RAIDZ_IMPL_NAME_MAX
char name[RAIDZ_IMPL_NAME_MAX]; /* Name of the implementation */
char req_name[RAIDZ_IMPL_NAME_MAX];
i = strnlen(val, RAIDZ_IMPL_NAME_MAX);
if (i == 0 || i == RAIDZ_IMPL_NAME_MAX)
strlcpy(req_name, val, RAIDZ_IMPL_NAME_MAX);