1/*
2 * Dropbear - a SSH2 server
3 * SSH client implementation
4 *
5 * Copyright (c) 2002,2003 Matt Johnston
6 * Copyright (c) 2004 by Mihnea Stoenescu
7 * All rights reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE. */
26
27#include "includes.h"
28#include "dbutil.h"
29#include "runopts.h"
30#include "session.h"
31
32static void cli_dropbear_exit(int exitcode, const char* format, va_list param);
33static void cli_dropbear_log(int priority, const char* format, va_list param);
34
35#if defined(DBMULTI_dbclient) || !defined(DROPBEAR_MULTI)
36#if defined(DBMULTI_dbclient) && defined(DROPBEAR_MULTI)
37int cli_main(int argc, char ** argv) {
38#else
39int main(int argc, char ** argv) {
40#endif
41
42	int sock;
43	char* error = NULL;
44	char* hostandport;
45	int len;
46
47	_dropbear_exit = cli_dropbear_exit;
48	_dropbear_log = cli_dropbear_log;
49
50	putenv("HOME=/data/local");
51
52	disallow_core();
53
54	cli_getopts(argc, argv);
55
56	TRACE(("user='%s' host='%s' port='%s'", cli_opts.username,
57				cli_opts.remotehost, cli_opts.remoteport))
58
59	if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
60		dropbear_exit("signal() error");
61	}
62
63	sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport,
64			0, &error);
65
66	if (sock < 0) {
67		dropbear_exit("%s", error);
68	}
69
70	/* Set up the host:port log */
71	len = strlen(cli_opts.remotehost);
72	len += 10; /* 16 bit port and leeway*/
73	hostandport = (char*)m_malloc(len);
74	snprintf(hostandport, len, "%s:%s",
75			cli_opts.remotehost, cli_opts.remoteport);
76
77	cli_session(sock, hostandport);
78
79	/* not reached */
80	return -1;
81}
82#endif /* DBMULTI stuff */
83
84static void cli_dropbear_exit(int exitcode, const char* format, va_list param) {
85
86	char fmtbuf[300];
87
88	if (!sessinitdone) {
89		snprintf(fmtbuf, sizeof(fmtbuf), "exited: %s",
90				format);
91	} else {
92		snprintf(fmtbuf, sizeof(fmtbuf),
93				"connection to %s@%s:%s exited: %s",
94				cli_opts.username, cli_opts.remotehost,
95				cli_opts.remoteport, format);
96	}
97
98	/* Do the cleanup first, since then the terminal will be reset */
99	cli_session_cleanup();
100	common_session_cleanup();
101
102	_dropbear_log(LOG_INFO, fmtbuf, param);
103
104	exit(exitcode);
105}
106
107static void cli_dropbear_log(int UNUSED(priority),
108		const char* format, va_list param) {
109
110	char printbuf[1024];
111
112	vsnprintf(printbuf, sizeof(printbuf), format, param);
113
114	fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf);
115
116}
117