6b4960155
Jo-Philipp Wich
2019-10-27
Subject
nslookup: implement support for SRV records
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networking/nslookup.c+20 -0
| @@ -283,6 +283,7 @@ static const struct { | |
| { ns_t_cname, "CNAME" }, | |
| { ns_t_mx, "MX" }, | |
| { ns_t_txt, "TXT" }, | |
| + | { ns_t_srv, "SRV" }, |
| { ns_t_ptr, "PTR" }, | |
| { ns_t_any, "ANY" }, | |
| }; | |
| @@ -435,6 +436,25 @@ static int parse_reply(const unsigned char *msg, size_t len) | |
| } | |
| break; | |
| + | case ns_t_srv: |
| + | if (rdlen < 6) { |
| + | //printf("SRV record too short\n"); |
| + | return -1; |
| + | } |
| + | |
| + | cp = ns_rr_rdata(rr); |
| + | n = ns_name_uncompress(ns_msg_base(handle), ns_msg_end(handle), |
| + | cp + 6, dname, sizeof(dname)); |
| + | |
| + | if (n < 0) { |
| + | //printf("Unable to uncompress domain: %s\n", strerror(errno)); |
| + | return -1; |
| + | } |
| + | |
| + | printf("%s\tservice = %u %u %u %s\n", ns_rr_name(rr), |
| + | ns_get16(cp), ns_get16(cp + 2), ns_get16(cp + 4), dname); |
| + | break; |
| + | |
| case ns_t_soa: | |
| if (rdlen < 20) { | |
| dbg("SOA record too short:%d\n", rdlen); | |