3821ad514d
1. the getpgrp function can help to pass the ltp/open_posix_teststuite/killpg related testcases 2. Nuttx do not support process group, so we use getpid to implement this 3. the implementation are referred to: https://pubs.opengroup.org/onlinepubs/9699919799/functions/getpgrp.html Signed-off-by: guoshichao <guoshichao@xiaomi.com>
512 lines
18 KiB
C
512 lines
18 KiB
C
/****************************************************************************
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* include/unistd.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_UNISTD_H
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#define __INCLUDE_UNISTD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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#include <nuttx/compiler.h>
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#include <limits.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Bit values for the second argument to access */
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#define F_OK 0 /* Test existence */
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#define X_OK 1 /* Test execute permission */
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#define W_OK 2 /* Test write permission */
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#define R_OK 4 /* Test read permission */
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/* POSIX feature set macros */
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#define POSIX_VERSION
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#undef _POSIX_SAVED_IDS
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#undef _POSIX_JOB_CONTROL
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#define _POSIX_REALTIME_SIGNALS 1
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#define _POSIX_MESSAGE_PASSING 1
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#undef _POSIX_MAPPED_FILES
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#undef _POSIX_SHARED_MEMORY_OBJECTS
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#define _POSIX_PRIORITY_SCHEDULING 1
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#ifndef CONFIG_DISABLE_POSIX_TIMERS
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# define _POSIX_TIMERS 1
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#endif
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#if !defined(CONFIG_DISABLE_MQUEUE) && !defined(CONFIG_DISABLE_PTHREAD)
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# define _POSIX_TIMEOUTS 1
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#endif
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#undef _POSIX_MEMLOCK
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#undef _POSIX_MEMLOCK_RANGE
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#undef _POSIX_FSYNC
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#define _POSIX_SYNCHRONIZED_IO 1
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#ifdef CONFIG_FS_AIO
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# define _POSIX_ASYNCHRONOUS_IO 1
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#else
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# undef _POSIX_ASYNCHRONOUS_IO
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#endif
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#undef _POSIX_PRIORITIZED_IO
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#ifdef CONFIG_SCHED_SPORADIC
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# define _POSIX_SPORADIC_SERVER 1
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# define _POSIX_THREAD_SPORADIC_SERVER 1
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#else
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# define _POSIX_SPORADIC_SERVER -1
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# define _POSIX_THREAD_SPORADIC_SERVER -1
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#endif
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/* Execution time constants (not supported) */
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#undef _POSIX_CHOWN_RESTRICTED
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#undef _POSIX_NO_TRUNC
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#undef _POSIX_VDISABLE
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#define _POSIX_SYNC_IO 1
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#undef _POSIX_ASYNC_IO
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#undef _POSIX_PRIO_IO
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/* Constants used with POSIX pathconf(). pathconf() will return -1 and set
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* errno to ENOSYS for most of these.
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*/
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#define _PC_2_SYMLINKS 0x0001
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#define _PC_ALLOC_SIZE_MIN 0x0002
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#define _PC_ASYNC_IO 0x0003
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#define _PC_CHOWN_RESTRICTED 0x0004
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#define _PC_FILESIZEBITS 0x0005
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#define _PC_LINK_MAX 0x0006
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#define _PC_MAX_CANON 0x0007
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#define _PC_MAX_INPUT 0x0008
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#define _PC_NAME_MAX 0x0009
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#define _PC_NO_TRUNC 0x000a
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#define _PC_PATH_MAX 0x000b
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#define _PC_PIPE_BUF 0x000c
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#define _PC_PRIO_IO 0x000d
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#define _PC_REC_INCR_XFER_SIZE 0x000e
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#define _PC_REC_MIN_XFER_SIZE 0x000f
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#define _PC_REC_XFER_ALIGN 0x0010
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#define _PC_SYMLINK_MAX 0x0011
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#define _PC_SYNC_IO 0x0012
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#define _PC_VDISABLE 0x0013
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/* Constants used with POSIX sysconf(). sysconf() will return -1 and set
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* errno to ENOSYS for most of these.
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*/
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#define _SC_2_C_BIND 0x0001
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#define _SC_2_C_DEV 0x0002
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#define _SC_2_CHAR_TERM 0x0003
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#define _SC_2_FORT_DEV 0x0004
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#define _SC_2_FORT_RUN 0x0005
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#define _SC_2_LOCALEDEF 0x0006
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#define _SC_2_PBS 0x0007
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#define _SC_2_PBS_ACCOUNTING 0x0008
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#define _SC_2_PBS_CHECKPOINT 0x0009
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#define _SC_2_PBS_LOCATE 0x000a
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#define _SC_2_PBS_MESSAGE 0x000b
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#define _SC_2_PBS_TRACK 0x000c
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#define _SC_2_SW_DEV 0x000d
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#define _SC_2_UPE 0x000e
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#define _SC_2_VERSION 0x000f
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#define _SC_ADVISORY_INFO 0x0010
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#define _SC_AIO_LISTIO_MAX 0x0011
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#define _SC_AIO_MAX 0x0012
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#define _SC_AIO_PRIO_DELTA_MAX 0x0013
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#define _SC_ARG_MAX 0x0014
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#define _SC_ASYNCHRONOUS_IO 0x0015
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#define _SC_ATEXIT_MAX 0x0016
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#define _SC_BARRIERS 0x0017
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#define _SC_BC_BASE_MAX 0x0018
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#define _SC_BC_DIM_MAX 0x0019
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#define _SC_BC_SCALE_MAX 0x001a
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#define _SC_BC_STRING_MAX 0x001b
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#define _SC_CHILD_MAX 0x001c
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#define _SC_CLK_TCK 0x001d
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#define _SC_CLOCK_SELECTION 0x001e
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#define _SC_COLL_WEIGHTS_MAX 0x001f
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#define _SC_CPUTIME 0x0020
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#define _SC_DELAYTIMER_MAX 0x0021
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#define _SC_EXPR_NEST_MAX 0x0022
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#define _SC_FSYNC 0x0023
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#define _SC_GETGR_R_SIZE_MAX 0x0024
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#define _SC_GETPW_R_SIZE_MAX 0x0025
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#define _SC_HOST_NAME_MAX 0x0026
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#define _SC_IOV_MAX 0x0027
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#define _SC_IPV6 0x0028
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#define _SC_JOB_CONTROL 0x0029
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#define _SC_LINE_MAX 0x002a
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#define _SC_LOGIN_NAME_MAX 0x002b
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#define _SC_MAPPED_FILES 0x002c
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#define _SC_MEMLOCK 0x002d
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#define _SC_MEMLOCK_RANGE 0x002e
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#define _SC_MEMORY_PROTECTION 0x002f
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#define _SC_MESSAGE_PASSING 0x0030
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#define _SC_MONOTONIC_CLOCK 0x0031
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#define _SC_MQ_OPEN_MAX 0x0032
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#define _SC_MQ_PRIO_MAX 0x0033
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#define _SC_NGROUPS_MAX 0x0034
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#define _SC_OPEN_MAX 0x0035
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#define _SC_PAGE_SIZE 0x0036
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#define _SC_PAGESIZE _SC_PAGE_SIZE
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#define _SC_PRIORITIZED_IO 0x0037
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#define _SC_PRIORITY_SCHEDULING 0x0038
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#define _SC_RAW_SOCKETS 0x0039
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#define _SC_RE_DUP_MAX 0x003a
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#define _SC_READER_WRITER_LOCKS 0x003b
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#define _SC_REALTIME_SIGNALS 0x003c
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#define _SC_REGEXP 0x003d
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#define _SC_RTSIG_MAX 0x003e
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#define _SC_SAVED_IDS 0x003f
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#define _SC_SEM_NSEMS_MAX 0x0040
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#define _SC_SEM_VALUE_MAX 0x0041
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#define _SC_SEMAPHORES 0x0042
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#define _SC_SHARED_MEMORY_OBJECTS 0x0043
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#define _SC_SHELL 0x0044
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#define _SC_SIGQUEUE_MAX 0x0045
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#define _SC_SPAWN 0x0046
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#define _SC_SPIN_LOCKS 0x0047
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#define _SC_SPORADIC_SERVER 0x0048
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#define _SC_SS_REPL_MAX 0x0049
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#define _SC_STREAM_MAX 0x004a
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#define _SC_SYMLOOP_MAX 0x004b
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#define _SC_SYNCHRONIZED_IO 0x004c
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#define _SC_THREAD_ATTR_STACKADDR 0x004d
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#define _SC_THREAD_ATTR_STACKSIZE 0x004e
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#define _SC_THREAD_CPUTIME 0x004f
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#define _SC_THREAD_DESTRUCTOR_ITERATIONS 0x0050
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#define _SC_THREAD_KEYS_MAX 0x0051
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#define _SC_THREAD_PRIO_INHERIT 0x0052
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#define _SC_THREAD_PRIO_PROTECT 0x0053
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#define _SC_THREAD_PRIORITY_SCHEDULING 0x0054
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#define _SC_THREAD_PROCESS_SHARED 0x0055
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#define _SC_THREAD_SAFE_FUNCTIONS 0x0056
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#define _SC_THREAD_SPORADIC_SERVER 0x0057
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#define _SC_THREAD_STACK_MIN 0x0058
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#define _SC_THREAD_THREADS_MAX 0x0059
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#define _SC_THREADS 0x005a
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#define _SC_TIMEOUTS 0x005b
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#define _SC_TIMER_MAX 0x005c
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#define _SC_TIMERS 0x005d
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#define _SC_TRACE 0x005e
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#define _SC_TRACE_EVENT_FILTER 0x005f
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#define _SC_TRACE_EVENT_NAME_MAX 0x0060
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#define _SC_TRACE_INHERIT 0x0061
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#define _SC_TRACE_LOG 0x0062
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#define _SC_TRACE_NAME_MAX 0x0063
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#define _SC_TRACE_SYS_MAX 0x0064
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#define _SC_TRACE_USER_EVENT_MAX 0x0065
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#define _SC_TTY_NAME_MAX 0x0066
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#define _SC_TYPED_MEMORY_OBJECTS 0x0067
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#define _SC_TZNAME_MAX 0x0068
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#define _SC_V6_ILP32_OFF32 0x0069
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#define _SC_V6_ILP32_OFFBIG 0x006a
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#define _SC_V6_LP64_OFF64 0x006b
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#define _SC_V6_LPBIG_OFFBIG 0x006c
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#define _SC_VERSION 0x006d
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#define _SC_XBS5_ILP32_OFF32 0x006e /* (LEGACY) */
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#define _SC_XBS5_ILP32_OFFBIG 0x006f /* (LEGACY) */
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#define _SC_XBS5_LP64_OFF64 0x0070 /* (LEGACY) */
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#define _SC_XBS5_LPBIG_OFFBIG 0x0071 /* (LEGACY) */
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#define _SC_XOPEN_CRYPT 0x0072
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#define _SC_XOPEN_ENH_I18N 0x0073
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#define _SC_XOPEN_LEGACY 0x0074
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#define _SC_XOPEN_REALTIME 0x0075
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#define _SC_XOPEN_REALTIME_THREADS 0x0076
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#define _SC_XOPEN_SHM 0x0077
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#define _SC_XOPEN_STREAMS 0x0078
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#define _SC_XOPEN_UNIX 0x0079
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#define _SC_XOPEN_VERSION 0x007a
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#define _SC_PHYS_PAGES 0x007b
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#define _SC_AVPHYS_PAGES 0x007c
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#define _SC_NPROCESSORS_CONF 0x007d
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#define _SC_NPROCESSORS_ONLN 0x007e
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/* The following symbolic constants must be defined for file streams: */
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#define STDERR_FILENO 2 /* File number of stderr */
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#define STDIN_FILENO 0 /* File number of stdin */
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#define STDOUT_FILENO 1 /* File number of stdout */
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/* Helpers and legacy compatibility definitions */
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#define syncfs(f) fsync(f)
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#define fdatasync(f) fsync(f)
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#define getdtablesize(f) ((int)sysconf(_SC_OPEN_MAX))
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#define getpagesize(f) ((int)sysconf(_SC_PAGESIZE))
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/* Accessor functions associated with getopt(). */
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#define optarg (*(getoptargp()))
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#define opterr (*(getopterrp()))
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#define optind (*(getoptindp()))
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#define optopt (*(getoptoptp()))
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#if defined(CONFIG_FS_LARGEFILE)
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# define lseek64 lseek
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# define pread64 pread
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# define pwrite64 pwrite
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# define truncate64 truncate
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# define ftruncate64 ftruncate
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# define lockf64 lockf
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#endif
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/* NOTE: NuttX provides only one implementation: If
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* CONFIG_LIBC_ENVPATH is defined, then only execvp/execlp/execvpe behavior
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* is supported; otherwise, only execv/execl/execve behavior is supported.
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*/
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#ifdef CONFIG_LIBC_EXECFUNCS
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# define execvp execv
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# define execlp execl
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# define execvpe execve
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* Task Control Interfaces */
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pid_t vfork(void);
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pid_t getpid(void);
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pid_t getpgrp(void);
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pid_t gettid(void);
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pid_t getppid(void);
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void _exit(int status) noreturn_function;
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unsigned int sleep(unsigned int seconds);
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int usleep(useconds_t usec);
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int pause(void);
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int nice(int inc);
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int daemon(int nochdir, int noclose);
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/* File descriptor operations */
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int close(int fd);
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int dup(int fd);
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int dup2(int fd1, int fd2);
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int fsync(int fd);
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off_t lseek(int fd, off_t offset, int whence);
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ssize_t read(int fd, FAR void *buf, size_t nbytes);
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ssize_t write(int fd, FAR const void *buf, size_t nbytes);
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ssize_t pread(int fd, FAR void *buf, size_t nbytes, off_t offset);
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ssize_t pwrite(int fd, FAR const void *buf, size_t nbytes, off_t offset);
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int ftruncate(int fd, off_t length);
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int fchown(int fd, uid_t owner, gid_t group);
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/* Check if a file descriptor corresponds to a terminal I/O file */
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int isatty(int fd);
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FAR char *ttyname(int fd);
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int ttyname_r(int fd, FAR char *buf, size_t buflen);
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/* Memory management */
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#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_MM_PGALLOC) && \
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defined(CONFIG_ARCH_USE_MMU)
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FAR void *sbrk(intptr_t incr);
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#endif
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/* Special devices */
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#define pipe(fd) pipe2(fd, 0)
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int pipe2(int pipefd[2], int flags);
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/* Schedule an alarm */
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unsigned int alarm(unsigned int seconds);
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/* Working directory operations */
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int chdir(FAR const char *path);
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int fchdir(int fd);
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FAR char *getcwd(FAR char *buf, size_t size);
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/* File path operations */
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int access(FAR const char *path, int amode);
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int faccessat(int dirfd, FAR const char *path, int mode, int flags);
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int rmdir(FAR const char *pathname);
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int unlink(FAR const char *pathname);
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int unlinkat(int dirfd, FAR const char *pathname, int flags);
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int truncate(FAR const char *path, off_t length);
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int link(FAR const char *path1, FAR const char *path2);
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int linkat(int olddirfd, FAR const char *path1,
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int newdirfd, FAR const char *path2, int flags);
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int symlink(FAR const char *path1, FAR const char *path2);
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int symlinkat(FAR const char *path1, int dirfd,
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FAR const char *path2);
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ssize_t readlink(FAR const char *path, FAR char *buf, size_t bufsize);
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ssize_t readlinkat(int dirfd, FAR const char *path, FAR char *buf,
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size_t bufsize);
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int chown(FAR const char *path, uid_t owner, gid_t group);
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int lchown(FAR const char *path, uid_t owner, gid_t group);
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int fchownat(int dirfd, FAR const char *path, uid_t owner,
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gid_t group, int flags);
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/* Execution of programs from files */
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#ifdef CONFIG_LIBC_EXECFUNCS
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int execl(FAR const char *path, FAR const char *arg0, ...);
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int execle(FAR const char *path, FAR const char *arg0, ...);
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int execv(FAR const char *path, FAR char * const argv[]);
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int execve(FAR const char *path, FAR char *const argv[],
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FAR char *const envp[]);
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#endif
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/* Byte operations */
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void swab(FAR const void *src, FAR void *dest, ssize_t nbytes);
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/* getopt and friends */
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int getopt(int argc, FAR char * const argv[], FAR const char *optstring);
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/* Accessor functions associated with getopt(). */
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FAR char **getoptargp(void); /* Optional argument following option */
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FAR int *getopterrp(void); /* Print error message */
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FAR int *getoptindp(void); /* Index into argv */
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FAR int *getoptoptp(void); /* Unrecognized option character */
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int gethostname(FAR char *name, size_t namelen);
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int sethostname(FAR const char *name, size_t namelen);
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/* Get configurable system variables */
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long sysconf(int name);
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long fpathconf(int fildes, int name);
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long pathconf(FAR const char *path, int name);
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/* User and group identity management */
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int setuid(uid_t uid);
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uid_t getuid(void);
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int setgid(gid_t gid);
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gid_t getgid(void);
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int seteuid(uid_t uid);
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uid_t geteuid(void);
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int setegid(gid_t gid);
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gid_t getegid(void);
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int setreuid(uid_t ruid, uid_t euid);
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int setregid(gid_t rgid, gid_t egid);
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int getentropy(FAR void *buffer, size_t length);
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void sync(void);
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#if CONFIG_FORTIFY_SOURCE > 0
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fortify_function(getcwd) FAR char *getcwd(FAR char *buf,
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size_t size)
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{
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fortify_assert(size <= fortify_size(buf, 0));
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return __real_getcwd(buf, size);
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}
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fortify_function(gethostname) int gethostname(FAR char *name,
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size_t namelen)
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{
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fortify_assert(namelen <= fortify_size(name, 0));
|
|
return __real_gethostname(name, namelen);
|
|
}
|
|
|
|
fortify_function(pread) ssize_t pread(int fd, FAR void *buf,
|
|
size_t nbytes, off_t offset)
|
|
{
|
|
fortify_assert(nbytes <= fortify_size(buf, 0));
|
|
return __real_pread(fd, buf, nbytes, offset);
|
|
}
|
|
|
|
fortify_function(read) ssize_t read(int fd, FAR void *buf,
|
|
size_t nbytes)
|
|
{
|
|
fortify_assert(nbytes <= fortify_size(buf, 0));
|
|
return __real_read(fd, buf, nbytes);
|
|
}
|
|
|
|
fortify_function(readlink) ssize_t readlink(FAR const char *path,
|
|
FAR char *buf,
|
|
size_t bufsize)
|
|
{
|
|
fortify_assert(bufsize <= fortify_size(buf, 0));
|
|
return __real_readlink(path, buf, bufsize);
|
|
}
|
|
|
|
fortify_function(readlinkat) ssize_t readlinkat(int dirfd,
|
|
FAR const char *path,
|
|
FAR char *buf,
|
|
size_t bufsize)
|
|
{
|
|
fortify_assert(bufsize <= fortify_size(buf, 0));
|
|
return __real_readlinkat(dirfd, path, buf, bufsize);
|
|
}
|
|
|
|
fortify_function(ttyname_r) int ttyname_r(int fd, FAR char *buf,
|
|
size_t buflen)
|
|
{
|
|
fortify_assert(buflen <= fortify_size(buf, 0));
|
|
return __real_ttyname_r(fd, buf, buflen);
|
|
}
|
|
|
|
fortify_function(pwrite) ssize_t pwrite(int fd, FAR const void *buf,
|
|
size_t nbytes, off_t offset)
|
|
{
|
|
fortify_assert(nbytes <= fortify_size(buf, 0));
|
|
return __real_pwrite(fd, buf, nbytes, offset);
|
|
}
|
|
|
|
fortify_function(write) ssize_t write(int fd, FAR const void *buf,
|
|
size_t nbytes)
|
|
{
|
|
fortify_assert(nbytes <= fortify_size(buf, 0));
|
|
return __real_write(fd, buf, nbytes);
|
|
}
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_UNISTD_H */
|