git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdparser.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Command parser
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include "ui.h"
  14 #include "cmdparser.h"
  15
  16 void CmdsHelp(const command_t Commands[])
  17 {
  18   if (Commands[0].Name == NULL)
  19     return;
  20   int i = 0;
  21   while (Commands[i].Name)
  22   {
  23     if (!offline || Commands[i].Offline)
  24       PrintAndLog("%-16s %s", Commands[i].Name, Commands[i].Help);
  25     ++i;
  26   }
  27 }
  28
  29 void CmdsParse(const command_t Commands[], const char *Cmd)
  30 {
  31   char cmd_name[32];
  32   int len = 0;
  33   memset(cmd_name, 0, 32);
  34   sscanf(Cmd, "%31s%n", cmd_name, &len);
  35   int i = 0;
  36   while (Commands[i].Name && strcmp(Commands[i].Name, cmd_name))
  37     ++i;
  38
  39   /* try to find exactly one prefix-match */
  40   if(!Commands[i].Name) {
  41     int last_match = 0;
  42     int matches = 0;
  43
  44     for(i=0;Commands[i].Name;i++) {
  45       if( !strncmp(Commands[i].Name, cmd_name, strlen(cmd_name)) ) {
  46         last_match = i;
  47         matches++;
  48       }
  49     }
  50     if(matches == 1) i=last_match;
  51   }
  52
  53   if (Commands[i].Name) {
  54     while (Cmd[len] == ' ')
  55       ++len;
  56     Commands[i].Parse(Cmd + len);
  57   } else {
  58     // show help (always first in array) for selected hierarchy or if command not recognised
  59     CmdsHelp(Commands);
  60   }
  61 }