/* -*- mode: c; c-file-style: "openbsd" -*- */

/*

 * Copyright (c) 2016 Vincent Bernat <bernat@luffy.cx>

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#if HAVE_CONFIG_H

# include <config.h>

#endif

#include <stdio.h>

#include "compat/compat.h"

static void

version_display_array(FILE *destination, const char *prefix, const char *const *items)

{

	fprintf(destination, "%s", prefix);

	size_t count = 0;

	for (const char *const *p = items; *p; p++, count++)

		fprintf(destination, "%s%s", count?", ":"", *p);

	if (count == 0)

		fprintf(destination, "(none)\n");

	else

		fprintf(destination, "\n");

}

void

version_display(FILE *destination, const char *progname, int verbose)

{

	if (!verbose) {

		fprintf(destination, "%s\n", PACKAGE_VERSION);

		return;

	}

	const char *const lldp_features[] = {

#ifdef ENABLE_LLDPMED

		"LLDP-MED",

#endif

#ifdef ENABLE_DOT1

		"Dot1",

#endif

#ifdef ENABLE_DOT3

		"Dot3",

#endif

#ifdef ENABLE_CUSTOM

		"Custom TLV",

#endif

		NULL};

	const char *const protocols[] = {

#ifdef ENABLE_CDP

		"CDP",

#endif

#ifdef ENABLE_FDP

		"FDP",

#endif

#ifdef ENABLE_EDP

		"EDP",

#endif

#ifdef ENABLE_SONMP

		"SONMP",

#endif

		NULL};

	const char *const output_formats[] = {

		"TEXT",

		"KV",

		"JSON",

#ifdef USE_XML

		"XML",

#endif

		NULL};

	fprintf(destination, "%s %s\n", progname, PACKAGE_VERSION);

	fprintf(destination, "  Built on " BUILD_DATE "\n");

	fprintf(destination, "\n");

	/* Features */

	if (!strcmp(progname, "lldpd")) {

		version_display_array(destination,

		    "Additional LLDP features:    ", lldp_features);

		version_display_array(destination,

		    "Additional protocols:        ", protocols);

		fprintf(destination,

		    "SNMP support:                "

#ifdef USE_SNMP

		    "yes\n"

#else

		    "no\n"

#endif

			);

#ifdef HOST_OS_LINUX

		fprintf(destination,

		    "Old kernel support:          "

#ifdef ENABLE_OLDIES

		    "yes"

#else

		    "no"

#endif

		    " (Linux " MIN_LINUX_KERNEL_VERSION "+)\n");

#endif

#ifdef ENABLE_PRIVSEP

		fprintf(destination,

		    "Privilege separation:        " "enabled\n");

		fprintf(destination,

		    "Privilege separation user:   " PRIVSEP_USER "\n");

		fprintf(destination,

		    "Privilege separation group:  " PRIVSEP_GROUP "\n");

		fprintf(destination,

		    "Privilege separation chroot: " PRIVSEP_CHROOT "\n");

#else

		fprintf(destination,

		    "Privilege separation:        " "disabled\n");

#endif

		fprintf(destination,

		    "Configuration directory:     " SYSCONFDIR "\n");

	}

	if (!strcmp(progname, "lldpcli")) {

		version_display_array(destination,

		    "Additional output formats:   ", output_formats);

	}

	fprintf(destination, "\n");

	/* Build */

	fprintf(destination,

	    "C compiler command: %s\n", LLDP_CC);

	fprintf(destination,

	    "Linker command:     %s\n", LLDP_LD);

}