int
dtfs_node_readdir(struct puffs_usermount *pu, void *opc,
struct dirent *dent, off_t *readoff, size_t *reslen,
const struct puffs_cred *pcr,
int *eofflag, off_t *cookies, size_t *ncookies)
{
struct puffs_node *pn = opc;
struct puffs_node *pn_nth;
struct dtfs_dirent *dfd_nth;
if (pn->pn_va.va_type != VDIR)
return ENOTDIR;
dtfs_updatetimes(pn, 1, 0, 0);
*ncookies = 0;
again:
if (*readoff == DENT_DOT || *readoff == DENT_DOTDOT) {
puffs_gendotdent(&dent, pn->pn_va.va_fileid, *readoff, reslen);
(*readoff)++;
PUFFS_STORE_DCOOKIE(cookies, ncookies, *readoff);
goto again;
}
for (;;) {
dfd_nth = dtfs_dirgetnth(pn->pn_data, DENT_ADJ(*readoff));
if (!dfd_nth) {
*eofflag = 1;
break;
}
pn_nth = dfd_nth->dfd_node;
if (!puffs_nextdent(&dent, dfd_nth->dfd_name,
pn_nth->pn_va.va_fileid,
puffs_vtype2dt(pn_nth->pn_va.va_type),
reslen))
break;
(*readoff)++;
PUFFS_STORE_DCOOKIE(cookies, ncookies, *readoff);
}
return 0;
}
/*ARGSUSED*/
int
puffs_null_node_readdir(struct puffs_usermount *pu, puffs_cookie_t opc,
struct dirent *de, off_t *off, size_t *reslen,
const struct puffs_cred *pcred, int *eofflag, off_t *cookies,
size_t *ncookies)
{
struct puffs_node *pn = opc;
struct dirent entry, *result;
DIR *dp;
off_t i;
int rv;
*ncookies = 0;
dp = opendir(PNPATH(pn));
if (dp == NULL)
return errno;
rv = 0;
i = *off;
/*
* XXX: need to do trickery here, telldir/seekdir would be nice, but
* then we'd need to keep state, which I'm too lazy to keep
*/
while (i--) {
rv = readdir_r(dp, &entry, &result);
if (rv || !result)
goto out;
}
for (;;) {
rv = readdir_r(dp, &entry, &result);
if (rv != 0)
goto out;
if (!result) {
*eofflag = 1;
goto out;
}
if (_DIRENT_SIZE(result) > *reslen)
goto out;
*de = *result;
*reslen -= _DIRENT_SIZE(result);
de = _DIRENT_NEXT(de);
(*off)++;
PUFFS_STORE_DCOOKIE(cookies, ncookies, *off);
}
out:
closedir(dp);
return 0;
}
int
sysctlfs_node_readdir(struct puffs_usermount *pu, void *opc,
struct dirent *dent, off_t *readoff, size_t *reslen,
const struct puffs_cred *pcr, int *eofflag,
off_t *cookies, size_t *ncookies)
{
struct sysctlnode sn[SFS_NODEPERDIR];
struct sysctlnode qnode;
struct puffs_node *pn_dir = opc;
struct puffs_node *pn_res;
struct puffs_pathobj po;
struct sfsnode *sfs_dir = pn_dir->pn_data, *sfs_ent;
SfsName *sname;
size_t sl, i;
enum vtype vt;
ino_t id;
*ncookies = 0;
again:
if (*readoff == DENT_DOT || *readoff == DENT_DOTDOT) {
puffs_gendotdent(&dent, sfs_dir->myid, *readoff, reslen);
(*readoff)++;
PUFFS_STORE_DCOOKIE(cookies, ncookies, *readoff);
goto again;
}
memset(&qnode, 0, sizeof(qnode));
sl = SFS_NODEPERDIR * sizeof(struct sysctlnode);
qnode.sysctl_flags = SYSCTL_VERSION;
sname = PNPATH(pn_dir);
(*sname)[PNPLEN(pn_dir)] = CTL_QUERY;
if (sysctl(*sname, PNPLEN(pn_dir) + 1, sn, &sl,
&qnode, sizeof(qnode)) == -1)
return ENOENT;
po.po_path = sname;
po.po_len = PNPLEN(pn_dir)+1;
for (i = DENT_ADJ(*readoff); i < sl / sizeof(struct sysctlnode); i++) {
if (SYSCTL_TYPE(sn[i].sysctl_flags) == CTLTYPE_NODE)
vt = VDIR;
else
vt = VREG;
/*
* check if the node exists. if so, give it the real
* inode number. otherwise just fake it.
*/
(*sname)[PNPLEN(pn_dir)] = sn[i].sysctl_num;
pn_res = puffs_pn_nodewalk(pu, puffs_path_walkcmp, &po);
if (pn_res) {
sfs_ent = pn_res->pn_data;
id = sfs_ent->myid;
} else {
id = nextid++;
}
if (!puffs_nextdent(&dent, sn[i].sysctl_name, id,
puffs_vtype2dt(vt), reslen))
return 0;
(*readoff)++;
PUFFS_STORE_DCOOKIE(cookies, ncookies, *readoff);
}
*eofflag = 1;
return 0;
}
