1: /*************************************************************************
2: * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
6: * $Id: ansh3.c,v 1.1.1.1.2.2 2011/10/07 13:41:26 misho Exp $
7: *
8: *************************************************************************/
9: #include "global.h"
10: #include "ansh.h"
11:
12:
13: int Timeout, Verbose, Kill;
14: u_int Crypted;
15:
16: extern char compiled[], compiledby[], compilehost[];
17:
18: static void
19: Usage()
20: {
21: printf( " -= ansh =- ELWIX Layer3 remote management client over ICMP\n"
22: "=== %s === %s@%s ===\n\n"
23: " Syntax: ansh [options] <connect2host>\n\n"
24: "\t-i <id>\tService ID (default is 42)\n"
25: "\t-t <timeout>\tClient session timeout (default is 0 sec)\n"
26: "\t-u\t\tSwitch to unencrypted traffic between hosts\n"
27: "\t-v\t\tVerbose (more -v, more verbosity ...)\n"
28: "\t-h\t\tThis help screen!\n"
29: "\n", compiled, compiledby, compilehost);
30: }
31:
32: int
33: main(int argc, char **argv)
34: {
35: struct sockaddr sa = { 0 };
36: struct sockaddr_in *sin4 = (struct sockaddr_in*) &sa;
37: struct sockaddr_in6 *sin6 = (struct sockaddr_in6*) &sa;
38: struct hostent *host;
39: char ch;
40: int h, len;
41: u_short id = ANSH_ID;
42:
43: srandomdev();
44: do {
45: Crypted = (u_int) random() % UINT_MAX;
46: } while (!Crypted);
47:
48: while ((ch = getopt(argc, argv, "hvui:t:")) != -1)
49: switch (ch) {
50: case 't':
51: Timeout = abs(strtol(optarg, NULL, 0));
52: break;
53: case 'i':
54: id = strtol(optarg, NULL, 0);
55: break;
56: case 'u':
57: Crypted ^= Crypted;
58: break;
59: case 'v':
60: Verbose++;
61: break;
62: case 'h':
63: default:
64: Usage();
65: return 1;
66: }
67: argc -= optind;
68: argv += optind;
69: if (!argc) {
70: printf("Error:: not specified address for connect ...\n");
71: return 1;
72: }
73:
74: host = gethostbyname(argv[0]);
75: if (!host) {
76: printf("Error:: in bind address '%s' #%d - %s\n",
77: argv[0], h_errno, hstrerror(h_errno));
78: return 1;
79: }
80: switch (host->h_addrtype) {
81: case AF_INET:
82: sin4->sin_len = sizeof(struct sockaddr_in);
83: sin4->sin_family = AF_INET;
84: memcpy(&sin4->sin_addr.s_addr, host->h_addr, host->h_length);
85: break;
86: case AF_INET6:
87: sin6->sin6_len = sizeof(struct sockaddr_in6);
88: sin6->sin6_family = AF_INET6;
89: memcpy(&sin6->sin6_addr.s6_addr, host->h_addr, host->h_length);
90: break;
91: default:
92: printf("Error:: Unknown address type %d !!!\n", host->h_addrtype);
93: return 1;
94: }
95:
96: h = PrepareL3(&sa, &len);
97: if (h == -1) {
98: printf("Error:: Descriptor not opened ... \n");
99: return 1;
100: }
101:
102: ConnectL3(h, id, &sa, len);
103:
104: VERB(1) printf("\nFinish client.\n");
105: close(h);
106: return 0;
107: }
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