static USBDevice *usb_msd_init(const char *filename) { static int nr=0; char id[8]; QemuOpts *opts; DriveInfo *dinfo; USBDevice *dev; int fatal_error; const char *p1; char fmt[32]; /* parse -usbdevice disk: syntax into drive opts */ snprintf(id, sizeof(id), "usb%d", nr++); opts = qemu_opts_create(&qemu_drive_opts, id, 0); p1 = strchr(filename, ':'); if (p1++) { const char *p2; if (strstart(filename, "format=", &p2)) { int len = MIN(p1 - p2, sizeof(fmt)); pstrcpy(fmt, len, p2); qemu_opt_set(opts, "format", fmt); } else if (*filename != ':') { printf("unrecognized USB mass-storage option %s\n", filename); filename = p1; if (!*filename) { printf("block device specification needed\n"); qemu_opt_set(opts, "file", filename); qemu_opt_set(opts, "if", "none"); /* create host drive */ dinfo = drive_init(opts, NULL, &fatal_error); if (!dinfo) { qemu_opts_del(opts); /* create guest device */ dev = usb_create(NULL /* FIXME */, "usb-storage"); qdev_prop_set_drive(&dev->qdev, "drive", dinfo); if (qdev_init(&dev->qdev) < 0) return dev;