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505 decky 1
/*
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 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup libc
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 * @{
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 */
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/** @file
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 */
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#ifndef LIBC_UNISTD_H_
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#define LIBC_UNISTD_H_
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#include <sys/types.h>
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#include <libarch/config.h>
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#ifndef NULL
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    #define NULL  0
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#endif
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#define getpagesize()  (PAGE_SIZE)
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#ifndef SEEK_SET
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    #define SEEK_SET  0
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    #define SEEK_CUR  1
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    #define SEEK_END  2
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#endif
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extern ssize_t write(int, const void *, size_t);
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extern ssize_t read(int, void *, size_t);
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extern off_t lseek(int, off_t, int);
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extern int ftruncate(int, off_t);
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extern int close(int);
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extern int fsync(int);
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extern int unlink(const char *);
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extern char *getcwd(char *buf, size_t);
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extern int rmdir(const char *);
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extern int chdir(const char *);
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extern void _exit(int status) __attribute__ ((noreturn));
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extern int usleep(unsigned long usec);
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extern unsigned int sleep(unsigned int seconds);
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#endif
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/** @}
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 */