286     struct ip *pip,  in ProxyEncodeTcpStream()  argument
295 	tc = (struct tcphdr *)ip_next(pip);  in ProxyEncodeTcpStream()
319 	if ((int)(ntohs(pip->ip_len) + strlen(buffer)) > maxpacketsize)  in ProxyEncodeTcpStream()
328 		hlen = (pip->ip_hl + tc->th_off) << 2;  in ProxyEncodeTcpStream()
329 		dlen = ntohs(pip->ip_len) - hlen;  in ProxyEncodeTcpStream()
335 		p = (char *)pip;  in ProxyEncodeTcpStream()
347 		tc = (struct tcphdr *)ip_next(pip);  in ProxyEncodeTcpStream()
349 		AddSeq(lnk, delta + slen, pip->ip_hl, pip->ip_len, tc->th_seq,  in ProxyEncodeTcpStream()
357 		accumulate = pip->ip_len;  in ProxyEncodeTcpStream()
358 		pip->ip_len = htons(ntohs(pip->ip_len) + slen);  in ProxyEncodeTcpStream()
359 		accumulate -= pip->ip_len;  in ProxyEncodeTcpStream()
361 		ADJUST_CHECKSUM(accumulate, pip->ip_sum);  in ProxyEncodeTcpStream()
371 	tc->th_sum = TcpChecksum(pip);  in ProxyEncodeTcpStream()
376 ProxyEncodeIpHeader(struct ip *pip, int maxpacketsize)  in ProxyEncodeIpHeader()  argument
384 	fprintf(stdout, " ip cksum 1 = %x\n", (u_int)IpChecksum(pip));  in ProxyEncodeIpHeader()
385 	fprintf(stdout, "tcp cksum 1 = %x\n", (u_int)TcpChecksum(pip));  in ProxyEncodeIpHeader()
391 	if (pip->ip_hl > (0x0f - OPTION_LEN_INT32))  in ProxyEncodeIpHeader()
399 		ptr = (u_char *) pip;  in ProxyEncodeIpHeader()
401 		memcpy(ptr + OPTION_LEN_BYTES, ptr, ntohs(pip->ip_len) - 20);  in ProxyEncodeIpHeader()
406 		memcpy(&option[2], (u_char *)&pip->ip_dst, 4);  in ProxyEncodeIpHeader()
408 		tc = (struct tcphdr *)ip_next(pip);  in ProxyEncodeIpHeader()
425 		sptr = (u_short *) pip;  in ProxyEncodeIpHeader()
427 		pip->ip_hl += OPTION_LEN_INT32;  in ProxyEncodeIpHeader()
430 		accumulate += pip->ip_len;  in ProxyEncodeIpHeader()
431 		pip->ip_len = htons(ntohs(pip->ip_len) + OPTION_LEN_BYTES);  in ProxyEncodeIpHeader()
432 		accumulate -= pip->ip_len;  in ProxyEncodeIpHeader()
434 		ADJUST_CHECKSUM(accumulate, pip->ip_sum);  in ProxyEncodeIpHeader()
440 	fprintf(stdout, " ip cksum 2 = %x\n", (u_int)IpChecksum(pip));  in ProxyEncodeIpHeader()
441 	fprintf(stdout, "tcp cksum 2 = %x\n", (u_int)TcpChecksum(pip));  in ProxyEncodeIpHeader()
493     struct ip *pip,  in ProxyModify()  argument
502 		ProxyEncodeIpHeader(pip, maxpacketsize);  in ProxyModify()
506 		ProxyEncodeTcpStream(lnk, pip, maxpacketsize);  in ProxyModify()