# apps/telnetd/shell.c

    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 /*---------------------------------------------------------------------------*/