1 46f79934 2005-01-04 devnull /* Mostly copied from Plan 9's libc. */
3 46f79934 2005-01-04 devnull #include <u.h>
4 46f79934 2005-01-04 devnull #include <libc.h>
5 46f79934 2005-01-04 devnull #include <fcall.h>
6 46f79934 2005-01-04 devnull #include <9pclient.h>
8 46f79934 2005-01-04 devnull static long
9 46f79934 2005-01-04 devnull dirpackage(uchar *buf, long ts, Dir **d)
12 46f79934 2005-01-04 devnull long ss, i, n, nn, m;
14 46f79934 2005-01-04 devnull *d = nil;
15 46f79934 2005-01-04 devnull if(ts <= 0)
16 46f79934 2005-01-04 devnull return 0;
19 46f79934 2005-01-04 devnull * first find number of all stats, check they look like stats, & size all associated strings
23 46f79934 2005-01-04 devnull for(i = 0; i < ts; i += m){
24 46f79934 2005-01-04 devnull m = BIT16SZ + GBIT16(&buf[i]);
25 46f79934 2005-01-04 devnull if(statcheck(&buf[i], m) < 0)
31 46f79934 2005-01-04 devnull if(i != ts)
32 46f79934 2005-01-04 devnull return -1;
34 46f79934 2005-01-04 devnull *d = malloc(n * sizeof(Dir) + ss);
35 46f79934 2005-01-04 devnull if(*d == nil)
36 46f79934 2005-01-04 devnull return -1;
39 46f79934 2005-01-04 devnull * then convert all buffers
41 46f79934 2005-01-04 devnull s = (char*)*d + n * sizeof(Dir);
43 46f79934 2005-01-04 devnull for(i = 0; i < ts; i += m){
44 46f79934 2005-01-04 devnull m = BIT16SZ + GBIT16((uchar*)&buf[i]);
45 46f79934 2005-01-04 devnull if(nn >= n || convM2D(&buf[i], m, *d + nn, s) != m){
46 46f79934 2005-01-04 devnull free(*d);
47 46f79934 2005-01-04 devnull *d = nil;
48 46f79934 2005-01-04 devnull return -1;
54 46f79934 2005-01-04 devnull return nn;
58 46f79934 2005-01-04 devnull fsdirread(CFid *fid, Dir **d)
60 46f79934 2005-01-04 devnull uchar *buf;
63 46f79934 2005-01-04 devnull buf = malloc(DIRMAX);
64 46f79934 2005-01-04 devnull if(buf == nil)
65 46f79934 2005-01-04 devnull return -1;
66 46f79934 2005-01-04 devnull ts = fsread(fid, buf, DIRMAX);
67 46f79934 2005-01-04 devnull if(ts >= 0)
68 46f79934 2005-01-04 devnull ts = dirpackage(buf, ts, d);
69 46f79934 2005-01-04 devnull free(buf);
70 46f79934 2005-01-04 devnull return ts;
74 46f79934 2005-01-04 devnull fsdirreadall(CFid *fid, Dir **d)
76 46f79934 2005-01-04 devnull uchar *buf, *nbuf;
77 46f79934 2005-01-04 devnull long n, ts;
79 46f79934 2005-01-04 devnull buf = nil;
82 46f79934 2005-01-04 devnull nbuf = realloc(buf, ts+DIRMAX);
83 46f79934 2005-01-04 devnull if(nbuf == nil){
84 46f79934 2005-01-04 devnull free(buf);
85 46f79934 2005-01-04 devnull return -1;
87 46f79934 2005-01-04 devnull buf = nbuf;
88 46f79934 2005-01-04 devnull n = fsread(fid, buf+ts, DIRMAX);
89 46f79934 2005-01-04 devnull if(n <= 0)
93 46f79934 2005-01-04 devnull if(ts >= 0)
94 46f79934 2005-01-04 devnull ts = dirpackage(buf, ts, d);
95 46f79934 2005-01-04 devnull free(buf);
96 46f79934 2005-01-04 devnull if(ts == 0 && n < 0)
97 46f79934 2005-01-04 devnull return -1;
98 46f79934 2005-01-04 devnull return ts;