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

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2015 iceman <iceman at iuse.se>
   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 // CRC Calculations from the software reveng commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdlib.h>
  12 #ifdef _WIN32
  13 #  include <io.h>
  14 #  include <fcntl.h>
  15 #  ifndef STDIN_FILENO
  16 #    define STDIN_FILENO 0
  17 #  endif /* STDIN_FILENO */
  18 #endif /* _WIN32 */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 //#include <stdlib.h>
  23 //#include <ctype.h>
  24 #include "cmdmain.h"
  25 #include "cmdcrc.h"
  26 #include "reveng/reveng.h"
  27 #include "ui.h"
  28 #include "util.h"
  29
  30 #define MAX_ARGS 20
  31
  32 int split(char *str, char *arr[MAX_ARGS]){
  33         int beginIndex = 0;
  34         int endIndex;
  35         int maxWords = MAX_ARGS;
  36         int wordCnt = 0;
  37
  38         while(1){
  39                 while(isspace(str[beginIndex])){
  40                         ++beginIndex;
  41                 }
  42                 if(str[beginIndex] == '\0')
  43                         break;
  44                         endIndex = beginIndex;
  45                 while (str[endIndex] && !isspace(str[endIndex])){
  46                         ++endIndex;
  47                 }
  48                 int len = endIndex - beginIndex;
  49                 char *tmp = calloc(len + 1, sizeof(char));
  50                 memcpy(tmp, &str[beginIndex], len);
  51                 arr[wordCnt++] = tmp;
  52                 //PrintAndLog("cnt: %d, %s",wordCnt-1, arr[wordCnt-1]);
  53                 beginIndex = endIndex;
  54                 if (wordCnt == maxWords)
  55                         break;
  56         }
  57         return wordCnt;
  58 }
  59
  60 int CmdCrc(const char *Cmd)
  61 {
  62         char name[] = {"reveng "};
  63         char Cmd2[50 + 7];
  64         memcpy(Cmd2, name, 7);
  65         memcpy(Cmd2 + 7, Cmd, 50);
  66         char *argv[MAX_ARGS];
  67         int argc = split(Cmd2, argv);
  68         //PrintAndLog("argc: %d, %s %s Cmd: %s",argc, argv[0], Cmd2, Cmd);
  69         reveng_main(argc, argv);
  70         for(int i = 0; i < argc; ++i){
  71                 //puts(arr[i]);
  72                 free(argv[i]);
  73         }
  74
  75         return 0;
  76 }
  77
  78 int GetModels(char *Models[], int *count, uint32_t *width){
  79         /* default values */
  80         static model_t model = {
  81                 PZERO,          /* no CRC polynomial, user must specify */
  82                 PZERO,          /* Init = 0 */
  83                 P_BE,           /* RefIn = false, RefOut = false, plus P_RTJUST setting in reveng.h */
  84                 PZERO,          /* XorOut = 0 */
  85                 PZERO,          /* check value unused */
  86                 NULL            /* no model name */
  87         };
  88         //int ibperhx = 8, obperhx = 8;
  89         //int rflags = 0, uflags = 0; /* search and UI flags */
  90
  91         //unsigned long width = 0UL;
  92         //int c, mode = 0, args, psets, pass;
  93         //poly_t apoly, crc, qpoly = PZERO, *apolys, *pptr = NULL, *qptr = NULL;
  94         //model_t pset = model, *candmods, *mptr;
  95         //char *string;
  96
  97         //myname = argv[0];
  98
  99         /* stdin must be binary */
 100         #ifdef _WIN32
 101                 _setmode(STDIN_FILENO, _O_BINARY);
 102         #endif /* _WIN32 */
 103
 104         SETBMP();
 105
 106         //pos=0;
 107         //optind=1;
 108
 109         if (*width == 0) { //reveng -D
 110                 *count = mcount();
 111                 //PrintAndLog("Count: %d",*count);
 112                 if(!*count){
 113                         PrintAndLog("no preset models available");
 114                         return 0;
 115                 }
 116                 for(int mode = 0; mode < *count; ++mode) {
 117                         mbynum(&model, mode);
 118                         mcanon(&model);
 119                         size_t size = (model.name && *model.name) ? strlen(model.name) : 6;
 120                         //PrintAndLog("Size: %d, %s",size,model.name);
 121                         char *tmp = calloc(size+1, sizeof(char));
 122                         if (tmp==NULL){
 123                                 PrintAndLog("out of memory?");
 124                                 return 0;
 125                         }
 126                         memcpy(tmp, model.name, size);
 127                         Models[mode] = tmp;
 128                         //ufound(&model);
 129                 }
 130         } else { //reveng -s
 131
 132         }
 133         //PrintAndLog("DONE");
 134         return 1;
 135 }
 136
 137 //test call to GetModels
 138 int CmdrevengTest(const char *Cmd){
 139         char *Models[80];
 140         int count = 0;
 141         uint32_t width = 0;
 142         int ans = GetModels(Models, &count, &width);
 143         if (!ans) return 0;
 144
 145         PrintAndLog("Count: %d",count);
 146         for (int i = 0; i < count; i++){
 147                 PrintAndLog("Model %d: %s",i,Models[i]);
 148                 free(Models[i]);
 149         }
 150         return 1;
 151 }