Archipelago » qemu

static int store_dev_info(int domid, CharDriverState *cs, const char *string)

{

    struct xs_handle *xs = NULL;

    char *path = NULL;

    char *newpath = NULL;

    char *pts = NULL;

    int ret = -1;

    /* Only continue if we're talking to a pty. */

    if (strncmp(cs->filename, "pty:", 4)) {

        return 0;

    }

    pts = cs->filename + 4;

    /* We now have everything we need to set the xenstore entry. */

    xs = xs_open(0);

    if (xs == NULL) {

        fprintf(stderr, "Could not contact XenStore\n");

        goto out;

    }

    path = xs_get_domain_path(xs, domid);

    if (path == NULL) {

        fprintf(stderr, "xs_get_domain_path() error\n");

        goto out;

    }

    newpath = realloc(path, (strlen(path) + strlen(string) +

                strlen("/tty") + 1));

    if (newpath == NULL) {

        fprintf(stderr, "realloc error\n");

        goto out;

    }

    path = newpath;

    strcat(path, string);

    strcat(path, "/tty");

    if (!xs_write(xs, XBT_NULL, path, pts, strlen(pts))) {

        fprintf(stderr, "xs_write for '%s' fail", string);

        goto out;

    }

    ret = 0;

out:

    free(path);

    xs_close(xs);

    return ret;

}

void xenstore_store_pv_console_info(int i, CharDriverState *chr)

{

    if (i == 0) {

        store_dev_info(xen_domid, chr, "/console");

    } else {

        char buf[32];

        snprintf(buf, sizeof(buf), "/device/console/%d", i);

        store_dev_info(xen_domid, chr, buf);

    }

}