- if (s->tail && s->tail->buflen < BUFFER_GRANULE) {
- int copylen = min(len, BUFFER_GRANULE - s->tail->buflen);
- memcpy(s->tail->buf + s->tail->buflen, buf, copylen);
- buf += copylen;
- len -= copylen;
- s->tail->buflen += copylen;
- }
- while (len > 0) {
- int grainlen = min(len, BUFFER_GRANULE);
- struct buffer *newbuf;
- newbuf = smalloc(sizeof(struct buffer));
- newbuf->bufpos = 0;
- newbuf->buflen = grainlen;
- memcpy(newbuf->buf, buf, grainlen);
- buf += grainlen;
- len -= grainlen;
- if (s->tail)
- s->tail->next = newbuf;
- else
- s->head = s->tail = newbuf;
- newbuf->next = NULL;
- s->tail = newbuf;
- }