On Wed, Nov 04, 2015 at 02:38:43PM +0000, Jean-Pierre Ribeauville wrote:
Hi,
I' trying to read datas sent by my KVM host within the Guest. Host send these datas trough a channel UNIX type , by using AF_UNIX socket stuff.
If i try to retrive the datas by using such type of thing in the Guest :
#define NAME "/dev/virtio-ports/agent"
sock = socket(AF_UNIX, SOCK_STREAM, 0); 12 if (sock < 0) { 13 perror("opening stream socket"); 14 exit(1); 15 } 16 server.sun_family = AF_UNIX; 17 strcpy(server.sun_path, NAME); 18 if (bind(sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un))) { 19 perror("binding stream socket"); 20 exit(1); 21 }
I got ""binding stream socket Address already in use" when trying to bind the socket .
shouldn't you conect() instead of bind() ? Of course, open() should write as well.
But If I use such kind of thing :
fd = open("/dev/virtio-ports/agent", O_RDWR | O_NONBLOCK); ssize_t size = read(fd, &rcv_buffer, 100); if(size >0) printf("Read length(%d) %s\n", size, rcv_buffer);
It works fine.
Is there any chance to be able to use socket stuff on Guest side or is there anything I misunderstand?
Thanks for help.
J.P.
J.P. Ribeauville
P: +33.(0).1.47.17.20.49 . Puteaux 3 Etage 5 Bureau 4
jpribeauville@axway.com<mailto:jpribeauville@axway.com> http://www.axway.com<http://www.axway.com/>
P Pensez à l'environnement avant d'imprimer.
_______________________________________________ libvirt-users mailing list libvirt-users@redhat.com https://www.redhat.com/mailman/listinfo/libvirt-users