/*ARGSUSED*/
int
puffs_null_node_getattr(struct puffs_usermount *pu, puffs_cookie_t opc,
struct vattr *va, const struct puffs_cred *pcred)
{
struct puffs_node *pn = opc;
struct stat sb;
if (lstat(PNPATH(pn), &sb) == -1)
return errno;
puffs_stat2vattr(va, &sb);
return 0;
}
static int
makenode(struct puffs_usermount *pu, struct puffs_newinfo *pni,
const struct puffs_cn *pcn, const struct vattr *va, int regular)
{
struct puffs_node *pn;
struct stat sb;
int rv;
if ((rv = processvattr(PCNPATH(pcn), va, regular)) != 0)
return rv;
pn = puffs_pn_new(pu, NULL);
if (!pn)
return ENOMEM;
puffs_setvattr(&pn->pn_va, va);
if (lstat(PCNPATH(pcn), &sb) == -1)
return errno;
puffs_stat2vattr(&pn->pn_va, &sb);
puffs_newinfo_setcookie(pni, pn);
return 0;
}
int
puffs_null_node_lookup(struct puffs_usermount *pu, puffs_cookie_t opc,
struct puffs_newinfo *pni, const struct puffs_cn *pcn)
{
struct puffs_node *pn = opc, *pn_res;
struct stat sb;
int rv;
assert(pn->pn_va.va_type == VDIR);
/*
* Note to whoever is copypasting this: you must first check
* if the node is there and only then do nodewalk. Alternatively
* you could make sure that you don't return unlinked/rmdir'd
* nodes in some other fashion
*/
rv = lstat(PCNPATH(pcn), &sb);
if (rv)
return errno;
/* XXX2: nodewalk is a bit too slow here */
pn_res = puffs_pn_nodewalk(pu, inodecmp, &sb.st_ino);
if (pn_res == NULL) {
pn_res = puffs_pn_new(pu, NULL);
if (pn_res == NULL)
return ENOMEM;
puffs_stat2vattr(&pn_res->pn_va, &sb);
}
puffs_newinfo_setcookie(pni, pn_res);
puffs_newinfo_setvtype(pni, pn_res->pn_va.va_type);
puffs_newinfo_setsize(pni, (off_t)pn_res->pn_va.va_size);
puffs_newinfo_setrdev(pni, pn_res->pn_va.va_rdev);
return 0;
}
int
main(int argc, char *argv[])
{
struct puffs_usermount *pu;
struct puffs_ops *pops;
struct puffs_pathobj *po_root;
struct puffs_node *pn_root;
struct stat sb;
int mntflags, pflags;
int ch;
int detach;
setprogname(argv[0]);
if (argc < 3)
usage();
pflags = mntflags = 0;
detach = 1;
while ((ch = getopt(argc, argv, "o:s")) != -1) {
switch (ch) {
case 'o':
getmntopts(optarg, puffsmopts, &mntflags, &pflags);
break;
case 's':
detach = 0;
break;
}
}
pflags |= PUFFS_FLAG_BUILDPATH;
argv += optind;
argc -= optind;
if (pflags & PUFFS_FLAG_OPDUMP)
detach = 0;
if (argc != 2)
usage();
if (lstat(argv[0], &sb) == -1)
err(1, "stat %s", argv[0]);
if ((sb.st_mode & S_IFDIR) == 0)
errx(1, "%s is not a directory", argv[0]);
PUFFSOP_INIT(pops);
puffs_null_setops(pops);
if ((pu = puffs_init(pops, argv[0], "pnullfs", NULL, pflags)) == NULL)
err(1, "init");
pn_root = puffs_pn_new(pu, NULL);
if (pn_root == NULL)
err(1, "puffs_pn_new");
puffs_setroot(pu, pn_root);
puffs_setfhsize(pu, 0, PUFFS_FHFLAG_PASSTHROUGH);
po_root = puffs_getrootpathobj(pu);
if (po_root == NULL)
err(1, "getrootpathobj");
po_root->po_path = argv[0];
po_root->po_len = strlen(argv[0]);
puffs_stat2vattr(&pn_root->pn_va, &sb);
if (detach)
if (puffs_daemon(pu, 1, 1) == -1)
err(1, "puffs_daemon");
if (puffs_mount(pu, argv[1], mntflags, pn_root) == -1)
err(1, "puffs_mount");
if (puffs_mainloop(pu) == -1)
err(1, "mainloop");
return 0;
}
