Binary compatibility report for the libmemcached library between 0.7 and 0.8 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.7
Version #2	0.8
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	28 / 31
Verdict	Incompatible (41.1%)

Problem Summary

	Severity	Count
Added Symbols	-	7
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	2
	Low	6
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes in Data Types	-	2

Added Symbols (7)

memcached.h, libmemcached.so.1.0.0
memcached_fetch_result ( memcached_st* ptr, memcached_result_st* result, enum memcached_return* error )
memcached_result_create ( memcached_st* ptr, memcached_result_st* result )
memcached_result_free ( memcached_result_st* result )
memcached_result_length ( memcached_result_st* ptr )
memcached_result_value ( memcached_result_st* ptr )
memcached_server_add_unix_socket ( memcached_st* ptr, char* filename )
memcached_stat_free ( memcached_st* p1, memcached_stat_st* p2 )

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Problems with Data Types, Medium Severity (2)

memcached.h
[+] struct memcached_st (2)

	Change	Effect
1	Field hash 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	Field result_buffer 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 (23)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

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

memcached_behavior_get ( memcached_st* ptr, enum memcached_behavior flag )

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

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

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

memcached_clone ( memcached_st* clone, memcached_st* ptr )

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

memcached_create ( memcached_st* ptr )

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

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, unsigned int offset, unsigned int* value )

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

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

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

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

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

memcached_flush ( memcached_st* ptr, time_t expiration )

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

memcached_free ( memcached_st* ptr )

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

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

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

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, unsigned int offset, unsigned int* value )

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

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

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

memcached_quit ( memcached_st* ptr )

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

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

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

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

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

memcached_server_push ( memcached_st* ptr, memcached_server_st* list )

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

memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

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

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

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

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

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

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

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

memcached_strerror ( memcached_st* ptr, enum memcached_return rc )

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

memcached_verbosity ( memcached_st* ptr, unsigned int verbosity )

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

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Problems with Data Types, Low Severity (6)

	Change	Effect
1	Name of member with value 2 has been changed from MEMCACHED_BEHAVIOR_MD5_HASHING to MEMCACHED_BEHAVIOR_HASH.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

memcached.h
[+] enum memcached_behavior (1)
[+] enum memcached_return (1)

	Change	Effect
1	Value of member MEMCACHED_MAXIMUM_RETURN has been changed from 26 to 28.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

[+] affected symbols (25)

memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_behavior_get ( memcached_st* ptr, enum memcached_behavior flag )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

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

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_clone ( memcached_st* clone, memcached_st* ptr )

Field 'ptr->warning' in 2nd parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_create ( memcached_st* ptr )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_decrement ( memcached_st* ptr, char* key, size_t key_length, unsigned int offset, unsigned int* value )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

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

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_flush ( memcached_st* ptr, time_t expiration )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_free ( memcached_st* ptr )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_increment ( memcached_st* ptr, char* key, size_t key_length, unsigned int offset, unsigned int* value )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

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

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_quit ( memcached_st* ptr )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags )

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

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

Field 'ptr->warning' in 1st parameter 'ptr' (pointer) has type 'enum memcached_return'.

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

4th parameter 'error' (pointer) has base type 'enum memcached_return'.