Mark McLoughlin wrote:

+static int +qemudGenerateRandomBytes(unsigned char *buf, + int buflen) +{ + int fd; + + if ((fd = open("/dev/urandom", O_RDONLY)) < 0) + return errno; + + while (buflen > 0) { + int n; + + if ((n = read(fd, buf, buflen)) <= 0) { + if (errno == EINTR) + continue; + close(fd); + return n < 0 ? errno : ENODATA; + } + + buf += n; + buflen -= n; + } + + close(fd); + + return 0; +}

This function would actually be quite useful as a generally available function. In the remote patch I have added the following to configure.in: dnl /dev/urandom AC_CHECK_FILES([/dev/urandom]) and then in C code I can write: #if HAVE__DEV_URANDOM /* NB double underscore */ // random blah blah #else // pseudorandom blah blah #endif Rich. -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 "[Negative numbers] darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple" (Francis Maseres FRS, mathematician, 1759)