src/bsp/lk/lib/lwip/cmd.c

/*
 * Copyright (c) 2013 Corey Tabaka
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#if defined(WITH_LIB_CONSOLE)
#include <lib/console.h>

#include <stdio.h>
#include <string.h>
#include <lwip/api.h>
#include <lwip/ip_addr.h>

static int net_cmd(int argc, const cmd_args *argv)
{
	if (argc < 2) {
		printf("%s commands:\n", argv[0].str);
usage:
		printf("%s lookup <hostname>\n", argv[0].str);
		goto out;
	}

	if (!strcmp(argv[1].str, "lookup")) {
		if (argc < 3)
			goto usage;

		ip_addr_t ip_addr;
		const char *hostname = argv[2].str;
		err_t err;

		err = netconn_gethostbyname(hostname, &ip_addr);
		if (err != ERR_OK) {
			printf("Failed to resolve host: %d\n", err);
		} else {
			printf("%s: %u.%u.%u.%u\n", hostname,
					ip4_addr1_16(&ip_addr),
					ip4_addr2_16(&ip_addr),
					ip4_addr3_16(&ip_addr),
					ip4_addr4_16(&ip_addr));
		}
	}

out:
	return 0;
}

STATIC_COMMAND_START
STATIC_COMMAND("net", "net toolbox", &net_cmd)
STATIC_COMMAND_END(net);

#endif