Functions
Logging

Functions

WOLFSSL_API int wolfSSL_SetLoggingCb (wolfSSL_Logging_cb log_function)
 This function registers a logging callback that will be used to handle the wolfSSL log message. By default, if the system supports it fprintf() to stderr is used but by using this function anything can be done by the user. More...
 

Detailed Description

Function Documentation

◆ wolfSSL_SetLoggingCb()

WOLFSSL_API int wolfSSL_SetLoggingCb ( wolfSSL_Logging_cb  log_function)

This function registers a logging callback that will be used to handle the wolfSSL log message. By default, if the system supports it fprintf() to stderr is used but by using this function anything can be done by the user.

Returns
Success If successful this function will return 0.
BAD_FUNC_ARG is the error that will be returned if a function pointer is not provided.
Parameters
log_functionfunction to register as a logging callback. Function signature must follow the above prototype.

Example

int ret = 0;
// Logging callback prototype
void MyLoggingCallback(const int logLevel, const char* const logMessage);
// Register the custom logging callback with wolfSSL
ret = wolfSSL_SetLoggingCb(MyLoggingCallback);
if (ret != 0) {
// failed to set logging callback
}
void MyLoggingCallback(const int logLevel, const char* const logMessage)
{
// custom logging function
}
See also
wolfSSL_Debugging_ON
wolfSSL_Debugging_OFF