X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c805748f340391011d647f7f524d1744563ddec1..9aeda6cbfbfadd3be02f43165617b1ec4ff45425:/client/util.c diff --git a/client/util.c b/client/util.c index 99a26a40..a3590a39 100644 --- a/client/util.c +++ b/client/util.c @@ -9,15 +9,12 @@ //----------------------------------------------------------------------------- #include "util.h" -#include "proxmark3.h" #define MAX_BIN_BREAK_LENGTH (3072+384+1) #ifndef _WIN32 -#include -#include +#include -int ukbhit(void) -{ +int ukbhit(void) { int cnt = 0; int error; static struct termios Otty, Ntty; @@ -40,7 +37,6 @@ int ukbhit(void) } #else -#include int ukbhit(void) { return kbhit(); } @@ -65,7 +61,10 @@ void AddLogLine(char *file, char *extData, char *c) { fprintf(f, "%s", extData); fprintf(f, "%s\n", c); fflush(f); - fclose(f); + if (f) { + fclose(f); + f = NULL; + } } void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){ @@ -145,11 +144,11 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea // make sure we don't go beyond our char array memory size_t in_index = 0, out_index = 0; - int max_len; + int rowlen; if (breaks==0) - max_len = ( len > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len; + rowlen = ( len > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len; else - max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks); + rowlen = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks); static char buf[MAX_BIN_BREAK_LENGTH]; // 3072 + end of line characters if broken at 8 bits //clear memory @@ -157,11 +156,11 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea char *tmp = buf; // loop through the out_index to make sure we don't go too far - for (out_index=0; out_index < max_len-2; out_index++) { + for (out_index=0; out_index < rowlen-1; out_index++) { // set character - sprintf(tmp++, "%u", (unsigned int) data[in_index]); + sprintf(tmp++, "%u", data[in_index]); // check if a line break is needed and we have room to print it in our array - if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != max_len) ) { + if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != rowlen) ) { // increment and print line break out_index++; sprintf(tmp++, "%s","\n"); @@ -169,7 +168,7 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea in_index++; } // last char. - sprintf(tmp++, "%u", (unsigned int) data[in_index]); + sprintf(tmp++, "%u", data[in_index]); return buf; } @@ -182,23 +181,45 @@ char *sprint_hex_ascii(const uint8_t *data, const size_t len) { char *tmp = buf; memset(buf, 0x00, 1024); size_t max_len = (len > 1010) ? 1010 : len; - sprintf(tmp, "%s| %s", sprint_hex(data, max_len) , data); + + sprintf(tmp, "%s| ", sprint_hex(data, max_len) ); + + size_t i = 0; + size_t pos = (max_len * 3)+2; + while(i < max_len){ + char c = data[i]; + if ( (c < 32) || (c == 127)) + c = '.'; + sprintf(tmp+pos+i, "%c", c); + ++i; + } return buf; } -void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) -{ +char *sprint_ascii(const uint8_t *data, const size_t len) { + static char buf[1024]; + char *tmp = buf; + memset(buf, 0x00, 1024); + size_t max_len = (len > 1010) ? 1010 : len; + size_t i = 0; + while(i < max_len){ + char c = data[i]; + tmp[i] = ((c < 32) || (c == 127)) ? '.' : c; + ++i; + } + return buf; +} + +void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { - dest[len] = (uint8_t) n; + dest[len] = n & 0xFF; n >>= 8; } } -uint64_t bytes_to_num(uint8_t* src, size_t len) -{ +uint64_t bytes_to_num(uint8_t* src, size_t len) { uint64_t num = 0; - while (len--) - { + while (len--) { num = (num << 8) | (*src); src++; } @@ -212,6 +233,7 @@ void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { n >>= 1; } } + //least significant bit first void num_to_bytebitsLSBF(uint64_t n, size_t len, uint8_t *dest) { for(int i = 0 ; i < len ; ++i) { @@ -220,13 +242,12 @@ void num_to_bytebitsLSBF(uint64_t n, size_t len, uint8_t *dest) { } } - // aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp // to // hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii // up to 64 bytes or 512 bits uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){ - uint8_t buf[64]; + static uint8_t buf[64]; memset(buf, 0x00, 64); uint8_t *tmp = buf; for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ @@ -234,7 +255,7 @@ uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockS tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; } } - return tmp; + return buf; } // takes a uint8_t src array, for len items and reverses the byte order in blocksizes (8,16,32,64), @@ -285,13 +306,10 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) return 0; } - char param_getchar(const char *line, int paramnum) { int bg, en; - if (param_getptr(line, &bg, &en, paramnum)) return 0x00; - return line[bg]; } @@ -332,7 +350,6 @@ uint8_t param_isdec(const char *line, int paramnum) uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) return strtoul(&line[bg], NULL, base) & 0xff; else @@ -342,7 +359,6 @@ uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base) uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) return strtoul(&line[bg], NULL, base); else @@ -352,13 +368,10 @@ uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base) uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) { int bg, en; - if (!param_getptr(line, &bg, &en, paramnum)) return strtoull(&line[bg], NULL, base); else return deflt; - - return 0; } int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) @@ -405,7 +418,6 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) int param_getstr(const char *line, int paramnum, char * str) { int bg, en; - if (param_getptr(line, &bg, &en, paramnum)) return 0; memcpy(str, line + bg, en - bg + 1); @@ -549,10 +561,36 @@ void rol(uint8_t *data, const size_t len){ } // Swap bit order on a uint32_t value. Can be limited by nrbits just use say 8bits reversal +// And clears the rest of the bits. uint32_t SwapBits(uint32_t value, int nrbits) { uint32_t newvalue = 0; for(int i = 0; i < nrbits; i++) { newvalue ^= ((value >> i) & 1) << (nrbits - 1 - i); } return newvalue; +} +/* + ref http://www.csm.ornl.gov/~dunigan/crc.html + Returns the value v with the bottom b [0,32] bits reflected. + Example: reflect(0x3e23L,3) == 0x3e26 +*/ +uint32_t reflect(uint32_t v, int b) { + uint32_t t = v; + for ( int i = 0; i < b; ++i) { + if (t & 1) + v |= BITMASK((b-1)-i); + else + v &= ~BITMASK((b-1)-i); + t>>=1; + } + return v; +} + +uint64_t HornerScheme(uint64_t num, uint64_t divider, uint64_t factor) { + uint64_t remainder=0, quotient=0, result=0; + remainder = num % divider; + quotient = num / divider; + if(!(quotient == 0 && remainder == 0)) + result += HornerScheme(quotient, divider, factor) * factor + remainder; + return result; } \ No newline at end of file