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#include "lib.h"
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#include <errno.h>
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#include <stdlib.h>
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#include "sys9.h"
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#include "dir.h"
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static int
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seterrno(void)
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{
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	_syserrno();
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	return -1;
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}
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int
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chmod(const char *path, mode_t mode)
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{
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	Dir d, *dir;
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	dir = _dirstat(path);
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	if(dir == nil)
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		return seterrno();
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	_nulldir(&d);
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	d.mode = (dir->mode & ~0777) | (mode & 0777);
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	free(dir);
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	if(_dirwstat(path, &d) < 0)
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		return seterrno();
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	return 0;
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}
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int
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fchmod(int fd, mode_t mode)
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{
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	Dir d, *dir;
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	dir = _dirfstat(fd);
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	if(dir == nil)
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		return seterrno();
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	_nulldir(&d);
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	d.mode = (dir->mode & ~0777) | (mode & 0777);
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	free(dir);
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	if(_dirfwstat(fd, &d) < 0)
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		return seterrno();
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	return 0;
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}