annotate cli-chansession.c @ 74:e3adf4cf5465

License boilerplate etc, add Mihnea as an author to some of the files
author Matt Johnston <matt@ucc.asn.au>
date Sat, 14 Aug 2004 17:54:20 +0000
parents 3a4f0ef1e8c3
children 5dda5a4d475c
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1 /*
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2 * Dropbear SSH
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * Copyright (c) 2004 by Mihnea Stoenescu
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6 * All rights reserved.
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7 *
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8 * Permission is hereby granted, free of charge, to any person obtaining a copy
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9 * of this software and associated documentation files (the "Software"), to deal
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10 * in the Software without restriction, including without limitation the rights
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11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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12 * copies of the Software, and to permit persons to whom the Software is
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13 * furnished to do so, subject to the following conditions:
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14 *
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15 * The above copyright notice and this permission notice shall be included in
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16 * all copies or substantial portions of the Software.
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17 *
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18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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24 * SOFTWARE. */
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25
39
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26 #include "includes.h"
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27 #include "packet.h"
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28 #include "buffer.h"
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29 #include "session.h"
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30 #include "dbutil.h"
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31 #include "channel.h"
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32 #include "ssh.h"
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33 #include "runopts.h"
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34 #include "termcodes.h"
39
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35
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36 static void cli_closechansess(struct Channel *channel);
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37 static int cli_initchansess(struct Channel *channel);
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38
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39 static void start_channel_request(struct Channel *channel, unsigned char *type);
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40
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41 static void send_chansess_pty_req(struct Channel *channel);
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42 static void send_chansess_shell_req(struct Channel *channel);
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43
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44 static void cli_tty_setup();
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45 void cli_tty_cleanup();
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46
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47 static const struct ChanType clichansess = {
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48 0, /* sepfds */
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49 "session", /* name */
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50 cli_initchansess, /* inithandler */
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51 NULL, /* checkclosehandler */
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52 NULL, /* reqhandler */
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53 cli_closechansess, /* closehandler */
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54 };
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55
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56 /* If the main session goes, we close it up */
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57 static void cli_closechansess(struct Channel *channel) {
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58
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59 /* This channel hasn't gone yet, so we have > 1 */
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60 if (ses.chancount > 1) {
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61 dropbear_log(LOG_INFO, "Waiting for other channels to close...");
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62 }
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63
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64 cli_tty_cleanup(); /* Restore tty modes etc */
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65
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66 }
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67
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68 static void start_channel_request(struct Channel *channel,
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69 unsigned char *type) {
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70
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71 CHECKCLEARTOWRITE();
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72 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
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73 buf_putint(ses.writepayload, channel->remotechan);
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74
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75 buf_putstring(ses.writepayload, type, strlen(type));
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76
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77 }
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78
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79 /* Taken from OpenSSH's sshtty.c:
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80 * RCSID("OpenBSD: sshtty.c,v 1.5 2003/09/19 17:43:35 markus Exp "); */
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81 static void cli_tty_setup() {
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82
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83 struct termios tio;
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84
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85 TRACE(("enter cli_pty_setup"));
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86
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87 if (cli_ses.tty_raw_mode == 1) {
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88 TRACE(("leave cli_tty_setup: already in raw mode!"));
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89 return;
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90 }
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91
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92 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
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93 dropbear_exit("Failed to set raw TTY mode");
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94 }
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95
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96 /* make a copy */
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97 cli_ses.saved_tio = tio;
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98
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99 tio.c_iflag |= IGNPAR;
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100 tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF);
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101 #ifdef IUCLC
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102 tio.c_iflag &= ~IUCLC;
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103 #endif
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104 tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL);
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105 #ifdef IEXTEN
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106 tio.c_lflag &= ~IEXTEN;
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107 #endif
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108 tio.c_oflag &= ~OPOST;
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109 tio.c_cc[VMIN] = 1;
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110 tio.c_cc[VTIME] = 0;
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111 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &tio) == -1) {
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112 dropbear_exit("Failed to set raw TTY mode");
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113 }
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114
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115 cli_ses.tty_raw_mode = 1;
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116 TRACE(("leave cli_tty_setup"));
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117 }
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118
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119 void cli_tty_cleanup() {
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120
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121 TRACE(("enter cli_tty_cleanup"));
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122
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123 if (cli_ses.tty_raw_mode == 0) {
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124 TRACE(("leave cli_tty_cleanup: not in raw mode"));
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125 return;
39
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126 }
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127
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128 if (tcsetattr(STDIN_FILENO, TCSADRAIN, &cli_ses.saved_tio) == -1) {
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129 dropbear_log(LOG_WARNING, "Failed restoring TTY");
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130 } else {
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131 cli_ses.tty_raw_mode = 0;
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132 }
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133
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134 TRACE(("leave cli_tty_cleanup"));
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135 }
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136
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137 static void put_termcodes() {
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138
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139 TRACE(("enter put_termcodes"));
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140
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141 struct termios tio;
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142 unsigned int sshcode;
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143 const struct TermCode *termcode;
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144 unsigned int value;
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145 unsigned int mapcode;
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146
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147 unsigned int bufpos1, bufpos2;
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148
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149 if (tcgetattr(STDIN_FILENO, &tio) == -1) {
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150 dropbear_log(LOG_WARNING, "Failed reading termmodes");
b4874d772210 - Added terminal mode handling etc for the client, and window change
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parents: 39
diff changeset
151 buf_putint(ses.writepayload, 1); /* Just the terminator */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
152 buf_putbyte(ses.writepayload, 0); /* TTY_OP_END */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
153 return;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
154 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
155
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
156 bufpos1 = ses.writepayload->pos;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
157 buf_putint(ses.writepayload, 0); /* A placeholder for the final length */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
158
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
159 /* As with Dropbear server, we ignore baud rates for now */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
160 for (sshcode = 1; sshcode < MAX_TERMCODE; sshcode++) {
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diff changeset
161
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
162 termcode = &termcodes[sshcode];
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
163 mapcode = termcode->mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
164
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
165 switch (termcode->type) {
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diff changeset
166
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
167 case TERMCODE_NONE:
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
168 continue;
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parents: 39
diff changeset
169
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
170 case TERMCODE_CONTROLCHAR:
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
171 value = tio.c_cc[mapcode];
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
172 break;
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diff changeset
173
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parents: 39
diff changeset
174 case TERMCODE_INPUT:
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
175 value = tio.c_iflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
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parents: 39
diff changeset
176 break;
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diff changeset
177
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diff changeset
178 case TERMCODE_OUTPUT:
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diff changeset
179 value = tio.c_oflag & mapcode;
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diff changeset
180 break;
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diff changeset
181
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
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diff changeset
182 case TERMCODE_LOCAL:
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parents: 39
diff changeset
183 value = tio.c_lflag & mapcode;
b4874d772210 - Added terminal mode handling etc for the client, and window change
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parents: 39
diff changeset
184 break;
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parents: 39
diff changeset
185
b4874d772210 - Added terminal mode handling etc for the client, and window change
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diff changeset
186 case TERMCODE_CONTROL:
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
187 value = tio.c_cflag & mapcode;
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parents: 39
diff changeset
188 break;
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parents: 39
diff changeset
189
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
190 default:
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
191 continue;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
192
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
193 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
194
b4874d772210 - Added terminal mode handling etc for the client, and window change
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parents: 39
diff changeset
195 /* If we reach here, we have something to say */
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parents: 39
diff changeset
196 buf_putbyte(ses.writepayload, sshcode);
b4874d772210 - Added terminal mode handling etc for the client, and window change
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diff changeset
197 buf_putint(ses.writepayload, value);
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parents: 39
diff changeset
198 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
199
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
200 buf_putbyte(ses.writepayload, 0); /* THE END, aka TTY_OP_END */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
201
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
202 /* Put the string length at the start of the buffer */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
203 bufpos2 = ses.writepayload->pos;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
204
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
205 buf_setpos(ses.writepayload, bufpos1); /* Jump back */
61
3a4f0ef1e8c3 Write the correct termcodes length
Matt Johnston <matt@ucc.asn.au>
parents: 41
diff changeset
206 buf_putint(ses.writepayload, bufpos2 - bufpos1 - 4); /* len(termcodes) */
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
207 buf_setpos(ses.writepayload, bufpos2); /* Back where we were */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
208
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
209 TRACE(("leave put_termcodes"));
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
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diff changeset
210 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
211
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
212 static void put_winsize() {
b4874d772210 - Added terminal mode handling etc for the client, and window change
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diff changeset
213
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diff changeset
214 struct winsize ws;
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diff changeset
215
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parents: 39
diff changeset
216 if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0) {
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
217 /* Some sane defaults */
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Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
218 ws.ws_row = 25;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
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diff changeset
219 ws.ws_col = 80;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
220 ws.ws_xpixel = 0;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
221 ws.ws_ypixel = 0;
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
222 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
223
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
224 buf_putint(ses.writepayload, ws.ws_col); /* Cols */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
225 buf_putint(ses.writepayload, ws.ws_row); /* Rows */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
226 buf_putint(ses.writepayload, ws.ws_xpixel); /* Width */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
227 buf_putint(ses.writepayload, ws.ws_ypixel); /* Height */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
228
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
229 }
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
230
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
231 static void sigwinch_handler(int dummy) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
232
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
233 cli_ses.winchange = 1;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
234
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
235 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
236
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
237 void cli_chansess_winchange() {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
238
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
239 unsigned int i;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
240 struct Channel *channel = NULL;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
241
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
242 for (i = 0; i < ses.chansize; i++) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
243 channel = ses.channels[i];
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
244 if (channel != NULL && channel->type == &clichansess) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
245 CHECKCLEARTOWRITE();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
246 buf_putbyte(ses.writepayload, SSH_MSG_CHANNEL_REQUEST);
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
247 buf_putint(ses.writepayload, channel->remotechan);
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
248 buf_putstring(ses.writepayload, "window-change", 13);
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
249 buf_putbyte(ses.writepayload, 0); /* FALSE says the spec */
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
250 put_winsize();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
251 encrypt_packet();
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
252 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
253 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
254 cli_ses.winchange = 0;
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
255 }
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
256
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
257 static void send_chansess_pty_req(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
258
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
259 unsigned char* term = NULL;
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
260
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
261 TRACE(("enter send_chansess_pty_req"));
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
262
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
263 start_channel_request(channel, "pty-req");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
264
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
265 /* Don't want replies */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
266 buf_putbyte(ses.writepayload, 0);
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
267
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
268 /* Get the terminal */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
269 term = getenv("TERM");
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
270 if (term == NULL) {
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
271 term = "vt100"; /* Seems a safe default */
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
272 }
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
273 buf_putstring(ses.writepayload, term, strlen(term));
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
274
40
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
275 /* Window size */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
276 put_winsize();
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
277
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
278 /* Terminal mode encoding */
b4874d772210 - Added terminal mode handling etc for the client, and window change
Matt Johnston <matt@ucc.asn.au>
parents: 39
diff changeset
279 put_termcodes();
39
0883c0906870 tty raw mode support works mostly
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parents:
diff changeset
280
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
281 encrypt_packet();
41
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
282
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
283 /* Set up a window-change handler */
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
284 if (signal(SIGWINCH, sigwinch_handler) == SIG_ERR) {
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
285 dropbear_exit("signal error");
18eccbfb9641 added window-size change handling
Matt Johnston <matt@ucc.asn.au>
parents: 40
diff changeset
286 }
39
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
287 TRACE(("leave send_chansess_pty_req"));
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
288 }
0883c0906870 tty raw mode support works mostly
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parents:
diff changeset
289
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
290 static void send_chansess_shell_req(struct Channel *channel) {
0883c0906870 tty raw mode support works mostly
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parents:
diff changeset
291
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
292 unsigned char* reqtype = NULL;
0883c0906870 tty raw mode support works mostly
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parents:
diff changeset
293
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
294 TRACE(("enter send_chansess_shell_req"));
0883c0906870 tty raw mode support works mostly
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parents:
diff changeset
295
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
296 if (cli_opts.cmd) {
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Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
297 reqtype = "exec";
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
298 } else {
0883c0906870 tty raw mode support works mostly
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
299 reqtype = "shell";
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300 }
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301
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302 start_channel_request(channel, reqtype);
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303
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304 /* XXX TODO */
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305 buf_putbyte(ses.writepayload, 0); /* Don't want replies */
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306 if (cli_opts.cmd) {
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307 buf_putstring(ses.writepayload, cli_opts.cmd, strlen(cli_opts.cmd));
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308 }
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309
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310 encrypt_packet();
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311 TRACE(("leave send_chansess_shell_req"));
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312 }
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313
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314 static int cli_initchansess(struct Channel *channel) {
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315
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316 channel->infd = STDOUT_FILENO;
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317 //channel->outfd = STDIN_FILENO;
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318 //channel->errfd = STDERR_FILENO;
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319
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320 if (cli_opts.wantpty) {
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321 send_chansess_pty_req(channel);
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322 }
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323
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324 send_chansess_shell_req(channel);
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325
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326 if (cli_opts.wantpty) {
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327 cli_tty_setup();
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328 }
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329
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330 return 0; /* Success */
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331
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332 }
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333
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334 void cli_send_chansess_request() {
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335
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336 TRACE(("enter cli_send_chansess_request"));
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337 if (send_msg_channel_open_init(STDIN_FILENO, &clichansess)
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338 == DROPBEAR_FAILURE) {
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339 dropbear_exit("Couldn't open initial channel");
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340 }
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341
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342 /* No special channel request data */
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343 encrypt_packet();
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344 TRACE(("leave cli_send_chansess_request"));
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345
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346 }