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Annotation of ansh/src/ansh.c, revision 1.3

1.1       misho       1: /*************************************************************************
                      2:  * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
                      3:  *  by Michael Pounov <misho@elwix.org>
                      4:  *
                      5:  * $Author: misho $
1.3     ! misho       6:  * $Id: ansh.c,v 1.2.8.1 2013/01/18 09:31:47 misho Exp $
1.1       misho       7:  *
1.2       misho       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: 
1.3     ! misho      15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013
1.2       misho      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: */
1.1       misho      46: #include "global.h"
                     47: #include "ansh.h"
                     48: 
                     49: 
1.2       misho      50: intptr_t Kill;
                     51: int Timeout, Verbose;
                     52: u_int Crypted;
                     53: char Key[STRSIZ];
1.1       misho      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"
1.2       misho      64:                "\t-t <timeout>\tClient session timeout (default is 0 sec)\n"
                     65:                "\t-k <key>\tService cipher key\n"
1.1       misho      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;
1.3     ! misho      77:        struct e_ether_addr ea;
1.2       misho      78: 
                     79:        srandomdev();
                     80:        do {
                     81:                Crypted = (u_int) random() % UINT_MAX;
                     82:        } while (!Crypted);
1.1       misho      83: 
                     84:        Get1stEth(szDev, STRSIZ);
                     85: 
1.2       misho      86:        strlcpy(Key, DEFAULT_KEY, sizeof Key);
                     87: 
                     88:        while ((ch = getopt(argc, argv, "hvut:d:k:")) != -1)
1.1       misho      89:                switch (ch) {
1.2       misho      90:                        case 't':
                     91:                                Timeout = abs(strtol(optarg, NULL, 0));
                     92:                                break;
1.1       misho      93:                        case 'd':
                     94:                                strlcpy(szDev, optarg, sizeof szDev);
                     95:                                break;
1.2       misho      96:                        case 'k':
                     97:                                strlcpy(Key, optarg, sizeof Key);
1.1       misho      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:        }
1.3     ! misho     116:        if (!e_ether_aton(argv[0], &ea)) {
1.1       misho     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: 
1.2       misho     127:        ConnectL2(h, &ea, len);
1.1       misho     128: 
1.2       misho     129:        VERB(1) printf("\r\nFinish client.\r\n");
1.1       misho     130:        close(h);
                    131:        return 0;
                    132: }