diff options
Diffstat (limited to 'mysys/my_rnd.c')
| -rw-r--r-- | mysys/my_rnd.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/mysys/my_rnd.c b/mysys/my_rnd.c index 178bcd9c539..1c8de9dd7a5 100644 --- a/mysys/my_rnd.c +++ b/mysys/my_rnd.c @@ -14,6 +14,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "mysys_priv.h" +#include <my_rnd.h> #include <m_string.h> /* @@ -53,3 +54,39 @@ double my_rnd(struct my_rnd_struct *rand_st) rand_st->seed2=(rand_st->seed1+rand_st->seed2+33) % rand_st->max_value; return (((double) rand_st->seed1)/rand_st->max_value_dbl); } + + +/** + Generate a random number using the OpenSSL/yaSSL supplied + random number generator if available. + + @param rand_st [INOUT] Structure used for number generation + only if none of the SSL libraries are + available. + + @retval Generated random number. +*/ + +double my_rnd_ssl(struct my_rnd_struct *rand_st) +{ + +#if defined(HAVE_YASSL) || defined(HAVE_OPENSSL) + int rc; + unsigned int res; + +#if defined(HAVE_YASSL) + rc= yaSSL::RAND_bytes((unsigned char *) &res, sizeof (unsigned int)); +#else + rc= RAND_bytes((unsigned char *) &res, sizeof (unsigned int)); +#endif /* HAVE_YASSL */ + + if (rc) + return (double)res / (double)UINT_MAX; +#endif /* defined(HAVE_YASSL) || defined(HAVE_OPENSSL) */ + + return my_rnd(rand_st); +} + +#ifdef __cplusplus +} +#endif |