lxccontainer: use snprintf()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
index eba65a44ac0c2501e86694b4455ad6836334615c..663fe547d99aec6239699b8297ab02fe7ee927a6 100644 (file)
--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -3354,7 +3354,11 @@ static struct lxc_container *do_lxcapi_clone(struct lxc_container *c, const char
        saved_unexp_conf = NULL;
        c->lxc_conf->unexpanded_len = saved_unexp_len;
 
-       sprintf(newpath, "%s/%s/rootfs", lxcpath, newname);
+       ret = snprintf(newpath, MAXPATHLEN, "%s/%s/rootfs", lxcpath, newname);
+       if (ret < 0 || ret >= MAXPATHLEN) {
+               SYSERROR("clone: failed making rootfs pathname");
+               goto out;
+       }
        if (mkdir(newpath, 0755) < 0) {
                SYSERROR("error creating %s", newpath);
                goto out;