vstr - String library, safe, quick and easy to use.
Vstr is a safe and fast string library for C. It is designed for network communication. Its design uses blocks of ptr+length data, so adding, substituting, and deleting data are all fast operations. This model also allows it to do automatic referencing for mmap() areas of memory. Another big feature of the library is a POSIX and ISO 9899:1999 compliant printf() like function.