/*-
 * sdpcontrol.c
 *
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id: sdpcontrol.c,v 1.1 2003/09/08 02:27:27 max Exp $
 */

#include <assert.h>
#define L2CAP_SOCKET_CHECKED
#include <bluetooth.h>
#include <err.h>
#include <errno.h>
#include <sdp.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "sdpcontrol.h"

/* Prototypes */
static int                  do_sdp_command      (bdaddr_p, char const *, int,
                                                 int, char **);
static struct sdp_command * find_sdp_command    (char const *,
                                                 struct sdp_command *); 
static void                 print_sdp_command   (struct sdp_command *);
static void                 usage               (void);

/* Main */
int
main(int argc, char *argv[])
{
        char const      *control = SDP_LOCAL_PATH;
        int              n, local;
        bdaddr_t         bdaddr;

        memset(&bdaddr, 0, sizeof(bdaddr));
        local = 0;

        /* Process command line arguments */
        while ((n = getopt(argc, argv, "a:c:lh")) != -1) {
                switch (n) {
                case 'a': /* bdaddr */
                        if (!bt_aton(optarg, &bdaddr)) {
                                struct hostent  *he = NULL;

                                if ((he = bt_gethostbyname(optarg)) == NULL)
                                        errx(1, "%s: %s", optarg, hstrerror(h_errno));
 
                                memcpy(&bdaddr, he->h_addr, sizeof(bdaddr));
                        }
                        break;

                case 'c': /* control socket */
                        control = optarg;
                        break;

                case 'l': /* local sdpd */
                        local = 1;
                        break;

                case 'h':
                default:
                        usage();
                        /* NOT REACHED */
                }
        }

        argc -= optind; 
        argv += optind;

        if (*argv == NULL)
                usage();

        return (do_sdp_command(&bdaddr, control, local, argc, argv));
}

/* Execute commands */
static int
do_sdp_command(bdaddr_p bdaddr, char const *control, int local,
                int argc, char **argv)
{
        char                    *cmd = argv[0];
        struct sdp_command      *c = NULL;
        void                    *xs = NULL;
        int                      e, help;

        help = 0;
        if (strcasecmp(cmd, "help") == 0) {
                argc --;
                argv ++;

                if (argc <= 0) {
                        fprintf(stdout, "Supported commands:\n");
                        print_sdp_command(sdp_commands);
                        fprintf(stdout, "\nFor more information use " \
                                "'help command'\n");

                        return (OK);
                }

                help = 1;
                cmd = argv[0];
        }

        c = find_sdp_command(cmd, sdp_commands);
        if (c == NULL) {
                fprintf(stdout, "Unknown command: \"%s\"\n", cmd);
                return (ERROR);
        }

        if (!help) {
                if (!local) {
                        if (memcmp(bdaddr, NG_HCI_BDADDR_ANY, sizeof(*bdaddr)) == 0)
                                usage();

                        xs = sdp_open(NG_HCI_BDADDR_ANY, bdaddr);
                } else
                        xs = sdp_open_local(control);

                if (xs == NULL)
                        errx(1, "Could not create SDP session object");
                if (sdp_error(xs) == 0)
                        e = (c->handler)(xs, -- argc, ++ argv);
                else
                        e = ERROR;
        } else
                e = USAGE;

        switch (e) {
        case OK:
        case FAILED:
                break;

        case ERROR:
                fprintf(stdout, "Could not execute command \"%s\". %s\n",
                        cmd, strerror(sdp_error(xs)));
                break;

        case USAGE:
                fprintf(stdout, "Usage: %s\n%s\n", c->command, c->description);
                break;

        default: assert(0); break;
        }

        sdp_close(xs);

        return (e);
} /* do_sdp_command */

/* Try to find command in specified category */
static struct sdp_command *
find_sdp_command(char const *command, struct sdp_command *category)   
{
        struct sdp_command      *c = NULL;

        for (c = category; c->command != NULL; c++) {
                char    *c_end = strchr(c->command, ' ');

                if (c_end != NULL) {
                        int     len = c_end - c->command;

                        if (strncasecmp(command, c->command, len) == 0)
                                return (c);
                } else if (strcasecmp(command, c->command) == 0)
                                return (c);
        }

        return (NULL);
} /* find_sdp_command */

/* Print commands in specified category */
static void
print_sdp_command(struct sdp_command *category)
{
        struct sdp_command      *c = NULL;

        for (c = category; c->command != NULL; c++)
                fprintf(stdout, "\t%s\n", c->command);
} /* print_sdp_command */

/* Usage */
static void
usage(void)
{
        fprintf(stderr,
"Usage: sdpcontrol options command\n" \
"Where options are:\n"
"       -a address      address to connect to\n" \
"       -c path         path to the control socket (default is %s)\n" \
"       -h              display usage and quit\n" \
"       -l              connect to the local SDP server via control socket\n" \
"       command         one of the supported commands\n", SDP_LOCAL_PATH);
        exit(255);
} /* usage */