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 int
  6 fb941e08 2005-09-13 devnull statchecku(uchar *buf, uint nbuf, int dotu)
  7 d3df3087 2003-12-06 devnull {
  8 d3df3087 2003-12-06 devnull 	uchar *ebuf;
  9 fb941e08 2005-09-13 devnull 	int i, nstr;
 10 d3df3087 2003-12-06 devnull 
 11 d3df3087 2003-12-06 devnull 	ebuf = buf + nbuf;
 12 d3df3087 2003-12-06 devnull 
 13 d3df3087 2003-12-06 devnull 	if(nbuf < STATFIXLEN || nbuf != BIT16SZ + GBIT16(buf))
 14 d3df3087 2003-12-06 devnull 		return -1;
 15 d3df3087 2003-12-06 devnull 
 16 d3df3087 2003-12-06 devnull 	buf += STATFIXLEN - 4 * BIT16SZ;
 17 d3df3087 2003-12-06 devnull 
 18 fb941e08 2005-09-13 devnull 	nstr = 4;
 19 fb941e08 2005-09-13 devnull 	if(dotu)
 20 fb941e08 2005-09-13 devnull 		nstr = 5;
 21 fb941e08 2005-09-13 devnull 	for(i = 0; i < nstr; i++){
 22 d3df3087 2003-12-06 devnull 		if(buf + BIT16SZ > ebuf)
 23 d3df3087 2003-12-06 devnull 			return -1;
 24 d3df3087 2003-12-06 devnull 		buf += BIT16SZ + GBIT16(buf);
 25 d3df3087 2003-12-06 devnull 	}
 26 d3df3087 2003-12-06 devnull 
 27 fb941e08 2005-09-13 devnull 	if(dotu)
 28 fb941e08 2005-09-13 devnull 		buf += 3*BIT32SZ;
 29 fb941e08 2005-09-13 devnull 
 30 d3df3087 2003-12-06 devnull 	if(buf != ebuf)
 31 d3df3087 2003-12-06 devnull 		return -1;
 32 d3df3087 2003-12-06 devnull 
 33 d3df3087 2003-12-06 devnull 	return 0;
 34 d3df3087 2003-12-06 devnull }
 35 d3df3087 2003-12-06 devnull 
 36 3ce03fac 2005-09-13 devnull int
 37 3ce03fac 2005-09-13 devnull statcheck(uchar *buf, uint nbuf)
 38 3ce03fac 2005-09-13 devnull {
 39 3ce03fac 2005-09-13 devnull 	return statchecku(buf, nbuf, 0);
 40 3ce03fac 2005-09-13 devnull }
 41 3ce03fac 2005-09-13 devnull 
 42 d3df3087 2003-12-06 devnull static char nullstring[] = "";
 43 d3df3087 2003-12-06 devnull 
 44 d3df3087 2003-12-06 devnull uint
 45 fb941e08 2005-09-13 devnull convM2Du(uchar *buf, uint nbuf, Dir *d, char *strs, int dotu)
 46 d3df3087 2003-12-06 devnull {
 47 d3df3087 2003-12-06 devnull 	uchar *p, *ebuf;
 48 fb941e08 2005-09-13 devnull 	char *sv[5];
 49 fb941e08 2005-09-13 devnull 	int i, ns, nstr;
 50 d3df3087 2003-12-06 devnull 
 51 d3df3087 2003-12-06 devnull 	if(nbuf < STATFIXLEN)
 52 d3df3087 2003-12-06 devnull 		return 0; 
 53 d3df3087 2003-12-06 devnull 
 54 d3df3087 2003-12-06 devnull 	p = buf;
 55 d3df3087 2003-12-06 devnull 	ebuf = buf + nbuf;
 56 d3df3087 2003-12-06 devnull 
 57 d3df3087 2003-12-06 devnull 	p += BIT16SZ;	/* ignore size */
 58 d3df3087 2003-12-06 devnull 	d->type = GBIT16(p);
 59 d3df3087 2003-12-06 devnull 	p += BIT16SZ;
 60 d3df3087 2003-12-06 devnull 	d->dev = GBIT32(p);
 61 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 62 d3df3087 2003-12-06 devnull 	d->qid.type = GBIT8(p);
 63 d3df3087 2003-12-06 devnull 	p += BIT8SZ;
 64 d3df3087 2003-12-06 devnull 	d->qid.vers = GBIT32(p);
 65 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 66 d3df3087 2003-12-06 devnull 	d->qid.path = GBIT64(p);
 67 d3df3087 2003-12-06 devnull 	p += BIT64SZ;
 68 d3df3087 2003-12-06 devnull 	d->mode = GBIT32(p);
 69 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 70 d3df3087 2003-12-06 devnull 	d->atime = GBIT32(p);
 71 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 72 d3df3087 2003-12-06 devnull 	d->mtime = GBIT32(p);
 73 d3df3087 2003-12-06 devnull 	p += BIT32SZ;
 74 d3df3087 2003-12-06 devnull 	d->length = GBIT64(p);
 75 d3df3087 2003-12-06 devnull 	p += BIT64SZ;
 76 d3df3087 2003-12-06 devnull 
 77 fb941e08 2005-09-13 devnull 	nstr = 4;
 78 fb941e08 2005-09-13 devnull 	if(dotu)
 79 fb941e08 2005-09-13 devnull 		nstr = 5;
 80 fb941e08 2005-09-13 devnull 	for(i = 0; i < nstr; i++){
 81 d3df3087 2003-12-06 devnull 		if(p + BIT16SZ > ebuf)
 82 d3df3087 2003-12-06 devnull 			return 0;
 83 d3df3087 2003-12-06 devnull 		ns = GBIT16(p);
 84 d3df3087 2003-12-06 devnull 		p += BIT16SZ;
 85 d3df3087 2003-12-06 devnull 		if(p + ns > ebuf)
 86 d3df3087 2003-12-06 devnull 			return 0;
 87 d3df3087 2003-12-06 devnull 		if(strs){
 88 d3df3087 2003-12-06 devnull 			sv[i] = strs;
 89 d3df3087 2003-12-06 devnull 			memmove(strs, p, ns);
 90 d3df3087 2003-12-06 devnull 			strs += ns;
 91 d3df3087 2003-12-06 devnull 			*strs++ = '\0';
 92 d3df3087 2003-12-06 devnull 		}
 93 d3df3087 2003-12-06 devnull 		p += ns;
 94 d3df3087 2003-12-06 devnull 	}
 95 d3df3087 2003-12-06 devnull 
 96 fb941e08 2005-09-13 devnull 	if(dotu){
 97 fb941e08 2005-09-13 devnull 		if(p + BIT32SZ*3 > ebuf)
 98 fb941e08 2005-09-13 devnull 			return 0;
 99 fb941e08 2005-09-13 devnull 		d->uidnum = GBIT32(p);
100 fb941e08 2005-09-13 devnull 		p += BIT32SZ;
101 fb941e08 2005-09-13 devnull 		d->gidnum = GBIT32(p);
102 fb941e08 2005-09-13 devnull 		p += BIT32SZ;
103 fb941e08 2005-09-13 devnull 		d->muidnum = GBIT32(p);
104 fb941e08 2005-09-13 devnull 		p += BIT32SZ;
105 fb941e08 2005-09-13 devnull 	}
106 fb941e08 2005-09-13 devnull 	
107 d3df3087 2003-12-06 devnull 	if(strs){
108 d3df3087 2003-12-06 devnull 		d->name = sv[0];
109 d3df3087 2003-12-06 devnull 		d->uid = sv[1];
110 d3df3087 2003-12-06 devnull 		d->gid = sv[2];
111 d3df3087 2003-12-06 devnull 		d->muid = sv[3];
112 fb941e08 2005-09-13 devnull 		d->ext = nullstring;
113 fb941e08 2005-09-13 devnull 		if(dotu)
114 fb941e08 2005-09-13 devnull 			d->ext = sv[4];
115 d3df3087 2003-12-06 devnull 	}else{
116 d3df3087 2003-12-06 devnull 		d->name = nullstring;
117 d3df3087 2003-12-06 devnull 		d->uid = nullstring;
118 d3df3087 2003-12-06 devnull 		d->gid = nullstring;
119 d3df3087 2003-12-06 devnull 		d->muid = nullstring;
120 fb941e08 2005-09-13 devnull 		d->ext = nullstring;
121 d3df3087 2003-12-06 devnull 	}
122 d3df3087 2003-12-06 devnull 	
123 d3df3087 2003-12-06 devnull 	return p - buf;
124 d3df3087 2003-12-06 devnull }
125 fb941e08 2005-09-13 devnull 
126 fb941e08 2005-09-13 devnull uint
127 fb941e08 2005-09-13 devnull convM2D(uchar *buf, uint nbuf, Dir *d, char *strs)
128 fb941e08 2005-09-13 devnull {
129 fb941e08 2005-09-13 devnull 	return convM2Du(buf, nbuf, d, strs, 0);
130 fb941e08 2005-09-13 devnull }