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 <stdlib.h>
  13 #include <string.h>
  14 #include "ui.h"
  15 #include "cmdparser.h"
  16 #include "proxmark3.h"
  17
  18 void CmdsHelp(const command_t Commands[])
  19 {
  20   if (Commands[0].Name == NULL)
  21     return;
  22   int i = 0;
  23   while (Commands[i].Name)
  24   {
  25     if (!offline || Commands[i].Offline)
  26        PrintAndLog("%-16s %s", Commands[i].Name, Commands[i].Help);
  27     ++i;
  28   }
  29 }
  30
  31 void CmdsParse(const command_t Commands[], const char *Cmd)
  32 {
  33   if(strcmp( Cmd, "XX_internal_command_dump_XX") == 0)
  34   {// Help dump children
  35       dumpCommandsRecursive(Commands, 0);
  36       return;
  37   }
  38   if(strcmp( Cmd, "XX_internal_command_dump_markdown_XX") == 0)
  39   {// Markdown help dump children
  40       dumpCommandsRecursive(Commands, 1);
  41       return;
  42   }
  43   char cmd_name[32];
  44   int len = 0;
  45   memset(cmd_name, 0, 32);
  46   sscanf(Cmd, "%31s%n", cmd_name, &len);
  47   int i = 0;
  48   while (Commands[i].Name && strcmp(Commands[i].Name, cmd_name))
  49     ++i;
  50
  51   /* try to find exactly one prefix-match */
  52   if(!Commands[i].Name) {
  53     int last_match = 0;
  54     int matches = 0;
  55
  56     for(i=0;Commands[i].Name;i++) {
  57       if( !strncmp(Commands[i].Name, cmd_name, strlen(cmd_name)) ) {
  58         last_match = i;
  59         matches++;
  60       }
  61     }
  62     if(matches == 1) i=last_match;
  63   }
  64
  65   if (Commands[i].Name) {
  66     while (Cmd[len] == ' ')
  67       ++len;
  68     Commands[i].Parse(Cmd + len);
  69   } else {
  70     // show help for selected hierarchy or if command not recognised
  71     CmdsHelp(Commands);
  72   }
  73 }
  74
  75 char pparent[512] = {0};
  76 char *parent = pparent;
  77
  78 void dumpCommandsRecursive(const command_t cmds[], int markdown)
  79 {
  80   if (cmds[0].Name == NULL)
  81     return;
  82
  83   int i = 0;
  84   int w_cmd=25;
  85   int w_off=8;
  86   // First, dump all single commands, which are not a container for
  87   // other commands
  88   if (markdown) {
  89     printf("|%-*s|%-*s|%s\n",w_cmd,"command",w_off,"offline","description");
  90     printf("|%-*s|%-*s|%s\n",w_cmd,"-------",w_off,"-------","-----------");
  91   } else {
  92     printf("%-*s|%-*s|%s\n",w_cmd,"command",w_off,"offline","description");
  93     printf("%-*s|%-*s|%s\n",w_cmd,"-------",w_off,"-------","-----------");
  94   }
  95
  96   while (cmds[i].Name)
  97   {
  98     char* cmd_offline = "N";
  99     if(cmds[i].Help[0] == '{' && ++i) continue;
 100
 101     if ( cmds[i].Offline) cmd_offline = "Y";
 102     if (markdown)
 103       printf("|`%s%-*s`|%-*s|`%s`\n", parent, w_cmd-(int)strlen(parent)-2, cmds[i].Name, w_off, cmd_offline, cmds[i].Help);
 104     else
 105       printf("%s%-*s|%-*s|%s\n", parent, w_cmd-(int)strlen(parent), cmds[i].Name, w_off, cmd_offline, cmds[i].Help);
 106     ++i;
 107   }
 108   printf("\n\n");
 109   i=0;
 110   // Then, print the categories. These will go into subsections with their own tables
 111
 112   while (cmds[i].Name)
 113   {
 114     if(cmds[i].Help[0] != '{' && ++i)  continue;
 115
 116     printf("### %s%s\n\n %s\n\n", parent, cmds[i].Name, cmds[i].Help);
 117
 118     char currentparent[512] = {0};
 119     snprintf(currentparent, sizeof currentparent, "%s%s ", parent, cmds[i].Name);
 120     char *old_parent = parent;
 121     parent = currentparent;
 122     // This is what causes the recursion, since commands Parse-implementation
 123     // in turn calls the CmdsParse above.
 124     if (markdown)
 125       cmds[i].Parse("XX_internal_command_dump_markdown_XX");
 126     else
 127       cmds[i].Parse("XX_internal_command_dump_XX");
 128     parent = old_parent;
 129     ++i;
 130   }
 131
 132 }