Don't allow meshlink_join() when the storage policy is DISABLED.

It does not make sense to allow this, since we need to write host config
files during a join, otherwise MeshLink's directory would be left in an
invalid state.

diff --git a/src/meshlink.c b/src/meshlink.c
index b812d27329b2c8f0a7de0766086290fa734ccff1..91fefa0c09ff285266452c423e8349d538c24616 100644 (file)
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -3022,6 +3022,11 @@ bool meshlink_join(meshlink_handle_t *mesh, const char *invitation) {
                return false;
        }
 
+       if(mesh->storage_policy == MESHLINK_STORAGE_DISABLED) {
+               meshlink_errno = MESHLINK_EINVAL;
+               return false;
+       }
+
        join_state_t state = {
                .mesh = mesh,
                .sock = -1,

diff --git a/src/meshlink.h b/src/meshlink.h
index 0cbe84e45c26dd6ae9b44fc6843de819230ea8b6..fdab9b3836c16168aa8ebb6ba642463824aee46d 100644 (file)
--- a/src/meshlink.h
+++ b/src/meshlink.h
@@ -1106,6 +1106,7 @@ char *meshlink_invite(struct meshlink_handle *mesh, struct meshlink_submesh *sub
  *  After a successfully accepted invitation, the name of the local node may have changed.
  *
  *  This function may only be called on a mesh that has not been started yet and which is not already part of an existing mesh.
+ *  It is not valid to call this function when the storage policy set to MESHLINK_STORAGE_DISABLED.
  *
  *  This function is blocking. It can take several seconds before it returns.
  *  There is no guarantee it will perform a successful join.