV_CALLBACK_LIST_STATIC, set_callback, NULL); in on_callbacks()
135 env_attr_walk(value, set_callback, NULL); in on_callbacks()