/*
* fill the input buffer, doing ascii conversions if requested
* conversions are lf -> cr,lf and cr -> cr, nul
*/
void read_ahead(PIO_CONTEXT pio_context, int convert) /*__fn__*/
{
struct bf *b;
struct tftphdr *dp;
ARGSUSED_INT(convert);
b = &bfs[nextone]; /* look at "next" buffer */
if (b->counter != BF_FREE) /* nop if not free */
return;
nextone = !nextone; /* "incr" next buffer ptr */
dp = (struct tftphdr *)b->buf;
b->counter = (int)vf_read(pio_context->virtual_fd,
(PFBYTE)&dp->th_data,
SEGSIZE);
return;
}
/*----------------------------------------------------------------------*
rtp_file_read
*----------------------------------------------------------------------*/
long rtp_file_read (RTP_HANDLE fileHandle, unsigned char * buffer, long count)
{
int result;
#ifdef RTP_DEBUG
/* ----------------------------------- */
/* Clear the error state by setting */
/* to 0. */
/* ----------------------------------- */
set_errno (0);
#endif
if ((result = vf_read((int) fileHandle, (PFBYTE) buffer, (word) count)) < 0)
{
#ifdef RTP_DEBUG
result = xn_getlasterror( );
RTP_DEBUG_OUTPUT_STR("rtp_file_read: error returned ");
RTP_DEBUG_OUTPUT_INT(result);
RTP_DEBUG_OUTPUT_STR(".\n");
#endif
return (-1);
}
return (result);
}
