ldns_tcp_send_query man page

ldns_tcp_send_query, ldns_tcp_read_wire, ldns_tcp_connect — tcp queries


#include <stdint.h>
#include <stdbool.h>

#include <ldns/ldns.h>

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);


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
to: ip and family
tolen: length of to
timeout: timeout for the connect attempt
Returns a socket descriptor


The ldns team at NLnet Labs. Which consists out of Jelte Jansen and Miek Gieben.

Reporting Bugs

Please report bugs to ldns-team@nlnetlabs.nl or in  our bugzilla at http://www.nlnetlabs.nl/bugs/index.html

See Also

ldns_send, ldns_pkt, ldns_resolver. And perldoc Net::DNS, RFC1034, RFC1035, RFC4033, RFC4034  and RFC4035.


This manpage was automatically generated from the ldns source code by use of Doxygen and some perl.

Referenced By

The man pages ldns_tcp_connect(3) and ldns_tcp_read_wire(3) are aliases of ldns_tcp_send_query(3).

30 May 2006