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Imported Upstream version 4.8.0.309

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Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
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Xamarin Public Jenkins (auto-signing)
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
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203
external/boringssl/crypto/bio/socket.c vendored Normal file
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/* crypto/bio/bss_sock.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <openssl/bio.h>
#include <fcntl.h>
#include <string.h>
#if !defined(OPENSSL_WINDOWS)
#include <unistd.h>
#else
OPENSSL_MSVC_PRAGMA(warning(push, 3))
#include <winsock2.h>
OPENSSL_MSVC_PRAGMA(warning(pop))
#pragma comment(lib, "Ws2_32.lib")
#endif
#include "internal.h"
#if !defined(OPENSSL_WINDOWS)
static int closesocket(int sock) {
return close(sock);
}
#endif
static int sock_new(BIO *bio) {
bio->init = 0;
bio->num = 0;
bio->ptr = NULL;
bio->flags = 0;
return 1;
}
static int sock_free(BIO *bio) {
if (bio == NULL) {
return 0;
}
if (bio->shutdown) {
if (bio->init) {
closesocket(bio->num);
}
bio->init = 0;
bio->flags = 0;
}
return 1;
}
static int sock_read(BIO *b, char *out, int outl) {
int ret = 0;
if (out == NULL) {
return 0;
}
bio_clear_socket_error();
#if defined(OPENSSL_WINDOWS)
ret = recv(b->num, out, outl, 0);
#else
ret = read(b->num, out, outl);
#endif
BIO_clear_retry_flags(b);
if (ret <= 0) {
if (bio_fd_should_retry(ret)) {
BIO_set_retry_read(b);
}
}
return ret;
}
static int sock_write(BIO *b, const char *in, int inl) {
int ret;
bio_clear_socket_error();
#if defined(OPENSSL_WINDOWS)
ret = send(b->num, in, inl, 0);
#else
ret = write(b->num, in, inl);
#endif
BIO_clear_retry_flags(b);
if (ret <= 0) {
if (bio_fd_should_retry(ret)) {
BIO_set_retry_write(b);
}
}
return ret;
}
static int sock_puts(BIO *bp, const char *str) {
return sock_write(bp, str, strlen(str));
}
static long sock_ctrl(BIO *b, int cmd, long num, void *ptr) {
long ret = 1;
int *ip;
switch (cmd) {
case BIO_C_SET_FD:
sock_free(b);
b->num = *((int *)ptr);
b->shutdown = (int)num;
b->init = 1;
break;
case BIO_C_GET_FD:
if (b->init) {
ip = (int *)ptr;
if (ip != NULL) {
*ip = b->num;
}
ret = b->num;
} else {
ret = -1;
}
break;
case BIO_CTRL_GET_CLOSE:
ret = b->shutdown;
break;
case BIO_CTRL_SET_CLOSE:
b->shutdown = (int)num;
break;
case BIO_CTRL_FLUSH:
ret = 1;
break;
default:
ret = 0;
break;
}
return ret;
}
static const BIO_METHOD methods_sockp = {
BIO_TYPE_SOCKET, "socket", sock_write, sock_read, sock_puts,
NULL /* gets, */, sock_ctrl, sock_new, sock_free, NULL,
};
const BIO_METHOD *BIO_s_socket(void) { return &methods_sockp; }
BIO *BIO_new_socket(int fd, int close_flag) {
BIO *ret;
ret = BIO_new(BIO_s_socket());
if (ret == NULL) {
return NULL;
}
BIO_set_fd(ret, fd, close_flag);
return ret;
}