lib/posix/options/sysconf.c

/*
 * Copyright (c) 2024, Meta
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/posix/unistd.h>

long sysconf(int x)
{
	switch (x) {
	case _SC_ADVISORY_INFO:
		return _POSIX_ADVISORY_INFO;
	case _SC_ASYNCHRONOUS_IO:
		return _POSIX_ASYNCHRONOUS_IO;
	case _SC_BARRIERS:
		return _POSIX_BARRIERS;
	case _SC_CLOCK_SELECTION:
		return _POSIX_CLOCK_SELECTION;
	case _SC_CPUTIME:
		return _POSIX_CPUTIME;
	case _SC_FSYNC:
		return _POSIX_FSYNC;
	case _SC_IPV6:
		return _POSIX_IPV6;
	case _SC_JOB_CONTROL:
		return _POSIX_JOB_CONTROL;
	case _SC_MAPPED_FILE:
		return _POSIX_MAPPED_FILES;
	case _SC_MEMLOCK:
		return _POSIX_MEMLOCK;
	case _SC_MEMLOCK_RANGE:
		return _POSIX_MEMLOCK_RANGE;
	case _SC_MEMORY_PROTECTION:
		return _POSIX_MEMORY_PROTECTION;
	case _SC_MESSAGE_PASSING:
		return _POSIX_MESSAGE_PASSING;
	case _SC_MONOTONIC_CLOCK:
		return _POSIX_MONOTONIC_CLOCK;
	case _SC_PRIORITIZED_IO:
		return _POSIX_PRIORITIZED_IO;
	case _SC_PRIORITY_SCHEDULING:
		return _POSIX_PRIORITY_SCHEDULING;
	case _SC_RAW_SOCKETS:
		return _POSIX_RAW_SOCKETS;
	case _SC_RE_DUP_MAX:
		return _POSIX_RE_DUP_MAX;
	case _SC_READER_WRITER_LOCKS:
		return _POSIX_READER_WRITER_LOCKS;
	case _SC_REALTIME_SIGNALS:
		return _POSIX_REALTIME_SIGNALS;
	case _SC_REGEXP:
		return _POSIX_REGEXP;
	case _SC_SAVED_IDS:
		return _POSIX_SAVED_IDS;
	case _SC_SEMAPHORES:
		return _POSIX_SEMAPHORES;
	case _SC_SHARED_MEMORY_OBJECTS:
		return _POSIX_SHARED_MEMORY_OBJECTS;
	case _SC_SHELL:
		return _POSIX_SHELL;
	case _SC_SPAWN:
		return _POSIX_SPAWN;
	case _SC_SPIN_LOCKS:
		return _POSIX_SPIN_LOCKS;
	case _SC_SPORADIC_SERVER:
		return _POSIX_SPORADIC_SERVER;
	case _SC_SS_REPL_MAX:
		return _POSIX_SS_REPL_MAX;
	case _SC_SYNCHRONIZED_IO:
		return _POSIX_SYNCHRONIZED_IO;
	case _SC_THREAD_ATTR_STACKADDR:
		return _POSIX_THREAD_ATTR_STACKADDR;
	case _SC_THREAD_ATTR_STACKSIZE:
		return _POSIX_THREAD_ATTR_STACKSIZE;
	case _SC_THREAD_CPUTIME:
		return _POSIX_THREAD_CPUTIME;
	case _SC_THREAD_PRIO_INHERIT:
		return _POSIX_THREAD_PRIO_INHERIT;
	case _SC_THREAD_PRIO_PROTECT:
		return _POSIX_THREAD_PRIO_PROTECT;
	case _SC_THREAD_PRIORITY_SCHEDULING:
		return _POSIX_THREAD_PRIORITY_SCHEDULING;
	case _SC_THREAD_PROCESS_SHARED:
		return _POSIX_THREAD_PROCESS_SHARED;
	case _SC_THREAD_ROBUST_PRIO_INHERIT:
		return _POSIX_THREAD_ROBUST_PRIO_INHERIT;
	case _SC_THREAD_ROBUST_PRIO_PROTECT:
		return _POSIX_THREAD_ROBUST_PRIO_PROTECT;
	case _SC_THREAD_SAFE_FUNCTIONS:
		return _POSIX_THREAD_SAFE_FUNCTIONS;
	case _SC_THREAD_SPORADIC_SERVER:
		return _POSIX_THREAD_SPORADIC_SERVER;
	case _SC_THREADS:
		return _POSIX_THREADS;
	case _SC_TIMEOUTS:
		return _POSIX_TIMEOUTS;
	case _SC_TIMERS:
		return _POSIX_TIMERS;
	case _SC_TRACE:
		return _POSIX_TRACE;
	case _SC_TRACE_EVENT_FILTER:
		return _POSIX_TRACE_EVENT_FILTER;
	case _SC_TRACE_EVENT_NAME_MAX:
		return _POSIX_TRACE_EVENT_NAME_MAX;
	case _SC_TRACE_INHERIT:
		return _POSIX_TRACE_INHERIT;
	case _SC_TRACE_LOG:
		return _POSIX_TRACE_LOG;
	case _SC_TRACE_NAME_MAX:
		return _POSIX_TRACE_NAME_MAX;
	case _SC_TRACE_SYS_MAX:
		return _POSIX_TRACE_SYS_MAX;
	case _SC_TRACE_USER_EVENT_MAX:
		return _POSIX_TRACE_USER_EVENT_MAX;
	case _SC_TYPED_MEMORY_OBJECTS:
		return _POSIX_TYPED_MEMORY_OBJECTS;
	case _SC_VERSION:
		return _POSIX_VERSION;
	case _SC_V7_ILP32_OFF32:
		return _POSIX_V7_ILP32_OFF32;
	case _SC_V7_ILP32_OFFBIG:
		return _POSIX_V7_ILP32_OFFBIG;
	case _SC_V7_LP64_OFF64:
		return _POSIX_V7_LP64_OFF64;
	case _SC_V7_LPBIG_OFFBIG:
		return _POSIX_V7_LPBIG_OFFBIG;
	case _SC_V6_ILP32_OFF32:
		return _POSIX_V6_ILP32_OFF32;
	case _SC_V6_ILP32_OFFBIG:
		return _POSIX_V6_ILP32_OFFBIG;
	case _SC_V6_LP64_OFF64:
		return _POSIX_V6_LP64_OFF64;
	case _SC_V6_LPBIG_OFFBIG:
		return _POSIX_V6_LPBIG_OFFBIG;
	case _SC_BC_BASE_MAX:
		return _POSIX2_BC_BASE_MAX;
	case _SC_BC_DIM_MAX:
		return _POSIX2_BC_DIM_MAX;
	case _SC_BC_SCALE_MAX:
		return _POSIX2_BC_SCALE_MAX;
	case _SC_BC_STRING_MAX:
		return _POSIX2_BC_STRING_MAX;
	case _SC_2_C_BIND:
		return _POSIX2_C_BIND;
	case _SC_2_C_DEV:
		return _POSIX2_C_DEV;
	case _SC_2_CHAR_TERM:
		return _POSIX2_CHAR_TERM;
	case _SC_COLL_WEIGHTS_MAX:
		return _POSIX2_COLL_WEIGHTS_MAX;
	case _SC_DELAYTIMER_MAX:
		return _POSIX2_DELAYTIMER_MAX;
	case _SC_EXPR_NEST_MAX:
		return _POSIX2_EXPR_NEST_MAX;
	case _SC_2_FORT_DEV:
		return _POSIX2_FORT_DEV;
	case _SC_2_FORT_RUN:
		return _POSIX2_FORT_RUN;
	case _SC_LINE_MAX:
		return _POSIX2_LINE_MAX;
	case _SC_2_LOCALEDEF:
		return _POSIX2_LOCALEDEF;
	case _SC_2_PBS:
		return _POSIX2_PBS;
	case _SC_2_PBS_ACCOUNTING:
		return _POSIX2_PBS_ACCOUNTING;
	case _SC_2_PBS_CHECKPOINT:
		return _POSIX2_PBS_CHECKPOINT;
	case _SC_2_PBS_LOCATE:
		return _POSIX2_PBS_LOCATE;
	case _SC_2_PBS_MESSAGE:
		return _POSIX2_PBS_MESSAGE;
	case _SC_2_PBS_TRACK:
		return _POSIX2_PBS_TRACK;
	case _SC_2_SW_DEV:
		return _POSIX2_SW_DEV;
	case _SC_2_UPE:
		return _POSIX2_UPE;
	case _SC_2_VERSION:
		return _POSIX2_VERSION;
	case _SC_XOPEN_CRYPT:
		return _XOPEN_CRYPT;
	case _SC_XOPEN_ENH_I18N:
		return _XOPEN_ENH_I18N;
	case _SC_XOPEN_REALTIME:
		return _XOPEN_REALTIME;
	case _SC_XOPEN_REALTIME_THREADS:
		return _XOPEN_REALTIME_THREADS;
	case _SC_XOPEN_SHM:
		return _XOPEN_SHM;
	case _SC_XOPEN_STREAMS:
		return _XOPEN_STREAMS;
	case _SC_XOPEN_UNIX:
		return _XOPEN_UNIX;
	case _SC_XOPEN_UUCP:
		return _XOPEN_UUCP;
	case _SC_XOPEN_VERSION:
		return _XOPEN_VERSION;
	case _SC_CLK_TCK:
		return (100L);
	case _SC_GETGR_R_SIZE_MAX:
		return (0L);
	case _SC_GETPW_R_SIZE_MAX:
		return (0L);
	case _SC_AIO_LISTIO_MAX:
		return AIO_LISTIO_MAX;
	case _SC_AIO_MAX:
		return AIO_MAX;
	case _SC_AIO_PRIO_DELTA_MAX:
		return AIO_PRIO_DELTA_MAX;
	case _SC_ARG_MAX:
		return ARG_MAX;
	case _SC_ATEXIT_MAX:
		return ATEXIT_MAX;
	case _SC_CHILD_MAX:
		return CHILD_MAX;
	case _SC_HOST_NAME_MAX:
		return _POSIX_HOST_NAME_MAX;
	case _SC_IOV_MAX:
		return IOV_MAX;
	case _SC_LOGIN_NAME_MAX:
		return LOGIN_NAME_MAX;
	case _SC_NGROUPS_MAX:
		return _POSIX_NGROUPS_MAX;
	case _SC_MQ_OPEN_MAX:
		return MQ_OPEN_MAX;
	case _SC_MQ_PRIO_MAX:
		return MQ_PRIO_MAX;
	case _SC_OPEN_MAX:
		return CONFIG_POSIX_MAX_FDS;
	case _SC_PAGE_SIZE:
		return PAGE_SIZE;
	case _SC_PAGESIZE:
		return PAGESIZE;
	case _SC_THREAD_DESTRUCTOR_ITERATIONS:
		return PTHREAD_DESTRUCTOR_ITERATIONS;
	case _SC_THREAD_KEYS_MAX:
		return PTHREAD_KEYS_MAX;
	case _SC_THREAD_STACK_MIN:
		return PAGE_SIZE;
	case _SC_THREAD_THREADS_MAX:
		return PTHREAD_THREADS_MAX;
	case _SC_RTSIG_MAX:
		return RTSIG_MAX;
	case _SC_SEM_NSEMS_MAX:
		return SEM_NSEMS_MAX;
	case _SC_SEM_VALUE_MAX:
		return SEM_VALUE_MAX;
	case _SC_SIGQUEUE_MAX:
		return SIGQUEUE_MAX;
	case _SC_STREAM_MAX:
		return STREAM_MAX;
	case _SC_SYMLOOP_MAX:
		return SYMLOOP_MAX;
	case _SC_TIMER_MAX:
		return TIMER_MAX;
	case _SC_TTY_NAME_MAX:
		return TTY_NAME_MAX;
	case _SC_TZNAME_MAX:
		return TZNAME_MAX;
	default:
		errno = EINVAL;
		return -1;
	}
}