sys/netinet/ip_options.c

162 			if (optlen < IPOPT_OFFSET + sizeof(*cp)) {
166 			if ((off = cp[IPOPT_OFFSET]) < IPOPT_MINOFF) {
167 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;
266 			cp[IPOPT_OFFSET] += sizeof(struct in_addr);
278 			if (optlen < IPOPT_OFFSET + sizeof(*cp)) {
279 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;
282 			if ((off = cp[IPOPT_OFFSET]) < IPOPT_MINOFF) {
283 				code = &cp[IPOPT_OFFSET] - (u_char *)ip;
311 			cp[IPOPT_OFFSET] += sizeof(struct in_addr);
324 			if ((off = cp[IPOPT_OFFSET]) < 5) {
329 				cp[IPOPT_OFFSET + 1] += (1 << 4);
330 				if ((cp[IPOPT_OFFSET + 1] & 0xf0) == 0) {
331 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;
338 			switch (cp[IPOPT_OFFSET + 1] & 0x0f) {
346 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;
356 				cp[IPOPT_OFFSET] += sizeof(struct in_addr);
363 					code = &cp[IPOPT_OFFSET] - (u_char *)ip;
370 				cp[IPOPT_OFFSET] += sizeof(struct in_addr);
375 				code = &cp[IPOPT_OFFSET + 1] - (u_char *)ip;
380 			cp[IPOPT_OFFSET] += sizeof(uint32_t);
418 	opts->ip_nhops = (olen - IPOPT_OFFSET - 1) / sizeof(struct in_addr);
461 	opts->ip_srcrt.srcopt[IPOPT_OFFSET] = IPOPT_MINOFF;
683 			bcopy((caddr_t)&cp[IPOPT_OFFSET+1], mtod(m, caddr_t),
689 			bcopy((&cp[IPOPT_OFFSET+1] + sizeof(struct in_addr)),
690 			    &cp[IPOPT_OFFSET+1],
751 			if (optlen != IPOPT_OFFSET + sizeof(uint16_t) ||
752 			    (*((uint16_t *)&cp[IPOPT_OFFSET]) != 0))