streamtcp.c File Reference

This program performs multiple DNS queries on a TCP stream. More...

#include "config.h"
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "util/locks.h"
#include "util/log.h"
#include "util/net_help.h"
#include "util/proxy_protocol.h"
#include "util/data/msgencode.h"
#include "util/data/msgparse.h"
#include "util/data/msgreply.h"
#include "util/data/dname.h"
#include "sldns/sbuffer.h"
#include "sldns/str2wire.h"
#include "sldns/wire2str.h"
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/err.h>

Macros
#define	PF_INET6   10
	define in case streamtcp is compiled on legacy systems

Functions
static void	usage (char *argv[])
	usage information for streamtcp
static int	open_svr (const char *svr, int udp, struct sockaddr_storage *addr, socklen_t *addrlen)
	open TCP socket to svr
static void	write_soa_serial_to_buf (sldns_buffer *buf, struct query_info *qinfo, uint32_t serial)
	Append a SOA record with serial number.
static void	write_q (int fd, int udp, SSL *ssl, sldns_buffer *buf, uint16_t id, sldns_buffer *proxy_buf, int pp2_parsed, const char *strname, const char *strtype, const char *strclass)
	write a query over the TCP fd
static void	recv_one (int fd, int udp, SSL *ssl, sldns_buffer *buf)
	receive DNS datagram over TCP and print it
static void	print_any_answers (int fd, int udp, SSL *ssl, sldns_buffer *buf, int *num_answers, int wait_all)
	see if we can receive any results
static int	get_random (void)
static int	parse_pp2_client (const char *pp2_client, int udp, sldns_buffer *proxy_buf)
static void	send_em (const char *svr, const char *pp2_client, int udp, int usessl, int noanswer, int onarrival, int delay, int num, char **qs)
	send the TCP queries and print answers
int	main (int argc, char **argv)
	main program for streamtcp

Variables
int	optind
	getopt global, in case header files fail to declare it.
char *	optarg
	getopt global, in case header files fail to declare it.

Detailed Description

This program performs multiple DNS queries on a TCP stream.