CHG: some of @marshmellow42 's ref: https://github.com/marshmellow42/proxmark3/commi...

[proxmark3-svn] / client / cmdcrc.c

diff --git a/client/cmdcrc.c b/client/cmdcrc.c
index 4c1c74f54860747058f71fa6678c1c14da1fc32a..249fdebc0e5887385eda4c5faf16a92c8360c6a3 100644 (file)
--- a/client/cmdcrc.c
+++ b/client/cmdcrc.c
@@ -39,13 +39,14 @@ int split(char *str, char *arr[MAX_ARGS]){
     int wordCnt = 0;
 
     while(1){
-        while(isspace(str[beginIndex])){
+        while(isspace(str[beginIndex])) {
             ++beginIndex;
         }
-        if(str[beginIndex] == '\0')
+        if(str[beginIndex] == '\0') {
             break;
+               }
         endIndex = beginIndex;
-        while (str[endIndex] && !isspace(str[endIndex])){
+        while (str[endIndex] && !isspace(str[endIndex])) {
             ++endIndex;
         }
         int len = endIndex - beginIndex;
@@ -151,7 +152,7 @@ int GetModels(char *Models[], int *count, uint8_t *width){
                 * searched.
                 */
                /* scan against preset models */
-               if(~uflags & C_FORCE) {
+               if (~uflags & C_FORCE) {
                        pass = 0;
                        Cnt = 0;
                        do {
@@ -161,34 +162,36 @@ int GetModels(char *Models[], int *count, uint8_t *width){
                                        mbynum(&pset, --psets);
                                        
                                        /* skip if different width, or refin or refout don't match */
-                               if(plen(pset.spoly) != width[0] || (model.flags ^ pset.flags) & (P_REFIN | P_REFOUT))
+                                       if( plen(pset.spoly) != width[0] || (model.flags ^ pset.flags) & (P_REFIN | P_REFOUT))
                                                continue;
                                        /* skip if the preset doesn't match specified parameters */
-                                       if(rflags & R_HAVEP && pcmp(&model.spoly, &pset.spoly))
+                                       if (rflags & R_HAVEP && pcmp(&model.spoly, &pset.spoly))
                                                continue;
-                                       if(rflags & R_HAVEI && psncmp(&model.init, &pset.init))
+                                       if (rflags & R_HAVEI && psncmp(&model.init, &pset.init))
                                                continue;
-                                       if(rflags & R_HAVEX && psncmp(&model.xorout, &pset.xorout))
+                                       if (rflags & R_HAVEX && psncmp(&model.xorout, &pset.xorout))
                                                continue;
                        
-                               //for additional args (not used yet, maybe future?)
+                                       //for additional args (not used yet, maybe future?)
                                        apoly = pclone(pset.xorout);
-                                       if(pset.flags & P_REFOUT)
+                                       
+                                       if (pset.flags & P_REFOUT)
                                                prev(&apoly);
-                               
-                                       for(qptr = apolys; qptr < pptr; ++qptr) {
+                                       
+                                       
+                                       for (qptr = apolys; qptr < pptr; ++qptr) {
                                                crc = pcrc(*qptr, pset.spoly, pset.init, apoly, 0);
-                                               if(ptst(crc)) {
+                                               if (ptst(crc)) {
                                                        pfree(&crc);
                                                        break;
-                                               } else
-                                                       pfree(&crc);
+                                               }
+                                               pfree(&crc);
                                        }
                                        pfree(&apoly);
-                                       if(qptr == pptr) {
+                                       
+                                       if (qptr == pptr) {
 
                                                /* the selected model solved all arguments */
-
                                                mcanon(&pset);
                                                
                                                size_t size = (pset.name && *pset.name) ? strlen(pset.name) : 6;
@@ -198,7 +201,7 @@ int GetModels(char *Models[], int *count, uint8_t *width){
                                                        PrintAndLog("out of memory?");
                                                        return 0;
                                                }
-                                       width[Cnt] = width[0];
+                                               width[Cnt] = width[0];
                                                memcpy(tmp, pset.name, size);
                                                Models[Cnt++] = tmp;
                                                *count = Cnt;
@@ -208,44 +211,50 @@ int GetModels(char *Models[], int *count, uint8_t *width){
                                mfree(&pset);
 
                                /* toggle refIn/refOut and reflect arguments */
-                               if(~rflags & R_HAVERI) {
+                               if (~rflags & R_HAVERI) {
                                        model.flags ^= P_REFIN | P_REFOUT;
-                                       for(qptr = apolys; qptr < pptr; ++qptr)
+                                       for (qptr = apolys; qptr < pptr; ++qptr) {
                                                prevch(qptr, ibperhx);
+                                       }
                                }
-                       } while(~rflags & R_HAVERI && ++pass < 2);
+                       } while (~rflags & R_HAVERI && ++pass < 2);
                }
                //got everything now free the memory...
 
-               if(uflags & C_RESULT) {
-                       for(qptr = apolys; qptr < pptr; ++qptr)
+               if (uflags & C_RESULT) {
+                       for (qptr = apolys; qptr < pptr; ++qptr) {
                                pfree(qptr);
+                       }
                }
-               if(!(model.flags & P_REFIN) != !(model.flags & P_REFOUT))
+               if (!(model.flags & P_REFIN) != !(model.flags & P_REFOUT))
                        return uerr("cannot search for crossed-endian models");
 
                pass = 0;
                do {
                        mptr = candmods = reveng(&model, qpoly, rflags, args, apolys);
-                       if(mptr && plen(mptr->spoly))
+                       if (mptr && plen(mptr->spoly)) {
                                uflags |= C_RESULT;
-                       while(mptr && plen(mptr->spoly)) {
+                       }
+                       while (mptr && plen(mptr->spoly)) {
                                mfree(mptr++);
                        }
                        free(candmods);
-                       if(~rflags & R_HAVERI) {
+                       if (~rflags & R_HAVERI) {
                                model.flags ^= P_REFIN | P_REFOUT;
-                               for(qptr = apolys; qptr < pptr; ++qptr)
+                               for (qptr = apolys; qptr < pptr; ++qptr) {
                                        prevch(qptr, ibperhx);
+                               }
                        }
-               } while(~rflags & R_HAVERI && ++pass < 2);
-               for(qptr = apolys; qptr < pptr; ++qptr)
+               } while (~rflags & R_HAVERI && ++pass < 2);
+               
+               for (qptr = apolys; qptr < pptr; ++qptr) {
                        pfree(qptr);
+               }
                free(apolys);
-               if(~uflags & C_RESULT)
+               if (~uflags & C_RESULT)
                        return uerr("no models found");
+               
                mfree(&model);
-
        }
        return 1;
 }
@@ -281,11 +290,11 @@ int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *res
 
        SETBMP();
        //set model
-       if(!(c = mbynam(&model, inModel))) {
+       if (!(c = mbynam(&model, inModel))) {
                PrintAndLog("error: preset model '%s' not found.  Use reveng -D to list presets.", inModel);
                return 0;
        }
-       if(c < 0)
+       if (c < 0)
                return uerr("no preset models available");
 
        rflags |= R_HAVEP | R_HAVEI | R_HAVERI | R_HAVERO | R_HAVEX;
@@ -340,7 +349,7 @@ int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *res
                 * Consequently Init is the mirror image of the
                 * one resulting from -V, and so we have:
                 */
-               if(~model.flags & P_REFOUT) {
+               if (~model.flags & P_REFOUT) {
                        prev(&model.init);
                        prev(&model.xorout);
                }
@@ -355,17 +364,17 @@ int RunModel(char *inModel, char *inHexStr, bool reverse, char endian, char *res
        /* in the Williams model, xorout is applied after the refout stage.
         * as refout is part of ptostr(), we reverse xorout here.
         */
-       if(model.flags & P_REFOUT)
+       if (model.flags & P_REFOUT)
                prev(&model.xorout);
 
        apoly = strtop(inHexStr, model.flags, ibperhx);
 
-       if(reverse)
+       if (reverse)
                prev(&apoly);
 
        crc = pcrc(apoly, model.spoly, model.init, model.xorout, model.flags);
 
-       if(reverse)
+       if (reverse)
                prev(&crc);
 
        string = ptostr(crc, model.flags, obperhx);