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