clean up mfu device side code

+ add xor calc to util (prep for desfire)
commented out MifareUWriteBlockCompat as it isn't used in client
currently (it is a command we could support..  but why?)
relabeled a few device side mfu functions to be clearer.
This commit is contained in:
marshmellow42 2015-05-27 12:24:13 -04:00
parent be10fe2f11
commit 4973f23d3c
7 changed files with 85 additions and 69 deletions

View file

@ -108,12 +108,12 @@ void print_hex(const uint8_t * data, const size_t len)
printf("\n");
}
char * sprint_hex(const uint8_t * data, const size_t len) {
char *sprint_hex(const uint8_t *data, const size_t len) {
int maxLen = ( len > 1024/3) ? 1024/3 : len;
static char buf[1024];
memset(buf, 0x00, 1024);
char * tmp = buf;
char *tmp = buf;
size_t i;
for (i=0; i < maxLen; ++i, tmp += 3)
@ -444,3 +444,12 @@ void wiegand_add_parity(char *target, char *source, char length)
target += length;
*(target)= GetParity(source + length / 2, ODD, length / 2);
}
void xor(unsigned char *dst, unsigned char *src, size_t len) {
for( ; len > 0; len--,dst++,src++)
*dst ^= *src;
}
int32_t le24toh (uint8_t data[3]) {
return (data[2] << 16) | (data[1] << 8) | data[0];
}