1 /*- 2 * Test 0048: Check boundary conditions (BPF_LDX+BPF_MSH+BPF_B) 3 */ 4 5 /* BPF program */ 6 static struct bpf_insn pc[] = { 7 BPF_STMT(BPF_LD+BPF_IMM, 0xdeadc0de), 8 BPF_STMT(BPF_LDX+BPF_MSH+BPF_B, 2), 9 BPF_STMT(BPF_MISC+BPF_TXA, 0), 10 BPF_STMT(BPF_RET+BPF_A, 0), 11 }; 12 13 /* Packet */ 14 static u_char pkt[] = { 15 0x01, 0x23, 16 }; 17 18 /* Packet length seen on wire */ 19 static u_int wirelen = sizeof(pkt); 20 21 /* Packet length passed on buffer */ 22 static u_int buflen = sizeof(pkt); 23 24 /* Invalid instruction */ 25 static int invalid = 0; 26 27 /* Expected return value */ 28 static u_int expect = 0; 29 30 /* Expected signal */ 31 static int expect_signal = 0; 32