sphlib provides optimized implementations in both C and Java of cryptographic hash functions. The C code includes "small footprint" variants optimized for architectures with low L1 cache (e.g. WiFi routers running OpenWRT). The C code comes with a command-line tool that can serve as a drop-in replacement for md5sum, sha1sum, sha256sum, etc. for all implemented hash functions. The Java code is compatible with J2ME. There are implementations of fourteen "second-round" SHA-3 candidates, for all output lengths: BLAKE, Blue Midnight Wish, CubeHash, ECHO, Fugue, Grøstl, Hamsi, JH, Keccak, Luffa, Shabal, SHAvite-3, SIMD, and Skein. Some pre-SHA-3 hash functions (including MD4, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, RIPEMD-160, and others) are also implemented.
libnostd is a compatibility library for common, non-standard BSD, GNU, and Win32 APIs. No additional compilation is required; it has header-based macro and static inline definitions. It includes transparent cross-platform support for arc4random(), arc4random_buf(), strlcpy(), strlcat(), err.h, sys/param.h, sys/queue.h, sys/tree.h, sys/time.h, stdatomic.h (ISO C1x proposal), strdupa(), strndupa(), and strnlen().
sge2d, also known as SDL Game Engine, is a platform-independent 2D game programming framework for C/C++ programmers with the least possible dependencies for easy porting and with a focus on easy API calls and the requirement of commercial programmers. Major features include animated sprites with exact pixel collision detection, A* pathfinding, encrypted files, and more.
tinypy is a minimalist implementation of Python in 64k of code. It includes a parser and bytecode compiler written in python. tinypy runs on its own C-based virtual machine with garbage collection. It supports a fairly decent subset of Python, including classes with single inheritance, functions with variable or keyword arguments, strings, lists, dicts, numbers, modules, list comprehensions, exceptions with full traceback, some builtins, and several modules.
Python bsddb3 is a Python module that provides a nearly complete wrapping of the Oracle/Sleepycat C API for the database environment, database, cursor, sequence, and transaction objects, and each of these is exposed as a Python type in the bsddb3.db module. The database objects can use various access methods: btree, hash, recno, and queue. It has complete support for Berkeley DB distributed transactions, and complete support for the Berkeley DB Replication Manager and base replication API. The goal is to mirror most of the real Berkeley DB API.
Leandoc is a small documentation generator. Unlike other generators like Doxygen or epydoc, it is designed with simplicity in mind. While the others generate dozens of files, a complex directory hierarchy, and an untold number of support files, leandoc parses the files through the command line and prints one single file to stdout.
ustr (Micro string library) is a string API for C. It has tiny overhead over just plain strdup(), is much safer, is easier to use, is faster for many operations, can be used with read-only or automatically allocated data. You don't even need to link to the library to use it (so there are no dependencies).