Function fill_cmd

tools/ipfw/ipfw2.c:3556–3562

* A function to fill simple commands of size 1. * Existing flags are preserved. */

 * Existing flags are preserved.
 */
static void
fill_cmd(ipfw_insn *cmd, enum ipfw_opcodes opcode, int flags, uint16_t arg)
{
	cmd->opcode = opcode;
	cmd->len =  ((cmd->len | flags) & (F_NOT | F_OR)) | 1;
	cmd->arg1 = arg;
}

/*
 * Fetch and add the MAC address and type, with masks. This generates one or