/* -*- 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"

#include "log.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);

}