diff --git a/library/net_sockets.c b/library/net_sockets.c
index b2cab50..bdd82ac 100644
--- a/library/net_sockets.c
+++ b/library/net_sockets.c
@@ -47,7 +47,7 @@
 #if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
     !defined(EFI32)
 
-#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
+#define IS_EINTR(ret) ((ret) == WSAEINTR)
 
 #if !defined(_WIN32_WINNT)
 /* Enables getaddrinfo() & Co */
@@ -70,8 +70,8 @@
 #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 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;
@@ -89,7 +89,7 @@
 #include <netdb.h>
 #include <errno.h>
 
-#define IS_EINTR( ret ) ( ( ret ) == EINTR )
+#define IS_EINTR(ret) ((ret) == EINTR)
 
 #endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
 
@@ -112,25 +112,25 @@
 /*
  * Prepare for using the sockets interface
  */
-static int net_prepare( void )
+static int net_prepare(void)
 {
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
+#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 );
+    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 );
+    signal(SIGPIPE, SIG_IGN);
 #endif
 #endif
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -138,10 +138,11 @@
  * 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 )
+static int check_fd(int fd, int for_select)
 {
-    if( fd < 0 )
-        return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
+    if (fd < 0) {
+        return MBEDTLS_ERR_NET_INVALID_CONTEXT;
+    }
 
 #if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
     !defined(EFI32)
@@ -151,17 +152,18 @@
      * 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 );
+    if (for_select && fd >= FD_SETSIZE) {
+        return MBEDTLS_ERR_NET_POLL_FAILED;
+    }
 #endif
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Initialize a context
  */
-void mbedtls_net_init( mbedtls_net_context *ctx )
+void mbedtls_net_init(mbedtls_net_context *ctx)
 {
     ctx->fd = -1;
 }
@@ -169,107 +171,103 @@
 /*
  * 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 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 );
+    if ((ret = net_prepare()) != 0) {
+        return ret;
+    }
 
     /* Do name resolution with both IPv6 and IPv4 */
-    memset( &hints, 0, sizeof( hints ) );
+    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 );
+    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 )
-        {
+    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 )
-        {
+        if (connect(ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen) == 0) {
             ret = 0;
             break;
         }
 
-        close( ctx->fd );
+        close(ctx->fd);
         ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
     }
 
-    freeaddrinfo( addr_list );
+    freeaddrinfo(addr_list);
 
-    return( ret );
+    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 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 );
+    if ((ret = net_prepare()) != 0) {
+        return ret;
+    }
 
     /* Bind to IPv6 and/or IPv4, but only in the desired protocol */
-    memset( &hints, 0, sizeof( hints ) );
+    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 )
+    if (bind_ip == NULL) {
         hints.ai_flags = AI_PASSIVE;
+    }
 
-    if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 )
-        return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
+    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 )
-        {
+    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 );
+        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 );
+        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 );
+        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;
             }
@@ -280,22 +278,22 @@
         break;
     }
 
-    freeaddrinfo( addr_list );
+    freeaddrinfo(addr_list);
 
-    return( ret );
+    return ret;
 
 }
 
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
+#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 )
+static int net_would_block(const mbedtls_net_context *ctx)
 {
     ((void) ctx);
-    return( WSAGetLastError() == WSAEWOULDBLOCK );
+    return WSAGetLastError() == WSAEWOULDBLOCK;
 }
 #else
 /*
@@ -304,39 +302,37 @@
  *
  * Note: on a blocking socket this function always returns 0!
  */
-static int net_would_block( const mbedtls_net_context *ctx )
+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 )
-    {
+    if ((fcntl(ctx->fd, F_GETFL) & O_NONBLOCK) != O_NONBLOCK) {
         errno = err;
-        return( 0 );
+        return 0;
     }
 
-    switch( errno = err )
-    {
+    switch (errno = err) {
 #if defined EAGAIN
         case EAGAIN:
 #endif
 #if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
         case EWOULDBLOCK:
 #endif
-            return( 1 );
+    return 1;
     }
-    return( 0 );
+    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 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;
@@ -346,132 +342,123 @@
 #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 );
+    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 );
+    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 (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 )
-    {
+    if (type == SOCK_STREAM) {
         /* TCP: actual accept() */
-        ret = client_ctx->fd = (int) accept( bind_ctx->fd,
-                                             (struct sockaddr *) &client_addr, &n );
-    }
-    else
-    {
+        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 );
+        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 )
-        {
+        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 );
+    if (ret < 0) {
+        if (net_would_block(bind_ctx) != 0) {
+            return MBEDTLS_ERR_SSL_WANT_READ;
+        }
 
-        return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
+        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 )
-    {
+    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 );
+        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 );
+        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 (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 )
-        {
+    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 );
+            *ip_len = sizeof(addr4->sin_addr.s_addr);
 
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
+            if (buf_size < *ip_len) {
+                return MBEDTLS_ERR_NET_BUFFER_TOO_SMALL;
+            }
 
-            memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
-        }
-        else
-        {
+            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 );
+            *ip_len = sizeof(addr6->sin6_addr.s6_addr);
 
-            if( buf_size < *ip_len )
-                return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
+            if (buf_size < *ip_len) {
+                return MBEDTLS_ERR_NET_BUFFER_TOO_SMALL;
+            }
 
-            memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
+            memcpy(client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
         }
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Set the socket blocking or non-blocking
  */
-int mbedtls_net_set_block( mbedtls_net_context *ctx )
+int mbedtls_net_set_block(mbedtls_net_context *ctx)
 {
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
+#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
     !defined(EFI32)
     u_long n = 0;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
+    return ioctlsocket(ctx->fd, FIONBIO, &n);
 #else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) );
+    return fcntl(ctx->fd, F_SETFL, fcntl(ctx->fd, F_GETFL) & ~O_NONBLOCK);
 #endif
 }
 
-int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
+int mbedtls_net_set_nonblock(mbedtls_net_context *ctx)
 {
-#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
+#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
     !defined(EFI32)
     u_long n = 1;
-    return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
+    return ioctlsocket(ctx->fd, FIONBIO, &n);
 #else
-    return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) );
+    return fcntl(ctx->fd, F_SETFL, fcntl(ctx->fd, F_GETFL) | O_NONBLOCK);
 #endif
 }
 
@@ -479,7 +466,7 @@
  * Check if data is available on the socket
  */
 
-int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
+int mbedtls_net_poll(mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     struct timeval tv;
@@ -489,207 +476,220 @@
 
     int fd = ctx->fd;
 
-    ret = check_fd( fd, 1 );
-    if( ret != 0 )
-        return( ret );
+    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 ) );
+    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 )
-    {
+    FD_ZERO(&read_fds);
+    if (rw & MBEDTLS_NET_POLL_READ) {
         rw &= ~MBEDTLS_NET_POLL_READ;
-        FD_SET( fd, &read_fds );
+        FD_SET(fd, &read_fds);
     }
 
-    FD_ZERO( &write_fds );
-    if( rw & MBEDTLS_NET_POLL_WRITE )
-    {
+    FD_ZERO(&write_fds);
+    if (rw & MBEDTLS_NET_POLL_WRITE) {
         rw &= ~MBEDTLS_NET_POLL_WRITE;
-        FD_SET( fd, &write_fds );
+        FD_SET(fd, &write_fds);
     }
 
-    if( rw != 0 )
-        return( MBEDTLS_ERR_NET_BAD_INPUT_DATA );
+    if (rw != 0) {
+        return MBEDTLS_ERR_NET_BAD_INPUT_DATA;
+    }
 
     tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
+    tv.tv_usec = (timeout % 1000) * 1000;
 
-    do
-    {
-        ret = select( fd + 1, &read_fds, &write_fds, NULL,
-                      timeout == (uint32_t) -1 ? NULL : &tv );
+    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;
     }
-    while( IS_EINTR( ret ) );
-
-    if( ret < 0 )
-        return( MBEDTLS_ERR_NET_POLL_FAILED );
 
     ret = 0;
-    if( FD_ISSET( fd, &read_fds ) )
+    if (FD_ISSET(fd, &read_fds)) {
         ret |= MBEDTLS_NET_POLL_READ;
-    if( FD_ISSET( fd, &write_fds ) )
+    }
+    if (FD_ISSET(fd, &write_fds)) {
         ret |= MBEDTLS_NET_POLL_WRITE;
+    }
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Portable usleep helper
  */
-void mbedtls_net_usleep( unsigned long usec )
+void mbedtls_net_usleep(unsigned long usec)
 {
 #if defined(_WIN32)
-    Sleep( ( usec + 999 ) / 1000 );
+    Sleep((usec + 999) / 1000);
 #else
     struct timeval tv;
     tv.tv_sec  = usec / 1000000;
 #if defined(__unix__) || defined(__unix) || \
-    ( defined(__APPLE__) && defined(__MACH__) )
+    (defined(__APPLE__) && defined(__MACH__))
     tv.tv_usec = (suseconds_t) usec % 1000000;
 #else
     tv.tv_usec = usec % 1000000;
 #endif
-    select( 0, NULL, NULL, NULL, &tv );
+    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 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 );
+    ret = check_fd(fd, 0);
+    if (ret != 0) {
+        return ret;
     }
 
-    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 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 );
+    ret = check_fd(fd, 1);
+    if (ret != 0) {
+        return ret;
+    }
 
-    FD_ZERO( &read_fds );
-    FD_SET( fd, &read_fds );
+    FD_ZERO(&read_fds);
+    FD_SET(fd, &read_fds);
 
     tv.tv_sec  = timeout / 1000;
-    tv.tv_usec = ( timeout % 1000 ) * 1000;
+    tv.tv_usec = (timeout % 1000) * 1000;
 
-    ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
+    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) {
+        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 );
+    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 );
+        if (errno == EINTR) {
+            return MBEDTLS_ERR_SSL_WANT_READ;
+        }
 #endif
 
-        return( MBEDTLS_ERR_NET_RECV_FAILED );
+        return MBEDTLS_ERR_NET_RECV_FAILED;
     }
 
     /* This call will not block */
-    return( mbedtls_net_recv( ctx, buf, len ) );
+    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 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 );
+    ret = check_fd(fd, 0);
+    if (ret != 0) {
+        return ret;
     }
 
-    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 )
+void mbedtls_net_close(mbedtls_net_context *ctx)
 {
-    if( ctx->fd == -1 )
+    if (ctx->fd == -1) {
         return;
+    }
 
-    close( ctx->fd );
+    close(ctx->fd);
 
     ctx->fd = -1;
 }
@@ -697,13 +697,14 @@
 /*
  * Gracefully close the connection
  */
-void mbedtls_net_free( mbedtls_net_context *ctx )
+void mbedtls_net_free(mbedtls_net_context *ctx)
 {
-    if( ctx->fd == -1 )
+    if (ctx->fd == -1) {
         return;
+    }
 
-    shutdown( ctx->fd, 2 );
-    close( ctx->fd );
+    shutdown(ctx->fd, 2);
+    close(ctx->fd);
 
     ctx->fd = -1;
 }