Binary compatibility report for the libnfc library between 1.4.1 and 1.4.2 versions on x86

Test Info

Library Name	libnfc
Version #1	1.4.1
Version #2	1.4.2
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	3
Total Shared Libraries	1
Total Symbols / Types	25 / 68
Verdict	Incompatible (40%)

Problem Summary

	Severity	Count
Added Symbols	-	0
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	1
	Low	1
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0

Problems with Data Types, Medium Severity (1)

nfc-types.h
[+] struct driver_callbacks (1)

	Change	Effect
1	Field init has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

[+] affected symbols (20)

nfc_configure ( nfc_device_t* pnd, nfc_device_option_t const ndo, bool const bEnable )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_connect ( nfc_device_desc_t* pndd )

Field 'retval->pdc' in return value (pointer) has base type 'driver_callbacks'.

nfc_device_name ( nfc_device_t* pnd )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_disconnect ( nfc_device_t* pnd )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_deselect_target ( nfc_device_t* pnd )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_init ( nfc_device_t* pnd )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_list_passive_targets ( nfc_device_t* pnd, nfc_modulation_t const nm, nfc_target_t* ant, size_t const szTargets, size_t* pszTargetFound )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_poll_targets ( nfc_device_t* pnd, nfc_modulation_t const* pnmTargetTypes, size_t const szTargetTypes, byte_t const btPollNr, byte_t const btPeriod, nfc_target_t* pntTargets, size_t* pszTargetFound )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_select_dep_target ( nfc_device_t* pnd, nfc_dep_mode_t const ndm, nfc_baud_rate_t const nbr, nfc_dep_info_t const* pndiInitiator, nfc_target_t* pnt )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_select_passive_target ( nfc_device_t* pnd, nfc_modulation_t const nm, byte_t const* pbtInitData, size_t const szInitData, nfc_target_t* pnt )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_transceive_bits ( nfc_device_t* pnd, byte_t const* pbtTx, size_t const szTxBits, byte_t const* pbtTxPar, byte_t* pbtRx, size_t* pszRxBits, byte_t* pbtRxPar )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_initiator_transceive_bytes ( nfc_device_t* pnd, byte_t const* pbtTx, size_t const szTx, byte_t* pbtRx, size_t* pszRx )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_perror ( nfc_device_t const* pnd, char const* pcString )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_strerror ( nfc_device_t const* pnd )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_strerror_r ( nfc_device_t const* pnd, char* pcStrErrBuf, size_t szBufLen )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_target_init ( nfc_device_t* pnd, nfc_target_t* pnt, byte_t* pbtRx, size_t* pszRx )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_target_receive_bits ( nfc_device_t* pnd, byte_t* pbtRx, size_t* pszRxBits, byte_t* pbtRxPar )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_target_receive_bytes ( nfc_device_t* pnd, byte_t* pbtRx, size_t* pszRx )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_target_send_bits ( nfc_device_t* pnd, byte_t const* pbtTx, size_t const szTxBits, byte_t const* pbtTxPar )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

nfc_target_send_bytes ( nfc_device_t* pnd, byte_t const* pbtTx, size_t const szTx )

Field 'pnd->pdc' in 1st parameter 'pnd' (pointer) has base type 'driver_callbacks'.

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Problems with Data Types, Low Severity (1)

nfc-types.h
[+] struct driver_callbacks (1)

	Change	Effect
1	Size of this type has been changed from 28 bytes to 32 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.