static int check_is_root(const char *object)
{
int ret;
u8 fsid[BTRFS_FSID_SIZE];
u8 fsid2[BTRFS_FSID_SIZE];
char *tmp = NULL;
char *rp;
rp = realpath(object, NULL);
if (!rp) {
ret = -errno;
goto out;
}
if (!strcmp(rp, "/")) {
ret = 0;
goto out;
}
tmp = malloc(strlen(object) + 5);
if (!tmp) {
ret = -ENOMEM;
goto out;
}
strcpy(tmp, object);
if (tmp[strlen(tmp) - 1] != '/')
strcat(tmp, "/");
strcat(tmp, "..");
ret = get_fsid(object, fsid, 0);
if (ret < 0) {
errno = -ret;
error("get_fsid for %s failed: %m", object);
goto out;
}
ret = get_fsid(tmp, fsid2, 1);
if (ret == -ENOTTY) {
ret = 0;
goto out;
} else if (ret == -ENOTDIR) {
ret = 1;
goto out;
} else if (ret < 0) {
errno = -ret;
error("get_fsid for %s failed: %m", tmp);
goto out;
}
if (memcmp(fsid, fsid2, BTRFS_FSID_SIZE)) {
ret = 0;
goto out;
}
ret = 1;
out:
free(tmp);
free(rp);
return ret;
}
static int check_is_root(const char *object)
{
int ret;
u8 fsid[BTRFS_FSID_SIZE];
u8 fsid2[BTRFS_FSID_SIZE];
char *tmp;
tmp = malloc(strlen(object) + 5);
if (!tmp) {
ret = -ENOMEM;
goto out;
}
strcpy(tmp, object);
if (tmp[strlen(tmp) - 1] != '/')
strcat(tmp, "/");
strcat(tmp, "..");
ret = get_fsid(object, fsid, 0);
if (ret < 0) {
fprintf(stderr, "ERROR: get_fsid for %s failed. %s\n", object,
strerror(-ret));
goto out;
}
ret = get_fsid(tmp, fsid2, 1);
if (ret == -ENOTTY) {
ret = 0;
goto out;
} else if (ret == -ENOTDIR) {
ret = 1;
goto out;
} else if (ret < 0) {
fprintf(stderr, "ERROR: get_fsid for %s failed. %s\n", tmp,
strerror(-ret));
goto out;
}
if (memcmp(fsid, fsid2, BTRFS_FSID_SIZE)) {
ret = 0;
goto out;
}
ret = 1;
out:
free(tmp);
return ret;
}
static int check_btrfs_object(const char *object)
{
int ret;
u8 fsid[BTRFS_FSID_SIZE];
ret = get_fsid(object, fsid, 0);
if (ret < 0)
ret = 0;
else
ret = 1;
return ret;
}
static int zfsfuse_share(
sa_handle_t libzfs_sharehdl,
sa_group_t group, sa_share_t share, char *mountpoint,
char *prot, zprop_source_t sourcetype,
char *shareopts, char *sourcestr, char *zfs_name) {
if (!strcmp(prot,"nfs")) {
char buff[2048];
int fsid = get_fsid(mountpoint);
if (strcmp(shareopts,"on")) {
/* handle shareopts
* the new syntax should be
* host1:options host2:options ... */
char *s = shareopts-1;
int ret = SA_OK;
while (s = strchr(s+1,':')) {
*s = 0;
char *hostname = shareopts;
char opts[1024];
char *e = strchr(s+1,' ');
if (e) *e = 0;
strcpy(opts,s+1);
if (*opts == 0)
strcpy(opts,"ro");
if (!strstr(opts,"fsid="))
sprintf(&opts[strlen(opts)],",fsid=%d",fsid);
if (!strstr(opts,"subtree_check"))
strcat(opts,",no_subtree_check");
sprintf(buff,"exportfs -o %s '%s:%s'",opts,hostname,mountpoint);
if (system(buff) != 0) {
printf("%s returned an error\n",buff);
ret = SA_CONFIG_ERR;
}
if (e) {
do {
e++;
} while (*e == ' ');
s = shareopts = e;
} else
break;
}
return ret;
}
sprintf(buff,"exportfs -o fsid=%d,no_subtree_check '*:%s'",fsid,mountpoint);
int ret = system(buff);
if (ret == 0) return SA_OK;
printf("%s -> %d\n",buff,ret);
return SA_CONFIG_ERR;
}
printf("protocol %s not supported yet\n",prot);
return SA_CONFIG_ERR;
}