darwinssl: don't use arc4random_buf
Re-wrote Curl_darwinssl_random() to not use arc4random_buf() because the
function is not available prior to iOS 4.3 and OS X 10.7.
diff --git a/lib/curl_darwinssl.c b/lib/curl_darwinssl.c
index 5a2bcf5..893a6fc 100644
--- a/lib/curl_darwinssl.c
+++ b/lib/curl_darwinssl.c
@@ -835,8 +835,19 @@
unsigned char *entropy,
size_t length)
{
+ /* arc4random_buf() isn't available on cats older than Lion, so let's
+ do this manually for the benefit of the older cats. */
+ size_t i;
+ u_int32_t random = 0;
+
+ for(i = 0 ; i < length ; i++) {
+ if(i % sizeof(u_int32_t) == 0)
+ random = arc4random();
+ entropy[i] = random & 0xFF;
+ random >>= 8;
+ }
+ i = random = 0;
(void)data;
- arc4random_buf(entropy, length);
}
void Curl_darwinssl_md5sum(unsigned char *tmp, /* input */
