/*

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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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*

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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*

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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*/

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#ifndef ISC_STDIO_H

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#define ISC_STDIO_H 1

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/*! \file isc/stdio.h */

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/*%

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* These functions are wrappers around the corresponding stdio functions.

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*

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* They return a detailed error code in the form of an an isc_result_t. ANSI C

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* does not guarantee that stdio functions set errno, hence these functions

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* must use platform dependent methods (e.g., the POSIX errno) to construct the

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* error code.

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*/

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#include <stdio.h>

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#include <isc/lang.h>

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#include <isc/result.h>

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ISC_LANG_BEGINDECLS

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/*% Open */

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isc_result_t

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isc_stdio_open(const char *filename, const char *mode, FILE **fp);

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/*% Close */

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isc_result_t

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isc_stdio_close(FILE *f);

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/*% Seek */

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isc_result_t

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isc_stdio_seek(FILE *f, off_t offset, int whence);

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/*% Tell */

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isc_result_t

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isc_stdio_tell(FILE *f, off_t *offsetp);

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/*% Read */

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isc_result_t

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isc_stdio_read(void *ptr, size_t size, size_t nmemb, FILE *f,

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size_t *nret);

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/*% Write */

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isc_result_t

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isc_stdio_write(const void *ptr, size_t size, size_t nmemb, FILE *f,

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size_t *nret);

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/*% Flush */

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isc_result_t

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isc_stdio_flush(FILE *f);

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isc_result_t

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isc_stdio_sync(FILE *f);

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/*%<

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* Invoke fsync() on the file descriptor underlying an stdio stream, or an

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* equivalent system-dependent operation. Note that this function has no

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* direct counterpart in the stdio library.

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*/

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isc_result_t

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isc_stdio_fgetc(FILE *f, int *ret);

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ISC_LANG_ENDDECLS

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#endif /* ISC_STDIO_H */

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