These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
EMAC/uIP/apps/telnetd/telnetd.c@0:bf7b9fba3924, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 05:38:56 2011 +0000
- Revision:
- 0:bf7b9fba3924
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
frank26080115 | 0:bf7b9fba3924 | 1 | /* |
frank26080115 | 0:bf7b9fba3924 | 2 | * Copyright (c) 2003, Adam Dunkels. |
frank26080115 | 0:bf7b9fba3924 | 3 | * All rights reserved. |
frank26080115 | 0:bf7b9fba3924 | 4 | * |
frank26080115 | 0:bf7b9fba3924 | 5 | * Redistribution and use in source and binary forms, with or without |
frank26080115 | 0:bf7b9fba3924 | 6 | * modification, are permitted provided that the following conditions |
frank26080115 | 0:bf7b9fba3924 | 7 | * are met: |
frank26080115 | 0:bf7b9fba3924 | 8 | * 1. Redistributions of source code must retain the above copyright |
frank26080115 | 0:bf7b9fba3924 | 9 | * notice, this list of conditions and the following disclaimer. |
frank26080115 | 0:bf7b9fba3924 | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
frank26080115 | 0:bf7b9fba3924 | 11 | * notice, this list of conditions and the following disclaimer in the |
frank26080115 | 0:bf7b9fba3924 | 12 | * documentation and/or other materials provided with the distribution. |
frank26080115 | 0:bf7b9fba3924 | 13 | * 3. The name of the author may not be used to endorse or promote |
frank26080115 | 0:bf7b9fba3924 | 14 | * products derived from this software without specific prior |
frank26080115 | 0:bf7b9fba3924 | 15 | * written permission. |
frank26080115 | 0:bf7b9fba3924 | 16 | * |
frank26080115 | 0:bf7b9fba3924 | 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
frank26080115 | 0:bf7b9fba3924 | 18 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
frank26080115 | 0:bf7b9fba3924 | 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
frank26080115 | 0:bf7b9fba3924 | 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
frank26080115 | 0:bf7b9fba3924 | 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
frank26080115 | 0:bf7b9fba3924 | 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
frank26080115 | 0:bf7b9fba3924 | 23 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
frank26080115 | 0:bf7b9fba3924 | 24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
frank26080115 | 0:bf7b9fba3924 | 25 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
frank26080115 | 0:bf7b9fba3924 | 26 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
frank26080115 | 0:bf7b9fba3924 | 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
frank26080115 | 0:bf7b9fba3924 | 28 | * |
frank26080115 | 0:bf7b9fba3924 | 29 | * This file is part of the uIP TCP/IP stack |
frank26080115 | 0:bf7b9fba3924 | 30 | * |
frank26080115 | 0:bf7b9fba3924 | 31 | * $Id: telnetd.c,v 1.2 2006/06/07 09:43:54 adam Exp $ |
frank26080115 | 0:bf7b9fba3924 | 32 | * |
frank26080115 | 0:bf7b9fba3924 | 33 | */ |
frank26080115 | 0:bf7b9fba3924 | 34 | |
frank26080115 | 0:bf7b9fba3924 | 35 | #include "uip.h" |
frank26080115 | 0:bf7b9fba3924 | 36 | #include "telnetd.h" |
frank26080115 | 0:bf7b9fba3924 | 37 | #include "memb.h" |
frank26080115 | 0:bf7b9fba3924 | 38 | #include "shell.h" |
frank26080115 | 0:bf7b9fba3924 | 39 | |
frank26080115 | 0:bf7b9fba3924 | 40 | #include <string.h> |
frank26080115 | 0:bf7b9fba3924 | 41 | |
frank26080115 | 0:bf7b9fba3924 | 42 | #define ISO_nl 0x0a |
frank26080115 | 0:bf7b9fba3924 | 43 | #define ISO_cr 0x0d |
frank26080115 | 0:bf7b9fba3924 | 44 | |
frank26080115 | 0:bf7b9fba3924 | 45 | struct telnetd_line { |
frank26080115 | 0:bf7b9fba3924 | 46 | char line[TELNETD_CONF_LINELEN]; |
frank26080115 | 0:bf7b9fba3924 | 47 | }; |
frank26080115 | 0:bf7b9fba3924 | 48 | MEMB(linemem, struct telnetd_line, TELNETD_CONF_NUMLINES); |
frank26080115 | 0:bf7b9fba3924 | 49 | |
frank26080115 | 0:bf7b9fba3924 | 50 | #define STATE_NORMAL 0 |
frank26080115 | 0:bf7b9fba3924 | 51 | #define STATE_IAC 1 |
frank26080115 | 0:bf7b9fba3924 | 52 | #define STATE_WILL 2 |
frank26080115 | 0:bf7b9fba3924 | 53 | #define STATE_WONT 3 |
frank26080115 | 0:bf7b9fba3924 | 54 | #define STATE_DO 4 |
frank26080115 | 0:bf7b9fba3924 | 55 | #define STATE_DONT 5 |
frank26080115 | 0:bf7b9fba3924 | 56 | #define STATE_CLOSE 6 |
frank26080115 | 0:bf7b9fba3924 | 57 | |
frank26080115 | 0:bf7b9fba3924 | 58 | static struct telnetd_state s; |
frank26080115 | 0:bf7b9fba3924 | 59 | |
frank26080115 | 0:bf7b9fba3924 | 60 | #define TELNET_IAC 255 |
frank26080115 | 0:bf7b9fba3924 | 61 | #define TELNET_WILL 251 |
frank26080115 | 0:bf7b9fba3924 | 62 | #define TELNET_WONT 252 |
frank26080115 | 0:bf7b9fba3924 | 63 | #define TELNET_DO 253 |
frank26080115 | 0:bf7b9fba3924 | 64 | #define TELNET_DONT 254 |
frank26080115 | 0:bf7b9fba3924 | 65 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 66 | static char * |
frank26080115 | 0:bf7b9fba3924 | 67 | alloc_line(void) |
frank26080115 | 0:bf7b9fba3924 | 68 | { |
frank26080115 | 0:bf7b9fba3924 | 69 | return memb_alloc(&linemem); |
frank26080115 | 0:bf7b9fba3924 | 70 | } |
frank26080115 | 0:bf7b9fba3924 | 71 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 72 | static void |
frank26080115 | 0:bf7b9fba3924 | 73 | dealloc_line(char *line) |
frank26080115 | 0:bf7b9fba3924 | 74 | { |
frank26080115 | 0:bf7b9fba3924 | 75 | memb_free(&linemem, line); |
frank26080115 | 0:bf7b9fba3924 | 76 | } |
frank26080115 | 0:bf7b9fba3924 | 77 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 78 | void |
frank26080115 | 0:bf7b9fba3924 | 79 | shell_quit(char *str) |
frank26080115 | 0:bf7b9fba3924 | 80 | { |
frank26080115 | 0:bf7b9fba3924 | 81 | s.state = STATE_CLOSE; |
frank26080115 | 0:bf7b9fba3924 | 82 | } |
frank26080115 | 0:bf7b9fba3924 | 83 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 84 | static void |
frank26080115 | 0:bf7b9fba3924 | 85 | sendline(char *line) |
frank26080115 | 0:bf7b9fba3924 | 86 | { |
frank26080115 | 0:bf7b9fba3924 | 87 | static unsigned int i; |
frank26080115 | 0:bf7b9fba3924 | 88 | |
frank26080115 | 0:bf7b9fba3924 | 89 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
frank26080115 | 0:bf7b9fba3924 | 90 | if(s.lines[i] == NULL) { |
frank26080115 | 0:bf7b9fba3924 | 91 | s.lines[i] = line; |
frank26080115 | 0:bf7b9fba3924 | 92 | break; |
frank26080115 | 0:bf7b9fba3924 | 93 | } |
frank26080115 | 0:bf7b9fba3924 | 94 | } |
frank26080115 | 0:bf7b9fba3924 | 95 | if(i == TELNETD_CONF_NUMLINES) { |
frank26080115 | 0:bf7b9fba3924 | 96 | dealloc_line(line); |
frank26080115 | 0:bf7b9fba3924 | 97 | } |
frank26080115 | 0:bf7b9fba3924 | 98 | } |
frank26080115 | 0:bf7b9fba3924 | 99 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 100 | void |
frank26080115 | 0:bf7b9fba3924 | 101 | shell_prompt(char *str) |
frank26080115 | 0:bf7b9fba3924 | 102 | { |
frank26080115 | 0:bf7b9fba3924 | 103 | char *line; |
frank26080115 | 0:bf7b9fba3924 | 104 | line = alloc_line(); |
frank26080115 | 0:bf7b9fba3924 | 105 | if(line != NULL) { |
frank26080115 | 0:bf7b9fba3924 | 106 | strncpy(line, str, TELNETD_CONF_LINELEN); |
frank26080115 | 0:bf7b9fba3924 | 107 | /* petsciiconv_toascii(line, TELNETD_CONF_LINELEN);*/ |
frank26080115 | 0:bf7b9fba3924 | 108 | sendline(line); |
frank26080115 | 0:bf7b9fba3924 | 109 | } |
frank26080115 | 0:bf7b9fba3924 | 110 | } |
frank26080115 | 0:bf7b9fba3924 | 111 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 112 | void |
frank26080115 | 0:bf7b9fba3924 | 113 | shell_output(char *str1, char *str2) |
frank26080115 | 0:bf7b9fba3924 | 114 | { |
frank26080115 | 0:bf7b9fba3924 | 115 | static unsigned len; |
frank26080115 | 0:bf7b9fba3924 | 116 | char *line; |
frank26080115 | 0:bf7b9fba3924 | 117 | |
frank26080115 | 0:bf7b9fba3924 | 118 | line = alloc_line(); |
frank26080115 | 0:bf7b9fba3924 | 119 | if(line != NULL) { |
frank26080115 | 0:bf7b9fba3924 | 120 | len = strlen(str1); |
frank26080115 | 0:bf7b9fba3924 | 121 | strncpy(line, str1, TELNETD_CONF_LINELEN); |
frank26080115 | 0:bf7b9fba3924 | 122 | if(len < TELNETD_CONF_LINELEN) { |
frank26080115 | 0:bf7b9fba3924 | 123 | strncpy(line + len, str2, TELNETD_CONF_LINELEN - len); |
frank26080115 | 0:bf7b9fba3924 | 124 | } |
frank26080115 | 0:bf7b9fba3924 | 125 | len = strlen(line); |
frank26080115 | 0:bf7b9fba3924 | 126 | if(len < TELNETD_CONF_LINELEN - 2) { |
frank26080115 | 0:bf7b9fba3924 | 127 | line[len] = ISO_cr; |
frank26080115 | 0:bf7b9fba3924 | 128 | line[len+1] = ISO_nl; |
frank26080115 | 0:bf7b9fba3924 | 129 | line[len+2] = 0; |
frank26080115 | 0:bf7b9fba3924 | 130 | } |
frank26080115 | 0:bf7b9fba3924 | 131 | /* petsciiconv_toascii(line, TELNETD_CONF_LINELEN);*/ |
frank26080115 | 0:bf7b9fba3924 | 132 | sendline(line); |
frank26080115 | 0:bf7b9fba3924 | 133 | } |
frank26080115 | 0:bf7b9fba3924 | 134 | } |
frank26080115 | 0:bf7b9fba3924 | 135 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 136 | void |
frank26080115 | 0:bf7b9fba3924 | 137 | telnetd_init(void) |
frank26080115 | 0:bf7b9fba3924 | 138 | { |
frank26080115 | 0:bf7b9fba3924 | 139 | uip_listen(HTONS(23)); |
frank26080115 | 0:bf7b9fba3924 | 140 | memb_init(&linemem); |
frank26080115 | 0:bf7b9fba3924 | 141 | shell_init(); |
frank26080115 | 0:bf7b9fba3924 | 142 | } |
frank26080115 | 0:bf7b9fba3924 | 143 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 144 | static void |
frank26080115 | 0:bf7b9fba3924 | 145 | acked(void) |
frank26080115 | 0:bf7b9fba3924 | 146 | { |
frank26080115 | 0:bf7b9fba3924 | 147 | static unsigned int i; |
frank26080115 | 0:bf7b9fba3924 | 148 | |
frank26080115 | 0:bf7b9fba3924 | 149 | while(s.numsent > 0) { |
frank26080115 | 0:bf7b9fba3924 | 150 | dealloc_line(s.lines[0]); |
frank26080115 | 0:bf7b9fba3924 | 151 | for(i = 1; i < TELNETD_CONF_NUMLINES; ++i) { |
frank26080115 | 0:bf7b9fba3924 | 152 | s.lines[i - 1] = s.lines[i]; |
frank26080115 | 0:bf7b9fba3924 | 153 | } |
frank26080115 | 0:bf7b9fba3924 | 154 | s.lines[TELNETD_CONF_NUMLINES - 1] = NULL; |
frank26080115 | 0:bf7b9fba3924 | 155 | --s.numsent; |
frank26080115 | 0:bf7b9fba3924 | 156 | } |
frank26080115 | 0:bf7b9fba3924 | 157 | } |
frank26080115 | 0:bf7b9fba3924 | 158 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 159 | static void |
frank26080115 | 0:bf7b9fba3924 | 160 | senddata(void) |
frank26080115 | 0:bf7b9fba3924 | 161 | { |
frank26080115 | 0:bf7b9fba3924 | 162 | static char *bufptr, *lineptr; |
frank26080115 | 0:bf7b9fba3924 | 163 | static int buflen, linelen; |
frank26080115 | 0:bf7b9fba3924 | 164 | |
frank26080115 | 0:bf7b9fba3924 | 165 | bufptr = uip_appdata; |
frank26080115 | 0:bf7b9fba3924 | 166 | buflen = 0; |
frank26080115 | 0:bf7b9fba3924 | 167 | for(s.numsent = 0; s.numsent < TELNETD_CONF_NUMLINES && |
frank26080115 | 0:bf7b9fba3924 | 168 | s.lines[s.numsent] != NULL ; ++s.numsent) { |
frank26080115 | 0:bf7b9fba3924 | 169 | lineptr = s.lines[s.numsent]; |
frank26080115 | 0:bf7b9fba3924 | 170 | linelen = strlen(lineptr); |
frank26080115 | 0:bf7b9fba3924 | 171 | if(linelen > TELNETD_CONF_LINELEN) { |
frank26080115 | 0:bf7b9fba3924 | 172 | linelen = TELNETD_CONF_LINELEN; |
frank26080115 | 0:bf7b9fba3924 | 173 | } |
frank26080115 | 0:bf7b9fba3924 | 174 | if(buflen + linelen < uip_mss()) { |
frank26080115 | 0:bf7b9fba3924 | 175 | memcpy(bufptr, lineptr, linelen); |
frank26080115 | 0:bf7b9fba3924 | 176 | bufptr += linelen; |
frank26080115 | 0:bf7b9fba3924 | 177 | buflen += linelen; |
frank26080115 | 0:bf7b9fba3924 | 178 | } else { |
frank26080115 | 0:bf7b9fba3924 | 179 | break; |
frank26080115 | 0:bf7b9fba3924 | 180 | } |
frank26080115 | 0:bf7b9fba3924 | 181 | } |
frank26080115 | 0:bf7b9fba3924 | 182 | uip_send(uip_appdata, buflen); |
frank26080115 | 0:bf7b9fba3924 | 183 | } |
frank26080115 | 0:bf7b9fba3924 | 184 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 185 | static void |
frank26080115 | 0:bf7b9fba3924 | 186 | closed(void) |
frank26080115 | 0:bf7b9fba3924 | 187 | { |
frank26080115 | 0:bf7b9fba3924 | 188 | static unsigned int i; |
frank26080115 | 0:bf7b9fba3924 | 189 | |
frank26080115 | 0:bf7b9fba3924 | 190 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
frank26080115 | 0:bf7b9fba3924 | 191 | if(s.lines[i] != NULL) { |
frank26080115 | 0:bf7b9fba3924 | 192 | dealloc_line(s.lines[i]); |
frank26080115 | 0:bf7b9fba3924 | 193 | } |
frank26080115 | 0:bf7b9fba3924 | 194 | } |
frank26080115 | 0:bf7b9fba3924 | 195 | } |
frank26080115 | 0:bf7b9fba3924 | 196 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 197 | static void |
frank26080115 | 0:bf7b9fba3924 | 198 | get_char(u8_t c) |
frank26080115 | 0:bf7b9fba3924 | 199 | { |
frank26080115 | 0:bf7b9fba3924 | 200 | if(c == ISO_cr) { |
frank26080115 | 0:bf7b9fba3924 | 201 | return; |
frank26080115 | 0:bf7b9fba3924 | 202 | } |
frank26080115 | 0:bf7b9fba3924 | 203 | |
frank26080115 | 0:bf7b9fba3924 | 204 | s.buf[(int)s.bufptr] = c; |
frank26080115 | 0:bf7b9fba3924 | 205 | if(s.buf[(int)s.bufptr] == ISO_nl || |
frank26080115 | 0:bf7b9fba3924 | 206 | s.bufptr == sizeof(s.buf) - 1) { |
frank26080115 | 0:bf7b9fba3924 | 207 | if(s.bufptr > 0) { |
frank26080115 | 0:bf7b9fba3924 | 208 | s.buf[(int)s.bufptr] = 0; |
frank26080115 | 0:bf7b9fba3924 | 209 | /* petsciiconv_topetscii(s.buf, TELNETD_CONF_LINELEN);*/ |
frank26080115 | 0:bf7b9fba3924 | 210 | } |
frank26080115 | 0:bf7b9fba3924 | 211 | shell_input(s.buf); |
frank26080115 | 0:bf7b9fba3924 | 212 | s.bufptr = 0; |
frank26080115 | 0:bf7b9fba3924 | 213 | } else { |
frank26080115 | 0:bf7b9fba3924 | 214 | ++s.bufptr; |
frank26080115 | 0:bf7b9fba3924 | 215 | } |
frank26080115 | 0:bf7b9fba3924 | 216 | } |
frank26080115 | 0:bf7b9fba3924 | 217 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 218 | static void |
frank26080115 | 0:bf7b9fba3924 | 219 | sendopt(u8_t option, u8_t value) |
frank26080115 | 0:bf7b9fba3924 | 220 | { |
frank26080115 | 0:bf7b9fba3924 | 221 | char *line; |
frank26080115 | 0:bf7b9fba3924 | 222 | line = alloc_line(); |
frank26080115 | 0:bf7b9fba3924 | 223 | if(line != NULL) { |
frank26080115 | 0:bf7b9fba3924 | 224 | line[0] = TELNET_IAC; |
frank26080115 | 0:bf7b9fba3924 | 225 | line[1] = option; |
frank26080115 | 0:bf7b9fba3924 | 226 | line[2] = value; |
frank26080115 | 0:bf7b9fba3924 | 227 | line[3] = 0; |
frank26080115 | 0:bf7b9fba3924 | 228 | sendline(line); |
frank26080115 | 0:bf7b9fba3924 | 229 | } |
frank26080115 | 0:bf7b9fba3924 | 230 | } |
frank26080115 | 0:bf7b9fba3924 | 231 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 232 | static void |
frank26080115 | 0:bf7b9fba3924 | 233 | newdata(void) |
frank26080115 | 0:bf7b9fba3924 | 234 | { |
frank26080115 | 0:bf7b9fba3924 | 235 | u16_t len; |
frank26080115 | 0:bf7b9fba3924 | 236 | u8_t c; |
frank26080115 | 0:bf7b9fba3924 | 237 | char *dataptr; |
frank26080115 | 0:bf7b9fba3924 | 238 | |
frank26080115 | 0:bf7b9fba3924 | 239 | |
frank26080115 | 0:bf7b9fba3924 | 240 | len = uip_datalen(); |
frank26080115 | 0:bf7b9fba3924 | 241 | dataptr = (char *)uip_appdata; |
frank26080115 | 0:bf7b9fba3924 | 242 | |
frank26080115 | 0:bf7b9fba3924 | 243 | while(len > 0 && s.bufptr < sizeof(s.buf)) { |
frank26080115 | 0:bf7b9fba3924 | 244 | c = *dataptr; |
frank26080115 | 0:bf7b9fba3924 | 245 | ++dataptr; |
frank26080115 | 0:bf7b9fba3924 | 246 | --len; |
frank26080115 | 0:bf7b9fba3924 | 247 | switch(s.state) { |
frank26080115 | 0:bf7b9fba3924 | 248 | case STATE_IAC: |
frank26080115 | 0:bf7b9fba3924 | 249 | if(c == TELNET_IAC) { |
frank26080115 | 0:bf7b9fba3924 | 250 | get_char(c); |
frank26080115 | 0:bf7b9fba3924 | 251 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 252 | } else { |
frank26080115 | 0:bf7b9fba3924 | 253 | switch(c) { |
frank26080115 | 0:bf7b9fba3924 | 254 | case TELNET_WILL: |
frank26080115 | 0:bf7b9fba3924 | 255 | s.state = STATE_WILL; |
frank26080115 | 0:bf7b9fba3924 | 256 | break; |
frank26080115 | 0:bf7b9fba3924 | 257 | case TELNET_WONT: |
frank26080115 | 0:bf7b9fba3924 | 258 | s.state = STATE_WONT; |
frank26080115 | 0:bf7b9fba3924 | 259 | break; |
frank26080115 | 0:bf7b9fba3924 | 260 | case TELNET_DO: |
frank26080115 | 0:bf7b9fba3924 | 261 | s.state = STATE_DO; |
frank26080115 | 0:bf7b9fba3924 | 262 | break; |
frank26080115 | 0:bf7b9fba3924 | 263 | case TELNET_DONT: |
frank26080115 | 0:bf7b9fba3924 | 264 | s.state = STATE_DONT; |
frank26080115 | 0:bf7b9fba3924 | 265 | break; |
frank26080115 | 0:bf7b9fba3924 | 266 | default: |
frank26080115 | 0:bf7b9fba3924 | 267 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 268 | break; |
frank26080115 | 0:bf7b9fba3924 | 269 | } |
frank26080115 | 0:bf7b9fba3924 | 270 | } |
frank26080115 | 0:bf7b9fba3924 | 271 | break; |
frank26080115 | 0:bf7b9fba3924 | 272 | case STATE_WILL: |
frank26080115 | 0:bf7b9fba3924 | 273 | /* Reply with a DONT */ |
frank26080115 | 0:bf7b9fba3924 | 274 | sendopt(TELNET_DONT, c); |
frank26080115 | 0:bf7b9fba3924 | 275 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 276 | break; |
frank26080115 | 0:bf7b9fba3924 | 277 | |
frank26080115 | 0:bf7b9fba3924 | 278 | case STATE_WONT: |
frank26080115 | 0:bf7b9fba3924 | 279 | /* Reply with a DONT */ |
frank26080115 | 0:bf7b9fba3924 | 280 | sendopt(TELNET_DONT, c); |
frank26080115 | 0:bf7b9fba3924 | 281 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 282 | break; |
frank26080115 | 0:bf7b9fba3924 | 283 | case STATE_DO: |
frank26080115 | 0:bf7b9fba3924 | 284 | /* Reply with a WONT */ |
frank26080115 | 0:bf7b9fba3924 | 285 | sendopt(TELNET_WONT, c); |
frank26080115 | 0:bf7b9fba3924 | 286 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 287 | break; |
frank26080115 | 0:bf7b9fba3924 | 288 | case STATE_DONT: |
frank26080115 | 0:bf7b9fba3924 | 289 | /* Reply with a WONT */ |
frank26080115 | 0:bf7b9fba3924 | 290 | sendopt(TELNET_WONT, c); |
frank26080115 | 0:bf7b9fba3924 | 291 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 292 | break; |
frank26080115 | 0:bf7b9fba3924 | 293 | case STATE_NORMAL: |
frank26080115 | 0:bf7b9fba3924 | 294 | if(c == TELNET_IAC) { |
frank26080115 | 0:bf7b9fba3924 | 295 | s.state = STATE_IAC; |
frank26080115 | 0:bf7b9fba3924 | 296 | } else { |
frank26080115 | 0:bf7b9fba3924 | 297 | get_char(c); |
frank26080115 | 0:bf7b9fba3924 | 298 | } |
frank26080115 | 0:bf7b9fba3924 | 299 | break; |
frank26080115 | 0:bf7b9fba3924 | 300 | } |
frank26080115 | 0:bf7b9fba3924 | 301 | |
frank26080115 | 0:bf7b9fba3924 | 302 | |
frank26080115 | 0:bf7b9fba3924 | 303 | } |
frank26080115 | 0:bf7b9fba3924 | 304 | |
frank26080115 | 0:bf7b9fba3924 | 305 | } |
frank26080115 | 0:bf7b9fba3924 | 306 | /*---------------------------------------------------------------------------*/ |
frank26080115 | 0:bf7b9fba3924 | 307 | void |
frank26080115 | 0:bf7b9fba3924 | 308 | telnetd_appcall(void) |
frank26080115 | 0:bf7b9fba3924 | 309 | { |
frank26080115 | 0:bf7b9fba3924 | 310 | static unsigned int i; |
frank26080115 | 0:bf7b9fba3924 | 311 | if(uip_connected()) { |
frank26080115 | 0:bf7b9fba3924 | 312 | /* tcp_markconn(uip_conn, &s);*/ |
frank26080115 | 0:bf7b9fba3924 | 313 | for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { |
frank26080115 | 0:bf7b9fba3924 | 314 | s.lines[i] = NULL; |
frank26080115 | 0:bf7b9fba3924 | 315 | } |
frank26080115 | 0:bf7b9fba3924 | 316 | s.bufptr = 0; |
frank26080115 | 0:bf7b9fba3924 | 317 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 318 | |
frank26080115 | 0:bf7b9fba3924 | 319 | shell_start(); |
frank26080115 | 0:bf7b9fba3924 | 320 | } |
frank26080115 | 0:bf7b9fba3924 | 321 | |
frank26080115 | 0:bf7b9fba3924 | 322 | if(s.state == STATE_CLOSE) { |
frank26080115 | 0:bf7b9fba3924 | 323 | s.state = STATE_NORMAL; |
frank26080115 | 0:bf7b9fba3924 | 324 | uip_close(); |
frank26080115 | 0:bf7b9fba3924 | 325 | return; |
frank26080115 | 0:bf7b9fba3924 | 326 | } |
frank26080115 | 0:bf7b9fba3924 | 327 | |
frank26080115 | 0:bf7b9fba3924 | 328 | if(uip_closed() || |
frank26080115 | 0:bf7b9fba3924 | 329 | uip_aborted() || |
frank26080115 | 0:bf7b9fba3924 | 330 | uip_timedout()) { |
frank26080115 | 0:bf7b9fba3924 | 331 | closed(); |
frank26080115 | 0:bf7b9fba3924 | 332 | } |
frank26080115 | 0:bf7b9fba3924 | 333 | |
frank26080115 | 0:bf7b9fba3924 | 334 | if(uip_acked()) { |
frank26080115 | 0:bf7b9fba3924 | 335 | acked(); |
frank26080115 | 0:bf7b9fba3924 | 336 | } |
frank26080115 | 0:bf7b9fba3924 | 337 | |
frank26080115 | 0:bf7b9fba3924 | 338 | if(uip_newdata()) { |
frank26080115 | 0:bf7b9fba3924 | 339 | newdata(); |
frank26080115 | 0:bf7b9fba3924 | 340 | } |
frank26080115 | 0:bf7b9fba3924 | 341 | |
frank26080115 | 0:bf7b9fba3924 | 342 | if(uip_rexmit() || |
frank26080115 | 0:bf7b9fba3924 | 343 | uip_newdata() || |
frank26080115 | 0:bf7b9fba3924 | 344 | uip_acked() || |
frank26080115 | 0:bf7b9fba3924 | 345 | uip_connected() || |
frank26080115 | 0:bf7b9fba3924 | 346 | uip_poll()) { |
frank26080115 | 0:bf7b9fba3924 | 347 | senddata(); |
frank26080115 | 0:bf7b9fba3924 | 348 | } |
frank26080115 | 0:bf7b9fba3924 | 349 | } |
frank26080115 | 0:bf7b9fba3924 | 350 | /*---------------------------------------------------------------------------*/ |