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/* ISC license. */
#include <sys/uio.h>
#include <stdint.h>
#include <errno.h>
#include <skalibs/uint16.h>
#include <skalibs/buffer.h>
#include <skalibs/siovec.h>
#include <skalibs/unix-timed.h>
#include <tipidee/fcgi.h>
static uint16_t putvit (tipidee_fcgi *fc, uint8_t rectype, struct iovec const *v, unsigned int n, uint16_t len, tain *stamp)
{
char hdr[8] = { 1, (char)rectype, fc->id >> 8, fc->id & 0xff, 0, 0, 0, 0 } ;
uint16_t w ;
uint16_pack_big(hdr + 4, len) ;
w = buffer_timed_put(&fc->b, hdr, 8, &fc->deadline, stamp) ;
if (w < 8) return 0 ;
return buffer_timed_putv(&fc->b, v, n, &fc->deadline, stamp) ;
}
size_t tipidee_fcgi_putv (tipidee_fcgi *fc, uint8_t rectype, struct iovec const *v, unsigned int n, tain *stamp)
{
if (!n) return 0 ;
size_t w = 0 ;
unsigned int base = 0 ;
for (unsigned int i = 0 ; i < n ; i++)
if (v[i].iov_len > 0xffffu) return (errno = EMSGSIZE, 0) ;
while (base < n)
{
size_t len = 0 ;
unsigned int i = 0 ;
uint16_t r ;
for (; base + i < n ; i++)
{
if (len + v[base + i].iov_len > 0xffffu) break ;
len += v[base + i].iov_len ;
}
r = putvit(fc, rectype, v + base, i, len, stamp) ;
w += r ;
if (r < len) break ;
base += i ;
}
return w ;
}
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