Section 0p : POSIX Header Files
| aio.h | asynchronous input and output |
| arpa_inet.h | definitions for internet operations |
| assert.h | verify program assertion |
| complex.h | complex arithmetic |
| cpio.h | cpio archive values |
| ctype.h | character types |
| dirent.h | format of directory entries |
| dlfcn.h | dynamic linking |
| errno.h | system error numbers |
| fcntl.h | file control options |
| fenv.h | floating-point environment |
| float.h | floating types |
| fmtmsg.h | message display structures |
| fnmatch.h | filename-matching types |
| ftw.h | file tree traversal |
| glob.h | pathname pattern-matching types |
| grp.h | group structure |
| iconv.h | codeset conversion facility |
| inttypes.h | fixed size integer types |
| iso646.h | alternative spellings |
| langinfo.h | language information constants |
| libgen.h | definitions for pattern matching functions |
| limits.h | implementation-defined constants |
| locale.h | category macros |
| math.h | mathematical declarations |
| monetary.h | monetary types |
| mqueue.h | message queues (REALTIME) |
| ndbm.h | definitions for ndbm database operations |
| netdb.h | definitions for network database operations |
| net_if.h | sockets local interfaces |
| netinet_in.h | Internet address family |
| netinet_tcp.h | definitions for the Internet Transmission Control Protocol (TCP) |
| nl_types.h | data types |
| poll.h | definitions for the poll() function |
| pthread.h | threads |
| pwd.h | password structure |
| regex.h | regular expression matching types |
| sched.h | execution scheduling |
| search.h | search tables |
| semaphore.h | semaphores |
| setjmp.h | stack environment declarations |
| signal.h | signals |
| spawn.h | spawn (ADVANCED REALTIME) |
| stdarg.h | handle variable argument list |
| stdbool.h | boolean type and values |
| stddef.h | standard type definitions |
| stdint.h | integer types |
| stdio.h | standard buffered input/output |
| stdlib.h | standard library definitions |
| string.h | string operations |
| strings.h | string operations |
| stropts.h | STREAMS interface (STREAMS) |
| sys_ipc.h | XSI interprocess communication access structure |
| syslog.h | definitions for system error logging |
| sys_mman.h | memory management declarations |
| sys_msg.h | XSI message queue structures |
| sys_resource.h | definitions for XSI resource operations |
| sys_select.h | select types |
| sys_sem.h | XSI semaphore facility |
| sys_shm.h | XSI shared memory facility |
| sys_socket.h | main sockets header |
| sys_stat.h | data returned by the stat() function |
| sys_statvfs.h | VFS File System information structure |
| sys_time.h | time types |
| sys_times.h | file access and modification times structure |
| sys_types.h | data types |
| sys_uio.h | definitions for vector I/O operations |
| sys_un.h | definitions for UNIX domain sockets |
| sys_utsname.h | system name structure |
| sys_wait.h | declarations for waiting |
| tar.h | extended tar definitions |
| termios.h | define values for termios |
| tgmath.h | type-generic macros |
| time.h | time types |
| trace.h | tracing |
| ulimit.h | ulimit commands |
| unistd.h | standard symbolic constants and types |
| utime.h | access and modification times structure |
| utmpx.h | user accounting database definitions |
| wchar.h | wide-character handling |
| wctype.h | wide-character classification and mapping utilities |
| wordexp.h | word-expansion types |