Return to ansh.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / ansh / src

version 2.0

    1: /*************************************************************************
    2:  * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
    3:  *  by Michael Pounov <misho@elwix.org>
    4:  *
    5:  * $Author: misho $
    6:  * $Id: ansh.c,v 1.3 2015/05/19 23:25:30 misho Exp $
    7:  *
    8:  *************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #include "global.h"
   47: #include "ansh.h"
   48: 
   49: 
   50: intptr_t Kill;
   51: int Timeout, Verbose;
   52: u_int Crypted;
   53: char Key[STRSIZ];
   54: 
   55: extern char compiled[], compiledby[], compilehost[];
   56: 
   57: static void
   58: Usage()
   59: {
   60: 	printf(	" -= ansh =- ELWIX Layer2 remote management client\n"
   61: 		"=== %s === %s@%s ===\n\n"
   62: 		" Syntax: ansh [options] <connect2host>\n\n"
   63: 		"\t-d <dev>\tBind to host interface, like 'em0' (default is first host interface)\n"
   64: 		"\t-t <timeout>\tClient session timeout (default is 0 sec)\n"
   65: 		"\t-k <key>\tService cipher key\n"
   66: 		"\t-u\t\tSwitch to unencrypted traffic between hosts\n"
   67: 		"\t-v\t\tVerbose (more -v, more verbosity ...)\n"
   68: 		"\t-h\t\tThis help screen!\n"
   69: 		"\n", compiled, compiledby, compilehost);
   70: }
   71: 
   72: int
   73: main(int argc, char **argv)
   74: {
   75: 	char ch, szDev[STRSIZ] = { 0 };
   76: 	int h, len;
   77: 	struct e_ether_addr ea;
   78: 
   79: 	srandomdev();
   80: 	do {
   81: 		Crypted = (u_int) random() % UINT_MAX;
   82: 	} while (!Crypted);
   83: 
   84: 	Get1stEth(szDev, STRSIZ);
   85: 
   86: 	strlcpy(Key, DEFAULT_KEY, sizeof Key);
   87: 
   88: 	while ((ch = getopt(argc, argv, "hvut:d:k:")) != -1)
   89: 		switch (ch) {
   90: 			case 't':
   91: 				Timeout = abs(strtol(optarg, NULL, 0));
   92: 				break;
   93: 			case 'd':
   94: 				strlcpy(szDev, optarg, sizeof szDev);
   95: 				break;
   96: 			case 'k':
   97: 				strlcpy(Key, optarg, sizeof Key);
   98: 				break;
   99: 			case 'u':
  100: 				Crypted ^= Crypted;
  101: 				break;
  102: 			case 'v':
  103: 				Verbose++;
  104: 				break;
  105: 			case 'h':
  106: 			default:
  107: 				Usage();
  108: 				return 1;
  109: 		}
  110: 	argc -= optind;
  111: 	argv += optind;
  112: 	if (!argc) {
  113: 		printf("Error:: not specified mac for connect ...\n");
  114: 		return 1;
  115: 	}
  116: 	if (!e_ether_aton(argv[0], &ea)) {
  117: 		printf("Error:: invalid mac ...\n");
  118: 		return 1;
  119: 	}
  120: 
  121: 	h = PrepareL2(szDev, &len);
  122: 	if (h == -1) {
  123: 		printf("Error:: Descriptor not opened ... \n");
  124: 		return 1;
  125: 	}
  126: 
  127: 	ConnectL2(h, &ea, len);
  128: 
  129: 	VERB(1) printf("\r\nFinish client.\r\n");
  130: 	close(h);
  131: 	return 0;
  132: }