Squid internals

MemBufs (src/MemBuf.c) (ctd.)
How they are used
MemBufs are created by the user and then initalised through a call to memBufInit(), unlike most other data types in squid
memBuf buf;
memBufInit(&buf, initial-size, absolute-max)
Add data to the MemBuf
memBufPrintf(&buf, ...);
Write the data to the socket
comm_write_mbuf(fd, buf, callback, callbackdata);
Clean the buffer when you are finished with it
memBufClean(&buf);