reveng RunModel - add endian switches

diff --git a/client/cmdcrc.c b/client/cmdcrc.c
index f93ab99d178eab9d0f61e470aed0ad094293e71d..3e68afb947ce470c01289d86e32014f002cd9877 100644 (file)
--- a/client/cmdcrc.c
+++ b/client/cmdcrc.c
@@ -295,7 +295,13 @@ int CmdrevengTest(const char *Cmd){
 }
 
 //-c || -v
-int RunModel(char *inModel, char *inHexStr, bool reverse, char *result){
+//inModel = valid model name string - CRC-8
+//inHexStr = input hex string to calculate crc on
+//reverse = reverse calc option if true
+//endian = {0 = calc default endian input and output, b = big endian input and output, B = big endian output, r = right justified
+//          l = little endian input and output, L = little endian output only, t = left justified}
+//result = calculated crc hex string
+int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *result){
        /* default values */
        static model_t model = {
                PZERO,          // no CRC polynomial, user must specify
@@ -331,6 +337,34 @@ int RunModel(char *inModel, char *inHexStr, bool reverse, char *result){
        width = plen(model.spoly);
        rflags |= R_HAVEP | R_HAVEI | R_HAVERI | R_HAVERO | R_HAVEX;
        
+       //set flags
+       switch (endian) {
+               case 'b': /* b  big-endian (RefIn = false, RefOut = false ) */
+                       model.flags &= ~P_REFIN;
+                       rflags |= R_HAVERI;
+                       /* fall through: */
+               case 'B': /* B  big-endian output (RefOut = false) */
+                       model.flags &= ~P_REFOUT;
+                       rflags |= R_HAVERO;
+                       mnovel(&model);
+                       /* fall through: */
+               case 'r': /* r  right-justified */
+                       model.flags |= P_RTJUST;
+                       break;
+               case 'l': /* l  little-endian input and output */
+                       model.flags |= P_REFIN;
+                       rflags |= R_HAVERI;
+                       /* fall through: */
+               case 'L': /* L  little-endian output */
+                       model.flags |= P_REFOUT;
+                       rflags |= R_HAVERO;
+                       mnovel(&model);
+                       /* fall through: */
+               case 't': /* t  left-justified */
+                       model.flags &= ~P_RTJUST;
+                       break;
+       }
+
        mcanon(&model);
 
        if (reverse) {
@@ -402,15 +436,16 @@ int CmdrevengTestC(const char *Cmd){
        char inHexStr[30] = {0x00};
        char result[30];
        int dataLen;
-
+       char endian = 0;
        dataLen = param_getstr(Cmd, cmdp++, inModel);
        if (dataLen < 4) return 0;
        dataLen = param_getstr(Cmd, cmdp++, inHexStr);
        if (dataLen < 4) return 0;
-       bool reverse = (param_get8(Cmd, cmdp)) ? true : false;
+       bool reverse = (param_get8(Cmd, cmdp++)) ? true : false;
+       endian = param_getchar(Cmd, cmdp++); 
 
        //PrintAndLog("mod: %s, hex: %s, rev %d", inModel, inHexStr, reverse);
-       int ans = RunModel(inModel, inHexStr, reverse, result);
+       int ans = RunModel(inModel, inHexStr, reverse, endian, result);
        if (!ans) return 0;
        
        PrintAndLog("Result: %s",result);

diff --git a/client/cmdcrc.h b/client/cmdcrc.h
index 53aa935edd6d851dafd8252f94dc5674e601b98d..5b324020e64e5374a65b0959ed2225eece9fff85 100644 (file)
--- a/client/cmdcrc.h
+++ b/client/cmdcrc.h
@@ -15,5 +15,5 @@ int CmdCrc(const char *Cmd);
 int CmdrevengTest(const char *Cmd);
 int CmdrevengTestC(const char *Cmd);
 int GetModels(char *Models[], int *count, uint32_t *width);
-int RunModel(char *inModel, char *inHexStr, bool reverse, char *result);
+int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *result);
 #endif