winhttp: Use a helper to receive data and take care of EINTR.

dlls/winhttp/net.c

@@ -150,6 +150,17 @@ static int sock_send(int fd, const void *msg, size_t len, int flags)
     return ret;
 }
 
+static int sock_recv(int fd, void *msg, size_t len, int flags)
+{
+    int ret;
+    do
+    {
+        ret = recv(fd, msg, len, flags);
+    }
+    while(ret == -1 && errno == EINTR);
+    return ret;
+}
+
 static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, WCHAR *server, DWORD security_flags )
 {
     HCERTSTORE store = cert->hCertStore;
@@ -453,7 +464,7 @@ BOOL netconn_secure_connect( netconn_t *conn, WCHAR *hostname )
             read_buf_size += 1024;
         }
 
-        size = recv(conn->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
+        size = sock_recv(conn->socket, read_buf+in_bufs[0].cbBuffer, read_buf_size-in_bufs[0].cbBuffer, 0);
         if(size < 1) {
             WARN("recv error\n");
             status = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
@@ -591,7 +602,7 @@ static BOOL read_ssl_chunk(netconn_t *conn, void *buf, SIZE_T buf_size, SIZE_T *
         heap_free(conn->extra_buf);
         conn->extra_buf = NULL;
     }else {
-        buf_len = recv(conn->socket, conn->ssl_buf+conn->extra_len, ssl_buf_size-conn->extra_len, 0);
+        buf_len = sock_recv(conn->socket, conn->ssl_buf+conn->extra_len, ssl_buf_size-conn->extra_len, 0);
         if(buf_len < 0) {
             WARN("recv failed\n");
             return FALSE;
@@ -623,7 +634,7 @@ static BOOL read_ssl_chunk(netconn_t *conn, void *buf, SIZE_T buf_size, SIZE_T *
         case SEC_E_INCOMPLETE_MESSAGE:
             assert(buf_len < ssl_buf_size);
 
-            size = recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0);
+            size = sock_recv(conn->socket, conn->ssl_buf+buf_len, ssl_buf_size-buf_len, 0);
             if(size < 1)
                 return FALSE;
 
@@ -716,7 +727,7 @@ BOOL netconn_recv( netconn_t *conn, void *buf, size_t len, int flags, int *recvd
         *recvd = size;
         return TRUE;
     }
-    if ((*recvd = recv( conn->socket, buf, len, flags )) == -1)
+    if ((*recvd = sock_recv( conn->socket, buf, len, flags )) == -1)
     {
         set_last_error( sock_get_error( errno ) );
         return FALSE;