/*Converts an edit script in half-byte format to ASCII*/
char *half_bytes_to_ASCII(char *half_bytes, int length){
int i = 0;
char *edit_script = malloc((length+1)*sizeof(*edit_script));
assert(edit_script);
for (i = 0; i < length; i++) {
/*Copy the left half-byte of the current byte*/
if (i % 2 == 0) {
char left = half_bytes[i/2] & (((char)15) << 4);
left >>= 4;
left &= (char)15;
edit_script[i] = half_byte_to_char(left);
/*Handle the direction byte so that the match bit of the
*half-byte is added to the direction byte separately from the
*direction bit.
*/
if (i == 0) {
left &= (char)1;
edit_script[i] = half_byte_to_char(left);
if ((half_bytes[0] & (char)0x80) != 0)
edit_script[i] |= (char)0x80;
}
}
else /*Copy the right half-byte of the current byte*/
void aesm_dbg_format_hex(const uint8_t *data, uint32_t data_len, char *out_buf, uint32_t buf_size)
{
uint32_t i;
assert(buf_size>0);
if(data_len==0){
out_buf[0]='\0';
return;
}
if(buf_size/3>=data_len){
for(i=0;i<data_len;i++){
int low=data[i]&0xF;
int high=(data[i]>>4)&0xF;
out_buf[i*3]=half_byte_to_char(high);
out_buf[i*3+1]=half_byte_to_char(low);
out_buf[i*3+2]=' ';
}
out_buf[data_len*3-1]='\0';
}else if(buf_size>10){
left &= (char)15;
edit_script[i] = half_byte_to_char(left);
/*Handle the direction byte so that the match bit of the
*half-byte is added to the direction byte separately from the
*direction bit.
*/
if (i == 0) {
left &= (char)1;
edit_script[i] = half_byte_to_char(left);
if ((half_bytes[0] & (char)0x80) != 0)
edit_script[i] |= (char)0x80;
}
}
else //Copy the right half-byte of the current byte
edit_script[i] = half_byte_to_char(half_bytes[i/2] & (char)15);
}
edit_script[length] = '\0';
return edit_script;
}
/*Takes in two strings, a bool representing whether or not they are in the same
*direction, and the length of the strings and returns an edit script that can
*convert the reference string to the original string.
*/
char *make_edit_script(char *str, char *ref, bool dir, int length) {
/*direction has its first bit set to 1 to indicate that the edit script
was made from a match*/
int last_edit = 0, current = 1;
char *edit_script, *octal, direction = dir ? '0' : '1';