Removed old mbedtls, replacing with submodule.

1 files changed, 0 insertions, 713 deletions

diff --git a/lib/mbedtls-2.27.0/library/net_sockets.c b/lib/mbedtls-2.27.0/library/net_sockets.c
deleted file mode 100644
index 5fbe1f7..0000000
--- a/lib/mbedtls-2.27.0/library/net_sockets.c
+++ /dev/null
@@ -1,713 +0,0 @@
-/*
- *  TCP/IP or UDP/IP networking functions
- *
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0
- *
- *  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
- *
- *  http://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.
- */
-
-/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must
- * be set before config.h, which pulls in glibc's features.h indirectly.
- * Harmless on other platforms. */
-#ifndef _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 200112L
-#endif
-#ifndef _XOPEN_SOURCE
-#define _XOPEN_SOURCE 600 /* sockaddr_storage */
-#endif
-
-#include "common.h"
-
-#if defined(MBEDTLS_NET_C)
-
-#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
-    !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
-    !defined(__HAIKU__) && !defined(__midipix__)
-#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
-#endif
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#endif
-
-#include "mbedtls/net_sockets.h"
-#include "mbedtls/error.h"
-
-#include <string.h>
-
-#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
-    !defined(EFI32)
-
-#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
-
-#if !defined(_WIN32_WINNT)
-/* Enables getaddrinfo() & Co */
-#define _WIN32_WINNT 0x0501
-#endif
-
-#include <ws2tcpip.h>
-
-#include <winsock2.h>
-#include <windows.h>
-#if (_WIN32_WINNT < 0x0501)
-#include <wspiapi.h>
-#endif
-
-#if defined(_MSC_VER)
-#if defined(_WIN32_WCE)
-#pragma comment( lib, "ws2.lib" )
-#else
-#pragma comment( lib, "ws2_32.lib" )
-#endif
-#endif /* _MSC_VER */
-
-#define read(fd,buf,len)        recv( fd, (char*)( buf ), (int)( len ), 0 )
-#define write(fd,buf,len)       send( fd, (char*)( buf ), (int)( len ), 0 )
-#define close(fd)               closesocket(fd)
-
-static int wsa_init_done = 0;
-
-#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <errno.h>
-
-#define IS_EINTR( ret ) ( ( ret ) == EINTR )
-
-#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-/* Some MS functions want int and MSVC warns if we pass size_t,
- * but the standard functions use socklen_t, so cast only for MSVC */
-#if defined(_MSC_VER)
-#define MSVC_INT_CAST   (int)
-#else
-#define MSVC_INT_CAST
-#endif
-
-#include <stdio.h>
-
-#include <time.h>
-
-#include <stdint.h>
-
-/*
- * Prepare for using the sockets interface
- */
-static int net_prepare( void )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    WSADATA wsaData;
-
-    if( wsa_init_done == 0 )
-    {
-        if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 )
-            return( MBEDTLS_ERR_NET_SOCKET_FAILED );
-
-        wsa_init_done = 1;
-    }
-#else
-#if !defined(EFIX64) && !defined(EFI32)
-    signal( SIGPIPE, SIG_IGN );
-#endif
-#endif
-    return( 0 );
-}
-
-/*
- * Return 0 if the file descriptor is valid, an error otherwise.
- * If for_select != 0, check whether the file descriptor is within the range
- * allowed for fd_set used for the FD_xxx macros and the select() function.
- */
-static int check_fd( int fd, int for_select )
-{
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
-
-#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
-    !defined(EFI32)
-    (void) for_select;
-#else
-    /* A limitation of select() is that it only works with file descriptors
-     * that are strictly less than FD_SETSIZE. This is a limitation of the
-     * fd_set type. Error out early, because attempting to call FD_SET on a
-     * large file descriptor is a buffer overflow on typical platforms. */
-    if( for_select && fd >= FD_SETSIZE )
-        return( MBEDTLS_ERR_NET_POLL_FAILED );
-#endif
-
-    return( 0 );
-}
-
-/*
- * Initialize a context
- */
-void mbedtls_net_init( mbedtls_net_context *ctx )
-{
-    ctx->fd = -1;
-}
-
-/*
- * Initiate a TCP connection with host:port and the given protocol
- */
-int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host,
-                         const char *port, int proto )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    struct addrinfo hints, *addr_list, *cur;
-
-    if( ( ret = net_prepare() ) != 0 )
-        return( ret );
-
-    /* Do name resolution with both IPv6 and IPv4 */
-    memset( &hints, 0, sizeof( hints ) );
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
-    hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
-
-    if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
-        return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
-
-    /* Try the sockaddrs until a connection succeeds */
-    ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
-    for( cur = addr_list; cur != NULL; cur = cur->ai_next )
-    {
-        ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
-                            cur->ai_protocol );
-        if( ctx->fd < 0 )
-        {
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 )
-        {
-            ret = 0;
-            break;
-        }
-
-        close( ctx->fd );
-        ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
-    }
-
-    freeaddrinfo( addr_list );
-
-    return( ret );
-}
-
-/*
- * Create a listening socket on bind_ip:port
- */
-int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto )
-{
-    int n, ret;
-    struct addrinfo hints, *addr_list, *cur;
-
-    if( ( ret = net_prepare() ) != 0 )
-        return( ret );
-
-    /* Bind to IPv6 and/or IPv4, but only in the desired protocol */
-    memset( &hints, 0, sizeof( hints ) );
-    hints.ai_family = AF_UNSPEC;
-    hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
-    hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
-    if( bind_ip == NULL )
-        hints.ai_flags = AI_PASSIVE;
-
-    if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 )
-        return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
-
-    /* Try the sockaddrs until a binding succeeds */
-    ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
-    for( cur = addr_list; cur != NULL; cur = cur->ai_next )
-    {
-        ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
-                            cur->ai_protocol );
-        if( ctx->fd < 0 )
-        {
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        n = 1;
-        if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR,
-                        (const char *) &n, sizeof( n ) ) != 0 )
-        {
-            close( ctx->fd );
-            ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
-            continue;
-        }
-
-        if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 )
-        {
-            close( ctx->fd );
-            ret = MBEDTLS_ERR_NET_BIND_FAILED;
-            continue;
-        }
-
-        /* Listen only makes sense for TCP */
-        if( proto == MBEDTLS_NET_PROTO_TCP )
-        {
-            if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 )
-            {
-                close( ctx->fd );
-                ret = MBEDTLS_ERR_NET_LISTEN_FAILED;
-                continue;
-            }
-        }
-
-        /* Bind was successful */
-        ret = 0;
-        break;
-    }
-
-    freeaddrinfo( addr_list );
-
-    return( ret );
-
-}
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-/*
- * Check if the requested operation would be blocking on a non-blocking socket
- * and thus 'failed' with a negative return value.
- */
-static int net_would_block( const mbedtls_net_context *ctx )
-{
-    ((void) ctx);
-    return( WSAGetLastError() == WSAEWOULDBLOCK );
-}
-#else
-/*
- * Check if the requested operation would be blocking on a non-blocking socket
- * and thus 'failed' with a negative return value.
- *
- * Note: on a blocking socket this function always returns 0!
- */
-static int net_would_block( const mbedtls_net_context *ctx )
-{
-    int err = errno;
-
-    /*
-     * Never return 'WOULD BLOCK' on a blocking socket
-     */
-    if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )
-    {
-        errno = err;
-        return( 0 );
-    }
-
-    switch( errno = err )
-    {
-#if defined EAGAIN
-        case EAGAIN:
-#endif
-#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
-        case EWOULDBLOCK:
-#endif
-            return( 1 );
-    }
-    return( 0 );
-}
-#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
-
-/*
- * Accept a connection from a remote client
- */
-int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
-                        mbedtls_net_context *client_ctx,
-                        void *client_ip, size_t buf_size, size_t *ip_len )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    int type;
-
-    struct sockaddr_storage client_addr;
-
-#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) ||  \
-    defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t) || \
-    defined(socklen_t) || (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L)
-    socklen_t n = (socklen_t) sizeof( client_addr );
-    socklen_t type_len = (socklen_t) sizeof( type );
-#else
-    int n = (int) sizeof( client_addr );
-    int type_len = (int) sizeof( type );
-#endif
-
-    /* Is this a TCP or UDP socket? */
-    if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE,
-                    (void *) &type, &type_len ) != 0 ||
-        ( type != SOCK_STREAM && type != SOCK_DGRAM ) )
-    {
-        return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-    }
-
-    if( type == SOCK_STREAM )
-    {
-        /* TCP: actual accept() */
-        ret = client_ctx->fd = (int) accept( bind_ctx->fd,
-                                             (struct sockaddr *) &client_addr, &n );
-    }
-    else
-    {
-        /* UDP: wait for a message, but keep it in the queue */
-        char buf[1] = { 0 };
-
-        ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK,
-                        (struct sockaddr *) &client_addr, &n );
-
-#if defined(_WIN32)
-        if( ret == SOCKET_ERROR &&
-            WSAGetLastError() == WSAEMSGSIZE )
-        {
-            /* We know buf is too small, thanks, just peeking here */
-            ret = 0;
-        }
-#endif
-    }
-
-    if( ret < 0 )
-    {
-        if( net_would_block( bind_ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-
-        return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-    }
-
-    /* UDP: hijack the listening socket to communicate with the client,
-     * then bind a new socket to accept new connections */
-    if( type != SOCK_STREAM )
-    {
-        struct sockaddr_storage local_addr;
-        int one = 1;
-
-        if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 )
-            return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
-
-        client_ctx->fd = bind_ctx->fd;
-        bind_ctx->fd   = -1; /* In case we exit early */
-
-        n = sizeof( struct sockaddr_storage );
-        if( getsockname( client_ctx->fd,
-                         (struct sockaddr *) &local_addr, &n ) != 0 ||
-            ( bind_ctx->fd = (int) socket( local_addr.ss_family,
-                                           SOCK_DGRAM, IPPROTO_UDP ) ) < 0 ||
-            setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR,
-                        (const char *) &one, sizeof( one ) ) != 0 )
-        {
-            return( MBEDTLS_ERR_NET_SOCKET_FAILED );
-        }
-
-        if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 )
-        {
-            return( MBEDTLS_ERR_NET_BIND_FAILED );
-        }
-    }
-
-    if( client_ip != NULL )
-    {
-        if( client_addr.ss_family == AF_INET )
-        {
-            struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr;
-            *ip_len = sizeof( addr4->sin_addr.s_addr );
-
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
-
-            memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
-        }
-        else
-        {
-            struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr;
-            *ip_len = sizeof( addr6->sin6_addr.s6_addr );
-
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
-
-            memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
-        }
-    }
-
-    return( 0 );
-}
-
-/*
- * Set the socket blocking or non-blocking
- */
-int mbedtls_net_set_block( mbedtls_net_context *ctx )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    u_long n = 0;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
-#else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) );
-#endif
-}
-
-int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
-{
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-    u_long n = 1;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
-#else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) );
-#endif
-}
-
-/*
- * Check if data is available on the socket
- */
-
-int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    struct timeval tv;
-
-    fd_set read_fds;
-    fd_set write_fds;
-
-    int fd = ctx->fd;
-
-    ret = check_fd( fd, 1 );
-    if( ret != 0 )
-        return( ret );
-
-#if defined(__has_feature)
-#if __has_feature(memory_sanitizer)
-    /* Ensure that memory sanitizers consider read_fds and write_fds as
-     * initialized even on platforms such as Glibc/x86_64 where FD_ZERO
-     * is implemented in assembly. */
-    memset( &read_fds, 0, sizeof( read_fds ) );
-    memset( &write_fds, 0, sizeof( write_fds ) );
-#endif
-#endif
-
-    FD_ZERO( &read_fds );
-    if( rw & MBEDTLS_NET_POLL_READ )
-    {
-        rw &= ~MBEDTLS_NET_POLL_READ;
-        FD_SET( fd, &read_fds );
-    }
-
-    FD_ZERO( &write_fds );
-    if( rw & MBEDTLS_NET_POLL_WRITE )
-    {
-        rw &= ~MBEDTLS_NET_POLL_WRITE;
-        FD_SET( fd, &write_fds );
-    }
-
-    if( rw != 0 )
-        return( MBEDTLS_ERR_NET_BAD_INPUT_DATA );
-
-    tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
-
-    do
-    {
-        ret = select( fd + 1, &read_fds, &write_fds, NULL,
-                      timeout == (uint32_t) -1 ? NULL : &tv );
-    }
-    while( IS_EINTR( ret ) );
-
-    if( ret < 0 )
-        return( MBEDTLS_ERR_NET_POLL_FAILED );
-
-    ret = 0;
-    if( FD_ISSET( fd, &read_fds ) )
-        ret |= MBEDTLS_NET_POLL_READ;
-    if( FD_ISSET( fd, &write_fds ) )
-        ret |= MBEDTLS_NET_POLL_WRITE;
-
-    return( ret );
-}
-
-/*
- * Portable usleep helper
- */
-void mbedtls_net_usleep( unsigned long usec )
-{
-#if defined(_WIN32)
-    Sleep( ( usec + 999 ) / 1000 );
-#else
-    struct timeval tv;
-    tv.tv_sec  = usec / 1000000;
-#if defined(__unix__) || defined(__unix) || \
-    ( defined(__APPLE__) && defined(__MACH__) )
-    tv.tv_usec = (suseconds_t) usec % 1000000;
-#else
-    tv.tv_usec = usec % 1000000;
-#endif
-    select( 0, NULL, NULL, NULL, &tv );
-#endif
-}
-
-/*
- * Read at most 'len' characters
- */
-int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    ret = check_fd( fd, 0 );
-    if( ret != 0 )
-        return( ret );
-
-    ret = (int) read( fd, buf, len );
-
-    if( ret < 0 )
-    {
-        if( net_would_block( ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-#else
-        if( errno == EPIPE || errno == ECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#endif
-
-        return( MBEDTLS_ERR_NET_RECV_FAILED );
-    }
-
-    return( ret );
-}
-
-/*
- * Read at most 'len' characters, blocking for at most 'timeout' ms
- */
-int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
-                              size_t len, uint32_t timeout )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    struct timeval tv;
-    fd_set read_fds;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    ret = check_fd( fd, 1 );
-    if( ret != 0 )
-        return( ret );
-
-    FD_ZERO( &read_fds );
-    FD_SET( fd, &read_fds );
-
-    tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
-
-    ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
-
-    /* Zero fds ready means we timed out */
-    if( ret == 0 )
-        return( MBEDTLS_ERR_SSL_TIMEOUT );
-
-    if( ret < 0 )
-    {
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAEINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#else
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_READ );
-#endif
-
-        return( MBEDTLS_ERR_NET_RECV_FAILED );
-    }
-
-    /* This call will not block */
-    return( mbedtls_net_recv( ctx, buf, len ) );
-}
-
-/*
- * Write at most 'len' characters
- */
-int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    int fd = ((mbedtls_net_context *) ctx)->fd;
-
-    ret = check_fd( fd, 0 );
-    if( ret != 0 )
-        return( ret );
-
-    ret = (int) write( fd, buf, len );
-
-    if( ret < 0 )
-    {
-        if( net_would_block( ctx ) != 0 )
-            return( MBEDTLS_ERR_SSL_WANT_WRITE );
-
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
-    !defined(EFI32)
-        if( WSAGetLastError() == WSAECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-#else
-        if( errno == EPIPE || errno == ECONNRESET )
-            return( MBEDTLS_ERR_NET_CONN_RESET );
-
-        if( errno == EINTR )
-            return( MBEDTLS_ERR_SSL_WANT_WRITE );
-#endif
-
-        return( MBEDTLS_ERR_NET_SEND_FAILED );
-    }
-
-    return( ret );
-}
-
-/*
- * Close the connection
- */
-void mbedtls_net_close( mbedtls_net_context *ctx )
-{
-    if( ctx->fd == -1 )
-        return;
-
-    close( ctx->fd );
-
-    ctx->fd = -1;
-}
-
-/*
- * Gracefully close the connection
- */
-void mbedtls_net_free( mbedtls_net_context *ctx )
-{
-    if( ctx->fd == -1 )
-        return;
-
-    shutdown( ctx->fd, 2 );
-    close( ctx->fd );
-
-    ctx->fd = -1;
-}
-
-#endif /* MBEDTLS_NET_C */