Binary compatibility report for the libwebsockets.so object between 1.7.9 and 2.1.0 versions on x86_64

Test Info

Module Name	libwebsockets
Version #1	1.7.9
Version #2	2.1.0
Arch	x86_64
GCC Version	8.0.1

Test Results

Total Header Files	1
Total Source Files	16
Total Objects	1
Total Symbols / Types	69 / 35
Compatibility	94.9%

Problem Summary

	Severity	Count
Added Symbols	-	38
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	10
	Low	25
Problems with Symbols	High	0
	Medium	1
	Low	1
Problems with Constants	Low	0
Other Changes in Data Types	-	8

Added Symbols 38

libwebsockets.h, libwebsockets.so.9
lws_adopt_socket_readbuf ( struct lws_context* context, lws_sockfd_type accept_fd, char const* readbuf, size_t len )
lws_callback_all_protocol_vhost ( struct lws_vhost* vh, struct lws_protocols const* protocol, int reason )
lws_callback_http_dummy ( struct lws* wsi, enum lws_callback_reasons reason, void* user, void* in, size_t len )
lws_callback_on_writable_all_protocol_vhost ( struct lws_vhost const* vhost, struct lws_protocols const* protocol )
lws_callback_vhost_protocols ( struct lws* wsi, int reason, void* in, int len )
lws_chunked_html_process ( struct lws_process_html_args* args, struct lws_process_html_state* s )
lws_client_http_body_pending ( struct lws* wsi, int something_left_to_send )
lws_create_vhost ( struct lws_context* context, struct lws_context_creation_info* info )
lws_finalize_startup ( struct lws_context* context )
lws_get_child ( struct lws const* wsi )
lws_get_mimetype ( char const* file, struct lws_http_mount const* m )
lws_get_parent ( struct lws const* wsi )
lws_get_peer_simple ( struct lws* wsi, char* name, int namelen )
lws_get_urlarg_by_name ( struct lws* wsi, char const* name, char* buf, int len )
lws_get_vhost ( struct lws* wsi )
lws_http_client_read ( struct lws* wsi, char** buf, int* len )
lws_http_redirect ( struct lws* wsi, int code, unsigned char const* loc, int len, unsigned char** p, unsigned char* end )
lws_init_vhost_client_ssl ( struct lws_context_creation_info const* info, struct lws_vhost* vhost )
lws_is_cgi ( struct lws* wsi )
lws_json_purify ( char* escaped, char const* string, int len )
lws_now_secs ( )
lws_protocol_get ( struct lws* wsi )
lws_protocol_vh_priv_get ( struct lws_vhost* vhost, struct lws_protocols const* prot )
lws_protocol_vh_priv_zalloc ( struct lws_vhost* vhost, struct lws_protocols const* prot, int size )
lws_service_adjust_timeout ( struct lws_context* context, int timeout_ms, int tsi )
lws_set_extension_option ( struct lws* wsi, char const* ext_name, char const* opt_name, char const* opt_val )
lws_spa_create ( struct lws* wsi, char const*const* param_names, int count_params, int max_storage, lws_spa_fileupload_cb opt_cb, void* opt_data )
lws_spa_destroy ( struct lws_spa* spa )
lws_spa_finalize ( struct lws_spa* spa )
lws_spa_get_length ( struct lws_spa* ludspa, int n )
lws_spa_get_string ( struct lws_spa* ludspa, int n )
lws_spa_process ( struct lws_spa* ludspa, char const* in, int len )
lws_sql_purify ( char* escaped, char const* string, int len )
lws_urldecode ( char* string, char const* escaped, int len )
lws_urlencode ( char* escaped, char const* string, int len )
lws_vhost_get ( struct lws* wsi )
lws_vhost_name_to_protocol ( struct lws_vhost* vh, char const* name )
lwsl_timestamp ( int level, char* p, int len )

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Problems with Data Types, Medium Severity 10

	Change	Effect
1	Value of member WSI_INIT_TOKEN_MUXURL has been changed from 89 to 91.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
2	Value of member WSI_PARSING_COMPLETE has been changed from 88 to 90.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
3	Value of member WSI_TOKEN_NAME_PART has been changed from 85 to 87.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
4	Value of member WSI_TOKEN_SKIPPING has been changed from 86 to 88.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
5	Value of member WSI_TOKEN_SKIPPING_SAW_CR has been changed from 87 to 89.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
6	Value of member _WSI_TOKEN_CLIENT_HOST has been changed from 82 to 83.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
7	Value of member _WSI_TOKEN_CLIENT_ORIGIN has been changed from 83 to 84.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
8	Value of member _WSI_TOKEN_CLIENT_PEER_ADDRESS has been changed from 80 to 81.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
9	Value of member _WSI_TOKEN_CLIENT_SENT_PROTOCOLS has been changed from 79 to 80.	Applications may execute a wrong branch of code in the library and therefore change the behavior.
10	Value of member _WSI_TOKEN_CLIENT_URI has been changed from 81 to 82.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

libwebsockets.h
[+] enum lws_token_indexes 10

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Problems with Symbols, Medium Severity 1

	Change	Effect
1	Base type of 1st parameter context has been changed from struct lws_context (5960 bytes) to struct lws_vhost (464 bytes).	This parameter may be incorrectly initialized by applications.

libwebsockets.h, libwebsockets.so.7.1
[+] lws_set_proxy ( struct lws_context* context, char const* proxy ) 1

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Problems with Data Types, Low Severity 25

	Change	Effect
1	Value of member WSI_TOKEN_COUNT has been changed from 84 to 86.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

	Change	Effect
1	Field method has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Field parent_wsi has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
3	Field pwsi has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
4	Field uri_replace_from has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
5	Field uri_replace_to has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
6	Field vhost has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
7	Size of this type has been changed from 112 bytes to 160 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Field ecdh_curve has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Field headers has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
3	Field keepalive_timeout has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
4	Field log_filepath has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
5	Field mounts has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
6	Field plugin_dirs has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
7	Field pt_serv_buf_size has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
8	Field pvo has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
9	Field server_string has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
10	Field ssl_options_clear has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
11	Field ssl_options_set has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
12	Field vhost_name has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
13	Field ws_ping_pong_interval has been added to this type.	1) This field will not be initialized by old clients. 2) Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
14	Size of this type has been changed from 216 bytes to 320 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.
15	Field max_http_header_data2 has been added to this type.	This field will not be initialized by old clients. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.

	Change	Effect
1	Size of this type has been changed from 168 bytes to 172 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.
2	Type of field token_limit has been changed from unsigned short[84] to unsigned short[86].	Replacement of the field data type may indicate a change in the semantic meaning of the field.

libwebsockets.h
[+] enum lws_token_indexes 1
[+] struct lws_client_connect_info 7
[+] struct lws_context_creation_info 15
[+] struct lws_token_limits 2

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Problems with Symbols, Low Severity 1

	Change	Effect
1	1st parameter context has been renamed to vhost.	Renaming of a parameter may indicate a change in its semantic meaning.

libwebsockets.h, libwebsockets.so.7.1
[+] lws_set_proxy ( struct lws_context* context, char const* proxy ) 1

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Other Changes in Data Types 8

	Change	Effect
1	The member LWS_EXT_CB_NAMED_OPTION_SET with value 26 has been added.	No effect.

	Change	Effect
1	The member WSI_TOKEN_HTTP1_0 with value 79 has been added.	No effect.
2	The member _WSI_TOKEN_CLIENT_METHOD with value 85 has been added.	No effect.

	Change	Effect
1	The member PENDING_TIMEOUT_CGI with value 14 has been added.	No effect.
2	The member PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD with value 18 has been added.	No effect.
3	The member PENDING_TIMEOUT_HTTP_KEEPALIVE_IDLE with value 15 has been added.	No effect.
4	The member PENDING_TIMEOUT_WS_PONG_CHECK_GET_PONG with value 17 has been added.	No effect.
5	The member PENDING_TIMEOUT_WS_PONG_CHECK_SEND_PING with value 16 has been added.	No effect.

libwebsockets.h
[+] enum lws_extension_callback_reasons 1
[+] enum lws_token_indexes 2
[+] enum pending_timeout 5

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Header Files 1

libwebsockets.h

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Source Files 16

alloc.c
base64-decode.c
client-handshake.c
context.c
extension-permessage-deflate.c
extension.c
handshake.c
header.c
libwebsockets.c
lws-plat-unix.c
output.c
parsers.c
pollfd.c
server.c
service.c
sha-1.c

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Objects 1

libwebsockets.so.7.1

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