| /* Copyright (c) 2014, Google Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #define _POSIX_SOURCE |
| |
| #include <openssl/bio.h> |
| #include <openssl/err.h> |
| |
| #include <fcntl.h> |
| #include <sys/types.h> |
| |
| #if !defined(OPENSSL_WINDOWS) |
| #include <netdb.h> |
| #include <unistd.h> |
| #else |
| #include <WinSock2.h> |
| #include <WS2tcpip.h> |
| typedef int socklen_t; |
| #endif |
| |
| #include "internal.h" |
| |
| |
| int bio_ip_and_port_to_socket_and_addr(int *out_sock, |
| struct sockaddr_storage *out_addr, |
| socklen_t *out_addr_length, |
| const char *hostname, |
| const char *port_str) { |
| struct addrinfo hint, *result, *cur; |
| int ret; |
| |
| *out_sock = -1; |
| |
| memset(&hint, 0, sizeof(hint)); |
| hint.ai_family = AF_UNSPEC; |
| hint.ai_socktype = SOCK_STREAM; |
| |
| ret = getaddrinfo(hostname, port_str, &hint, &result); |
| if (ret != 0) { |
| OPENSSL_PUT_ERROR(SYS, getaddrinfo, 0); |
| ERR_add_error_data(2, gai_strerror(ret)); |
| return 0; |
| } |
| |
| ret = 0; |
| |
| for (cur = result; cur; cur = cur->ai_next) { |
| if (cur->ai_addrlen > sizeof(struct sockaddr_storage)) { |
| continue; |
| } |
| memset(out_addr, 0, sizeof(struct sockaddr_storage)); |
| memcpy(out_addr, cur->ai_addr, cur->ai_addrlen); |
| *out_addr_length = cur->ai_addrlen; |
| |
| *out_sock = socket(cur->ai_family, cur->ai_socktype, cur->ai_protocol); |
| if (*out_sock < 0) { |
| OPENSSL_PUT_SYSTEM_ERROR(socket); |
| goto out; |
| } |
| |
| ret = 1; |
| break; |
| } |
| |
| out: |
| freeaddrinfo(result); |
| return ret; |
| } |
| |
| int bio_socket_nbio(int sock, int on) { |
| #if defined(OPENSSL_WINDOWS) |
| u_long arg = on; |
| |
| return 0 == ioctlsocket(sock, FIONBIO, &arg); |
| #else |
| int flags = fcntl(sock, F_GETFL, 0); |
| if (flags < 0) { |
| return 0; |
| } |
| if (!on) { |
| flags &= ~O_NONBLOCK; |
| } else { |
| flags |= O_NONBLOCK; |
| } |
| return fcntl(sock, F_SETFL, flags) == 0; |
| #endif |
| } |
| |
| void bio_clear_socket_error(void) {} |
| |
| int bio_sock_error(int sock) { |
| int error; |
| socklen_t error_size = sizeof(error); |
| |
| if (getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &error_size) < 0) { |
| return 1; |
| } |
| return error; |
| } |