292 lines
9.3 KiB
C
292 lines
9.3 KiB
C
/****************************************************************************
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* libs/libc/libc.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 __LIBS_LIBC_LIBC_H
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#define __LIBS_LIBC_LIBC_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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#ifndef __ASSEMBLY__
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# include <sys/types.h>
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# include <stdbool.h>
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# include <stdio.h>
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# include <stdlib.h>
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# include <limits.h>
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# include <semaphore.h>
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# include <nuttx/lib/lib.h>
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# include <nuttx/streams.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* This configuration directory is used in environment variable processing
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* when we need to reference the user's home directory. There are no user
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* directories in NuttX so, by default, this always refers to the root
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* directory.
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*/
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#ifndef CONFIG_LIBC_HOMEDIR
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# define CONFIG_LIBC_HOMEDIR "/"
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#endif
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#define LIB_BUFLEN_UNKNOWN INT_MAX
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_MEMCHR_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_MEMCHR_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_MEMCHR
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_MEMCMP_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_MEMCMP_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_MEMCMP
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_MEMCPY_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_MEMCPY_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_MEMCPY
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_MEMMOVE_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_MEMMOVE_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_MEMMOVE
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_MEMSET_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_MEMSET_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_MEMSET
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCAT_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCAT_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCAT
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCASECMP_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCASECMP_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCASECMP
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCHR_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCHR_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCHR
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCHRNUL_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCHRNUL_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCHRNUL
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCMP_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCMP_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCMP
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRCPY_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRCPY_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRCPY
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRLCAT_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRLCAT_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRLCAT
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRLEN_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRLEN_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRLEN
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRLCPY_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRLCPY_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRLCPY
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRNCASECMP_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRNCASECMP_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRNCASECMP
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRNCAT_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRNCAT_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRNCAT
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRNLEN_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRNLEN_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRNLEN
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRNCMP_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRNCMP_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRNCMP
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRNCPY_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRNCPY_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRNCPY
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#endif
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#if defined(CONFIG_BUILD_FLAT) || \
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((!defined(CONFIG_LIBC_PREVENT_STRRCHR_USER) && !defined(__KERNEL__)) || \
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(!defined(CONFIG_LIBC_PREVENT_STRRCHR_KERNEL) && defined(__KERNEL__)))
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# define LIBC_BUILD_STRRCHR
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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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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/* Defined in lib_dtoa.c */
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#ifdef CONFIG_LIBC_FLOATINGPOINT
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FAR char *__dtoa(double d, int mode, int ndigits, FAR int *decpt,
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FAR int *sign, FAR char **rve);
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#endif
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/* Defined in lib_getfullpath.c */
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int lib_getfullpath(int dirfd, FAR const char *path,
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FAR char *fullpath, size_t fulllen);
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/* Defined in lib_fopen.c */
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int lib_mode2oflags(FAR const char *mode);
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/* Defined in lib_libfwrite.c */
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ssize_t lib_fwrite(FAR const void *ptr, size_t count, FAR FILE *stream);
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ssize_t lib_fwrite_unlocked(FAR const void *ptr, size_t count,
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FAR FILE *stream);
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/* Defined in lib_libfread_unlocked.c */
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ssize_t lib_fread_unlocked(FAR void *ptr, size_t count, FAR FILE *stream);
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/* Defined in lib_libgets.c */
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FAR char *lib_dgets(FAR char *buf, size_t buflen, int fd,
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bool keepnl, bool consume);
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/* Defined in lib_libfgets.c */
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FAR char *lib_fgets(FAR char *buf, size_t buflen, FILE *stream,
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bool keepnl, bool consume);
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FAR char *lib_fgets_unlocked(FAR char *buf, size_t buflen, FILE *stream,
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bool keepnl, bool consume);
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/* Defined in lib_libfflush.c */
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ssize_t lib_fflush(FAR FILE *stream, bool bforce);
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ssize_t lib_fflush_unlocked(FAR FILE *stream, bool bforce);
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/* Defined in lib_rdflush_unlocked.c */
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int lib_rdflush_unlocked(FAR FILE *stream);
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/* Defined in lib_wrflush_unlocked.c */
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int lib_wrflush_unlocked(FAR FILE *stream);
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/* Defined in lib_libgetbase.c */
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int lib_getbase(FAR const char *nptr, FAR const char **endptr);
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/* Defined in lib_skipspace.c */
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void lib_skipspace(FAR const char **pptr);
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/* Defined in lib_isbasedigit.c */
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bool lib_isbasedigit(int ch, int base, FAR int *value);
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/* Defined in lib_checkbase.c */
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int lib_checkbase(int base, FAR const char **pptr);
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/* Defined in lib_parsehostfile.c */
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#ifdef CONFIG_NETDB_HOSTFILE
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struct hostent;
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ssize_t lib_parse_hostfile(FAR FILE *stream, FAR struct hostent *host,
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FAR char *buf, size_t buflen);
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#endif
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#ifndef CONFIG_DISABLE_ENVIRON
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int lib_restoredir(void);
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#endif
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/* Defined in lib_cxx_initialize.c */
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void lib_cxx_initialize(void);
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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 /* __ASSEMBLY__ */
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#endif /* __LIBS_LIBC_LIBC_H */
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