int hex2bin (const char *phex, unsigned char *pbin, int size)
{
int i;
for (i = 0; i < size; i++, phex += 2, pbin++) {
*pbin = (unsigned char)(c2hex (phex[0]) * 16 + c2hex (phex[1]));
}
return i;
}
void print_ip_steady(int line, int col)
{
if (!line) {
if (!col) {
print_lim();
fprintf(stderr, WC "|" FC "Ver: " VC "%c ", tok[0]);
fprintf(stderr, WC "|" FC "IHL: " VC "%c ", tok[1]);
ip.hlen = c2hex(tok[1]);
/* if header length is > 5 (in 32bit words) then
we must take into account to view the additional
options in the ip header */
if (ip.hlen > 5) {
ip.options++;
ip.left = (ip.hlen - 5) << 1;
}
else
ip.options = 0;
fprintf(stderr, WC "|" FC " ToS: " VC "%s ", &tok[2]);
}
else if (col == 1) {
/* copy the next portion of XXXX inside buf
take into account that there is a space between
each of the 4-char hex pairs that get formed */
ip.total_len = ((((c2hex(tok[0]) & 0x0f) << 12)
| ((c2hex(tok[1]) & 0x0f) << 8))
| ((c2hex(tok[2]) & 0x0f) << 4))
| (c2hex(tok[3]) & 0x0f);
fprintf(stderr, WC "|" FC " Total Length: " VC "%s " WC "|", tok);
print_lim();
}
else if (col == 2) {
fprintf(stderr, WC "|" FC " Identification: " VC "%s ", tok);
}
else if (col == 3) {
/* this (not really)obfu thing prints the 3bit flags of the ip header */
char c = c2hex(tok[0]);
fprintf(stderr, WC "|" FC "F: " VC "%x ", (c & 0x0e) >> 1);
/* print the 13bit fragment offset */
unsigned int t;
t = ((((c & 0x01) << 12)
| ((c2hex(tok[1]) & 0x0f) << 8))
| ((c2hex(tok[2]) & 0x0f) << 4))
| (c2hex(tok[3]) & 0x0f);
fprintf(stderr, WC "|" FC " Fragment Offset:" VC "%4x " WC "|", t);
print_lim();
}
else if (col == 4) {
void UUID::setUUID(const std::string & uuid_string) {
//reset UUID to zero
for (int i = 0; i < 4; ++i) {
((uint32_t *)(data + 8))[i] = 0;
}
//set the UUID from the string, char by char
int i = 0;
for (size_t j = 0; j < uuid_string.size(); ++j) {
if (uuid_string[j] == '-') {
continue;
}
data[8 + i / 2] |= (c2hex(uuid_string[j]) << ((~i & 1) << 2));
++i;
}
}
