Binary compatibility report for the libmemcached library between 0.12 and 0.13 versions on x86

Test Info

Library Name	libmemcached
Version #1	0.12
Version #2	0.13
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	48 / 49
Verdict	Incompatible (97.9%)

Problem Summary

	Severity	Count
Added Symbols	-	1
Removed Symbols	High	0
Problems with Data Types	High	2
	Medium	5
	Low	3
Problems with Symbols	High	12
	Medium	3
	Low	0
Problems with Constants	Low	0
Other Changes in Data Types	-	3

Added Symbols (1)

memcached.h, libmemcached.so.2.0.0
memcached_fetch_execute ( memcached_st* ptr, unsigned int(**callback)(memcached_st*, memcached_result_st*, void*), void* context, unsigned int number_of_callbacks )

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Problems with Data Types, High Severity (2)

	Change	Effect
1	Field stack_responses has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

	Change	Effect
1	Field result_buffer has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

memcached.h
[+] struct memcached_server_st (1)
[+] struct memcached_st (1)

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Problems with Symbols, High Severity (12)

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 7th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

	Change	Effect
1	Type of 9th parameter flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

memcached.h, libmemcached.so.1.1.2
[+] memcached_add ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags ) (1)
[+] 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, uint16_t flags ) (1)
[+] memcached_append ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags ) (1)
[+] 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, uint16_t flags ) (1)
[+] memcached_cas ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags, uint64_t cas ) (1)
[+] 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, uint16_t flags, uint64_t cas ) (1)
[+] memcached_prepend ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags ) (1)
[+] 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, uint16_t flags ) (1)
[+] memcached_replace ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags ) (1)
[+] 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, uint16_t flags ) (1)
[+] memcached_set ( memcached_st* ptr, char* key, size_t key_length, char* value, size_t value_length, time_t expiration, uint16_t flags ) (1)
[+] 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, uint16_t flags ) (1)

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Problems with Data Types, Medium Severity (5)

	Change	Effect
1	Type of field flags has been changed from uint16_t (2 bytes) to uint32_t (4 bytes).	This field may be incorrectly initialized or accessed by applications.

	Change	Effect
1	Field result 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 user_data 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.
3	Field replicas has been removed from this type.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.
4	Field warning has been removed from this type.	1) Applications will access incorrect memory when attempting to access this field. 2) Size of the inclusive type has been changed.

memcached.h
[+] struct memcached_result_st (1)
[+] struct memcached_st (4)

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Problems with Symbols, Medium Severity (3)

	Change	Effect
1	Base type of 5th parameter flags has been changed from unsigned short (2 bytes) to unsigned int (4 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 5th parameter flags has been changed from unsigned short (2 bytes) to unsigned int (4 bytes).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 7th parameter flags has been changed from unsigned short (2 bytes) to unsigned int (4 bytes).	This parameter may be incorrectly initialized by applications.

memcached.h, libmemcached.so.1.1.2
[+] memcached_fetch ( memcached_st* ptr, char* key, size_t* key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error ) (1)
[+] memcached_get ( memcached_st* ptr, char* key, size_t key_length, size_t* value_length, uint16_t* flags, enum memcached_return* error ) (1)
[+] 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, uint16_t* flags, enum memcached_return* error ) (1)

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Problems with Data Types, Low Severity (3)

	Change	Effect
1	Value of member MEMCACHED_MAXIMUM_RETURN has been changed from 31 to 32.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

	Change	Effect
1	Size of this type has been changed from 16512 bytes to 16508 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Size of this type has been changed from 4180 bytes to 4452 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

memcached.h
[+] enum memcached_return (1)
[+] struct memcached_server_st (1)
[+] struct memcached_st (1)

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Other Changes in Data Types (3)

	Change	Effect
1	The member MEMCACHED_BEHAVIOR_BUFFER_REQUESTS with value 10 has been added.	No effect.
2	The member MEMCACHED_BEHAVIOR_USER_DATA with value 11 has been added.	No effect.

	Change	Effect
1	The member MEMCACHED_BUFFERED with value 31 has been added.	No effect.

memcached.h
[+] enum memcached_behavior (2)
[+] enum memcached_return (1)

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Header Files (1)

memcached.h

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Shared Libraries (1)

libmemcached.so.1.1.2

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