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VMS: only use the high precision on VMS v8.4 and up

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It simply isn't available on older versions.

Issue submitted by Mark Daniels

Fixes #7229

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7230)

(cherry picked from commit d6d6aa3521e207c2727bbd1e5c97772502d15739)
This commit is contained in:
Richard Levitte 2018-09-15 14:59:06 +02:00 committed by Richard Levitte
parent f09877c12c
commit cd92d1fdd3
1 changed files with 8 additions and 3 deletions
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11
crypto/rand/rand_vms.c
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@ -478,13 +478,18 @@ int rand_pool_add_nonce_data(RAND_POOL *pool)
} data = { 0 }; } data = { 0 };
/* /*
* Add process id, thread id, and a high resolution timestamp to * Add process id, thread id, and a high resolution timestamp
* ensure that the nonce is unique whith high probability for * (where available, which is OpenVMS v8.4 and up) to ensure that
* different process instances. * the nonce is unique whith high probability for different process
* instances.
*/ */
data.pid = getpid(); data.pid = getpid();
data.tid = CRYPTO_THREAD_get_current_id(); data.tid = CRYPTO_THREAD_get_current_id();
#if __CRTL_VER >= 80400000
sys$gettim_prec(&data.time); sys$gettim_prec(&data.time);
#else
sys$gettim((void*)&data.time);
#endif
return rand_pool_add(pool, (unsigned char *)&data, sizeof(data), 0); return rand_pool_add(pool, (unsigned char *)&data, sizeof(data), 0);
} }