Here are the data structures with brief descriptions:

_PLIBC_SEARCH_ENTRY
MD5Context
MHD_Connection
MHD_ConnectionInfo
MHD_Daemon
MHD_DaemonInfo
MHD_HTTP_Header
MHD_NonceNc
MHD_OptionItem
MHD_Pollfd
MHD_Response
PLIBC_SEARCH_entry
PLIBC_SEARCH_hsearch_data
PLIBC_SEARCH_QELEM