#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>

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

◆ ff_neterrno

#define ff_neterrno ( ) AVERROR(errno)

Definition at line 65 of file network.h.

Referenced by ff_accept(), ff_listen(), ff_listen_connect(), ff_network_close(), 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_get_file_handle(), udp_read(), udp_set_multicast_sources(), udp_write(), unix_open(), unix_read(), and unix_write().

◆ MSG_NOSIGNAL

#define MSG_NOSIGNAL 0

Definition at line 130 of file network.h.

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

◆ EAI_AGAIN

#define EAI_AGAIN 2

Definition at line 148 of file network.h.

◆ EAI_BADFLAGS

#define EAI_BADFLAGS 3

Definition at line 151 of file network.h.

◆ EAI_FAIL

#define EAI_FAIL 4

Definition at line 154 of file network.h.

◆ EAI_FAMILY

#define EAI_FAMILY 5

Definition at line 157 of file network.h.

◆ EAI_MEMORY

#define EAI_MEMORY 6

Definition at line 160 of file network.h.

◆ EAI_NODATA

#define EAI_NODATA 7

Definition at line 163 of file network.h.

◆ EAI_NONAME

#define EAI_NONAME 8

Definition at line 166 of file network.h.

◆ EAI_SERVICE

#define EAI_SERVICE 9

Definition at line 169 of file network.h.

◆ EAI_SOCKTYPE

#define EAI_SOCKTYPE 10

Definition at line 172 of file network.h.

◆ AI_PASSIVE

#define AI_PASSIVE 1

Definition at line 176 of file network.h.

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

◆ AI_CANONNAME

#define AI_CANONNAME 2

Definition at line 180 of file network.h.

◆ AI_NUMERICHOST

#define AI_NUMERICHOST 4

Definition at line 184 of file network.h.

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

◆ NI_NOFQDN

#define NI_NOFQDN 1

Definition at line 188 of file network.h.

◆ NI_NUMERICHOST

#define NI_NUMERICHOST 2

Definition at line 192 of file network.h.

Referenced by ff_rtsp_open_transport_ctx().

◆ NI_NAMERQD

#define NI_NAMERQD 4

Definition at line 196 of file network.h.

◆ NI_NUMERICSERV

#define NI_NUMERICSERV 8

Definition at line 200 of file network.h.

Referenced by udp_port().

◆ NI_DGRAM

#define NI_DGRAM 16

Definition at line 204 of file network.h.

◆ getaddrinfo

#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().

◆ freeaddrinfo

#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().

◆ getnameinfo

#define getnameinfo ff_getnameinfo

Definition at line 216 of file network.h.

Referenced by ff_rtsp_open_transport_ctx(), and udp_port().

◆ gai_strerror

#define gai_strerror ff_gai_strerror

Definition at line 222 of file network.h.

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

◆ INADDR_LOOPBACK

#define INADDR_LOOPBACK 0x7f000001

Definition at line 226 of file network.h.

◆ INET_ADDRSTRLEN

#define INET_ADDRSTRLEN 16

Definition at line 230 of file network.h.

◆ INET6_ADDRSTRLEN

#define INET6_ADDRSTRLEN INET_ADDRSTRLEN

Definition at line 234 of file network.h.

◆ IN_MULTICAST

#define IN_MULTICAST ( a ) ((((uint32_t)(a)) & 0xf0000000) == 0xe0000000)

Definition at line 238 of file network.h.

Referenced by ff_is_multicast_address().

◆ IN6_IS_ADDR_MULTICAST

#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().

◆ POLLING_TIME

#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

◆ ff_socket_nonblock()

int ff_socket_nonblock	(	int	socket,
		int	enable
	)

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

◆ ff_network_init()

int ff_network_init ( void )

Definition at line 57 of file network.c.

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

◆ ff_network_close()

void ff_network_close ( void )

Definition at line 115 of file network.c.

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

◆ ff_tls_init()

int ff_tls_init ( void )

Definition at line 30 of file network.c.

Referenced by avformat_network_init().

◆ ff_tls_deinit()

void ff_tls_deinit ( void )

Definition at line 45 of file network.c.

Referenced by avformat_network_deinit().

◆ ff_network_wait_fd()

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().

◆ ff_network_wait_fd_timeout()

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().

◆ ff_network_sleep_interruptible()

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().

◆ ff_getaddrinfo()

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

◆ ff_freeaddrinfo()

void ff_freeaddrinfo ( struct addrinfo * res )

◆ ff_getnameinfo()

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

◆ ff_gai_strerror()

const char* ff_gai_strerror ( int ecode )

◆ ff_is_multicast_address()

int ff_is_multicast_address ( struct sockaddr * addr )

Definition at line 144 of file network.c.

Referenced by ff_udp_set_remote_url().

◆ ff_listen_bind()

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().

◆ ff_listen()

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().

◆ ff_accept()

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().

◆ ff_listen_connect()

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().

◆ ff_http_match_no_proxy()

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().

◆ ff_socket()

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().

Data Structures

Macros

Functions

Macro Definition Documentation

◆ ff_neterrno

◆ MSG_NOSIGNAL

◆ EAI_AGAIN

◆ EAI_BADFLAGS

◆ EAI_FAIL

◆ EAI_FAMILY

◆ EAI_MEMORY

◆ EAI_NODATA

◆ EAI_NONAME

◆ EAI_SERVICE

◆ EAI_SOCKTYPE

◆ AI_PASSIVE

◆ AI_CANONNAME

◆ AI_NUMERICHOST

◆ NI_NOFQDN

◆ NI_NUMERICHOST

◆ NI_NAMERQD

◆ NI_NUMERICSERV

◆ NI_DGRAM

◆ getaddrinfo

◆ freeaddrinfo

◆ getnameinfo

◆ gai_strerror

◆ INADDR_LOOPBACK

◆ INET_ADDRSTRLEN

◆ INET6_ADDRSTRLEN

◆ IN_MULTICAST

◆ IN6_IS_ADDR_MULTICAST

◆ POLLING_TIME

Function Documentation

◆ ff_socket_nonblock()

◆ ff_network_init()

◆ ff_network_close()

◆ ff_tls_init()

◆ ff_tls_deinit()

◆ ff_network_wait_fd()

◆ ff_network_wait_fd_timeout()

◆ ff_network_sleep_interruptible()

◆ ff_getaddrinfo()

◆ ff_freeaddrinfo()

◆ ff_getnameinfo()

◆ ff_gai_strerror()

◆ ff_is_multicast_address()

◆ ff_listen_bind()

◆ ff_listen()

◆ ff_accept()

◆ ff_listen_connect()

◆ ff_http_match_no_proxy()

◆ ff_socket()