next_string
str = next_string(skb);
str = next_string(skb);
str = next_string(skb);
state_str = next_string(skb);
snr = next_string(skb);
attn = next_string(skb);
for (char *s = mod->no_trim_symbol; s; s = next_string(s , &size)) {
modinfo = next_string(prev, &size);
for (p = modinfo; p; p = next_string(p, &size)) {