The util_cookie_find function finds a specific cookie in a cookie string and returns its value.
char *util_cookie_find(char *cookie, char *name);
If successful, this function returns a pointer to the NULL-terminated value of the cookie. Otherwise, this function returns NULL. This function modifies the cookie string parameter by null-terminating the name and value.
char *cookie is the value of the Cookie: request header.
char *name is the name of the cookie whose value is to be retrieved.