vrealloc
p = vrealloc(ptr, size);
p = vrealloc(p, p->l + sizeof(*trns) + attrlen);
iph2->sa = vrealloc(iph2->sa, iph2->sa->l + q->l);
new = vrealloc(new, tlen + len);
result = vrealloc(result, result->l * 2);
buf = vrealloc(buf0, oldlen + tlen);
buf = vrealloc(buf0, oldlen + tlen);
if ((buf = vrealloc(buf, len + sizeof(cap))) == NULL) {
buf = vrealloc(buf0, buf0->l + tlen);
res = vrealloc(res, l + this->l);
buf = vrealloc(buf, bl + ml);
extern vchar_t *vrealloc(vchar_t *, size_t);