print libseccomp bpf_blks

print_blks.c

static void print_instr(struct bpf_instr *instr)
{

        fprintf(stdout, "\t\t\t\top = 0x%x\n", instr->op);
        fprintf(stdout, "\t\t\t\tjt type = %d hash = 0x%lx\n", instr->jt.type,
                instr->jt.tgt.hash);
        fprintf(stdout, "\t\t\t\tjf type = %d hash = 0x%lx\n", instr->jf.type,
                instr->jf.tgt.hash);
        fprintf(stdout, "\t\t\t\tk type = %d hash = 0x%lx\n", instr->k.type,
                instr->k.tgt.hash);
}

static void print_blk(struct bpf_blk *b_cur)
{
        int blk_cnt = 0; 

        fprintf(stdout, "\t\t--------bpf_blk %p--------\n", b_cur);
        fprintf(stdout, "\t\t\tblk_cnt = %d blk_alloc = %d hash = 0x%lx\n",
                b_cur->blk_cnt, b_cur->blk_alloc,
                b_cur->hash);

        for (blk_cnt = 0; blk_cnt < b_cur->blk_cnt; blk_cnt++) {
                fprintf(stdout, "\t\t\t--------instr %d--------\n",
                        blk_cnt);
                print_instr(&b_cur->blks[blk_cnt]);
        }    

        fprintf(stdout, "\t\t\tlvl_prv = %p lvl_nxt = %p\n",
                b_cur->lvl_prv, b_cur->lvl_nxt);
        fprintf(stdout, "\t\t\tprev = %p next = %p\n",
                b_cur->prev, b_cur->next);
}

static void print_blks(struct bpf_blk *b_head)
{
        struct bpf_blk *b_cur = b_head;

        fprintf(stdout, "--------b_head = %p--------\n", b_head);
     
        fprintf(stdout, "\t--------next chain--------\n");
        b_cur = b_head;
        while (b_cur != NULL) {
                print_blk(b_cur);
                b_cur = b_cur->next;
        }

        fprintf(stdout, "\t--------prev chain--------\n");
        b_cur = b_head;
        while (b_cur != NULL) {
                print_blk(b_cur);
                b_cur = b_cur->prev;
        }

        fprintf(stdout, "\t--------lvl prv chain--------\n");
        b_cur = b_head;
        while (b_cur != NULL) {
                print_blk(b_cur);
                b_cur = b_cur->lvl_prv;
        }

        fprintf(stdout, "\t--------lvl nxt chain--------\n");
        b_cur = b_head;
        while (b_cur != NULL) {
                print_blk(b_cur);
                b_cur = b_cur->lvl_nxt;
        }
}