harvey/sys/src/cmd/unix/u9fs/dirmodeconv.c

/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

#include <plan9.h>
#include <fcall.h>

static char *modes[] =
{
	"---",
	"--x",
	"-w-",
	"-wx",
	"r--",
	"r-x",
	"rw-",
	"rwx",
};

static void
rwx(int32_t m, char *s)
{
	strncpy(s, modes[m], 3);
}

int
dirmodeconv(va_list *arg, Fconv *f)
{
	static char buf[16];
	uint32_t m;

	m = va_arg(*arg, uint32_t);

	if(m & DMDIR)
		buf[0]='d';
	else if(m & DMAPPEND)
		buf[0]='a';
	else
		buf[0]='-';
	if(m & DMEXCL)
		buf[1]='l';
	else
		buf[1]='-';
	rwx((m>>6)&7, buf+2);
	rwx((m>>3)&7, buf+5);
	rwx((m>>0)&7, buf+8);
	buf[11] = 0;

	strconv(buf, f);
	return 0;
}