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/* ISC license. */
#include <skalibs/allreadwrite.h>
#include <skalibs/randomegd.h>
unsigned int randomegd_readnb (int s, char *x, unsigned int n)
{
unsigned int w = 0 ;
while ((n - w) >= 255)
{
char c[2] = { 0x01, 0xFF } ;
register unsigned char wtmp ;
if (allwrite(s, c, 2) < 2) return w ;
if (sanitize_read(fd_read(s, c+1, 1)) < 1) return w ;
wtmp = allread(s, x + w, c[1]) ;
w += wtmp ;
if ((wtmp < (unsigned char)c[1]) || ((unsigned char)c[1] < 0xFF)) return w ;
}
if (w < n)
{
char c[2] = "\001" ;
c[1] = n - w ;
if (allwrite(s, c, 2) < 2) return w ;
if (sanitize_read(fd_read(s, c+1, 1)) < 1) return w ;
w += allread(s, x + w, c[1]) ;
}
return w ;
}
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