Binary compatibility report for the libiw library between 29 and 30.pre9 versions on x86

Test Info

iwlib.h, libiw.so.30
iw_essid_escape ( char* dest, char const* src, int const slen )
iw_essid_unescape ( char* dest, char const* src )

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iwlib.h
[+] struct wireless_config (2)

	Change	Effect
1	Field essid_len 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.
2	Type of field essid has been changed from char[33] (33 bytes) to char[34] (34 bytes).	This field may be incorrectly initialized or accessed by applications.

[+] affected symbols (4)

iw_get_basic_config ( int skfd, char const* ifname, wireless_config* info )

3rd parameter 'info' (pointer) has base type 'struct wireless_config'.

iw_process_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result.b' in 4th parameter 'context' (pointer) has type 'struct wireless_config'.

iw_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result.b' in 4th parameter 'context' (pointer) has type 'struct wireless_config'.

iw_set_basic_config ( int skfd, char const* ifname, wireless_config* info )

3rd parameter 'info' (pointer) has base type 'struct wireless_config'.

[+] struct wireless_scan (1)

	Change	Effect
1	Size of field b has been changed from 176 bytes to 180 bytes.	1) Size of the inclusive type has been changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.

[+] affected symbols (2)

iw_process_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result' in 4th parameter 'context' (pointer) has base type 'struct wireless_scan'.

iw_scan ( int skfd, char* ifname, int we_version, wireless_scan_head* context )

Field 'context.result' in 4th parameter 'context' (pointer) has base type 'struct wireless_scan'.

iwlib.h
[+] struct wireless_config (1)

	Change	Effect
1	Size of this type has been changed from 176 bytes to 180 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.