/*********************************************************************************************************
* Software License Agreement (BSD License)                                                               *
* Author: Luke Mewburn <luke@mewburn.net>								 *
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* Copyright (c) 2020, WIDE Project and NICT								 *
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/*
 * Dump Diameter dictionary (using fd_dict_dump()) to a file or the log.
 *
 * If conffile is provided, write the dump to that file,
 * otherwise write to log.
 */

#include <freeDiameter/extension.h>

static int dbg_dict_dump_entry(char * conffile)
{
	TRACE_ENTRY("%p", conffile);

	FILE * out = NULL;
	if (conffile) {
		LOG_N("Dictionary dump to file '%s'", conffile);
		out = fopen(conffile, "w");
		if (NULL == out) {
			LOG_E("Cannot open output file '%s' for writing", conffile);
			return EINVAL;
		}
	} else {
		LOG_N("Dictionary dump to log");
	}

	char * tbuf = NULL; size_t tbuflen = 0;
	if (NULL == fd_dict_dump(&tbuf, &tbuflen, NULL, fd_g_config->cnf_dict)) {
		LOG_E("Cannot dump dictionary");
	} else if (out) {
		fprintf(out, "%s\n", tbuf);
	} else {
		LOG_N("%s", fd_dict_dump(&tbuf, &tbuflen, NULL, fd_g_config->cnf_dict));
	}
	free(tbuf);
	if (out) {
		fclose(out);
		out = NULL;
	}

	LOG_N("Dictionary dump completed");
	return 0;
}

void fd_ext_fini(void)
{
	TRACE_ENTRY();

	/* Nothing to do */
	return;
}

EXTENSION_ENTRY("dbg_dict_dump", dbg_dict_dump_entry);