static int do_child(void *vargv)
{
int ret;
char **argv = (char **)vargv;
/* Assume we want to become root */
if (!lxc_switch_uid_gid(0, 0))
return -1;
if (!lxc_setgroups(0, NULL))
return -1;
ret = unshare(CLONE_NEWNS);
if (ret < 0) {
CMD_SYSERROR("Failed to unshare mount namespace");
return -1;
}
if (detect_shared_rootfs()) {
ret = mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL);
if (ret < 0) {
CMD_SYSINFO("Failed to make \"/\" rslave");
return -1;
}
}
execvp(argv[0], argv);
CMD_SYSERROR("Failed to execute \"%s\"", argv[0]);
return -1;
}
int lxc_rsync_delta(struct rsync_data_char *data)
{
int ret;
ret = lxc_switch_uid_gid(0, 0);
if (ret < 0)
return -1;
ret = lxc_setgroups(0, NULL);
if (ret < 0)
return -1;
ret = lxc_rsync_exec(data->src, data->dest);
if (ret < 0) {
ERROR("Failed to rsync from \"%s\" into \"%s\"", data->src,
data->dest);
return -1;
}
return 0;
}