Mercurial > dropbear
annotate cli-main.c @ 447:278805938dcf
Patch from Nicolai Ehemann to try binding before going to the background,
so that if it exits early (because something's already listening etc)
then it will return an exitcode of 1.
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 19 Jul 2007 15:54:18 +0000 |
parents | 1afa503e33f5 |
children | e3db1f7a2e43 |
rev | line source |
---|---|
74
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1 /* |
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2 * Dropbear - a SSH2 server |
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3 * SSH client implementation |
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4 * |
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5 * Copyright (c) 2002,2003 Matt Johnston |
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6 * Copyright (c) 2004 by Mihnea Stoenescu |
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7 * All rights reserved. |
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8 * |
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9 * Permission is hereby granted, free of charge, to any person obtaining a copy |
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10 * of this software and associated documentation files (the "Software"), to deal |
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11 * in the Software without restriction, including without limitation the rights |
e3adf4cf5465
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12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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13 * copies of the Software, and to permit persons to whom the Software is |
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14 * furnished to do so, subject to the following conditions: |
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15 * |
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16 * The above copyright notice and this permission notice shall be included in |
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17 * all copies or substantial portions of the Software. |
e3adf4cf5465
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18 * |
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19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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25 * SOFTWARE. */ |
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26 |
33 | 27 #include "includes.h" |
28 #include "dbutil.h" | |
29 #include "runopts.h" | |
30 #include "session.h" | |
26 | 31 |
33 | 32 static void cli_dropbear_exit(int exitcode, const char* format, va_list param); |
33 static 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) | |
37 int cli_main(int argc, char ** argv) { | |
38 #else | |
26 | 39 int main(int argc, char ** argv) { |
33 | 40 #endif |
26 | 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 | |
425 | 50 disallow_core(); |
51 | |
26 | 52 cli_getopts(argc, argv); |
53 | |
33 | 54 TRACE(("user='%s' host='%s' port='%s'", cli_opts.username, |
165
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Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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55 cli_opts.remotehost, cli_opts.remoteport)) |
33 | 56 |
109
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57 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { |
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58 dropbear_exit("signal() error"); |
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59 } |
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60 |
26 | 61 sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport, |
62 0, &error); | |
63 | |
64 if (sock < 0) { | |
65 dropbear_exit("%s", error); | |
66 } | |
67 | |
68 /* Set up the host:port log */ | |
69 len = strlen(cli_opts.remotehost); | |
70 len += 10; /* 16 bit port and leeway*/ | |
71 hostandport = (char*)m_malloc(len); | |
33 | 72 snprintf(hostandport, len, "%s:%s", |
26 | 73 cli_opts.remotehost, cli_opts.remoteport); |
74 | |
75 cli_session(sock, hostandport); | |
76 | |
77 /* not reached */ | |
78 return -1; | |
79 } | |
33 | 80 #endif /* DBMULTI stuff */ |
81 | |
82 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) { | |
83 | |
84 char fmtbuf[300]; | |
85 | |
86 if (!sessinitdone) { | |
87 snprintf(fmtbuf, sizeof(fmtbuf), "exited: %s", | |
88 format); | |
89 } else { | |
90 snprintf(fmtbuf, sizeof(fmtbuf), | |
91 "connection to %s@%s:%s exited: %s", | |
92 cli_opts.username, cli_opts.remotehost, | |
93 cli_opts.remoteport, format); | |
94 } | |
95 | |
40
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- Added terminal mode handling etc for the client, and window change
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96 /* Do the cleanup first, since then the terminal will be reset */ |
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97 cli_session_cleanup(); |
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98 common_session_cleanup(); |
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99 |
33 | 100 _dropbear_log(LOG_INFO, fmtbuf, param); |
101 | |
102 exit(exitcode); | |
103 } | |
104 | |
108
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105 static void cli_dropbear_log(int UNUSED(priority), |
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106 const char* format, va_list param) { |
33 | 107 |
108 char printbuf[1024]; | |
109 | |
110 vsnprintf(printbuf, sizeof(printbuf), format, param); | |
111 | |
40
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112 fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf); |
33 | 113 |
114 } |