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/* ISC license. */
#include <sys/uio.h>
#include <errno.h>
#include <skalibs/buffer.h>
#include <skalibs/siovec.h>
#include <skalibs/stralloc.h>
#include <skalibs/skamisc.h>
int skagetlnmaxsep (buffer *b, stralloc *sa, size_t max, char const *sep, size_t seplen)
{
size_t start = sa->len ;
for (;;)
{
struct iovec v[2] ;
size_t pos ;
int r ;
buffer_rpeek(b, v) ;
pos = siovec_bytein(v, 2, sep, seplen) ;
r = pos < buffer_len(b) ; pos += r ;
if (!stralloc_readyplus(sa, pos)) return -1 ;
buffer_getnofill(b, sa->s + sa->len, pos) ; sa->len += pos ;
if (r) return 1 ;
if (sa->len - start >= max) return (errno = EMSGSIZE, -1) ;
r = buffer_fill(b) ;
if (r < 0) return r ;
if (!r) return (sa->s && (sa->len > start)) ? (errno = EPIPE, -1) : 0 ;
}
}
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