network.h File Reference

#include <errno.h>
#include <stdint.h>
#include "config.h"
#include "libavutil/error.h"
#include "os_support.h"
#include "avio.h"
#include "url.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netdb.h>

Go to the source code of this file.

Data Structures
struct	sockaddr_storage
union	sockaddr_union
struct	addrinfo

Macros
#define	ff_neterrno()   AVERROR(errno)
#define	MSG_NOSIGNAL   0
#define	EAI_AGAIN   2
#define	EAI_BADFLAGS   3
#define	EAI_FAIL   4
#define	EAI_FAMILY   5
#define	EAI_MEMORY   6
#define	EAI_NODATA   7
#define	EAI_NONAME   8
#define	EAI_SERVICE   9
#define	EAI_SOCKTYPE   10
#define	AI_PASSIVE   1
#define	AI_CANONNAME   2
#define	AI_NUMERICHOST   4
#define	NI_NOFQDN   1
#define	NI_NUMERICHOST   2
#define	NI_NAMERQD   4
#define	NI_NUMERICSERV   8
#define	NI_DGRAM   16
#define	getaddrinfo   ff_getaddrinfo
#define	freeaddrinfo   ff_freeaddrinfo
#define	getnameinfo   ff_getnameinfo
#define	gai_strerror   ff_gai_strerror
#define	INADDR_LOOPBACK   0x7f000001
#define	INET_ADDRSTRLEN   16
#define	INET6_ADDRSTRLEN   INET_ADDRSTRLEN
#define	IN_MULTICAST(a)   ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)
#define	IN6_IS_ADDR_MULTICAST(a)   (((uint8_t *) (a))[0] == 0xff)
#define	POLLING_TIME   100

Functions
int	ff_socket_nonblock (int socket, int enable)
int	ff_network_init (void)
void	ff_network_close (void)
int	ff_tls_init (void)
void	ff_tls_deinit (void)
int	ff_network_wait_fd (int fd, int write)
int	ff_network_wait_fd_timeout (int fd, int write, int64_t timeout, AVIOInterruptCB *int_cb)
	This works similarly to ff_network_wait_fd, but waits up to 'timeout' microseconds Uses ff_network_wait_fd in a loop. More...
int	ff_network_sleep_interruptible (int64_t timeout, AVIOInterruptCB *int_cb)
	Waits for up to 'timeout' microseconds. More...
int	ff_getaddrinfo (const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res)
void	ff_freeaddrinfo (struct addrinfo *res)
int	ff_getnameinfo (const struct sockaddr *sa, int salen, char *host, int hostlen, char *serv, int servlen, int flags)
const char *	ff_gai_strerror (int ecode)
int	ff_is_multicast_address (struct sockaddr *addr)
int	ff_listen_bind (int fd, const struct sockaddr *addr, socklen_t addrlen, int timeout, URLContext *h)
	Bind to a file descriptor and poll for a connection. More...
int	ff_listen (int fd, const struct sockaddr *addr, socklen_t addrlen)
	Bind to a file descriptor to an address without accepting connections. More...
int	ff_accept (int fd, int timeout, URLContext *h)
	Poll for a single connection on the passed file descriptor. More...
int	ff_listen_connect (int fd, const struct sockaddr *addr, socklen_t addrlen, int timeout, URLContext *h, int will_try_next)
	Connect to a file descriptor and poll for result. More...
int	ff_http_match_no_proxy (const char *no_proxy, const char *hostname)
int	ff_socket (int domain, int type, int protocol)

Macro Definition Documentation

#define ff_neterrno

(

)

AVERROR(errno)

Definition at line 65 of file network.h.

Referenced by ff_accept(), ff_listen(), ff_listen_connect(), ff_network_wait_fd(), ff_poll_interrupt(), log_net_error(), rtp_read(), rtp_write(), sctp_open(), sctp_read(), sctp_wait_fd(), sctp_write(), tcp_get_window_size(), tcp_open(), tcp_read(), tcp_write(), udp_read(), udp_set_multicast_sources(), udp_write(), unix_open(), unix_read(), and unix_write().

#define MSG_NOSIGNAL   0

Definition at line 130 of file network.h.

Referenced by ff_sctp_send(), sctp_write(), tcp_write(), and unix_write().

#define EAI_AGAIN   2

Definition at line 148 of file network.h.

#define EAI_BADFLAGS   3

Definition at line 151 of file network.h.

#define EAI_FAIL   4

Definition at line 154 of file network.h.

#define EAI_FAMILY   5

Definition at line 157 of file network.h.

#define EAI_MEMORY   6

Definition at line 160 of file network.h.

#define EAI_NODATA   7

Definition at line 163 of file network.h.

#define EAI_NONAME   8

Definition at line 166 of file network.h.

#define EAI_SERVICE   9

Definition at line 169 of file network.h.

#define EAI_SOCKTYPE   10

Definition at line 172 of file network.h.

#define AI_PASSIVE   1

Definition at line 176 of file network.h.

Referenced by libsrt_setup(), tcp_open(), and udp_socket_create().

#define AI_CANONNAME   2

Definition at line 180 of file network.h.

#define AI_NUMERICHOST   4

Definition at line 184 of file network.h.

Referenced by ff_tls_open_underlying(), ff_url_join(), and get_sockaddr().

#define NI_NOFQDN   1

Definition at line 188 of file network.h.

#define NI_NUMERICHOST   2

Definition at line 192 of file network.h.

#define NI_NAMERQD   4

Definition at line 196 of file network.h.

#define NI_NUMERICSERV   8

Definition at line 200 of file network.h.

Referenced by udp_port().

#define NI_DGRAM   16

Definition at line 204 of file network.h.

#define getaddrinfo   ff_getaddrinfo

Definition at line 214 of file network.h.

Referenced by ff_tls_open_underlying(), ff_url_join(), get_sockaddr(), libsrt_setup(), rtp_resolve_host(), sap_write_header(), sctp_open(), tcp_open(), and udp_resolve_host().

#define freeaddrinfo   ff_freeaddrinfo

Definition at line 215 of file network.h.

Referenced by ff_tls_open_underlying(), ff_url_join(), get_sockaddr(), libsrt_setup(), rtp_parse_addr_list(), sap_write_header(), sctp_open(), tcp_open(), udp_set_multicast_sources(), udp_set_url(), and udp_socket_create().

#define getnameinfo   ff_getnameinfo

Definition at line 216 of file network.h.

Referenced by udp_port().

#define gai_strerror   ff_gai_strerror

Definition at line 222 of file network.h.

Referenced by get_sockaddr(), libsrt_setup(), rtp_resolve_host(), sctp_open(), tcp_open(), udp_port(), and udp_resolve_host().

#define INADDR_LOOPBACK   0x7f000001

Definition at line 226 of file network.h.

#define INET_ADDRSTRLEN   16

Definition at line 230 of file network.h.

#define INET6_ADDRSTRLEN   INET_ADDRSTRLEN

Definition at line 234 of file network.h.

#define IN_MULTICAST

(

a

)

((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)

Definition at line 238 of file network.h.

Referenced by ff_is_multicast_address().

#define IN6_IS_ADDR_MULTICAST

(

a

)

(((uint8_t *) (a))[0] == 0xff)

Definition at line 241 of file network.h.

Referenced by ff_is_multicast_address().

#define POLLING_TIME   100

Definition at line 246 of file network.h.

Referenced by ff_network_sleep_interruptible(), ff_network_wait_fd(), ff_poll_interrupt(), and libsrt_network_wait_fd().

Function Documentation

int ff_socket_nonblock	(	int	socket,
		int	enable
	)

Referenced by ff_accept(), ff_listen_connect(), and udp_open().

int ff_network_init

(

void

)

Definition at line 57 of file network.c.

Referenced by avformat_network_init(), sap_read_header(), sap_write_header(), and url_alloc_for_protocol().

void ff_network_close

(

void

)

Definition at line 115 of file network.c.

Referenced by avformat_network_deinit(), ffurl_closep(), rtsp_read_close(), rtsp_write_close(), sap_read_close(), sap_write_close(), and url_alloc_for_protocol().

int ff_tls_init

(

void

)

Definition at line 30 of file network.c.

Referenced by avformat_network_init().

void ff_tls_deinit

(

void

)

Definition at line 45 of file network.c.

Referenced by avformat_network_deinit().

int ff_network_wait_fd	(	int	fd,
		int	write
	)

Definition at line 68 of file network.c.

Referenced by ff_network_wait_fd_timeout(), rtp_write(), udp_read(), udp_write(), unix_read(), and unix_write().

int ff_network_wait_fd_timeout	(	int	fd,
		int	write,
		int64_t	timeout,
		AVIOInterruptCB *	int_cb
	)

This works similarly to ff_network_wait_fd, but waits up to 'timeout' microseconds Uses ff_network_wait_fd in a loop.

Socket descriptor Set 1 to wait for socket able to be read, 0 to be written Timeout interval, in microseconds. Actual precision is 100000 mcs, due to ff_network_wait_fd usage

Parameters

int_cb

Interrupt callback, is checked before each ff_network_wait_fd call

Returns

0 if data can be read/written, AVERROR(ETIMEDOUT) if timeout expired, or negative error code

Definition at line 77 of file network.c.

Referenced by tcp_read(), and tcp_write().

int ff_network_sleep_interruptible	(	int64_t	timeout,
		AVIOInterruptCB *	int_cb
	)

Waits for up to 'timeout' microseconds.

If the usert's int_cb is set and triggered, return before that. Timeout in microseconds. Maybe have lower actual precision.

Parameters

int_cb

Interrupt callback, is checked regularly.

Returns

AVERROR(ETIMEDOUT) if timeout expirted, AVERROR_EXIT if interrupted by int_cb

Definition at line 97 of file network.c.

Referenced by http_read_stream().

int ff_getaddrinfo	(	const char *	node,
		const char *	service,
		const struct addrinfo *	hints,
		struct addrinfo **	res
	)

void ff_freeaddrinfo

(

struct addrinfo *

res

)

int ff_getnameinfo	(	const struct sockaddr *	sa,
		int	salen,
		char *	host,
		int	hostlen,
		char *	serv,
		int	servlen,
		int	flags
	)

const char* ff_gai_strerror

(

int

ecode

)

int ff_is_multicast_address

(

struct sockaddr *

addr

)

Definition at line 144 of file network.c.

Referenced by ff_udp_set_remote_url().

int ff_listen_bind	(	int	fd,
		const struct sockaddr *	addr,
		socklen_t	addrlen,
		int	timeout,
		URLContext *	h
	)

Bind to a file descriptor and poll for a connection.

Parameters

fd	First argument of bind().
addr	Second argument of bind().
addrlen	Third argument of bind().
timeout	Polling timeout in milliseconds.
h	URLContext providing interrupt check callback and logging context.

Returns

A non-blocking file descriptor on success or an AVERROR on failure.

Definition at line 239 of file network.c.

Referenced by sctp_open(), tcp_open(), and unix_open().

int ff_listen	(	int	fd,
		const struct sockaddr *	addr,
		socklen_t	addrlen
	)

Bind to a file descriptor to an address without accepting connections.

Parameters

fd	First argument of bind().
addr	Second argument of bind().
addrlen	Third argument of bind().

Returns

0 on success or an AVERROR on failure.

Definition at line 203 of file network.c.

Referenced by ff_listen_bind(), and tcp_open().

int ff_accept	(	int	fd,
		int	timeout,
		URLContext *	h
	)

Poll for a single connection on the passed file descriptor.

Parameters

fd	The listening socket file descriptor.
timeout	Polling timeout in milliseconds.
h	URLContext providing interrupt check callback and logging context.

Returns

A non-blocking file descriptor on success or an AVERROR on failure.

Definition at line 221 of file network.c.

Referenced by ff_listen_bind(), and tcp_accept().

int ff_listen_connect	(	int	fd,
		const struct sockaddr *	addr,
		socklen_t	addrlen,
		int	timeout,
		URLContext *	h,
		int	will_try_next
	)

Connect to a file descriptor and poll for result.

Parameters

fd	First argument of connect(), will be set as non-blocking.
addr	Second argument of connect().
addrlen	Third argument of connect().
timeout	Polling timeout in milliseconds.
h	URLContext providing interrupt check callback and logging context.
will_try_next	Whether the caller will try to connect to another address for the same host name, affecting the form of logged errors.

Returns

0 on success, AVERROR on failure.

Definition at line 251 of file network.c.

Referenced by sctp_open(), tcp_open(), and unix_open().

int ff_http_match_no_proxy	(	const char *	no_proxy,
		const char *	hostname
	)

Definition at line 320 of file network.c.

Referenced by ff_tls_open_underlying(), http_open_cnx_internal(), and test().

int ff_socket	(	int	domain,
		int	type,
		int	protocol
	)

Definition at line 179 of file network.c.

Referenced by sctp_open(), tcp_open(), udp_socket_create(), and unix_open().