entropy: Avoid arithmetic on void pointer
@@ -131,6 +131,7 @@ static int getrandom_wrapper( void *buf, size_t buflen, unsigned int flags )
static int sysctl_arnd_wrapper( void *buf, size_t buflen )
{
+ unsigned char *output = buf;
int name[2];
size_t len;
@@ -140,10 +141,10 @@ static int sysctl_arnd_wrapper( void *buf, size_t buflen )
while( buflen > 0 )
{
len = buflen > 256 ? 256 : buflen;
- if( sysctl(name, 2, buf, &len, NULL, 0) == -1 )
+ if( sysctl(name, 2, output, &len, NULL, 0) == -1 )
return( -1 );
buflen -= len;
- buf += len;
+ output += len;
}
return( 0 );
}
