This function sets options for the specified socket.

Syntax

int setsockopt(
  SOCKET sock, 
  unsigned char u8Level, 
  unsigned char option_name, 
  const void *option_value, 
  unsigned short u16OptionLen
);

Parameters

sock

[in] Socket descriptor

u8Level

[in] Specifies the protocol level.

Value	Description
SOL_SOCKET	Socket option.
SOL_SSL_SOCKET	SSL option.

option_name

[in] Specify the options.

Value	Description
[u8Level = SOL_SOCKET]	SO_SET_UDP_SEND_CALLBACK： Enables / disables UDP callbacks.
[u8Level = SOL_SSL_SOCKET]	SO_SSL_BYPASS_X509_VERIF： Allows the socket to bypass the X509 certificate validation process.

option_value

[in] Specify the pointer of the setting value.

Value	Description
[u8Level = SOL_SOCKET option_name = SO_SET_UDP_SEND_CALLBACK]	Specifies a pointer to an int type setting value that indicates Enable / Disable. 1:ENABLE 0:DISABLE
[u8Level = SOL_SSL_SOCKET option_name = SO_SSL_BYPASS_X509_VERIF]	Specifies a pointer to an int type setting value that indicates Enable / Disable. 1:ENABLE 0:DISABLE

u16OptionLen

[in] Specify the size (bytes) of the set value.

The following values will be returned.

Value	Description
SOCK_ERR_NO_ERROR	Succeeded
M2M_ERR_SLEEP_FAIL	Initialize with SysWLANInit function.
Other than the above	Failed

Sets options for the specified socket.

Header file:

lib.h

Library file:

libSTARTUPOPH5000.a

Last updated: 2020/11/26