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Send EDNS part

This commit is contained in:
Erik Ekman 2006-06-06 13:11:29 +00:00
parent b681e3a0d9
commit a065151c1b
1 changed files with 9 additions and 0 deletions
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9
dns.c
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@ -215,6 +215,7 @@ dns_query(int fd, int id, char *host, int type)
header->ra = 0;
header->qdcount = htons(1);
header->arcount = htons(1);
p = buf + sizeof(HEADER);
p += host2dns(host, p, strlen(host));
@ -222,6 +223,14 @@ dns_query(int fd, int id, char *host, int type)
PUTSHORT(type, p);
PUTSHORT(C_IN, p);
// EDNS0
*p++ = 0x00; //Root
PUTSHORT(0x0029, p); // OPT
PUTSHORT(0x1000, p); // Payload size: 4096
PUTSHORT(0x0000, p); // Higher bits/ edns version
PUTSHORT(0x8000, p); // Z
PUTSHORT(0x0000, p); // Data length
peerlen = sizeof(peer);
len = p - buf;