mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
Honor feature macros in <unistd.h>.
This commit is contained in:
Jonas 'Sortie' Termansen
parent
38b15f2e9f
commit
95491e44ac
1 changed files with 249 additions and 98 deletions
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@ -18,52 +18,148 @@
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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unistd.h
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The <unistd.h> header defines miscellaneous symbolic constants and types,
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and declares miscellaneous functions.
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Standard symbolic constants and types.
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*******************************************************************************/
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/* TODO: POSIX-1.2008 compliance is only partial */
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#ifndef _UNISTD_H
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#define _UNISTD_H 1
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#ifndef INCLUDE_UNISTD_H
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#define INCLUDE_UNISTD_H
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#include <sys/cdefs.h>
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#include <sys/__/types.h>
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#include <__/stdint.h>
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#if __USE_SORTIX
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#include <stdarg.h>
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#include <stdint.h>
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#include <sortix/exit.h>
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#include <sortix/fork.h>
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__BEGIN_DECLS
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#ifndef __time_t_defined
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#define __time_t_defined
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typedef __time_t time_t;
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#endif
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__END_DECLS
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#include <sortix/timespec.h>
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#include <ioleast.h>
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#endif
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#include <sortix/seek.h>
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#include <sortix/unistd.h>
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#if __USE_SORTIX
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#include <sortix/exit.h>
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#include <sortix/fork.h>
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#include <sortix/timespec.h>
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#endif
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__BEGIN_DECLS
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/* Currently just say we support the newest POSIX. */
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/* TODO: Support the newest POSIX. */
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#define _POSIX_VERSION 200809L
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#define _POSIX2_VERSION 200809L
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/* If a POSIX revision was already decided by feature macros. */
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#if __USE_POSIX
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#define _POSIX_VERSION __USE_POSIX /* C bindings */
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#define _POSIX2_VERSION __USE_POSIX /* Shell utilities. */
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/* Currently just say we support the newest X/Open */
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/* TODO: Support the newest X/Open */
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#define _XOPEN_VERSION 700
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/* The native API is based on POSIX 2008. */
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#elif __USE_SORTIX
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#define _POSIX_VERSION 200809L /* C bindings */
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#define _POSIX2_VERSION 200809L /* Shell utilities. */
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/* TODO: _POSIX_*, _POSIX2_*, _XOPEN_* is missing here. */
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/* That's odd. This is a POSIX header, but the POSIX API is not visible. The
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best option is probably to just say we are the 1990 POSIX standard, since it
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is not protected by feature macros in this header. */
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#else
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#define _POSIX_VERSION 199009L /* C bindings */
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#define _POSIX2_VERSION 199209L /* Shell utilities. */
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#endif
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/* TODO: _POSIX_*, _POSIX2_* is missing here. */
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/* If an X/OPEN revision was already decided by feature macros.
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TODO: Sortix refuses to implement stupid parts of the POSIX; the XSI option
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is usually a great clue something is stupid. */
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#if 600 < __USE_XOPEN
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#define _XOPEN_VERSION __USE_XOPEN
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#elif 500 <= __USE_XOPEN
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#define _XOPEN_VERSION 500
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#else
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#define _XOPEN_VERSION 4
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#endif
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/* #define _POSIX_ADVISORY_INFO 200809L
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TODO: Uncomment when posix_fadvise(), posix_fallocate(), posix_madvise(),
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posix_memalign() has been added. */
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#define _POSIX_ASYNCHRONOUS_IO 200809L
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#define _POSIX_BARRIERS 200809L
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/* TODO: _POSIX_CHOWN_RESTRICTED - Decide when security policies are implemented. */
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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
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/*TODO: _POSIX_MEMLOCK - Research what this is. */
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/*TODO: _POSIX_MEMLOCK_RANGE - Research what this is. */
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#define _POSIX_MEMORY_PROTECTION 200809L
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/*TODO: _POSIX_MESSAGE_PASSING - Research what this is. */
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#define _POSIX_MONOTONIC_CLOCK 200809L
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#define _POSIX_NO_TRUNC 1
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/*TODO: _POSIX_PRIORITIZED_IO - Research what this is. */
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/*TODO: _POSIX_PRIORITY_SCHEDULING - Research what this is. */
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/*TODO: _POSIX_RAW_SOCKETS - Research what this is. */
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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 1
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TODO: Uncomment when regular expressions are implemented. */
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/* #define _POSIX_SAVED_IDS 1
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TODO: Uncomment when saved ids are implemented. I forgot if they already are. */
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/* #define _POSIX_SEMAPHORES 200809L
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TODO: Uncomment when named semaphores are implemented. */
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/*TODO: _POSIX_SHARED_MEMORY_OBJECTS - Research what this is. */
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#define _POSIX_SHELL 1
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/*TODO: _POSIX_SPAWN - Research what this is. */
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#define _POSIX_SPIN_LOCKS 200809L
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/*TODO: _POSIX_SPORADIC_SERVER - Research what this is. */
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/*TODO: _POSIX_SYNCHRONIZED_IO - Research what this is. */
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/*TODO: _POSIX_THREAD_ATTR_STACKADDR - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_ATTR_STACKSIZE - Research what this is, cooperate with libpthread. */
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#define _POSIX_THREAD_CPUTIME 200809L
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/*TODO: _POSIX_THREAD_PRIO_INHERIT - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_PRIO_PROTECT - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_PRIORITY_SCHEDULING - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_PROCESS_SHARED - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_ROBUST_PRIO_INHERIT - Research what this is, cooperate with libpthread. */
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/*TODO: _POSIX_THREAD_ROBUST_PRIO_PROTECT - Research what this is, cooperate with libpthread. */
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#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
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/*TODO: _POSIX_THREAD_SPORADIC_SERVER - Research what this is, cooperate with libpthread. */
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#define _POSIX_THREADS 200809L
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#define _POSIX_TIMEOUTS 200809L
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#define _POSIX_TIMERS 200809L
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/* TODO: _POSIX_TRACE (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_TRACE_EVENT_FILTER (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_TRACE_INHERIT (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_TRACE_LOG (Obsolescent) - Research what this is. */
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/* TODO: TYPED_MEMORY_OBJECTS - Research what this is. */
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/* TODO: _POSIX_V6_ILP32_OFF32 (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_V6_ILP32_OFFBIG (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_V6_LP64_OFF64 (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_V6_LPBIG_OFFBIG (Obsolescent) - Research what this is. */
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/* TODO: _POSIX_V7_ILP32_OFF32 - Research what this is. */
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/* TODO: _POSIX_V7_ILP32_OFFBIG - Research what this is. */
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/* TODO: _POSIX_V7_LP64_OFF64 - Research what this is. */
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/* TODO: _POSIX_V7_LPBIG_OFFBIG - Research what this is. */
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#define _POSIX2_C_BIND _POSIX2_VERSION
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#define _POSIX2_C_DEV _POSIX2_VERSION
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#define _POSIX2_CHAR_TERM 1
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/* TODO: _POSIX2_FORT_RUN - When fortran becomes supported. */
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/* #define _POSIX2_LOCALEDEF __POSIX2_THIS_VERSION
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TODO: Uncomment when locales are implemented. */
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/* TODO: _POSIX2_PBS (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_PBS_ACCOUNTING (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_PBS_CHECKPOINT (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_PBS_LOCATE (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_PBS_MESSAGE (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_PBS_TRACK (Obsolescent) - Research what this is. */
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/* TODO: _POSIX2_SW_DEV - Research what this is. (Define to _POSIX2_VERSION) */
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/* #define _POSIX2_UPE 200809L
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TODO: Uncomment when bg, ex, fc, fg, jobs, more, talk, vi are implemented. */
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/* TODO: _XOPEN_CRYPT - Research what this is. */
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#define _XOPEN_ENH_I18N 1
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#define _XOPEN_REALTIME 1
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#define _XOPEN_REALTIME 1
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/* TODO: _XOPEN_STREAMS (Obsolescent) - Probably don't want to support this. */
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/* TODO: _XOPEN_UNIX - Decide whether we actually support this (probably not),
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but also whether this header should lie. */
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/* TODO: _XOPEN_UUCP - Research what this is. */
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/* TODO: _POSIX_ASYNC_IO - Research what exactly this is. */
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/* TODO: _POSIX_PRIO_IO - Research what exactly this is. */
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/* TODO: _POSIX_SYNC_IO - Research what exactly this is. */
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/* TODO: _POSIX_TIMESTAMP_RESOLUTION - Research what exactly this is. */
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/* TODO: _POSIX2_SYMLINKS - Research what exactly this is. */
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#ifndef NULL
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#define __need_NULL
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@ -102,7 +198,11 @@ __BEGIN_DECLS
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#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 29 /* obsolescent */
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#define _CS_V6_ENV 30 /* obsolescent */
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/* TODO: F_* is missing here. */
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/* Sortix will not support POSIX advisory locks and doesn't declare:
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F_LOCK
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F_TEST
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F_TLOCK
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F_UNLOCK */
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#define _PC_2_SYMLINKS 1
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#define _PC_ALLOC_SIZE_MIN 2
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@ -256,7 +356,7 @@ __BEGIN_DECLS
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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/* TODO: _POSIX_VDISABLE is missing here. */
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#define _POSIX_VDISABLE '\0'
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#ifndef __size_t_defined
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#define __size_t_defined
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@ -294,44 +394,30 @@ typedef __pid_t pid_t;
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typedef __useconds_t useconds_t;
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#endif
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/* TODO: intptr_t is not declared because <stdint.h> doesn't allow other headers
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to define some, but not all, of the fixed width types. Additionally,
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intptr_t was only added for the sake of sbrk(), but that was removed in
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POSIX 2001. The legacy sbrk() system call left supported by the kernel
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can do with __uintptr for now, as it will be removed soon enough. */
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/* Somehow programs are required to declare environ themselves according to
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the POSIX specification. */
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#if __USE_SORTIX
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extern char** environ;
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#if defined(__is_sortix_libc)
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extern char** __environ_malloced;
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extern size_t __environ_used;
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extern size_t __environ_length;
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#endif
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/* TODO: These are not implemented in sortix libc yet. */
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#if 0
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char* crypt(const char*, const char*);
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char* ctermid(char*);
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void encrypt(char [64], int);
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int fdatasync(int);
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int fexecve(int, char* const [], char* const []);
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long fpathconf(int, int);
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int getgroups(int, gid_t []);
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pid_t getpgrp(void);
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pid_t getsid(pid_t);
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int nice(int);
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int pause(void);
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int setregid(gid_t, gid_t);
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int setreuid(uid_t, uid_t);
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pid_t setsid(void);
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void swab(const void* __restrict, void* __restrict, ssize_t);
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void sync(void);
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#endif
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int access(const char*, int);
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unsigned alarm(unsigned);
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int chdir(const char*);
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int chown(const char*, uid_t, gid_t);
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int chroot(const char*);
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int close(int);
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size_t confstr(int, char*, size_t);
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int dup2(int, int);
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int dup3(int, int, int);
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int dup(int);
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int dup2(int, int);
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void _exit(int) __attribute__ ((noreturn));
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int execl(const char*, const char*, ...);
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int execle(const char*, const char*, ...);
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@ -340,78 +426,44 @@ int execv(const char*, char* const []);
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int execve(const char*, char* const [], char* const []);
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int execvp(const char*, char* const []);
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pid_t fork(void);
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int faccessat(int, const char*, int, int);
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int fchdir(int);
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int fchdirat(int, const char*);
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int fchown(int, uid_t, gid_t);
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int fchownat(int, const char*, uid_t, gid_t, int);
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int fchroot(int);
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int fchrootat(int, const char*);
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/* TODO: long fpathconf(int, int); */
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int fsync(int);
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int ftruncate(int, off_t);
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char* getcwd(char*, size_t);
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char* get_current_dir_name(void);
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int getdomainname(char*, size_t);
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gid_t getegid(void);
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uid_t geteuid(void);
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int gethostname(char*, size_t);
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gid_t getgid(void);
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/* TODO: int getgroups(int, gid_t []); */
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char* getlogin(void);
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int getlogin_r(char*, size_t);
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size_t getpagesize(void);
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pid_t getpgid(pid_t);
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/* TODO: pid_t getpgrp(void); */
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pid_t getpid(void);
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pid_t getppid(void);
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uid_t getuid(void);
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gid_t getgid(void);
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int isatty(int);
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int lchown(const char*, uid_t, gid_t);
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int link(const char*, const char*);
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int linkat(int, const char*, int, const char*, int);
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/* lockf will not be implemented. */
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off_t lseek(int, off_t, int);
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long pathconf(const char*, int);
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/* TODO: int pause(void); */
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int pipe(int [2]);
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int pipe2(int [2], int);
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ssize_t pread(int, void*, size_t, off_t);
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ssize_t pwrite(int, const void*, size_t, off_t);
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ssize_t readlink(const char* __restrict, char* __restrict, size_t);
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ssize_t readlinkat(int, const char* __restrict, char* __restrict, size_t);
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ssize_t read(int, void*, size_t);
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int rmdir(const char*);
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void* sbrk(__intptr_t increment);
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int setegid(gid_t);
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int seteuid(uid_t);
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int setgid(gid_t);
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int setpgid(pid_t, pid_t);
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/* TODO: pid_t setsid(void); */
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int setuid(uid_t);
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unsigned sleep(unsigned);
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int symlink(const char*, const char*);
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int symlinkat(const char*, int, const char*);
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long sysconf(int);
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pid_t tcgetpgrp(int);
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int tcsetpgrp(int, pid_t);
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int truncate(const char*, off_t);
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int truncateat(int dirfd, const char*, off_t);
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char* ttyname(int);
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int ttyname_r(int, char*, size_t);
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int usleep(useconds_t useconds);
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int unlinkat(int, const char*, int);
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int unlink(const char*);
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ssize_t write(int, const void*, size_t);
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#if __USE_SORTIX
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int alarmns(const struct timespec* delay, struct timespec* odelay);
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int execvpe(const char*, char* const [], char* const []);
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int exit_thread(int, int, const struct exit_thread*);
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int memstat(size_t* memused, size_t* memtotal);
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int mkpartition(int fd, off_t start, off_t length);
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pid_t sfork(int flags);
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pid_t tfork(int flags, struct tfork* regs);
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size_t writeall(int fd, const void* buf, size_t count);
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size_t writeleast(int fd, const void* buf, size_t least, size_t max);
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#endif
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#if __USE_SORTIX || 199209L <= __USE_POSIX
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size_t confstr(int, char*, size_t);
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/* For compatibility with POSIX, declare getopt(3) here. */
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#if __USE_POSIX
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/* These declarations are repeated in <getopt.h>. */
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#ifndef __getopt_unistd_shared_declared
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#define __getopt_unistd_shared_declared
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@ -424,6 +476,105 @@ int getopt(int, char* const*, const char*);
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#endif
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#endif
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#if __USE_XOPEN
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/* TODO: char* crypt(const char*, const char*); */
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/* TODO: void encrypt(char [64], int); */
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/* gethostid will not be implemented */
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/* TODO: int nice(int); */
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/* setpgrp will not be implemented. */
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/* TODO: void swab(const void* __restrict, void* __restrict, ssize_t); */
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/* TODO: void sync(void); */
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#endif
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#if __USE_SORTIX || 420 <= __USE_XOPEN
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/* TODO: int setregid(gid_t, gid_t); (XSI option) */
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/* TODO: int setreuid(uid_t, uid_t); (XSI option) */
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#endif
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#if __USE_SORTIX || 199309L <= __USE_POSIX || 420 <= __USE_XOPEN
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int getlogin_r(char*, size_t);
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#endif
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#if __USE_SORTIX || 200112L <= __USE_POSIX || 420 <= __USE_XOPEN
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int ftruncate(int, off_t);
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ssize_t readlink(const char* __restrict, char* __restrict, size_t);
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int symlink(const char*, const char*);
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#endif
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#if __USE_SORTIX || 200809L <= __USE_POSIX || 420 <= __USE_XOPEN
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int fchdir(int);
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int fchown(int, uid_t, gid_t);
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/* TODO: pid_t getsid(void); */
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int lchown(const char*, uid_t, gid_t);
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int truncate(const char*, off_t);
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#endif
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/* TODO: This feature macro seems wrong, verify historically. */
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#if __USE_SORTIX || 199309L <= __USE_POSIX || 500 <= __USE_XOPEN
|
||||
/* TODO: fdatasync (SIO option) */
|
||||
#endif
|
||||
|
||||
/* Functions from POSIX 1995. */
|
||||
#if __USE_SORTIX || 199506L <= __USE_POSIX
|
||||
int getlogin_r(char*, size_t);
|
||||
#endif
|
||||
|
||||
#if __USE_SORTIX || 200112L <= __USE_POSIX || 500 <= __USE_XOPEN
|
||||
int gethostname(char*, size_t);
|
||||
#endif
|
||||
|
||||
#if __USE_SORTIX || 200809L <= __USE_POSIX || 500 <= __USE_XOPEN
|
||||
ssize_t pread(int, void*, size_t, off_t);
|
||||
ssize_t pwrite(int, const void*, size_t, off_t);
|
||||
#endif
|
||||
|
||||
/* Functions from POSIX 2001. */
|
||||
#if __USE_SORTIX || 200112L <= __USE_POSIX
|
||||
int setegid(gid_t);
|
||||
int seteuid(uid_t);
|
||||
#endif
|
||||
|
||||
/* Functions from POSIX 2008. */
|
||||
#if __USE_SORTIX || 200809L <= __USE_POSIX
|
||||
int faccessat(int, const char*, int, int);
|
||||
int fchownat(int, const char*, uid_t, gid_t, int);
|
||||
/* TODO: int fexecve(int, char* const [], char* const []); */
|
||||
int linkat(int, const char*, int, const char*, int);
|
||||
ssize_t readlinkat(int, const char* __restrict, char* __restrict, size_t);
|
||||
int symlinkat(const char*, int, const char*);
|
||||
int unlinkat(int, const char*, int);
|
||||
#endif
|
||||
|
||||
#if __USE_SORTIX || !(200112L <= __USE_POSIX || 600 <= __USE_XOPEN)
|
||||
size_t getpagesize(void);
|
||||
#endif
|
||||
|
||||
/* Functions copied from elsewhere. */
|
||||
#if __USE_SORTIX
|
||||
int chroot(const char*);
|
||||
int dup3(int, int, int);
|
||||
int execvpe(const char*, char* const [], char* const []);
|
||||
char* get_current_dir_name(void);
|
||||
int getdomainname(char*, size_t);
|
||||
int pipe2(int [2], int);
|
||||
void* sbrk(__intptr_t increment);
|
||||
int usleep(useconds_t useconds);
|
||||
#endif
|
||||
|
||||
/* Functions that are Sortix extensions. */
|
||||
#if __USE_SORTIX
|
||||
int alarmns(const struct timespec* delay, struct timespec* odelay);
|
||||
int exit_thread(int, int, const struct exit_thread*);
|
||||
int fchdirat(int, const char*);
|
||||
int fchroot(int);
|
||||
int fchrootat(int, const char*);
|
||||
int memstat(size_t* memused, size_t* memtotal);
|
||||
int mkpartition(int fd, off_t start, off_t length);
|
||||
pid_t sfork(int flags);
|
||||
pid_t tfork(int flags, struct tfork* regs);
|
||||
int truncateat(int dirfd, const char*, off_t);
|
||||
#endif
|
||||
|
||||
__END_DECLS
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue