#include "ares_setup.h"
#include <sys/uio.h>
#include "ares_nameser.h"
#include <assert.h>
#include <fcntl.h>
#include <limits.h>
#include "ares.h"
#include "ares_dns.h"
#include "ares_nowarn.h"
#include "ares_private.h"

Include dependency graph for ares_process.c:

Functions
static void	advance_tcp_send_queue (ares_channel channel, int whichserver, ares_ssize_t num_bytes)

void	ares__close_socket (ares_channel channel, ares_socket_t s)

int	ares__connect_socket (ares_channel channel, ares_socket_t sockfd, const struct sockaddr *addr, ares_socklen_t addrlen)

void	ares__free_query (struct query *query)

ares_socket_t	ares__open_socket (ares_channel channel, int af, int type, int protocol)

void	ares__send_query (ares_channel channel, struct query query, struct timeval now)

int	ares__timedout (struct timeval now, struct timeval check)

void	ares_process (ares_channel channel, fd_set read_fds, fd_set write_fds)

void	ares_process_fd (ares_channel channel, ares_socket_t read_fd, ares_socket_t write_fd)

static int	configure_socket (ares_socket_t s, int family, ares_channel channel)

static void	end_query (ares_channel channel, struct query query, int status, unsigned char abuf, int alen)

static void	handle_error (ares_channel channel, int whichserver, struct timeval *now)

static int	has_opt_rr (const unsigned char *abuf, int alen)

static void	next_server (ares_channel channel, struct query query, struct timeval now)

static int	open_tcp_socket (ares_channel channel, struct server_state *server)

static int	open_udp_socket (ares_channel channel, struct server_state *server)

static void	process_answer (ares_channel channel, unsigned char abuf, int alen, int whichserver, int tcp, struct timeval now)

static void	process_broken_connections (ares_channel channel, struct timeval *now)

static void	process_timeouts (ares_channel channel, struct timeval *now)

static void	processfds (ares_channel channel, fd_set read_fds, ares_socket_t read_fd, fd_set write_fds, ares_socket_t write_fd)

static void	read_tcp_data (ares_channel channel, fd_set read_fds, ares_socket_t read_fd, struct timeval now)

static void	read_udp_packets (ares_channel channel, fd_set read_fds, ares_socket_t read_fd, struct timeval now)

static int	same_address (struct sockaddr sa, struct ares_addr aa)

static int	same_questions (const unsigned char qbuf, int qlen, const unsigned char abuf, int alen)

static int	setsocknonblock (ares_socket_t sockfd, int nonblock)

static void	skip_server (ares_channel channel, struct query *query, int whichserver)

static ares_ssize_t	socket_recv (ares_channel channel, ares_socket_t s, void *data, size_t data_len)

static ares_ssize_t	socket_recvfrom (ares_channel channel, ares_socket_t s, void data, size_t data_len, int flags, struct sockaddr from, ares_socklen_t *from_len)

static ares_ssize_t	socket_write (ares_channel channel, ares_socket_t s, const void *data, size_t len)

static ares_ssize_t	socket_writev (ares_channel channel, ares_socket_t s, const struct iovec *vec, int len)

static void	swap_lists (struct list_node head_a, struct list_node head_b)

static void	timeadd (struct timeval *now, int millisecs)

static int	try_again (int errnum)

static void	write_tcp_data (ares_channel channel, fd_set write_fds, ares_socket_t write_fd, struct timeval now)

Function Documentation

◆ advance_tcp_send_queue()

static void advance_tcp_send_queue	(	ares_channel	channel,
		int	whichserver,
		ares_ssize_t	num_bytes
	)

static

Definition at line 292 of file ares_process.c.

◆ ares__close_socket()

void ares__close_socket	(	ares_channel	channel,
		ares_socket_t	s
	)

Definition at line 1542 of file ares_process.c.

◆ ares__connect_socket()

int ares__connect_socket	(	ares_channel	channel,
		ares_socket_t	sockfd,
		const struct sockaddr *	addr,
		ares_socklen_t	addrlen
	)

Definition at line 1528 of file ares_process.c.

◆ ares__free_query()

void ares__free_query ( struct query * query )

Definition at line 1500 of file ares_process.c.

◆ ares__open_socket()

ares_socket_t ares__open_socket	(	ares_channel	channel,
		int	af,
		int	type,
		int	protocol
	)

Definition at line 1516 of file ares_process.c.

◆ ares__send_query()

void ares__send_query	(	ares_channel	channel,
		struct query *	query,
		struct timeval *	now
	)

Definition at line 799 of file ares_process.c.

◆ ares__timedout()

int ares__timedout	(	struct timeval *	now,
		struct timeval *	check
	)

Definition at line 89 of file ares_process.c.

◆ ares_process()

void ares_process	(	ares_channel	channel,
		fd_set *	read_fds,
		fd_set *	write_fds
	)

Definition at line 134 of file ares_process.c.

◆ ares_process_fd()

void ares_process_fd	(	ares_channel	channel,
		ares_socket_t	read_fd,
		ares_socket_t	write_fd
	)

Definition at line 142 of file ares_process.c.

◆ configure_socket()

static int configure_socket	(	ares_socket_t	s,
		int	family,
		ares_channel	channel
	)

static

Definition at line 969 of file ares_process.c.

◆ end_query()

static void end_query	(	ares_channel	channel,
		struct query *	query,
		int	status,
		unsigned char *	abuf,
		int	alen
	)

static

Definition at line 1430 of file ares_process.c.

◆ handle_error()

static void handle_error	(	ares_channel	channel,
		int	whichserver,
		struct timeval *	now
	)

static

Definition at line 705 of file ares_process.c.

◆ has_opt_rr()

static int has_opt_rr	(	const unsigned char *	abuf,
		int	alen
	)

static

Definition at line 1352 of file ares_process.c.

◆ next_server()

static void next_server	(	ares_channel	channel,
		struct query *	query,
		struct timeval *	now
	)

static

Definition at line 757 of file ares_process.c.

◆ open_tcp_socket()

static int open_tcp_socket	(	ares_channel	channel,
		struct server_state *	server
	)

static

Definition at line 1036 of file ares_process.c.

◆ open_udp_socket()

static int open_udp_socket	(	ares_channel	channel,
		struct server_state *	server
	)

static

Definition at line 1150 of file ares_process.c.

◆ process_answer()

static void process_answer	(	ares_channel	channel,
		unsigned char *	abuf,
		int	alen,
		int	whichserver,
		int	tcp,
		struct timeval *	now
	)

static

Definition at line 564 of file ares_process.c.

◆ process_broken_connections()

static void process_broken_connections	(	ares_channel	channel,
		struct timeval *	now
	)

static

Definition at line 666 of file ares_process.c.

◆ process_timeouts()

static void process_timeouts	(	ares_channel	channel,
		struct timeval *	now
	)

static

Definition at line 533 of file ares_process.c.

◆ processfds()

static void processfds	(	ares_channel	channel,
		fd_set *	read_fds,
		ares_socket_t	read_fd,
		fd_set *	write_fds,
		ares_socket_t	write_fd
	)

static

Definition at line 118 of file ares_process.c.

◆ read_tcp_data()

static void read_tcp_data	(	ares_channel	channel,
		fd_set *	read_fds,
		ares_socket_t	read_fd,
		struct timeval *	now
	)

static

Definition at line 357 of file ares_process.c.

◆ read_udp_packets()

static void read_udp_packets	(	ares_channel	channel,
		fd_set *	read_fds,
		ares_socket_t	read_fd,
		struct timeval *	now
	)

static

Definition at line 455 of file ares_process.c.

◆ same_address()

static int same_address	(	struct sockaddr *	sa,
		struct ares_addr *	aa
	)

static

Definition at line 1323 of file ares_process.c.

◆ same_questions()

static int same_questions	(	const unsigned char *	qbuf,
		int	qlen,
		const unsigned char *	abuf,
		int	alen
	)

static

Definition at line 1244 of file ares_process.c.

◆ setsocknonblock()

static int setsocknonblock	(	ares_socket_t	sockfd,
		int	nonblock
	)

static

Definition at line 919 of file ares_process.c.

◆ skip_server()

static void skip_server	(	ares_channel	channel,
		struct query *	query,
		int	whichserver
	)

static

Definition at line 740 of file ares_process.c.

◆ socket_recv()

static ares_ssize_t socket_recv	(	ares_channel	channel,
		ares_socket_t	s,
		void *	data,
		size_t	data_len
	)

static

Definition at line 341 of file ares_process.c.

◆ socket_recvfrom()

static ares_ssize_t socket_recvfrom	(	ares_channel	channel,
		ares_socket_t	s,
		void *	data,
		size_t	data_len,
		int	flags,
		struct sockaddr *	from,
		ares_socklen_t *	from_len
	)

static

Definition at line 321 of file ares_process.c.

◆ socket_write()

static ares_ssize_t socket_write	(	ares_channel	channel,
		ares_socket_t	s,
		const void *	data,
		size_t	len
	)

static

Definition at line 185 of file ares_process.c.

◆ socket_writev()

static ares_ssize_t socket_writev	(	ares_channel	channel,
		ares_socket_t	s,
		const struct iovec *	vec,
		int	len
	)

static

Definition at line 177 of file ares_process.c.

◆ swap_lists()

static void swap_lists	(	struct list_node *	head_a,
		struct list_node *	head_b
	)

static

Definition at line 681 of file ares_process.c.

◆ timeadd()

static void timeadd	(	struct timeval *	now,
		int	millisecs
	)

static

Definition at line 104 of file ares_process.c.

◆ try_again()

static int try_again ( int errnum )

static

Definition at line 158 of file ares_process.c.

◆ write_tcp_data()

static void write_tcp_data	(	ares_channel	channel,
		fd_set *	write_fds,
		ares_socket_t	write_fd,
		struct timeval *	now
	)

static

Definition at line 200 of file ares_process.c.

Functions

Function Documentation

◆ advance_tcp_send_queue()

◆ ares__close_socket()

◆ ares__connect_socket()

◆ ares__free_query()

◆ ares__open_socket()

◆ ares__send_query()

◆ ares__timedout()

◆ ares_process()

◆ ares_process_fd()

◆ configure_socket()

◆ end_query()

◆ handle_error()

◆ has_opt_rr()

◆ next_server()

◆ open_tcp_socket()

◆ open_udp_socket()

◆ process_answer()

◆ process_broken_connections()

◆ process_timeouts()

◆ processfds()

◆ read_tcp_data()

◆ read_udp_packets()

◆ same_address()

◆ same_questions()

◆ setsocknonblock()

◆ skip_server()

◆ socket_recv()

◆ socket_recvfrom()

◆ socket_write()

◆ socket_writev()

◆ swap_lists()

◆ timeadd()

◆ try_again()

◆ write_tcp_data()