To modify a record in a DHCP network container.
int modify_dn(void *handp, const dn_rec_t *origp, dn_rec_t *newp);
Atomically modifies the record origp with the record newp in the DHCP network container referred to by the handle handp. The signature associated with newp is updated by the underlying public module. If an update collision occurs, the data store is not updated.
DSVC_SUCCESS, DSVC_ACCESS, DSVC_BUSY, DSVC_COLLISION, DSVC_INTERNAL, DSVC_NOENT.