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#include <errno.h>
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#include <unistd.h>
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#include "lib.h"
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#include "sys9.h"
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ssize_t
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write(int d, const void *buf, size_t nbytes)
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{
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	int n;
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	if(d<0 || d>=OPEN_MAX || !(_fdinfo[d].flags&FD_ISOPEN)){
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		errno = EBADF;
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		return -1;
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	}
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	if(_fdinfo[d].oflags&O_APPEND)
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		_SEEK(d, 0, 2);
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	n = _WRITE(d, buf, nbytes);
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	if(n < 0)
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		_syserrno();
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	return n;
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}