Squid internals

HTTP header handling (Http*.c)
Manipulation of HTTP header entries
httpHeaderHas(hdr, id)
/* Check if the header has an entry of type 'id' */
httpHeaderGet(hdr, id)
/* Get value of the header of type 'id' */
/* If the header can have multiple entries, a string list is returned */
/* Since the ids represent known types, the programmer will know whether /
the type returned will be a string list or a string */
httpHeaderPut(hdr, id)
/* Place a new header value at type 'id'. Multiple values can exist */
httpHeaderDelById(hdr, id)
/* Delete a header by id */
httpHeaderDelByName(hdr, string)
/* Delete a header by name */
httpHeaderReset(hdr)
/* Cleans a header and resets it to its initial state */
retval = httpHeaderParse(hdr, start, end)
/* Attempt to parse a header between 'start' and 'end' in memory */
/* Returns 1 if its a valid header */