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Provide better error message on failed RAND_bytes call

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This commit is contained in:
Ondřej Surý 2018-05-22 12:00:00 +02:00
parent f6c213c87d
commit 88631dad8f
1 changed files with 4 additions and 1 deletions
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5
lib/isc/random.c
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@ -36,6 +36,7 @@
#ifdef OPENSSL
#include <openssl/rand.h>
#include <openssl/err.h>
#endif /* ifdef OPENSSL */
#ifdef PKCS11CRYPTO
@ -164,7 +165,9 @@ isc_random_buf(void *buf, size_t buflen)
/* Use crypto library as fallback when no other CSPRNG is available */
# if defined(OPENSSL)
RUNTIME_CHECK(RAND_bytes(buf, buflen) < 1);
if (RAND_bytes(buf, buflen) < 1) {
FATAL_ERROR(__FILE__, __LINE__, "FATAL: RAND_bytes(): %s\n", ERR_error_string(ERR_get_error(), NULL));
}
# elif defined(PKCS11CRYPTO)
RUNTIME_CHECK(pk11_rand_bytes(buf, buflen) == ISC_R_SUCCESS);
# endif /* if defined(HAVE_ARC4RANDOM_BUF) */