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#include "lib.h"
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#include <string.h>
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#include "sys9.h"
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#include "dir.h"
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#define	CHAR(x)		*p++ = f->x
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#define	SHORT(x)	p[0] = f->x; p[1] = f->x>>8; p += 2
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#define	LONG(x)		p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24; p += 4
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#define	VLONG(x)	p[0] = f->x; p[1] = f->x>>8; p[2] = f->x>>16; p[3] = f->x>>24;\
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			p[4] = 0; p[5] = 0; p[6] = 0; p[7] = 0; p += 8
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#define	STRING(x,n)	memcpy(p, f->x, n); p += n
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int
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convD2M(Dir *f, char *ap)
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{
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	unsigned char *p;
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	p = (unsigned char*)ap;
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	STRING(name, sizeof(f->name));
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	STRING(uid, sizeof(f->uid));
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	STRING(gid, sizeof(f->gid));
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	LONG(qid.path);
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	LONG(qid.vers);
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	LONG(mode);
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	LONG(atime);
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	LONG(mtime);
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	VLONG(length);
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	SHORT(type);
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	SHORT(dev);
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	return p - (unsigned char*)ap;
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}
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#undef	CHAR
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#undef	SHORT
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#undef	LONG
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#undef	VLONG
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#undef	STRING
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#define	CHAR(x)		f->x = *p++
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#define	SHORT(x)	f->x = (p[0] | (p[1]<<8)); p += 2
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#define	LONG(x)		f->x = (p[0] | (p[1]<<8) |\
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			(p[2]<<16) | (p[3]<<24)); p += 4
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#define	VLONG(x)	f->x = (p[0] | (p[1]<<8) |\
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			(p[2]<<16) | (p[3]<<24)); p += 8
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#define	STRING(x,n)	memcpy(f->x, p, n); p += n
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int
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convM2D(char *ap, Dir *f)
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{
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	unsigned char *p;
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	p = (unsigned char*)ap;
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	STRING(name, sizeof(f->name));
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	STRING(uid, sizeof(f->uid));
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	STRING(gid, sizeof(f->gid));
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	LONG(qid.path);
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	LONG(qid.vers);
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	LONG(mode);
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	LONG(atime);
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	LONG(mtime);
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	VLONG(length);
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	SHORT(type);
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	SHORT(dev);
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	return p - (unsigned char*)ap;
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}