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reveng RunModel - add endian switches

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marshmellow42 2015-06-08 23:14:11 -04:00
parent 37f4270a24
commit 7a23fca13a
2 changed files with 40 additions and 5 deletions
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43
client/cmdcrc.c
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@ -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);

2
client/cmdcrc.h
View file

@ -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