1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/third_party/libevent/mac-arc4random-buf.patch Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,30 @@
1.4 +--- a/evutil_rand.c 2012-08-02 10:36:53.000000000 -0500
1.5 ++++ b/evutil_rand.c 2013-02-20 13:01:45.000000000 -0600
1.6 +@@ -58,27 +58,16 @@ evutil_secure_rng_global_setup_locks_(co
1.7 + static void
1.8 + ev_arc4random_buf(void *buf, size_t n)
1.9 + {
1.10 + #if defined(_EVENT_HAVE_ARC4RANDOM_BUF) && !defined(__APPLE__)
1.11 + return arc4random_buf(buf, n);
1.12 + #else
1.13 + unsigned char *b = buf;
1.14 +
1.15 +-#if defined(_EVENT_HAVE_ARC4RANDOM_BUF)
1.16 +- /* OSX 10.7 introducd arc4random_buf, so if you build your program
1.17 +- * there, you'll get surprised when older versions of OSX fail to run.
1.18 +- * To solve this, we can check whether the function pointer is set,
1.19 +- * and fall back otherwise. (OSX does this using some linker
1.20 +- * trickery.)
1.21 +- */
1.22 +- if (arc4random_buf != NULL) {
1.23 +- return arc4random_buf(buf, n);
1.24 +- }
1.25 +-#endif
1.26 + /* Make sure that we start out with b at a 4-byte alignment; plenty
1.27 + * of CPUs care about this for 32-bit access. */
1.28 + if (n >= 4 && ((ev_uintptr_t)b) & 3) {
1.29 + ev_uint32_t u = arc4random();
1.30 + int n_bytes = 4 - (((ev_uintptr_t)b) & 3);
1.31 + memcpy(b, &u, n_bytes);
1.32 + b += n_bytes;
1.33 + n -= n_bytes;
