Here are the data structures with brief descriptions:

C__file	FILE type structure
C_gpib_t
C_mat
C_printf_t	Undefine any potential macro version of these functions
C_uart
CAMIGODiskType	AMIGO Disk structure - ID bytes and layout
CAMIGOGeometryType
CAMIGOStateType	AMIGO emulator state machine index
Cbuffer_t
CConfigType
CDeviceType	Device Type
CDIR
Cdirent
Cdisk_t
Cdst_t	DST structure
Cf_t	Format specifier flags
CFATFS
Cfault_t	Fault bit and Message type
CFFOBJID
CFIL
CFILINFO
Cgpib_token_t	GPIB command mapping to printable strings
CHeaderType
Chpdir_t
Ci2c_op_t
Ci2c_task_t
Clif_t	Master LIF data structure Contains image file name Volume Structure Current Directory Entry read/write flag
Clifdir_t	Directory layout
Cliftel_t	Master TeleDisk Format Analisis structure We look for the specifications of LIF image stored inside the TeleDisk image We Examine the first 30 tracks (just some number less then 35)
Clifvol_t	Disk Layout
CMKFS_PARM
Cp_ch_t	Data structure for character buffer with limits
CPRINTERDeviceType	Printer structure
CPRINTERStateType	Plotter file data structure definition used for saving plot data
Cqueue_t	Queue structure
CSDIO_CTRL
Csector_t	Sector information and Sector "ID"
CSS80ControllerType	SS80 Controller
CSS80DiskType	Disk Information Structure
CSS80StateType	SS80 Emulated disk state information
CSS80UnitType	SS80 Unit
CSS80VolumeType	Volume Information Structure
Cstat	POSIX stat structure
Ctd_comment_t	Comment header Only used when bit 7 of TrackDensity in TeleDisk Header is set
Ctd_header_t	TeleDisk Image Header
Ctd_sector_t	Sector Header Contents of the Sector ID fields which preceeded the sector data From the original physical disk used to make the TeleDIsk image
Ctd_track_t	Track Header Contains the Physical Sectors, Cylinder, Side number From the original physical disk used to make the TeleDIsk image
CTIMERS	User timer struct
Ctimespec	POSIX timespec
Ctimeval	POSIX timeval
Ctimezone	POSIX timezone
Ctm	POSIX struct tm
Ctoken_t
Ctrack_t
Cutimbuf	POSIX utimbuf structure
Cval_t