/* Author: Joshua Brindle 

 *         Jason Tang     <jtang@tresys.com>

 *         Ivan Gyurdiev  <ivg2@cornell.edu> 

 *

 * Copyright (C) 2004-2005 Tresys Technology, LLC

 * Copyright (C) 2005 Red Hat Inc.

 *

 *  This library is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU Lesser General Public

 *  License as published by the Free Software Foundation; either

 *  version 2.1 of the License, or (at your option) any later version.

 *

 *  This library is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 *  Lesser General Public License for more details.

 *

 *  You should have received a copy of the GNU Lesser General Public

 *  License along with this library; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <stdarg.h>

#include <stdlib.h>

#include <stdio.h>

#include <errno.h>

#include <string.h>

#include "handle.h"

#include "debug.h"

int semanage_msg_get_level(semanage_handle_t * handle)

{

	return handle->msg_level;

}

hidden_def(semanage_msg_get_level)

const char *semanage_msg_get_channel(semanage_handle_t * handle)

{

	return handle->msg_channel;

}

hidden_def(semanage_msg_get_channel)

const char *semanage_msg_get_fname(semanage_handle_t * handle)

{

	return handle->msg_fname;

}

hidden_def(semanage_msg_get_fname)

#ifdef __GNUC__

    __attribute__ ((format(printf, 3, 4)))

#endif

void hidden semanage_msg_default_handler(void *varg __attribute__ ((unused)),

					 semanage_handle_t * handle,

					 const char *fmt, ...)

{

	FILE *stream = NULL;

	int errsv = 0;

	switch (semanage_msg_get_level(handle)) {

	case SEMANAGE_MSG_ERR:

		stream = stderr;

		errsv = errno;

		break;

	case SEMANAGE_MSG_WARN:

		stream = stderr;

		break;

	default:

		stream = stdout;

		break;

	}

	fprintf(stream, "%s.%s: ",

		semanage_msg_get_channel(handle),

		semanage_msg_get_fname(handle));

	va_list ap;

	va_start(ap, fmt);

	vfprintf(stream, fmt, ap);

	va_end(ap);

	if (errsv && errsv != ENOMEM)

		fprintf(stream, " (%s).", strerror(errsv));

	fprintf(stream, "\n");

}

#ifdef __GNUC__

__attribute__ ((format(printf, 3, 4)))

#endif

void hidden semanage_msg_relay_handler(void *varg,

				       sepol_handle_t * sepolh,

				       const char *fmt, ...)

{

	va_list ap;

	semanage_handle_t *sh = varg;

	char buffer[1024];

	if (!sh->msg_callback)

		return;

	va_start(ap, fmt);

	vsnprintf(buffer, sizeof(buffer), fmt, ap);

	va_end(ap);

	sh->msg_fname = sepol_msg_get_fname(sepolh);

	sh->msg_channel = sepol_msg_get_channel(sepolh);

	sh->msg_level = sepol_msg_get_level(sepolh);	/* XXX should map values */

	sh->msg_callback(sh->msg_callback_arg, sh, "%s", buffer);

	return;

}

extern void semanage_msg_set_callback(semanage_handle_t * handle,

#ifdef __GNUC__

				      __attribute__ ((format(printf, 3, 4)))

#endif

				      void (*msg_callback) (void *varg,

							    semanage_handle_t *

							    handle,

							    const char *fmt,

							    ...),

				      void *msg_callback_arg)

{

	handle->msg_callback = msg_callback;

	handle->msg_callback_arg = msg_callback_arg;

}