mirror of
https://review.haiku-os.org/haiku
synced 2024-11-23 07:18:40 +01:00
344ded80d4
- Convert libroot from a page to a group, so that it can list the included file and functions in the generated book (like the kits) - Add unistd.dox and move the relevant part of ioctl details there - Make sure to use C89-compatible comments only in POSIX headers Change-Id: I8f0412e4c75de6f48018a0436909f8b0076342a4 Reviewed-on: https://review.haiku-os.org/c/haiku/+/6369 Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk> Haiku-Format: Haiku-format Bot <no-reply+haikuformatbot@haiku-os.org>
507 lines
16 KiB
C
507 lines
16 KiB
C
/*
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* Copyright 2004-2024, Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _UNISTD_H_
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#define _UNISTD_H_
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#include <null.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <config/HaikuConfig.h>
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/* access modes */
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#define R_OK 4
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#define W_OK 2
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#define X_OK 1
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#define F_OK 0
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/* standard file descriptors */
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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/* function arguments needed by lockf() */
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#define F_ULOCK 0 /* unlock locked sections */
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#define F_LOCK 1 /* lock a section for exclusive use */
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#define F_TLOCK 2 /* test and lock a section for exclusive use */
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#define F_TEST 3 /* test a section for locks by other processes */
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/* POSIX version support */
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#define _POSIX_VERSION (200809L)
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#define _POSIX2_VERSION (200809L)
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#define _XOPEN_VERSION (700)
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#define _POSIX_VDISABLE ((unsigned char)-2)
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/*
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* POSIX options and options groups.
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* Please keep this list in the same order as the applicable standard.
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* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap02.html#tag_02_01_06
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*/
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#define _POSIX_ADVISORY_INFO (200809L)
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#define _POSIX_ASYNCHRONOUS_IO (-1)
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#define _POSIX_BARRIERS (200809L)
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#define _POSIX_CHOWN_RESTRICTED (1)
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#define _POSIX_CLOCK_SELECTION (200809L)
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#define _POSIX_CPUTIME (200809L)
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#define _POSIX_FSYNC (200809L)
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#define _POSIX_IPV6 (200809L)
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#define _POSIX_JOB_CONTROL (1)
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#define _POSIX_MAPPED_FILES (200809L)
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#define _POSIX_MEMLOCK (-1)
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#define _POSIX_MEMLOCK_RANGE (200809L)
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#define _POSIX_MEMORY_PROTECTION (200809L)
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#define _POSIX_MESSAGE_PASSING (-1)
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#define _POSIX_MONOTONIC_CLOCK (200809L) /* aio_suspend() is missing in Haiku1 */
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#define _POSIX_NO_TRUNC (0)
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#define _POSIX_PRIORITIZED_IO (-1)
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#define _POSIX_PRIORITY_SCHEDULING (-1)
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#define _POSIX_RAW_SOCKETS (-1)
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#define _POSIX_READER_WRITER_LOCKS (200809L)
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#define _POSIX_REALTIME_SIGNALS (200809L)
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#define _POSIX_REGEXP (200809L)
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#define _POSIX_SAVED_IDS (1)
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#define _POSIX_SEMAPHORES (200112L)
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#define _POSIX_SHARED_MEMORY_OBJECTS (200809L)
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#define _POSIX_SHELL (200809L)
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#define _POSIX_SPAWN (200809L)
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#define _POSIX_SPIN_LOCKS (-1)
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#define _POSIX_SPORADIC_SERVER (-1)
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#define _POSIX_SYNCHRONIZED_IO (-1) /* missing fdatasync() */
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#define _POSIX_THREAD_ATTR_STACKADDR (200809L)
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#define _POSIX_THREAD_ATTR_STACKSIZE (200809L)
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#define _POSIX_THREAD_CPUTIME (200809L)
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#define _POSIX_THREAD_PRIO_INHERIT (-1) /* not inplemented */
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#define _POSIX_THREAD_PRIO_PROTECT (-1)
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#define _POSIX_THREAD_PRIORITY_SCHEDULING (-1)
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#define _POSIX_THREAD_PROCESS_SHARED (200809L)
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#define _POSIX_THREAD_ROBUST_PRIO_INHERIT (-1)
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#define _POSIX_THREAD_ROBUST_PRIO_PROTECT (-1)
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#define _POSIX_THREAD_SAFE_FUNCTIONS (200809L)
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#define _POSIX_THREAD_SPORADIC_SERVER (-1)
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#define _POSIX_THREADS (200809L)
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#define _POSIX_TIMEOUTS (-1)
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#define _POSIX_TIMERS (200809L)
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#define _POSIX_TRACE (-1)
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#define _POSIX_TRACE_EVENT_FILTER (-1)
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#define _POSIX_TRACE_INHERIT (-1)
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#define _POSIX_TRACE_LOG (-1)
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#define _POSIX_TYPED_MEMORY_OBJECTS (-1)
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#define __ILP32_OFF32 (-1)
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#ifdef __HAIKU_ARCH_64_BIT
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#define __ILP32_OFFBIG (-1)
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#define __LP64_OFF64 (0)
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#else /* __HAIKU_ARCH_32_BIT */
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#define __ILP32_OFFBIG (0)
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#define __LP64_OFF64 (-1)
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#endif
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#define __LPBIG_OFFBIG (-1)
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#define _POSIX_V6_ILP32_OFF32 __ILP32_OFF32 /* OB */
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#define _POSIX_V6_ILP32_OFFBIG __ILP32_OFFBIG /* OB */
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#define _POSIX_V6_LP64_OFF64 __LP64_OFF64 /* OB */
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#define _POSIX_V6_LPBIG_OFFBIG __LPBIG_OFFBIG /* OB */
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#define _POSIX_V7_ILP32_OFF32 __ILP32_OFF32
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#define _POSIX_V7_ILP32_OFFBIG __ILP32_OFFBIG
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#define _POSIX_V7_LP64_OFF64 __LP64_OFF64
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#define _POSIX_V7_LPBIG_OFFBIG __LPBIG_OFFBIG
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/* POSIX2 */
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#define _POSIX2_C_BIND (200809L)
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#define _POSIX2_C_DEV (-1)
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#define _POSIX2_CHAR_TERM (1)
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#define _POSIX2_FORT_DEV (-1)
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#define _POSIX2_FORT_RUN (-1)
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#define _POSIX2_LOCALEDEF (-1)
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#define _POSIX2_PBS (-1)
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#define _POSIX2_PBS_ACCOUNTING (-1)
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#define _POSIX2_PBS_CHECKPOINT (-1)
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#define _POSIX2_PBS_LOCATE (-1)
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#define _POSIX2_PBS_MESSAGE (-1)
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#define _POSIX2_PBS_TRACK (-1)
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#define _POSIX2_SW_DEV (-1)
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#define _POSIX2_UPE (-1)
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/* XSI */
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#define _XOPEN_CRYPT (-1)
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#define _XOPEN_ENH_I18N (-1)
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#define _XOPEN_LEGACY (-1)
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#define _XOPEN_REALTIME (-1)
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#define _XOPEN_REALTIME_THREADS (-1)
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#define _XOPEN_SHM (-1)
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#define _XOPEN_STREAMS (-1)
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#define _XOPEN_UNIX (-1)
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#define _XOPEN_UUCP (-1)
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/* pathconf() constants */
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/* BeOS supported values, do not touch */
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#define _PC_CHOWN_RESTRICTED 1
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#define _PC_MAX_CANON 2
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#define _PC_MAX_INPUT 3
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#define _PC_NAME_MAX 4
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#define _PC_NO_TRUNC 5
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#define _PC_PATH_MAX 6
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#define _PC_PIPE_BUF 7
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#define _PC_VDISABLE 8
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#define _PC_LINK_MAX 25
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/* new values */
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#define _PC_SYNC_IO 26
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#define _PC_ASYNC_IO 27
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#define _PC_PRIO_IO 28
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#define _PC_SOCK_MAXBUF 29
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#define _PC_FILESIZEBITS 30
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#define _PC_REC_INCR_XFER_SIZE 31
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#define _PC_REC_MAX_XFER_SIZE 32
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#define _PC_REC_MIN_XFER_SIZE 33
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#define _PC_REC_XFER_ALIGN 34
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#define _PC_ALLOC_SIZE_MIN 35
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#define _PC_SYMLINK_MAX 36
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#define _PC_2_SYMLINKS 37
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#define _PC_XATTR_EXISTS 38
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#define _PC_XATTR_ENABLED 39
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/* sysconf() constants */
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/* BeOS supported values, do not touch */
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#define _SC_ARG_MAX 15
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#define _SC_CHILD_MAX 16
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#define _SC_CLK_TCK 17
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#define _SC_JOB_CONTROL 18
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#define _SC_NGROUPS_MAX 19
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#define _SC_OPEN_MAX 20
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#define _SC_SAVED_IDS 21
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#define _SC_STREAM_MAX 22
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#define _SC_TZNAME_MAX 23
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#define _SC_VERSION 24
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/* new values */
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#define _SC_GETGR_R_SIZE_MAX 25
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#define _SC_GETPW_R_SIZE_MAX 26
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#define _SC_PAGE_SIZE 27
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#define _SC_PAGESIZE _SC_PAGE_SIZE
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#define _SC_SEM_NSEMS_MAX 28
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#define _SC_SEM_VALUE_MAX 29
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#define _SC_SEMAPHORES 30
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#define _SC_THREADS 31
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/* TODO: check */
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#define _SC_IOV_MAX 32
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#define _SC_UIO_MAXIOV _SC_IOV_MAX
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#define _SC_NPROCESSORS_CONF 34
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#define _SC_NPROCESSORS_ONLN 35
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#define _SC_ATEXIT_MAX 37
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#define _SC_PASS_MAX 39
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#define _SC_PHYS_PAGES 40
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#define _SC_AVPHYS_PAGES 41
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#define _SC_PIPE 42
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#define _SC_SELECT 43
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#define _SC_POLL 44
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#define _SC_MAPPED_FILES 45
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#define _SC_THREAD_PROCESS_SHARED 46
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#define _SC_THREAD_STACK_MIN 47
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#define _SC_THREAD_ATTR_STACKADDR 48
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#define _SC_THREAD_ATTR_STACKSIZE 49
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#define _SC_THREAD_PRIORITY_SCHEDULING 50
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#define _SC_REALTIME_SIGNALS 51
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#define _SC_MEMORY_PROTECTION 52
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#define _SC_SIGQUEUE_MAX 53
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#define _SC_RTSIG_MAX 54
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#define _SC_MONOTONIC_CLOCK 55
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#define _SC_DELAYTIMER_MAX 56
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#define _SC_TIMER_MAX 57
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#define _SC_TIMERS 58
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#define _SC_CPUTIME 59
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#define _SC_THREAD_CPUTIME 60
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#define _SC_HOST_NAME_MAX 61
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#define _SC_REGEXP 62
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#define _SC_SYMLOOP_MAX 63
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#define _SC_SHELL 64
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#define _SC_TTY_NAME_MAX 65
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#define _SC_ADVISORY_INFO 66
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#define _SC_BARRIERS 67
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#define _SC_CLOCK_SELECTION 68
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#define _SC_FSYNC 69
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#define _SC_IPV6 70
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#define _SC_MEMLOCK 71
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#define _SC_MEMLOCK_RANGE 72
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#define _SC_MESSAGE_PASSING 73
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#define _SC_PRIORITIZED_IO 74
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#define _SC_PRIORITY_SCHEDULING 75
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#define _SC_READER_WRITER_LOCKS 76
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#define _SC_SHARED_MEMORY_OBJECTS 77
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#define _SC_SPAWN 78
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#define _SC_SPIN_LOCKS 79
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#define _SC_SPORADIC_SERVER 80
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#define _SC_SYNCHRONIZED_IO 81
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#define _SC_THREAD_PRIO_INHERIT 82
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#define _SC_THREAD_PRIO_PROTECT 83
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#define _SC_THREAD_ROBUST_PRIO_INHERIT 84
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#define _SC_THREAD_ROBUST_PRIO_PROTECT 85
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#define _SC_THREAD_SAFE_FUNCTIONS 86
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#define _SC_THREAD_SPORADIC_SERVER 87
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#define _SC_TIMEOUTS 88
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#define _SC_TRACE 89
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#define _SC_TRACE_EVENT_FILTER 90
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#define _SC_TRACE_INHERIT 91
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#define _SC_TRACE_LOG 92
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#define _SC_TYPED_MEMORY_OBJECTS 93
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#define _SC_V6_ILP32_OFF32 94 /* OB */
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#define _SC_V6_ILP32_OFFBIG 95 /* OB */
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#define _SC_V6_LP64_OFF64 96 /* OB */
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#define _SC_V6_LPBIG_OFFBIG 97 /* OB */
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#define _SC_V7_ILP32_OFF32 98
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#define _SC_V7_ILP32_OFFBIG 99
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#define _SC_V7_LP64_OFF64 100
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#define _SC_V7_LPBIG_OFFBIG 101
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#define _SC_2_C_BIND 102
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#define _SC_2_C_DEV 103
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#define _SC_2_CHAR_TERM 104
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#define _SC_2_FORT_DEV 105
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#define _SC_2_FORT_RUN 106
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#define _SC_2_LOCALEDEF 107
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#define _SC_2_PBS 108 /* OB BE */
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#define _SC_2_PBS_ACCOUNTING 109 /* OB BE */
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#define _SC_2_PBS_CHECKPOINT 110 /* OB BE */
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#define _SC_2_PBS_LOCATE 111 /* OB BE */
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#define _SC_2_PBS_MESSAGE 112 /* OB BE */
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#define _SC_2_PBS_TRACK 113 /* OB BE */
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#define _SC_2_SW_DEV 114
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#define _SC_2_UPE 115
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#define _SC_2_VERSION 116
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#define _SC_XOPEN_CRYPT 117
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#define _SC_XOPEN_ENH_I18N 118
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#define _SC_XOPEN_REALTIME 119
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#define _SC_XOPEN_REALTIME_THREADS 120
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#define _SC_XOPEN_SHM 121
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#define _SC_XOPEN_STREAMS 122
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#define _SC_XOPEN_UNIX 123
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#define _SC_XOPEN_UUCP 124
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#define _SC_XOPEN_VERSION 125
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#if _POSIX_ASYNCHRONOUS_IO >= 0
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#define _SC_AIO_LISTIO_MAX 126
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#define _SC_AIO_MAX 127
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#define _SC_AIO_PRIO_DELTA_MAX 128
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#endif
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#define _SC_BC_BASE_MAX 129
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#define _SC_BC_DIM_MAX 130
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#define _SC_BC_SCALE_MAX 131
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#define _SC_BC_STRING_MAX 132
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#define _SC_COLL_WEIGHTS_MAX 133
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#define _SC_EXPR_NEST_MAX 134
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#define _SC_LINE_MAX 135
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#define _SC_LOGIN_NAME_MAX 136
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#define _SC_MQ_OPEN_MAX 137
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#define _SC_MQ_PRIO_MAX 138
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#define _SC_THREAD_DESTRUCTOR_ITERATIONS 139
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#define _SC_THREAD_KEYS_MAX 140
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#define _SC_THREAD_THREADS_MAX 141
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#define _SC_RE_DUP_MAX 142
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/* confstr() constants */
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#define _CS_PATH 1
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/* lseek() constants */
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#ifndef SEEK_SET
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# define SEEK_SET 0
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#endif
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#ifndef SEEK_CUR
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# define SEEK_CUR 1
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#endif
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#ifndef SEEK_END
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# define SEEK_END 2
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#endif
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#ifndef SEEK_DATA
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# define SEEK_DATA 3
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#endif
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#ifndef SEEK_HOLE
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# define SEEK_HOLE 4
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* file functions */
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extern int access(const char *path, int accessMode);
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extern int faccessat(int fd, const char *path, int accessMode, int flag);
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extern int chdir(const char *path);
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extern int fchdir(int fd);
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extern char *getcwd(char *buffer, size_t size);
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extern int pipe(int fildes[2]);
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extern int pipe2(int fildes[2], int flags);
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extern int dup(int fd);
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extern int dup2(int fd1, int fd2);
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extern int dup3(int fd1, int fd2, int flags);
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extern int close(int fd);
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extern int link(const char *toPath, const char *path);
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extern int linkat(int toFD, const char *toPath, int pathFD,
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const char *path, int flag);
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extern int unlink(const char *name);
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extern int unlinkat(int fd, const char *path, int flag);
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extern int rmdir(const char *path);
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extern ssize_t readlink(const char *path, char *buffer, size_t bufferSize);
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extern ssize_t readlinkat(int fd, const char *path, char *buffer,
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size_t bufferSize);
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extern int symlink(const char *toPath, const char *symlinkPath);
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extern int symlinkat(const char *toPath, int fd, const char *symlinkPath);
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extern int ftruncate(int fd, off_t newSize);
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extern int truncate(const char *path, off_t newSize);
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/* We want the 3rd and 4th arguments to ioctl to be optional, but we can't use varargs because
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* then we have no way to know if the optional arguments are present, and calling va_next is
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* undefined behavior (it may or may not work depending on the calling convention).
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*
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* In C++, we implement ioctl using default function arguments, but in C this isn't possible.
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* So, the C implementation is done as vararg macro that use preprocessor magic to call the
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* 4 argument function and fill in the omitted arguments.
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*
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* The legacy ioctl function in C with vararg arguments is still provided for ABI compatibility
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* with existing applications, but should not be used anymore by newly compiled code.
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*/
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extern int __ioctl(int fd, ulong cmd, void* argument, size_t size);
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#ifndef __cplusplus
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extern int ioctl(int fd, unsigned long op, ...);
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#define _IOCTL2(a, b) __ioctl(a, b, NULL, 0)
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#define _IOCTL3(a, b, c) __ioctl(a, b, (void*)(c), 0)
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#define _IOCTL4(a, b, c, d) __ioctl(a, b, (void*)(c), d)
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#define _IOCTL(ARG1, ARG2, ARG3, ARG4, NAME, ...) NAME
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#define ioctl(...) _IOCTL(__VA_ARGS__, _IOCTL4, _IOCTL3, _IOCTL2)(__VA_ARGS__)
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#else
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inline int
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ioctl(int fd, unsigned long op, void* argument = NULL, size_t size = 0)
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{
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return __ioctl(fd, op, argument, size);
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}
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#endif
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extern ssize_t read(int fd, void *buffer, size_t count);
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extern ssize_t read_pos(int fd, off_t pos, void *buffer, size_t count);
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extern ssize_t pread(int fd, void *buffer, size_t count, off_t pos);
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extern ssize_t write(int fd, const void *buffer, size_t count);
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extern ssize_t write_pos(int fd, off_t pos, const void *buffer,size_t count);
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extern ssize_t pwrite(int fd, const void *buffer, size_t count, off_t pos);
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extern off_t lseek(int fd, off_t offset, int whence);
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extern void sync(void);
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extern int fsync(int fd);
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extern int chown(const char *path, uid_t owner, gid_t group);
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extern int fchown(int fd, uid_t owner, gid_t group);
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extern int lchown(const char *path, uid_t owner, gid_t group);
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extern int fchownat(int fd, const char *path, uid_t owner, gid_t group,
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int flag);
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extern int getpagesize(void);
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extern int getdtablesize(void);
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extern long sysconf(int name);
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extern long fpathconf(int fd, int name);
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extern long pathconf(const char *path, int name);
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extern size_t confstr(int name, char *buf, size_t len);
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extern int lockf(int fd, int function, off_t size);
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/* process functions */
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extern pid_t fork(void);
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extern pid_t vfork(void);
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extern int execve(const char *path, char * const argv[],
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char *const environment[]);
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extern int execl(const char *path, const char *arg, ...);
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extern int execv(const char *path, char *const argv[]);
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extern int execlp(const char *file, const char *arg, ...);
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extern int execle(const char *path, const char *arg , ... /*, char **envp */);
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extern int execvp(const char *file, char *const argv[]);
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extern int execvpe(const char *file, char *const argv[],
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char *const environment[]);
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extern void _exit(int status) __attribute__ ((noreturn));
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extern pid_t tcgetpgrp(int fd);
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extern int tcsetpgrp(int fd, pid_t pgrpid);
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extern int brk(void *addr);
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extern void *sbrk(intptr_t increment);
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extern unsigned int alarm(unsigned int seconds);
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extern useconds_t ualarm(useconds_t microSeconds, useconds_t interval);
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extern unsigned int sleep(unsigned int seconds);
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extern int usleep(unsigned int microSeconds);
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extern int pause(void);
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/* process */
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extern pid_t getpid(void);
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extern pid_t getpgrp(void);
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extern pid_t getppid(void);
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extern pid_t getsid(pid_t pid);
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extern pid_t getpgid(pid_t pid);
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extern pid_t setsid(void);
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extern int setpgid(pid_t pid, pid_t pgid);
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extern pid_t setpgrp(void);
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extern int chroot(const char *path);
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extern int nice(int incr);
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/* access permissions */
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extern gid_t getegid(void);
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extern uid_t geteuid(void);
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extern gid_t getgid(void);
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extern uid_t getuid(void);
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extern int setgid(gid_t gid);
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extern int setuid(uid_t uid);
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extern int setegid(gid_t gid);
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extern int seteuid(uid_t uid);
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extern int setregid(gid_t rgid, gid_t egid);
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extern int setreuid(uid_t ruid, uid_t euid);
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extern int getgrouplist(const char* user, gid_t baseGroup,
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gid_t* groupList, int* groupCount);
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extern int getgroups(int groupCount, gid_t groupList[]);
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extern int initgroups(const char* user, gid_t baseGroup);
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extern int setgroups(int groupCount, const gid_t* groupList);
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extern char *getlogin(void);
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extern int getlogin_r(char *name, size_t nameSize);
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/* host name */
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extern int sethostname(const char *hostName, size_t nameSize);
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extern int gethostname(char *hostName, size_t nameSize);
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/* tty */
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extern int isatty(int fd);
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extern char *ttyname(int fd);
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extern int ttyname_r(int fd, char *buffer, size_t bufferSize);
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/* misc */
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extern char *crypt(const char *key, const char *salt);
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extern void encrypt(char block[64], int edflag);
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extern int getopt(int argc, char *const *argv, const char *shortOpts);
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extern void swab(const void *src, void *dest, ssize_t nbytes);
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int getentropy(void *buf, size_t buflen);
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/* getopt() related external variables */
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extern char *optarg;
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extern int optind, opterr, optopt;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _UNISTD_H_ */
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