Npfcall*
diod_getattr(Npfid *fid, u64 request_mask)
{
Fid *f = fid->aux;
Npfcall *ret;
Npqid qid;
struct stat sb;
if ((f->flags & DIOD_FID_FLAGS_MOUNTPT)) {
if (_statmnt (path_s (f->path), &sb) < 0) {
np_uerror (errno);
goto error_quiet;
}
} else {
if (lstat (path_s (f->path), &sb) < 0) {
np_uerror (errno);
goto error_quiet;
}
}
diod_ustat2qid (&sb, &qid);
if (!(ret = np_create_rgetattr(request_mask, &qid,
sb.st_mode,
sb.st_uid,
sb.st_gid,
sb.st_nlink,
sb.st_rdev,
sb.st_size,
sb.st_blksize,
sb.st_blocks,
sb.st_atim.tv_sec,
sb.st_atim.tv_nsec,
sb.st_mtim.tv_sec,
sb.st_mtim.tv_nsec,
sb.st_ctim.tv_sec,
sb.st_ctim.tv_nsec,
0, 0, 0, 0))) {
np_uerror (ENOMEM);
goto error;
}
return ret;
error:
errn (np_rerror (), "diod_getattr %s@%s:%s",
fid->user->uname, np_conn_get_client_id (fid->conn),
path_s (f->path));
error_quiet:
return NULL;
}
/* Twalk - walk a file path
* Called from fcall.c::np_walk () on each wname component in succession.
* On error, call np_uerror () and return 0.
*/
int
diod_walk (Npfid *fid, Npstr* wname, Npqid *wqid)
{
Npsrv *srv = fid->conn->srv;
Fid *f = fid->aux;
struct stat sb, sb2;
Path npath = NULL;
if ((f->flags & DIOD_FID_FLAGS_MOUNTPT)) {
np_uerror (ENOENT);
goto error_quiet;
}
if (!(npath = path_append (srv, f->path, wname))) {
np_uerror (ENOMEM);
goto error;
}
if (lstat (path_s (npath), &sb) < 0) {
np_uerror (errno);
goto error_quiet;
}
if (lstat (path_s (f->path), &sb2) < 0) {
np_uerror (errno);
goto error;
}
if (sb.st_dev != sb2.st_dev) {
if (_statmnt (path_s (npath), &sb) < 0)
goto error;
f->flags |= DIOD_FID_FLAGS_MOUNTPT;
}
path_decref (srv, f->path);
f->path = npath;
diod_ustat2qid (&sb, wqid);
return 1;
error:
errn (np_rerror (), "diod_walk %s@%s:%s/%.*s",
fid->user->uname, np_conn_get_client_id (fid->conn), path_s (f->path),
wname->len, wname->str);
error_quiet:
if (npath)
path_decref (srv, npath);
return 0;
}
/* Twalk - walk a file path
* Called from fcall.c::np_walk () on each wname component in succession.
* On error, call np_uerror () and return 0.
*/
int
diod_walk (Npfid *fid, Npstr* wname, Npqid *wqid)
{
Fid *f = fid->aux;
struct stat sb, sb2;
char *npath = NULL;
if (f->mountpt) {
np_uerror (ENOENT);
goto error_quiet;
}
if (!(npath = _mkpath (f->path, wname))) {
np_uerror (ENOMEM);
goto error;
}
if (lstat (npath, &sb) < 0) {
np_uerror (errno);
goto error_quiet;
}
if (lstat (f->path, &sb2) < 0) {
np_uerror (errno);
goto error;
}
if (sb.st_dev != sb2.st_dev) {
if (_statmnt (npath, &sb) < 0)
goto error;
f->mountpt = 1;
}
free (f->path);
f->path = npath;
_ustat2qid (&sb, wqid);
return 1;
error:
errn (np_rerror (), "diod_walk %s@%s:%s/%.*s",
fid->user->uname, np_conn_get_client_id (fid->conn), f->path,
wname->len, wname->str);
error_quiet:
if (npath)
free (npath);
return 0;
}
