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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support
Security advisory:
This version has known vulnerabilities.
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Files
c_src/boringssl/crypto/bio/socket_helper.cc
// Copyright 2014 The BoringSSL Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#if defined(__linux__)
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
#endif
#include <openssl/bio.h>
#include <openssl/err.h>
#if !defined(OPENSSL_NO_SOCK)
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#if !defined(OPENSSL_WINDOWS)
#include <netdb.h>
#include <unistd.h>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
#include "internal.h"
#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;
OPENSSL_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, 0);
#if defined(OPENSSL_WINDOWS)
ERR_add_error_data(1, gai_strerrorA(ret));
#else
ERR_add_error_data(1, gai_strerror(ret));
#endif
return 0;
}
ret = 0;
for (cur = result; cur; cur = cur->ai_next) {
if ((size_t) cur->ai_addrlen > sizeof(struct sockaddr_storage)) {
continue;
}
OPENSSL_memset(out_addr, 0, sizeof(struct sockaddr_storage));
OPENSSL_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();
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;
}
int bio_socket_should_retry(int return_value) {
#if defined(OPENSSL_WINDOWS)
return return_value == -1 && WSAGetLastError() == WSAEWOULDBLOCK;
#else
// On POSIX platforms, sockets and fds are the same.
return bio_errno_should_retry(return_value);
#endif
}
#endif // OPENSSL_NO_SOCK