dns_txt - look up TXT records

       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.

       dns_txt - look up TXT records

dns_txt_packet(3)

                                                                                                      dns_txt(3)

#include<libowfat/dns.h>

       int dns_txt(stralloc* out,stralloc* fqdn);