#include "substdio.h"#include "stralloc.h"#include "byte.h"#include "getln.h"int getln2(ss,sa,cont,clen,sep)register substdio *ss;register stralloc *sa;/*@out@*/char **cont;/*@out@*/unsigned int *clen;int sep;{  register char *x;  register unsigned int i;  int n;   if (!stralloc_ready(sa,0)) return -1;  sa->len = 0;   for (;;) {    n = substdio_feed(ss);    if (n < 0) return -1;    if (n == 0) { *clen = 0; return 0; }    x = substdio_PEEK(ss);    i = byte_chr(x,n,sep);    if (i < n) { substdio_SEEK(ss,*clen = i + 1); *cont = x; return 0; }    if (!stralloc_readyplus(sa,n)) return -1;    i = sa->len;    sa->len = i + substdio_get(ss,sa->s + i,n);  }}