// Contributed by Alexandre Oliva // From Red Hat case 106165. typedef struct s1 { unsigned short v1; unsigned char *v2; } S1; extern void bar(const struct s1 *const hdb); extern unsigned char* foo (); unsigned int sn; S1 *hdb; S1 *pb; unsigned short len; unsigned int crashIt() { unsigned char *p; unsigned int nsn; unsigned short cnt; if (sn != 0) return 1; if ((len < 12) || ((p = (((pb->v1) >= 8) ? pb->v2 : foo() )) == 0)) return 1; nsn = ( (((*(unsigned int*)p) & 0x000000ff) << 24) | (((*(unsigned int*)p) & 0x0000ff00) << 8) | (((*(unsigned int*)p) & 0x00ff0000) >> 8) | (((*(unsigned int*)p) & 0xff000000) >> 24) ); p += 4; cnt = (unsigned short) (( (((*(unsigned int*)p) & 0x000000ff) << 24) | (((*(unsigned int*)p) & 0x0000ff00) << 8) | (((*(unsigned int*)p) & 0x00ff0000) >> 8) | (((*(unsigned int*)p) & 0xff000000) >> 24) ) & 0xffff); if ((len != 12 + (cnt * 56)) || (nsn == 0)) { bar(hdb); return 1; } return 0; }