1 d3df3087 2003-12-06 devnull #include	<u.h>
  2 d3df3087 2003-12-06 devnull #include	<libc.h>
  3 d3df3087 2003-12-06 devnull #include	<fcall.h>
  4 d3df3087 2003-12-06 devnull 
  5 d3df3087 2003-12-06 devnull uint
  6 74dd0321 2010-12-07 rsc sizeD2M(Dir *d)
  7 d3df3087 2003-12-06 devnull {
  8 fb941e08 2005-09-13 devnull 	char *sv[5];
  9 fb941e08 2005-09-13 devnull 	int i, ns, nstr, fixlen;
 10 d3df3087 2003-12-06 devnull 
 11 d3df3087 2003-12-06 devnull 	sv[0] = d->name;
 12 d3df3087 2003-12-06 devnull 	sv[1] = d->uid;
 13 d3df3087 2003-12-06 devnull 	sv[2] = d->gid;
 14 d3df3087 2003-12-06 devnull 	sv[3] = d->muid;
 15 fa325e9b 2020-01-10 cross 
 16 fb941e08 2005-09-13 devnull 	fixlen = STATFIXLEN;
 17 fb941e08 2005-09-13 devnull 	nstr = 4;
 18 fa325e9b 2020-01-10 cross 
 19 d3df3087 2003-12-06 devnull 	ns = 0;
 20 fb941e08 2005-09-13 devnull 	for(i = 0; i < nstr; i++)
 21 d3df3087 2003-12-06 devnull 		if(sv[i])
 22 d3df3087 2003-12-06 devnull 			ns += strlen(sv[i]);
 23 d3df3087 2003-12-06 devnull 
 24 fb941e08 2005-09-13 devnull 	return fixlen + ns;
 25 d3df3087 2003-12-06 devnull }
 26 d3df3087 2003-12-06 devnull 
 27 d3df3087 2003-12-06 devnull uint
 28 74dd0321 2010-12-07 rsc convD2M(Dir *d, uchar *buf, uint nbuf)
 29 d3df3087 2003-12-06 devnull {
 30 d3df3087 2003-12-06 devnull 	uchar *p, *ebuf;
 31 fb941e08 2005-09-13 devnull 	char *sv[5];
 32 adeb5ac9 2005-12-29 devnull 	int i, ns, nsv[5], ss, nstr, fixlen;
 33 d3df3087 2003-12-06 devnull 
 34 d3df3087 2003-12-06 devnull 	if(nbuf < BIT16SZ)
 35 d3df3087 2003-12-06 devnull 		return 0;
 36 d3df3087 2003-12-06 devnull 
 37 d3df3087 2003-12-06 devnull 	p = buf;
 38 d3df3087 2003-12-06 devnull 	ebuf = buf + nbuf;
 39 d3df3087 2003-12-06 devnull 
 40 d3df3087 2003-12-06 devnull 	sv[0] = d->name;
 41 d3df3087 2003-12-06 devnull 	sv[1] = d->uid;
 42 d3df3087 2003-12-06 devnull 	sv[2] = d->gid;
 43 d3df3087 2003-12-06 devnull 	sv[3] = d->muid;
 44 d3df3087 2003-12-06 devnull 
 45 fb941e08 2005-09-13 devnull 	fixlen = STATFIXLEN;
 46 fb941e08 2005-09-13 devnull 	nstr = 4;
 47 fa325e9b 2020-01-10 cross 
 48 d3df3087 2003-12-06 devnull 	ns = 0;
 49 fb941e08 2005-09-13 devnull 	for(i = 0; i < nstr; i++){
 50 d3df3087 2003-12-06 devnull 		if(sv[i])
 51 d3df3087 2003-12-06 devnull 			nsv[i] = strlen(sv[i]);
 52 d3df3087 2003-12-06 devnull 		else
 53 d3df3087 2003-12-06 devnull 			nsv[i] = 0;
 54 d3df3087 2003-12-06 devnull 		ns += nsv[i];
 55 d3df3087 2003-12-06 devnull 	}
 56 d3df3087 2003-12-06 devnull 
 57 fb941e08 2005-09-13 devnull 	ss = fixlen + ns;
 58 d3df3087 2003-12-06 devnull 
 59 d3df3087 2003-12-06 devnull 	/* set size befor erroring, so user can know how much is needed */
 60 d3df3087 2003-12-06 devnull 	/* note that length excludes count field itself */
 61 d3df3087 2003-12-06 devnull 	PBIT16(p, ss-BIT16SZ);
 62 d3df3087 2003-12-06 devnull 	p += BIT16SZ;
 63 d3df3087 2003-12-06 devnull 
 64 d3df3087 2003-12-06 devnull 	if(ss > nbuf)
 65 d3df3087 2003-12-06 devnull 		return BIT16SZ;
 66 d3df3087 2003-12-06 devnull 
 67 d3df3087 2003-12-06 devnull 	PBIT16(p, d->type);
 68 d3df3087 2003-12-06 devnull 	p += BIT16SZ;
 69 d3df3087 2003-12-06 devnull 	PBIT32(p, d->dev);
 70 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 71 d3df3087 2003-12-06 devnull 	PBIT8(p, d->qid.type);
 72 d3df3087 2003-12-06 devnull 	p += BIT8SZ;
 73 d3df3087 2003-12-06 devnull 	PBIT32(p, d->qid.vers);
 74 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 75 d3df3087 2003-12-06 devnull 	PBIT64(p, d->qid.path);
 76 d3df3087 2003-12-06 devnull 	p += BIT64SZ;
 77 d3df3087 2003-12-06 devnull 	PBIT32(p, d->mode);
 78 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 79 d3df3087 2003-12-06 devnull 	PBIT32(p, d->atime);
 80 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 81 d3df3087 2003-12-06 devnull 	PBIT32(p, d->mtime);
 82 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 83 d3df3087 2003-12-06 devnull 	PBIT64(p, d->length);
 84 d3df3087 2003-12-06 devnull 	p += BIT64SZ;
 85 d3df3087 2003-12-06 devnull 
 86 fb941e08 2005-09-13 devnull 	for(i = 0; i < nstr; i++){
 87 d3df3087 2003-12-06 devnull 		ns = nsv[i];
 88 d3df3087 2003-12-06 devnull 		if(p + ns + BIT16SZ > ebuf)
 89 d3df3087 2003-12-06 devnull 			return 0;
 90 d3df3087 2003-12-06 devnull 		PBIT16(p, ns);
 91 d3df3087 2003-12-06 devnull 		p += BIT16SZ;
 92 d3df3087 2003-12-06 devnull 		if(ns)
 93 d3df3087 2003-12-06 devnull 			memmove(p, sv[i], ns);
 94 d3df3087 2003-12-06 devnull 		p += ns;
 95 d3df3087 2003-12-06 devnull 	}
 96 fa325e9b 2020-01-10 cross 
 97 d3df3087 2003-12-06 devnull 	if(ss != p - buf)
 98 d3df3087 2003-12-06 devnull 		return 0;
 99 d3df3087 2003-12-06 devnull 
100 d3df3087 2003-12-06 devnull 	return p - buf;
101 d3df3087 2003-12-06 devnull }