c - Clamd INSTREAM checking -

i'm trying check file using clamd ninstream.

struct clam_chunk {     unsigned int fsize;     char data[1024];         };  ..............................................................................  st_data.fsize = __bswap_32(st_data.fsize); //big-endian format  {     ret = send(fd, "ninstream\n", 11, msg_nosignal);     ret = send(fd, &st_data, sizeof(st_data), msg_nosignal);     ret = send (fd,"",0,msg_nosignal); } while (ret < 0 && errno == eintr); 

i have response: "stream: ok", it's wrong, because data contains eicar-test-signature.

ping recive pong, simple scan work too.