ldns(3) Library Functions Manual ldns(3) NAME ldns_tcp_send_query, ldns_tcp_read_wire, ldns_tcp_connect - tcp queries SYNOPSIS #include #include #include ssize_t ldns_tcp_send_query(ldns_buffer *qbin, int sockfd, const struct sockaddr_storage *to, socklen_t tolen); uint8_t* ldns_tcp_read_wire(int sockfd, size_t *size); int ldns_tcp_connect(const struct sockaddr_storage *to, socklen_t tolen, struct timeval timeout); DESCRIPTION ldns_tcp_send_query() send a query via tcp to a server. Don't want for the answer qbin: the buffer to send sockfd: the socket to use to: which ip to send it tolen: socketlen Returns number of bytes sent ldns_tcp_read_wire() This routine may block. Use ldns_tcp_read_wire_timeout, it checks timeouts. Gives back a raw packet from the wire and reads the header data from the given socket. Allocates the data (of size size) itself, so don't forget to free sockfd: the socket to read from size: the number of bytes that are read Returns the data read ldns_tcp_connect() Create a tcp socket to the specified address This function has the flaw that it returns 0 on failure, but 0 could be a valid socket. Please use ldns_tcp_connect2 instead of this function. to: ip and family tolen: length of to timeout: timeout for the connect attempt Returns a socket descriptor or 0 on failure AUTHOR The ldns team at NLnet Labs. REPORTING BUGS Please report bugs to dns-team@nlnetlabs.nl or on GitHub at https://github.com/NLnetLabs/ldns/issues COPYRIGHT Copyright (c) 2004 - 2006 NLnet Labs. Licensed under the BSD License. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. SEE ALSO ldns_send, ldns_pkt, ldns_resolver. And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034 and RFC4035. REMARKS This manpage was automatically generated from the ldns source code. 30 May 2006 ldns(3)