Binary compatibility report for the libmemcached library between 0.17 and 0.18 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.17
Version #2	0.18
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	2
Total Shared Libraries	1
Total Symbols / Types	53 / 67
Verdict	Incompatible (45.3%)

Problem Summary

	Severity	Count
Added Symbols	-	0
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	5
	Low	2
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes in Data Types	-	3
Other Changes in Constants	-	5

Problems with Data Types, Medium Severity (5)

memcached.h
[+] enum memcached_behavior (3)

	Change	Effect
1	Value of member MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT has been changed from 13 to 14.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
2	Value of member MEMCACHED_BEHAVIOR_SORT_HOSTS has been changed from 11 to 12.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
3	Value of member MEMCACHED_BEHAVIOR_VERIFY_KEY has been changed from 12 to 13.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

[+] affected symbols (2)

memcached_behavior_get ( memcached_st* ptr, enum memcached_behavior flag )

2nd parameter 'flag' has type 'enum memcached_behavior'.

memcached_behavior_set ( memcached_st* ptr, enum memcached_behavior flag, uint64_t data )

2nd parameter 'flag' has type 'enum memcached_behavior'.

[+] struct memcached_server_st (1)

	Change	Effect
1	Field next_retry 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 (48)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_add_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_append_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_behavior_get ( memcached_st* ptr, enum memcached_behavior flag )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_behavior_set ( memcached_st* ptr, enum memcached_behavior flag, uint64_t data )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_callback_get ( memcached_st* ptr, enum memcached_callback flag, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_callback_set ( memcached_st* ptr, enum memcached_callback flag, void* data )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_cas ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags, uint64_t cas )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_cas_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags, uint64_t cas )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_clone ( memcached_st* clone, memcached_st* ptr )

Field 'clone->hosts' in 1st parameter 'clone' (pointer) has base type 'struct memcached_server_st'.

memcached_create ( memcached_st* ptr )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_delete ( memcached_st* ptr, char* key, size_t key_length, time_t expiration )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_delete_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, time_t expiration )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_fetch_execute ( memcached_st* ptr, unsigned int(**callback)(memcached_st*, memcached_result_st*, void*), void* context, unsigned int number_of_callbacks )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_fetch_result ( memcached_st* ptr, memcached_result_st* result, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_flush ( memcached_st* ptr, time_t expiration )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_free ( memcached_st* ptr )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_get_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, size_t* value_length, uint32_t* flags, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, uint32_t offset, uint64_t* value )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_mget ( memcached_st* ptr, char** keys, size_t* key_length, unsigned int number_of_keys )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_mget_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char** keys, size_t* key_length, unsigned int number_of_keys )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_prepend_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_quit ( memcached_st* ptr )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_replace_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_result_create ( memcached_st* ptr, memcached_result_st* result )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_add ( memcached_st* ptr, char* hostname, unsigned int port )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_add_udp ( memcached_st* ptr, char* hostname, unsigned int port )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_add_unix_socket ( memcached_st* ptr, char* filename )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_cursor ( memcached_st* ptr, memcached_server_function* callback, void* context, unsigned int number_of_callbacks )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_list_append ( memcached_server_st* ptr, char* hostname, unsigned int port, enum memcached_return* error )

1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_list_count ( memcached_server_st* ptr )

1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_list_free ( memcached_server_st* ptr )

1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_server_push ( memcached_st* ptr, memcached_server_st* list )

2nd parameter 'list' (pointer) has base type 'struct memcached_server_st'.

memcached_servers_parse ( char* server_strings )

Return value (pointer) has base type 'struct memcached_server_st'.

memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_set_by_key ( memcached_st* ptr, char* master_key, size_t master_key_length, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_stat ( memcached_st* ptr, char* args, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_stat_free ( memcached_st* p1, memcached_stat_st* p2 )

Field 'p1->hosts' in 1st parameter 'p1' (pointer) has base type 'struct memcached_server_st'.

memcached_stat_get_keys ( memcached_st* ptr, memcached_stat_st* stat, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_stat_get_value ( memcached_st* ptr, memcached_stat_st* stat, char* key, enum memcached_return* error )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_strerror ( memcached_st* ptr, enum memcached_return rc )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

memcached_verbosity ( memcached_st* ptr, unsigned int verbosity )

Field 'ptr->hosts' in 1st parameter 'ptr' (pointer) has base type 'struct memcached_server_st'.

[+] struct memcached_st (1)

	Change	Effect
1	Field retry_timeout 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 (44)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint32_t flags )

1st parameter 'ptr' (pointer) has base type 'struct memcached_st'.