components/mbedtls: modify MBEDTLS net feature

modify get the connection's 'errno' info by calling getsockopt function.

diff --git a/components/mbedtls/port/net.c b/components/mbedtls/port/net.c
index f712d9a651115ac6ede0f7b81111748640c783ae..61162a78e2cdb3d4659e145c2b563b2df9c6ca4b 100644 (file)
--- a/components/mbedtls/port/net.c
+++ b/components/mbedtls/port/net.c
@@ -68,6 +68,14 @@ static int net_prepare( void )
     return( 0 );
 }
 
+static int mbedtls_net_errno(int fd)
+{
+       int sock_errno = 0; 
+       u32_t optlen = sizeof(sock_errno); 
+       getsockopt(fd, SOL_SOCKET, SO_ERROR, &sock_errno, &optlen); 
+       return sock_errno;
+}
+
 /*
  * Initialize a context
  */
@@ -225,8 +233,8 @@ static int net_would_block( const mbedtls_net_context *ctx )
     if( ( fcntl( ctx->fd, F_GETFL, 0) & O_NONBLOCK ) != O_NONBLOCK )
         return( 0 );
 
-       int error = 0;
-       get_errno(ctx->fd, &error);
+       int error = mbedtls_net_errno(ctx->fd);
+       
     switch( error )
     {
 #if defined EAGAIN
@@ -393,7 +401,7 @@ int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
     int ret;
     int fd = ((mbedtls_net_context *) ctx)->fd;
     int error = 0;
-       get_errno(fd, &error);
+       
     if( fd < 0 )
         return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
 
@@ -404,6 +412,7 @@ int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
         if( net_would_block( ctx ) != 0 )
             return( MBEDTLS_ERR_SSL_WANT_READ );
 
+               error = mbedtls_net_errno(fd);
 #if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
     !defined(EFI32)
         if( WSAGetLastError() == WSAECONNRESET )
@@ -475,7 +484,6 @@ int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
     int fd = ((mbedtls_net_context *) ctx)->fd;
 
        int error = 0;
-       get_errno(fd, &error);
 
     if( fd < 0 )
         return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
@@ -487,6 +495,7 @@ int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
         if( net_would_block( ctx ) != 0 )
             return( MBEDTLS_ERR_SSL_WANT_WRITE );
 
+               error = mbedtls_net_errno(fd);
 #if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
     !defined(EFI32)
         if( WSAGetLastError() == WSAECONNRESET )