unsigned long mysql_hex_string(char * to,
const char * from,
unsigned long len);to - result buffer
from - the string which will be encoded
len - length of the string (from)
This function is used to create a hexadecimal string which can be used in SQL statements. e.g. INSERT INTO my_blob VALUES(X'A0E1CD').
Returns the length of the encoded string without the trailing null character.