adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2003, Adam Dunkels. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote |
| 14 | * products derived from this software without specific prior |
| 15 | * written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| 18 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| 23 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 26 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | * |
| 29 | * This file is part of the Contiki desktop OS. |
| 30 | * |
adamdunkels | a3c3103 | 2004-09-12 07:25:26 +0000 | [diff] [blame] | 31 | * $Id: telnetd.c,v 1.10 2004/09/12 07:25:26 adamdunkels Exp $ |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 32 | * |
| 33 | */ |
| 34 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 35 | #include "loader.h" |
| 36 | #include "uip.h" |
adamdunkels | e200430 | 2003-08-21 22:31:38 +0000 | [diff] [blame] | 37 | #include "petsciiconv.h" |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 38 | #include "uip_arp.h" |
| 39 | #include "resolv.h" |
| 40 | |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 41 | #include "memb.h" |
| 42 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 43 | #include "shell.h" |
| 44 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 45 | #include "telnetd.h" |
| 46 | |
| 47 | #include "telnetd-conf.h" |
| 48 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 49 | #include <string.h> |
| 50 | |
| 51 | #define ISO_nl 0x0a |
| 52 | #define ISO_cr 0x0d |
| 53 | |
| 54 | #define XSIZE 36 |
| 55 | #define YSIZE 12 |
| 56 | |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 57 | /*static DISPATCHER_SIGHANDLER(sighandler, s, data); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 58 | |
| 59 | static struct dispatcher_proc p = |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 60 | {DISPATCHER_PROC("Shell server", shell_idle, sighandler, |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 61 | telnetd_appcall)}; |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 62 | static ek_id_t id = EK_ID_NONE;*/ |
| 63 | EK_EVENTHANDLER(eventhandler, ev, data); |
| 64 | EK_PROCESS(p, "Shell server", EK_PRIO_NORMAL, |
| 65 | eventhandler, NULL, NULL); |
| 66 | static ek_id_t id = EK_ID_NONE; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 67 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 68 | MEMB(linemem, TELNETD_CONF_LINELEN, TELNETD_CONF_NUMLINES); |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 69 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 70 | |
| 71 | struct telnetd_state { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 72 | char *lines[TELNETD_CONF_NUMLINES]; |
| 73 | char buf[TELNETD_CONF_LINELEN]; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 74 | char bufptr; |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 75 | u8_t numsent; |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 76 | u8_t state; |
| 77 | #define STATE_NORMAL 0 |
| 78 | #define STATE_IAC 1 |
| 79 | #define STATE_WILL 2 |
| 80 | #define STATE_WONT 3 |
| 81 | #define STATE_DO 4 |
| 82 | #define STATE_DONT 5 |
| 83 | |
| 84 | #define STATE_CLOSE 6 |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 85 | }; |
| 86 | static struct telnetd_state s; |
| 87 | |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 88 | #define TELNET_IAC 255 |
| 89 | #define TELNET_WILL 251 |
| 90 | #define TELNET_WONT 252 |
| 91 | #define TELNET_DO 253 |
| 92 | #define TELNET_DONT 254 |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 93 | /*-----------------------------------------------------------------------------------*/ |
| 94 | static char * |
| 95 | alloc_line(void) |
| 96 | { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 97 | return memb_alloc(&linemem); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 98 | } |
| 99 | /*-----------------------------------------------------------------------------------*/ |
| 100 | static void |
| 101 | dealloc_line(char *line) |
| 102 | { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 103 | memb_free(&linemem, line); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 104 | } |
| 105 | /*-----------------------------------------------------------------------------------*/ |
| 106 | void |
| 107 | shell_quit(char *str) |
| 108 | { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 109 | s.state = STATE_CLOSE; |
| 110 | } |
| 111 | /*-----------------------------------------------------------------------------------*/ |
| 112 | void |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 113 | telnetd_quit(void) |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 114 | { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 115 | #if TELNETD_CONF_GUI |
| 116 | telnetd_gui_quit(); |
| 117 | #endif /* TELNETD_CONF_GUI */ |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 118 | ek_exit(); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 119 | id = EK_ID_NONE; |
| 120 | LOADER_UNLOAD(); |
| 121 | } |
| 122 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 123 | static void |
| 124 | sendline(char *line) |
| 125 | { |
| 126 | static unsigned int i; |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 127 | |
| 128 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 129 | if(s.lines[i] == NULL) { |
| 130 | s.lines[i] = line; |
| 131 | break; |
| 132 | } |
| 133 | } |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 134 | if(i == TELNETD_CONF_NUMLINES) { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 135 | dealloc_line(line); |
| 136 | } |
| 137 | } |
| 138 | /*-----------------------------------------------------------------------------------*/ |
| 139 | void |
| 140 | shell_prompt(char *str) |
| 141 | { |
| 142 | char *line; |
| 143 | line = alloc_line(); |
| 144 | if(line != NULL) { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 145 | strncpy(line, str, TELNETD_CONF_LINELEN); |
| 146 | petsciiconv_toascii(line, TELNETD_CONF_LINELEN); |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 147 | sendline(line); |
| 148 | } |
| 149 | } |
| 150 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 151 | void |
| 152 | shell_output(char *str1, char *str2) |
| 153 | { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 154 | static unsigned len; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 155 | char *line; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 156 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 157 | line = alloc_line(); |
| 158 | if(line != NULL) { |
| 159 | len = strlen(str1); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 160 | strncpy(line, str1, TELNETD_CONF_LINELEN); |
| 161 | if(len < TELNETD_CONF_LINELEN) { |
| 162 | strncpy(line + len, str2, TELNETD_CONF_LINELEN - len); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 163 | } |
| 164 | len = strlen(line); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 165 | if(len < TELNETD_CONF_LINELEN - 2) { |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 166 | line[len] = ISO_cr; |
| 167 | line[len+1] = ISO_nl; |
| 168 | line[len+2] = 0; |
| 169 | } |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 170 | petsciiconv_toascii(line, TELNETD_CONF_LINELEN); |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 171 | sendline(line); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 8bb5cca | 2003-08-24 22:41:31 +0000 | [diff] [blame] | 175 | LOADER_INIT_FUNC(telnetd_init, arg) |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 176 | { |
adamdunkels | 8bb5cca | 2003-08-24 22:41:31 +0000 | [diff] [blame] | 177 | arg_free(arg); |
| 178 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 179 | if(id == EK_ID_NONE) { |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 180 | id = ek_start(&p); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 181 | } |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 182 | } |
| 183 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 184 | EK_EVENTHANDLER(eventhandler, ev, data) |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 185 | { |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 186 | EK_EVENTHANDLER_ARGS(ev, data); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 187 | |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 188 | if(ev == EK_EVENT_INIT) { |
| 189 | tcp_listen(HTONS(23)); |
| 190 | memb_init(&linemem); |
| 191 | shell_init(); |
| 192 | } else if(ev == tcpip_event) { |
| 193 | telnetd_appcall(data); |
| 194 | } else if(ev == EK_EVENT_REQUEST_EXIT) { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 195 | telnetd_quit(); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 196 | } else { |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 197 | #if TELNETD_CONF_GUI |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 198 | telnetd_gui_eventhandler(ev, data); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 199 | #endif /* TELNETD_CONF_GUI */ |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 200 | } |
| 201 | } |
| 202 | /*-----------------------------------------------------------------------------------*/ |
| 203 | static void |
| 204 | acked(void) |
| 205 | { |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 206 | static unsigned int i; |
| 207 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 208 | while(s.numsent > 0) { |
| 209 | dealloc_line(s.lines[0]); |
| 210 | for(i = 1; i < TELNETD_CONF_NUMLINES; ++i) { |
| 211 | s.lines[i - 1] = s.lines[i]; |
| 212 | } |
| 213 | s.lines[TELNETD_CONF_NUMLINES - 1] = NULL; |
| 214 | --s.numsent; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 215 | } |
| 216 | } |
| 217 | /*-----------------------------------------------------------------------------------*/ |
| 218 | static void |
| 219 | senddata(void) |
| 220 | { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 221 | static char *bufptr, *lineptr; |
| 222 | static int buflen, linelen; |
| 223 | |
| 224 | bufptr = uip_appdata; |
| 225 | buflen = 0; |
| 226 | for(s.numsent = 0; s.numsent < TELNETD_CONF_NUMLINES && |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 227 | s.lines[s.numsent] != NULL ; ++s.numsent) { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 228 | lineptr = s.lines[s.numsent]; |
| 229 | linelen = strlen(lineptr); |
| 230 | if(linelen > TELNETD_CONF_LINELEN) { |
| 231 | linelen = TELNETD_CONF_LINELEN; |
| 232 | } |
| 233 | if(buflen + linelen < uip_mss()) { |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 234 | memcpy(bufptr, lineptr, linelen); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 235 | bufptr += linelen; |
| 236 | buflen += linelen; |
| 237 | } else { |
| 238 | break; |
| 239 | } |
| 240 | } |
| 241 | uip_send(uip_appdata, buflen); |
| 242 | } |
| 243 | /*-----------------------------------------------------------------------------------*/ |
| 244 | static void |
| 245 | closed(void) |
| 246 | { |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 247 | static unsigned int i; |
| 248 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 249 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
| 250 | if(s.lines[i] != NULL) { |
| 251 | dealloc_line(s.lines[i]); |
| 252 | } |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 253 | } |
| 254 | } |
| 255 | /*-----------------------------------------------------------------------------------*/ |
| 256 | static void |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 257 | getchar(u8_t c) |
| 258 | { |
| 259 | if(c == ISO_cr) { |
| 260 | return; |
| 261 | } |
| 262 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 263 | s.buf[(int)s.bufptr] = c; |
| 264 | if(s.buf[(int)s.bufptr] == ISO_nl || |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 265 | s.bufptr == sizeof(s.buf) - 1) { |
| 266 | if(s.bufptr > 0) { |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 267 | s.buf[(int)s.bufptr] = 0; |
| 268 | petsciiconv_topetscii(s.buf, TELNETD_CONF_LINELEN); |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 269 | } |
| 270 | shell_input(s.buf); |
| 271 | s.bufptr = 0; |
| 272 | } else { |
| 273 | ++s.bufptr; |
| 274 | } |
| 275 | } |
| 276 | /*-----------------------------------------------------------------------------------*/ |
| 277 | static void |
| 278 | sendopt(u8_t option, u8_t value) |
| 279 | { |
| 280 | char *line; |
| 281 | line = alloc_line(); |
| 282 | if(line != NULL) { |
| 283 | line[0] = TELNET_IAC; |
| 284 | line[1] = option; |
| 285 | line[2] = value; |
| 286 | line[3] = 0; |
| 287 | sendline(line); |
| 288 | } |
| 289 | } |
| 290 | /*-----------------------------------------------------------------------------------*/ |
| 291 | static void |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 292 | newdata(void) |
| 293 | { |
| 294 | u16_t len; |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 295 | u8_t c; |
| 296 | |
| 297 | |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 298 | len = uip_datalen(); |
| 299 | |
| 300 | while(len > 0 && s.bufptr < sizeof(s.buf)) { |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 301 | c = *uip_appdata; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 302 | ++uip_appdata; |
| 303 | --len; |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 304 | switch(s.state) { |
| 305 | case STATE_IAC: |
| 306 | if(c == TELNET_IAC) { |
| 307 | getchar(c); |
| 308 | s.state = STATE_NORMAL; |
| 309 | } else { |
| 310 | switch(c) { |
| 311 | case TELNET_WILL: |
| 312 | s.state = STATE_WILL; |
| 313 | break; |
| 314 | case TELNET_WONT: |
| 315 | s.state = STATE_WONT; |
| 316 | break; |
| 317 | case TELNET_DO: |
| 318 | s.state = STATE_DO; |
| 319 | break; |
| 320 | case TELNET_DONT: |
| 321 | s.state = STATE_DONT; |
| 322 | break; |
| 323 | default: |
| 324 | s.state = STATE_NORMAL; |
| 325 | break; |
| 326 | } |
| 327 | } |
| 328 | break; |
| 329 | case STATE_WILL: |
| 330 | /* Reply with a DONT */ |
| 331 | sendopt(TELNET_DONT, c); |
| 332 | s.state = STATE_NORMAL; |
| 333 | break; |
| 334 | |
| 335 | case STATE_WONT: |
| 336 | /* Reply with a DONT */ |
| 337 | sendopt(TELNET_DONT, c); |
| 338 | s.state = STATE_NORMAL; |
| 339 | break; |
| 340 | case STATE_DO: |
| 341 | /* Reply with a WONT */ |
| 342 | sendopt(TELNET_WONT, c); |
| 343 | s.state = STATE_NORMAL; |
| 344 | break; |
| 345 | case STATE_DONT: |
| 346 | /* Reply with a WONT */ |
| 347 | sendopt(TELNET_WONT, c); |
| 348 | s.state = STATE_NORMAL; |
| 349 | break; |
| 350 | case STATE_NORMAL: |
| 351 | if(c == TELNET_IAC) { |
| 352 | s.state = STATE_IAC; |
| 353 | } else { |
| 354 | getchar(c); |
| 355 | } |
| 356 | break; |
| 357 | } |
| 358 | |
| 359 | |
| 360 | } |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 361 | |
| 362 | } |
| 363 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 364 | void |
| 365 | telnetd_appcall(void *ts) |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 366 | { |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 367 | static unsigned int i; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 368 | if(uip_connected()) { |
adamdunkels | f2f8cb2 | 2004-07-04 11:35:07 +0000 | [diff] [blame] | 369 | tcp_markconn(uip_conn, &s); |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 370 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 371 | s.lines[i] = NULL; |
| 372 | } |
| 373 | s.bufptr = 0; |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 374 | s.state = STATE_NORMAL; |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 375 | |
adamdunkels | cf42854 | 2003-11-27 15:53:00 +0000 | [diff] [blame] | 376 | shell_start(); |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 377 | } |
adamdunkels | cd3d498 | 2003-10-08 10:29:04 +0000 | [diff] [blame] | 378 | |
| 379 | if(s.state == STATE_CLOSE) { |
| 380 | s.state = STATE_NORMAL; |
| 381 | uip_close(); |
| 382 | return; |
| 383 | } |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 384 | |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 385 | if(uip_closed() || |
| 386 | uip_aborted() || |
| 387 | uip_timedout()) { |
| 388 | closed(); |
| 389 | } |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 390 | |
| 391 | if(uip_acked()) { |
| 392 | acked(); |
| 393 | } |
| 394 | |
| 395 | if(uip_newdata()) { |
| 396 | newdata(); |
| 397 | } |
| 398 | |
| 399 | if(uip_rexmit() || |
| 400 | uip_newdata() || |
adamdunkels | 8e5d990 | 2003-10-14 11:23:04 +0000 | [diff] [blame] | 401 | uip_acked() || |
| 402 | uip_connected() || |
| 403 | uip_poll()) { |
adamdunkels | 627009a | 2003-08-21 22:24:19 +0000 | [diff] [blame] | 404 | senddata(); |
| 405 | } |
| 406 | } |
| 407 | /*-----------------------------------------------------------------------------------*/ |