EM4x05/EM4x69 continued + a couple of icemans utils.

This commit is contained in:
marshmellow42 2017-02-15 23:27:15 -05:00
parent 6f1a597855
commit 59f726c989
4 changed files with 134 additions and 24 deletions

View file

@ -110,6 +110,23 @@ void print_hex(const uint8_t * data, const size_t len)
printf("\n");
}
void print_hex_break(const uint8_t *data, const size_t len, uint8_t breaks) {
int rownum = 0;
printf("[%02d] | ", rownum);
for (int i = 0; i < len; ++i) {
printf("%02X ", data[i]);
// check if a line break is needed
if ( breaks > 0 && !((i+1) % breaks) && (i+1 < len) ) {
++rownum;
printf("\n[%02d] | ", rownum);
}
}
printf("\n");
}
char *sprint_hex(const uint8_t *data, const size_t len) {
int maxLen = ( len > 1024/3) ? 1024/3 : len;
@ -139,7 +156,7 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea
size_t in_index = 0;
// loop through the out_index to make sure we don't go too far
for (size_t out_index=0; out_index < max_len; out_index++) {
for (size_t out_index=0; out_index < max_len-1; out_index++) {
// set character - (should be binary but verify it isn't more than 1 digit)
if (data[in_index]<10)
sprintf(tmp++, "%u", (unsigned int) data[in_index]);
@ -158,6 +175,41 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea
char *sprint_bin(const uint8_t *data, const size_t len) {
return sprint_bin_break(data, len, 0);
}
char *sprint_hex_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;
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;
}
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--) {
@ -184,6 +236,15 @@ void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) {
}
}
//least significant bit first
void num_to_bytebitsLSBF(uint64_t n, size_t len, uint8_t *dest) {
for(int i = 0 ; i < len ; ++i) {
dest[i] = n & 1;
n >>= 1;
}
}
// 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
@ -200,6 +261,16 @@ uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockS
return tmp;
}
// takes a uint8_t src array, for len items and reverses the byte order in blocksizes (8,16,32,64),
// returns: the dest array contains the reordered src array.
void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSize, uint8_t *dest){
for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){
for (size_t i = 0; i < blockSize; i++){
dest[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)];
}
}
}
//assumes little endian
char * printBits(size_t const size, void const * const ptr)
{
@ -332,8 +403,6 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
return strtoull(&line[bg], NULL, base);
else
return deflt;
return 0;
}
int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
@ -490,6 +559,7 @@ void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length)
*(target)= GetParity(source + length / 2, ODD, length / 2);
}
// xor two arrays together for len items. The dst array contains the new xored values.
void xor(unsigned char *dst, unsigned char *src, size_t len) {
for( ; len > 0; len--,dst++,src++)
*dst ^= *src;