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
  19 void CmdsHelp(const command_t Commands[])
  20 {
  21   if (Commands[0].Name == NULL)
  22     return;
  23   int i = 0;
  24   while (Commands[i].Name)
  25   {
  26     if (!offline || Commands[i].Offline)
  27        PrintAndLog("%-16s %s", Commands[i].Name, Commands[i].Help);
  28     ++i;
  29   }
  30 }
  31
  32
  33 int CmdsParse(const command_t Commands[], const char *Cmd)
  34 {
  35         if(strcmp( Cmd, "XX_internal_command_dump_XX") == 0)
  36         {// Help dump children
  37                 dumpCommandsRecursive(Commands, 0);
  38                 return 0;
  39         }
  40         if(strcmp( Cmd, "XX_internal_command_dump_markdown_XX") == 0)
  41         {// Markdown help dump children
  42                 dumpCommandsRecursive(Commands, 1);
  43                 return 0;
  44         }
  45         char cmd_name[32];
  46         int len = 0;
  47         memset(cmd_name, 0, 32);
  48         sscanf(Cmd, "%31s%n", cmd_name, &len);
  49         int i = 0;
  50         while (Commands[i].Name && strcmp(Commands[i].Name, cmd_name))
  51                 ++i;
  52
  53         /* try to find exactly one prefix-match */
  54         if(!Commands[i].Name) {
  55                 int last_match = 0;
  56                 int matches = 0;
  57
  58                 for(i=0;Commands[i].Name;i++) {
  59                         if( !strncmp(Commands[i].Name, cmd_name, strlen(cmd_name)) ) {
  60                                 last_match = i;
  61                                 matches++;
  62                         }
  63                 }
  64                 if(matches == 1) i=last_match;
  65         }
  66
  67         if (Commands[i].Name) {
  68                 while (Cmd[len] == ' ')
  69                         ++len;
  70         return Commands[i].Parse(Cmd + len);
  71         } else {
  72                 // show help for selected hierarchy or if command not recognised
  73                 CmdsHelp(Commands);
  74         }
  75
  76         return 0;
  77 }
  78
  79 char pparent[512] = {0};
  80 char *parent = pparent;
  81
  82 void dumpCommandsRecursive(const command_t cmds[], int markdown)
  83 {
  84   if (cmds[0].Name == NULL)
  85     return;
  86
  87   int i = 0;
  88   int w_cmd=25;
  89   int w_off=8;
  90   // First, dump all single commands, which are not a container for
  91   // other commands
  92   if (markdown) {
  93     printf("|%-*s|%-*s|%s\n",w_cmd,"command",w_off,"offline","description");
  94     printf("|%-*s|%-*s|%s\n",w_cmd,"-------",w_off,"-------","-----------");
  95   } else {
  96     printf("%-*s|%-*s|%s\n",w_cmd,"command",w_off,"offline","description");
  97     printf("%-*s|%-*s|%s\n",w_cmd,"-------",w_off,"-------","-----------");
  98   }
  99
 100   while (cmds[i].Name)
 101   {
 102     char* cmd_offline = "N";
 103     if(cmds[i].Help[0] == '{' && ++i) continue;
 104
 105     if ( cmds[i].Offline) cmd_offline = "Y";
 106     if (markdown)
 107       printf("|`%s%-*s`|%-*s|`%s`\n", parent, w_cmd-(int)strlen(parent)-2, cmds[i].Name, w_off, cmd_offline, cmds[i].Help);
 108     else
 109       printf("%s%-*s|%-*s|%s\n", parent, w_cmd-(int)strlen(parent), cmds[i].Name, w_off, cmd_offline, cmds[i].Help);
 110     ++i;
 111   }
 112   printf("\n\n");
 113   i=0;
 114   // Then, print the categories. These will go into subsections with their own tables
 115
 116   while (cmds[i].Name)
 117   {
 118     if(cmds[i].Help[0] != '{' && ++i)  continue;
 119
 120     printf("### %s%s\n\n %s\n\n", parent, cmds[i].Name, cmds[i].Help);
 121
 122     char currentparent[512] = {0};
 123     snprintf(currentparent, sizeof currentparent, "%s%s ", parent, cmds[i].Name);
 124     char *old_parent = parent;
 125     parent = currentparent;
 126     // This is what causes the recursion, since commands Parse-implementation
 127     // in turn calls the CmdsParse above.
 128     if (markdown)
 129       cmds[i].Parse("XX_internal_command_dump_markdown_XX");
 130     else
 131       cmds[i].Parse("XX_internal_command_dump_XX");
 132     parent = old_parent;
 133     ++i;
 134   }
 135
 136 }