- for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
- for(; p >= stext && *p != '\n'; --p);
- if(p > stext)
- strncpy(stext, p + 1, sizeof stext);
+ stext[offset + r] = '\0';
+ for(p = stext; *p && *p != '\n'; p++);
+ if(*p == '\n') {
+ *p = '\0';
+ offset = 0;
+ }
+ else
+ offset = (offset + r < len - 1) ? offset + r : 0;