- strncpy(s->pwprompt, prompt, sizeof(s->pwprompt));
- s->pwprompt[prompt_len < sizeof(s->pwprompt) ?
- prompt_len : sizeof(s->pwprompt)-1] = '\0';
+ static const char trunc[] = "<prompt truncated>: ";
+ static const int prlen = sizeof(s->pwprompt) -
+ lenof(trunc);
+ if (prompt_len > prlen) {
+ memcpy(s->pwprompt, prompt, prlen);
+ strcpy(s->pwprompt + prlen, trunc);
+ } else {
+ memcpy(s->pwprompt, prompt, prompt_len);
+ s->pwprompt[prompt_len] = '\0';
+ }