Occassionally in c-lightning we need to re-combine PSBTs, e.g. when a funding transaction is being RBF'd and we need to add more inputs to an existing PSBT. Our wallet APIs return PSBTs, and we need a way to move inputs btw two psbt structs.
maybe something like
int psbt_copy_input(struct wally_psbt src_psbt, struct wally_psbt dst_psbt, size_t src_idx);
Where the src_idx is the input to copy over. They're added to the end of the dst_psbt.
Occassionally in c-lightning we need to re-combine PSBTs, e.g. when a funding transaction is being RBF'd and we need to add more inputs to an existing PSBT. Our wallet APIs return PSBTs, and we need a way to move inputs btw two psbt structs.
maybe something like
Where the
src_idxis the input to copy over. They're added to the end of thedst_psbt.