Manual Reference Pages - LIBOWFAT_DNS_TXT (3)
dns_txt - look up TXT records
int dns_txt(stralloc* out,stralloc* fqdn);
dns_txt looks up TXT records for the fully-qualified domain name in
fqdn. It puts the concatenation of the TXT records into out
and returns 0. If the domain does not exist in DNS, or has no TXT
records, out will be empty.
If dns_txt has trouble with the DNS lookup or runs out of memory, it returns
-1, setting errno appropriately. It may or may not change out.
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