lookup.c   [plain text]

/*
 * Copyright (c) 2000, Boris Popov
 * All rights reserved.
 *
 * Portions Copyright (C) 2005 - 2007 Apple Inc. 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by Boris Popov.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * 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.
 *
 */
#include <sys/param.h>
#include <sys/errno.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <err.h>
#include <stdio.h>
#include <unistd.h>
#include <strings.h>
#include <stdlib.h>
#include <sysexits.h>

#include <netinet/in.h>
#include <arpa/inet.h>

#include <cflib.h>

#include <netsmb/netbios.h>
#include <netsmb/smb_lib.h>
#include <netsmb/nb_lib.h>
#include <netsmb/smb_conn.h>
#include <charsets.h>

#include "common.h"


int
cmd_lookup(int argc, char *argv[])
{
	struct rcfile *smb_rc;
	struct nb_ctx ctx;
	struct sockaddr *sap;
	char *hostname;
	int opt;

	if (argc < 2)
		lookup_usage();
	bzero(&ctx, sizeof(struct nb_ctx));
	smb_rc = smb_open_rcfile(FALSE);
	if (smb_rc) {
		if (nb_ctx_readrcsection(smb_rc, &ctx, "default", 0) != 0)
			exit(1);
		nb_ctx_readcodepage(smb_rc, "default");
		rc_close(smb_rc);
		smb_rc = NULL;
	}
	while ((opt = getopt(argc, argv, "w:")) != EOF) {
		switch(opt){
		    case 'w':
			nb_ctx_set_wins_name(&ctx, optarg);
			break;
		    default:
			lookup_usage();
			/*NOTREACHED*/
		}
	}
	if (optind >= argc)
		lookup_usage();
	if (nb_ctx_resolve(&ctx) != 0)
		exit(1);
	hostname = convert_utf8_to_wincs(argv[argc - 1]);
	if (hostname == NULL)
		err(EX_NOHOST, "unable to encode %s", argv[argc - 1]);

	errno = nbns_resolvename(hostname, &ctx, &sap,  TRUE, NBSS_TCP_PORT_139);
	free(hostname);	/* Done with the converted version */
	hostname = argv[argc - 1];
	if (errno)
		err(EX_NOHOST, "unable to resolve %s", hostname);

	fprintf(stdout, "Got response from %s\n", inet_ntoa(ctx.nb_lastns.sin_addr));
	fprintf(stdout, "IP address of %s: %s\n", hostname, inet_ntoa(((struct sockaddr_in*)sap)->sin_addr));
	nb_ctx_done(&ctx);
	return 0;
}


void
lookup_usage(void)
{
	fprintf(stderr, "usage: smbutil lookup [-w host] name\n");
	exit(1);
}