/* Return number of bytes needed to serialize integer 'num' in netstring format. */
size_t netstr_int_serialized_len_cb(int num)
{
size_t str_len_cch;
size_t total_len_cch;
str_len_cch = digits_for_number(num);
total_len_cch = str_len_cch + digits_for_number((int)str_len_cch) + 2;
return total_len_cch * sizeof(TCHAR);
}
/* Netstring format is a safe, easy and mostly human readable format for
serializing strings (well, any binary data). Netstring format is:
- a byte length of the data as a string
- ':' (single character)
- data
- ',' (single character)
e.g. "foo" is encoded as "3:foo,"
I learned about netstring format from djb (http://cr.yp.to/proto/netstrings.txt)
*/
size_t netstr_tstrn_serialized_len_cb(size_t str_len_cch)
{
size_t total_len_cch;
/* 2 is for ':" and ',' */
total_len_cch = str_len_cch + digits_for_number((int)str_len_cch) + 2;
return total_len_cch * sizeof(TCHAR);
}
void netstr_ut(void)
{
assert(1 == digits_for_number(0));
assert(1 == digits_for_number(9));
assert(2 == digits_for_number(10));
assert(2 == digits_for_number(19));
assert(2 == digits_for_number(25));
assert(3 == digits_for_number(125));
assert(4 == digits_for_number(3892));
assert(5 == digits_for_number(38392));
assert(6 == digits_for_number(889931));
assert(7 == digits_for_number(7812345));
assert(1 == digits_for_number(-0));
assert(2 == digits_for_number(-9));
assert(3 == digits_for_number(-10));
assert(4 == digits_for_number(-125));
assert(5 == digits_for_number(-3892));
assert(6 == digits_for_number(-38392));
assert(7 == digits_for_number(-889931));
assert(8 == digits_for_number(-7812345));
}
