| #ifndef HEADER_CURL_CF_SOCKET_H |
| #define HEADER_CURL_CF_SOCKET_H |
| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
| * |
| * This software is licensed as described in the file COPYING, which |
| * you should have received as part of this distribution. The terms |
| * are also available at https://curl.se/docs/copyright.html. |
| * |
| * You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| * copies of the Software, and permit persons to whom the Software is |
| * furnished to do so, under the terms of the COPYING file. |
| * |
| * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| * KIND, either express or implied. |
| * |
| * SPDX-License-Identifier: curl |
| * |
| ***************************************************************************/ |
| #include "curl_setup.h" |
| |
| #include "nonblock.h" /* for curlx_nonblock(), formerly Curl_nonblock() */ |
| #include "sockaddr.h" |
| |
| struct Curl_addrinfo; |
| struct Curl_cfilter; |
| struct Curl_easy; |
| struct connectdata; |
| struct Curl_sockaddr_ex; |
| struct ip_quadruple; |
| |
| /* |
| * The Curl_sockaddr_ex structure is basically libcurl's external API |
| * curl_sockaddr structure with enough space available to directly hold any |
| * protocol-specific address structures. The variable declared here will be |
| * used to pass / receive data to/from the fopensocket callback if this has |
| * been set, before that, it is initialized from parameters. |
| */ |
| struct Curl_sockaddr_ex { |
| int family; |
| int socktype; |
| int protocol; |
| unsigned int addrlen; |
| union { |
| struct sockaddr addr; |
| struct Curl_sockaddr_storage buff; |
| } _sa_ex_u; |
| }; |
| #define sa_addr _sa_ex_u.addr |
| |
| |
| /* |
| * Create a socket based on info from 'conn' and 'ai'. |
| * |
| * Fill in 'addr' and 'sockfd' accordingly if OK is returned. If the open |
| * socket callback is set, used that! |
| * |
| */ |
| CURLcode Curl_socket_open(struct Curl_easy *data, |
| const struct Curl_addrinfo *ai, |
| struct Curl_sockaddr_ex *addr, |
| int transport, |
| curl_socket_t *sockfd); |
| |
| int Curl_socket_close(struct Curl_easy *data, struct connectdata *conn, |
| curl_socket_t sock); |
| |
| #ifdef USE_WINSOCK |
| /* When you run a program that uses the Windows Sockets API, you may |
| experience slow performance when you copy data to a TCP server. |
| |
| https://support.microsoft.com/kb/823764 |
| |
| Work-around: Make the Socket Send Buffer Size Larger Than the Program Send |
| Buffer Size |
| |
| */ |
| void Curl_sndbufset(curl_socket_t sockfd); |
| #else |
| #define Curl_sndbufset(y) Curl_nop_stmt |
| #endif |
| |
| /** |
| * Assign the address `ai` to the Curl_sockaddr_ex `dest` and |
| * set the transport used. |
| */ |
| void Curl_sock_assign_addr(struct Curl_sockaddr_ex *dest, |
| const struct Curl_addrinfo *ai, |
| int transport); |
| |
| /** |
| * Creates a cfilter that opens a TCP socket to the given address |
| * when calling its `connect` implementation. |
| * The filter will not touch any connection/data flags and can be |
| * used in happy eyeballing. Once selected for use, its `_active()` |
| * method needs to be called. |
| */ |
| CURLcode Curl_cf_tcp_create(struct Curl_cfilter **pcf, |
| struct Curl_easy *data, |
| struct connectdata *conn, |
| const struct Curl_addrinfo *ai, |
| int transport); |
| |
| /** |
| * Creates a cfilter that opens a UDP socket to the given address |
| * when calling its `connect` implementation. |
| * The filter will not touch any connection/data flags and can be |
| * used in happy eyeballing. Once selected for use, its `_active()` |
| * method needs to be called. |
| */ |
| CURLcode Curl_cf_udp_create(struct Curl_cfilter **pcf, |
| struct Curl_easy *data, |
| struct connectdata *conn, |
| const struct Curl_addrinfo *ai, |
| int transport); |
| |
| /** |
| * Creates a cfilter that opens a UNIX socket to the given address |
| * when calling its `connect` implementation. |
| * The filter will not touch any connection/data flags and can be |
| * used in happy eyeballing. Once selected for use, its `_active()` |
| * method needs to be called. |
| */ |
| CURLcode Curl_cf_unix_create(struct Curl_cfilter **pcf, |
| struct Curl_easy *data, |
| struct connectdata *conn, |
| const struct Curl_addrinfo *ai, |
| int transport); |
| |
| /** |
| * Creates a cfilter that keeps a listening socket. |
| */ |
| CURLcode Curl_conn_tcp_listen_set(struct Curl_easy *data, |
| struct connectdata *conn, |
| int sockindex, |
| curl_socket_t *s); |
| |
| /** |
| * Replace the listen socket with the accept()ed one. |
| */ |
| CURLcode Curl_conn_tcp_accepted_set(struct Curl_easy *data, |
| struct connectdata *conn, |
| int sockindex, |
| curl_socket_t *s); |
| |
| /** |
| * Peek at the socket and remote ip/port the socket filter is using. |
| * The filter owns all returned values. |
| * @param psock pointer to hold socket descriptor or NULL |
| * @param paddr pointer to hold addr reference or NULL |
| * @param pip pointer to get IP quadruple or NULL |
| * Returns error if the filter is of invalid type. |
| */ |
| CURLcode Curl_cf_socket_peek(struct Curl_cfilter *cf, |
| struct Curl_easy *data, |
| curl_socket_t *psock, |
| const struct Curl_sockaddr_ex **paddr, |
| struct ip_quadruple *pip); |
| |
| extern struct Curl_cftype Curl_cft_tcp; |
| extern struct Curl_cftype Curl_cft_udp; |
| extern struct Curl_cftype Curl_cft_unix; |
| extern struct Curl_cftype Curl_cft_tcp_accept; |
| |
| #endif /* HEADER_CURL_CF_SOCKET_H */ |