dns_txt

Section: C Library Functions (3) Local index Up

NAME

dns_txt - TXT records

SYNOPSIS

#include <dns.h>

dns_txt(&out, &fqdn);
dns_txt_packet(&out, buf, len);

  stralloc out = {0};
  stralloc fqdn = {0};
  char *buf;
  unsigned int len;

DESCRIPTION

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_packet is a low-level component of dns_txt, designed to support asynchronous DNS lookups. It reads a DNS packet of length len from buf, extracts the TXT records from the answer section of the packet, puts the results into out, and returns 0 or -1 the same way as dns_txt.

This document was created by man2html, using the manual pages.
Time: 21:45:10 GMT, April 16, 2011

dns_txt

NAME

SYNOPSIS

DESCRIPTION

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