ssh2/docs/libssh2_trace_sethandler.3
Dave McCaldon f077984394 Pass user context through libssh2_trace_sethandler() to callback
The libssh2_trace_sethandler() call allows the user to handle the output of libssh2 rather than having it written to stderr.  This patch updates libssh2_trace_sethandler() to allow a user-defined void* context value to be passed back to the output handler.
2010-01-20 19:42:09 +01:00

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.\" $Id: libssh2_trace_sethandler.3,v 1.1 2008/12/26 07:46:45 bagder Exp $
.\"
.TH libssh2_trace_sethandler 3 "15 Jan 2010" "libssh2 1.2.3" "libssh2 manual"
.SH NAME
libssh2_trace_sethandler - set a trace output handler
.SH SYNOPSIS
.nf
#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);
.SH DESCRIPTION
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.
\fBcontext\fP can be used to pass arbitrary user defined data back into the callback when invoked.
.SH AVAILABILITY
Added in libssh2 version 1.2.3