Manpages - libssh2_trace_sethandler.3

libssh2_trace_sethandler - set a trace output handler

  #include <libssh2.h>

  typedef void (*libssh2_trace_handler_func)(LIBSSH2_SESSION *session,
                                             void* context,
                                             const char *data,
                                             size_t length);

  int libssh2_trace_sethandler(LIBSSH2_SESSION *session,
                               void* context,
                               libssh2_trace_handler_func callback);

libssh2_trace_sethandler installs a trace output handler for your application. By default, when tracing has been switched on via a call to libssh2_trace(), all output is written to stderr. By calling this method and passing a function pointer that matches the libssh2_trace_handler_func prototype, libssh2 will call back as it generates trace output. This can be used to capture the trace output and put it into a log file or diagnostic window. This function has no effect unless libssh2 was built to support this option, and a typical “release build” might not.

context can be used to pass arbitrary user defined data back into the callback when invoked.

Added in libssh2 version 1.2.3