POSIX.md

C POSIX library header files

Header file	Description	Status
<aio.h>	Asynchronous input and output	Implemented with some limitations
<arpa/inet.h>	Functions for manipulating numeric IP addresses (part of Berkley sockets)	Complete
<assert.h>	Verify assumptions	Complete
<complex.h>	Complex Arithmetic	Complete
<cpio.h>	Magic numbers for the cpio archive format	Complete
<ctype.h>	Character types	Complete
<dirent.h>	Allows the opening and listing of directories	Complete
<dlfcn.h>	Dynamic linking	Complete
<errno.h>	Retrieving Error Number	Complete
<fcntl.h>	File opening, locking and other operations	Complete
<fenv.h>	Floating-Point Environment (FPE)	Complete
<float.h>	Floating-point types	Complete
<fnmatch.h>	Filename matching	Complete
<ftw.h>	File tree traversal	Complete
<glob.h>	Pathname "globbing" (pattern-matching)	Complete
<grp.h>	User group information and control	Present with missing functions
<iconv.h>	Codeset conversion facility	Complete
<inttypes.h>	Fixed sized integer types	Complete
<iso646.h>	Alternative spellings	Complete
<langinfo.h>	Language information constants – builds on C localization functions	Complete
<libgen.h>	Pathname manipulation	Complete
<limits.h>	Implementation-defined constants	Complete
<math.h>	Mathematical declarations	Complete
<monetary.h>	String formatting of monetary units	Not present
<mqueue.h>	Message queue	Not present
<ndbm.h>	NDBM database operations	Complete
<net/if.h>	Listing of local network interfaces	Complete
<netdb.h>	Translating protocol and host names into numeric addresses (part of Berkeley sockets	Complete
<netinet/in.h>	Defines Internet protocol and address family (part of Berkley sockets)	Complete
<netinet/tcp.h>	Issue	Complete
<nl_types.h>	Localization message catalog functions	Complete
<poll.h>	Asynchronous file descriptor multiplexing	Present with missing functions
<pthread.h>	Defines an API for creating and manipulating POSIX threads	Complete
<pwd.h>	Passwd (user information) access and control	Present with missing functions
<regex.h>	Regular expression matching	Complete
<sched.h>	Execution scheduling	Present with missing functions
<search.h>	Search tables	Complete
<semaphore.h>	POSIX semaphores	Complete
<setjmp.h>	Stack environment declarations	Complete
<signal.h>	Signals	Complete
<spawn.h>	Process spawning	Not present
<stdarg.h>	Handle Variable Argument List	Complete
<stdbool.h>	Boolean type and values	Complete
<stddef.h>	Standard type definitions	Complete
<stdint.h>	Integer types	Complete
<stdio.h>	Standard buffered input/output	Complete
<stdlib.h>	Standard library definitions	Complete
<string.h>	Several String Operations	Complete
<strings.h>	Case-insensitive string comparisons	Complete
<stropts.h>	Stream manipulation, including ioctl	Not present
<sys/ipc.h>	Inter-process Communication (IPC)	Complete
<sys/mman.h>	Memory management, including POSIX shared memory and memory mapped files	Present with missing functions
<sys/msg.h>	POSIX messages queues	Complete
<sys/resource.h>	Resource usage, priorities, and limiting	Present with missing functions
<sys/select.h>	Synchronous I/O multiplexing	Complete
<sys/sem.h>	XSI (SysV style)semaphores	Complete
<sys/shm.h>	XSI (SysV style) shared memory	Complete
<sys/socket.h>	Main Berkeley sockets header	Complete
<sys/stat.h>	File information	Complete
<sys/statvfs.h>	File System information	Complete
<sys/time.h>	Time and date functions and structures	Complete
<sys/times.h>	File access and modification times	Complete
<sys/types.h>	Various data types used elsewhere	Complete
<sys/uio.h>	Vectored I/O operations	Complete
<sys/un.h>	Unix domain sockets	Complete
<sys/utsname.h>	Operating system information, including uname	Complete
<sys/wait.h>	Status of terminated child processes	Present with missing functions
<syslog.h>	System error logging	Complete
<tar.h>	Magic numbers for the tar archive format	Complete
<termios.h>	Allows terminal I/O interfaces	Complete
<tgmath.h>	Type-Generic Macros	Complete
<time.h>	Type-Generic Macros	Complete
<trace.h>	Tracing of runtime behavior (DEPRECATED)	Not present
<ulimit.h>	Resource limiting (DEPRECATED in favor of <sys/resource.h>)	Present with missing functions
<unistd.h>	Various essential POSIX functions and constants	Complete
<utime.h>	access and modification times	Complete
<utmpx.h>	User accounting database functions	Not present
<wchar.h>	Wide-Character Handling	Complete
<wctype.h>	Wide-Character Classification and Mapping Utilities	Complete
<wordexp.h>	Word-expansion like the shell would perform	Not present