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openssl-random: check return code when asking for random

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and fail appropriately if it returns error
This commit is contained in:
Daniel Stenberg 2016-12-23 15:29:01 +01:00
parent c7834ecd45
commit 00c817068e
1 changed files with 4 additions and 2 deletions
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6
lib/vtls/openssl.c
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@ -3275,6 +3275,7 @@ size_t Curl_ossl_version(char *buffer, size_t size)
int Curl_ossl_random(struct Curl_easy *data, unsigned char *entropy,
size_t length)
{
int rc;
if(data) {
if(Curl_ossl_seed(data)) /* Initiate the seed if not already done */
return 1; /* couldn't seed for some reason */
@ -3283,8 +3284,9 @@ int Curl_ossl_random(struct Curl_easy *data, unsigned char *entropy,
if(!rand_enough())
return 1;
}
RAND_bytes(entropy, curlx_uztosi(length));
return 0; /* 0 as in no problem */
/* RAND_bytes() returns 1 on success, 0 otherwise. */
rc = RAND_bytes(entropy, curlx_uztosi(length));
return rc^1;
}
void Curl_ossl_md5sum(unsigned char *tmp, /* input */