109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
/****************************************************************************
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* libs/libc/unistd/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 __LIBC_UNISTD_UNISTD_H
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#define __LIBC_UNISTD_UNISTD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/tls.h>
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#include <stdbool.h>
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#include <getopt.h>
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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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* Preprocessor Definitions
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****************************************************************************/
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/* Mode bit definitions */
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#define GETOPT_LONG_BIT (1 << 0) /* Long options supported */
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#define GETOPT_LONGONLY_BIT (1 << 1) /* Long-Only behavior supported */
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#define GETOPT_HAVE_LONG(m) (((m) & GETOPT_LONG_BIT) != 0)
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#define GETOPT_HAVE_LONGONLY(m) (((m) & GETOPT_LONGONLY_BIT) != 0)
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/* The mode determines which of getopt(), getopt_long(), and
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* getopt_long_only() that is being emulated by getopt_common().
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*/
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enum getopt_mode_e
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{
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GETOPT_MODE = 0,
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GETOPT_LONG_MODE = GETOPT_LONG_BIT,
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GETOPT_LONG_ONLY_MODE = (GETOPT_LONG_BIT | GETOPT_LONGONLY_BIT)
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: getoptvars
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*
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* Description:
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* Returns a pointer to to the thread-specific getopt() data.
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*
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****************************************************************************/
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FAR struct getopt_s *getoptvars(void);
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/****************************************************************************
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* Name: getopt_common
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*
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* Description:
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* getopt_common() is the common, internal implementation of getopt(),
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* getopt_long(), and getopt_long_only().
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*
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****************************************************************************/
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int getopt_common(int argc, FAR char * const argv[],
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FAR const char *optstring,
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FAR const struct option *longopts,
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FAR int *longindex,
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enum getopt_mode_e mode);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __LIBC_UNISTD_UNISTD_H */
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