uIP 1.0: apps/telnetd/shell.c Source File

00001  /*
+00002  * Copyright (c) 2003, Adam Dunkels.
+00003  * All rights reserved.
+00004  *
+00005  * Redistribution and use in source and binary forms, with or without
+00006  * modification, are permitted provided that the following conditions
+00007  * are met:
+00008  * 1. Redistributions of source code must retain the above copyright
+00009  *    notice, this list of conditions and the following disclaimer.
+00010  * 2. Redistributions in binary form must reproduce the above copyright
+00011  *    notice, this list of conditions and the following disclaimer in the
+00012  *    documentation and/or other materials provided with the distribution.
+00013  * 3. The name of the author may not be used to endorse or promote
+00014  *    products derived from this software without specific prior
+00015  *    written permission.
+00016  *
+00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+00018  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+00019  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+00021  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+00023  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+00025  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+00026  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+00027  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+00028  *
+00029  * This file is part of the uIP TCP/IP stack.
+00030  *
+00031  * $Id: shell.c,v 1.1 2006/06/07 09:43:54 adam Exp $
+00032  *
+00033  */
+00034 
+00035 #include "shell.h"
+00036 
+00037 #include <string.h>
+00038 
+00039 struct ptentry {
+00040   char *commandstr;
+00041   void (* pfunc)(char *str);
+00042 };
+00043 
+00044 #define SHELL_PROMPT "uIP 1.0> "
+00045 
+00046 /*---------------------------------------------------------------------------*/
+00047 static void
+00048 parse(register char *str, struct ptentry *t)
+00049 {
+00050   struct ptentry *p;
+00051   for(p = t; p->commandstr != NULL; ++p) {
+00052     if(strncmp(p->commandstr, str, strlen(p->commandstr)) == 0) {
+00053       break;
+00054     }
+00055   }
+00056 
+00057   p->pfunc(str);
+00058 }
+00059 /*---------------------------------------------------------------------------*/
+00060 static void
+00061 inttostr(register char *str, unsigned int i)
+00062 {
+00063   str[0] = '0' + i / 100;
+00064   if(str[0] == '0') {
+00065     str[0] = ' ';
+00066   }
+00067   str[1] = '0' + (i / 10) % 10;
+00068   if(str[0] == ' ' && str[1] == '0') {
+00069     str[1] = ' ';
+00070   }
+00071   str[2] = '0' + i % 10;
+00072   str[3] = ' ';
+00073   str[4] = 0;
+00074 }
+00075 /*---------------------------------------------------------------------------*/
+00076 static void
+00077 help(char *str)
+00078 {
+00079   shell_output("Available commands:", "");
+00080   shell_output("stats   - show network statistics", "");
+00081   shell_output("conn    - show TCP connections", "");
+00082   shell_output("help, ? - show help", "");
+00083   shell_output("exit    - exit shell", "");
+00084 }
+00085 /*---------------------------------------------------------------------------*/
+00086 static void
+00087 unknown(char *str)
+00088 {
+00089   if(strlen(str) > 0) {
+00090     shell_output("Unknown command: ", str);
+00091   }
+00092 }
+00093 /*---------------------------------------------------------------------------*/
+00094 static struct ptentry parsetab[] =
+00095   {{"stats", help},
+00096    {"conn", help},
+00097    {"help", help},
+00098    {"exit", shell_quit},
+00099    {"?", help},
+00100 
+00101    /* Default action */
+00102    {NULL, unknown}};
+00103 /*---------------------------------------------------------------------------*/
+00104 void
+00105 shell_init(void)
+00106 {
+00107 }
+00108 /*---------------------------------------------------------------------------*/
+00109 void
+00110 shell_start(void)
+00111 {
+00112   shell_output("uIP command shell", "");
+00113   shell_output("Type '?' and return for help", "");
+00114   shell_prompt(SHELL_PROMPT);
+00115 }
+00116 /*---------------------------------------------------------------------------*/
+00117 void
+00118 shell_input(char *cmd)
+00119 {
+00120   parse(cmd, parsetab);
+00121   shell_prompt(SHELL_PROMPT);
+00122 }
+00123 /*---------------------------------------------------------------------------*/
+