Mercurial > dropbear
annotate cli-main.c @ 427:5df05d0a5366 channel-fix
Revert to default sigchld handler after forking, don't exit
on error writing to the signal_pipe.
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Mon, 12 Feb 2007 13:32:30 +0000 |
| parents | 0cfba3034be5 |
| children | 740e782679be 1afa503e33f5 |
| 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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e3adf4cf5465
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11 * in the Software without restriction, including without limitation the rights |
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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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e3adf4cf5465
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14 * furnished to do so, subject to the following conditions: |
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e3adf4cf5465
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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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e3adf4cf5465
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17 * all copies or substantial portions of the Software. |
|
e3adf4cf5465
License boilerplate etc, add Mihnea as an author to some of the files
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parents:
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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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e3adf4cf5465
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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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e3adf4cf5465
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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 | |
| 50 cli_getopts(argc, argv); | |
| 51 | |
| 33 | 52 TRACE(("user='%s' host='%s' port='%s'", cli_opts.username, |
|
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Fixed DEBUG_TRACE macro so that we don't get semicolons left about the place
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53 cli_opts.remotehost, cli_opts.remoteport)) |
| 33 | 54 |
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109
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55 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) { |
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56 dropbear_exit("signal() error"); |
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57 } |
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58 |
| 26 | 59 sock = connect_remote(cli_opts.remotehost, cli_opts.remoteport, |
| 60 0, &error); | |
| 61 | |
| 62 if (sock < 0) { | |
| 63 dropbear_exit("%s", error); | |
| 64 } | |
| 65 | |
| 66 /* Set up the host:port log */ | |
| 67 len = strlen(cli_opts.remotehost); | |
| 68 len += 10; /* 16 bit port and leeway*/ | |
| 69 hostandport = (char*)m_malloc(len); | |
| 33 | 70 snprintf(hostandport, len, "%s:%s", |
| 26 | 71 cli_opts.remotehost, cli_opts.remoteport); |
| 72 | |
| 73 cli_session(sock, hostandport); | |
| 74 | |
| 75 /* not reached */ | |
| 76 return -1; | |
| 77 } | |
| 33 | 78 #endif /* DBMULTI stuff */ |
| 79 | |
| 80 static void cli_dropbear_exit(int exitcode, const char* format, va_list param) { | |
| 81 | |
| 82 char fmtbuf[300]; | |
| 83 | |
| 84 if (!sessinitdone) { | |
| 85 snprintf(fmtbuf, sizeof(fmtbuf), "exited: %s", | |
| 86 format); | |
| 87 } else { | |
| 88 snprintf(fmtbuf, sizeof(fmtbuf), | |
| 89 "connection to %s@%s:%s exited: %s", | |
| 90 cli_opts.username, cli_opts.remotehost, | |
| 91 cli_opts.remoteport, format); | |
| 92 } | |
| 93 | |
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40
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- Added terminal mode handling etc for the client, and window change
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94 /* Do the cleanup first, since then the terminal will be reset */ |
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95 cli_session_cleanup(); |
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96 common_session_cleanup(); |
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97 |
| 33 | 98 _dropbear_log(LOG_INFO, fmtbuf, param); |
| 99 | |
| 100 exit(exitcode); | |
| 101 } | |
| 102 | |
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103 static void cli_dropbear_log(int UNUSED(priority), |
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104 const char* format, va_list param) { |
| 33 | 105 |
| 106 char printbuf[1024]; | |
| 107 | |
| 108 vsnprintf(printbuf, sizeof(printbuf), format, param); | |
| 109 | |
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40
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110 fprintf(stderr, "%s: %s\n", cli_opts.progname, printbuf); |
| 33 | 111 |
| 112 } |