diff options
Diffstat (limited to 'ipc/chromium/src/third_party/libevent/patches/mac-arc4random-buf.patch')
| -rw-r--r-- | ipc/chromium/src/third_party/libevent/patches/mac-arc4random-buf.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/ipc/chromium/src/third_party/libevent/patches/mac-arc4random-buf.patch b/ipc/chromium/src/third_party/libevent/patches/mac-arc4random-buf.patch new file mode 100644 index 000000000..d611585ae --- /dev/null +++ b/ipc/chromium/src/third_party/libevent/patches/mac-arc4random-buf.patch @@ -0,0 +1,30 @@ +--- a/evutil_rand.c 2012-08-02 10:36:53.000000000 -0500 ++++ b/evutil_rand.c 2013-02-20 13:01:45.000000000 -0600 +@@ -58,27 +58,16 @@ evutil_secure_rng_global_setup_locks_(co + static void + ev_arc4random_buf(void *buf, size_t n) + { + #if defined(_EVENT_HAVE_ARC4RANDOM_BUF) && !defined(__APPLE__) + return arc4random_buf(buf, n); + #else + unsigned char *b = buf; + +-#if defined(_EVENT_HAVE_ARC4RANDOM_BUF) +- /* OSX 10.7 introducd arc4random_buf, so if you build your program +- * there, you'll get surprised when older versions of OSX fail to run. +- * To solve this, we can check whether the function pointer is set, +- * and fall back otherwise. (OSX does this using some linker +- * trickery.) +- */ +- if (arc4random_buf != NULL) { +- return arc4random_buf(buf, n); +- } +-#endif + /* Make sure that we start out with b at a 4-byte alignment; plenty + * of CPUs care about this for 32-bit access. */ + if (n >= 4 && ((ev_uintptr_t)b) & 3) { + ev_uint32_t u = arc4random(); + int n_bytes = 4 - (((ev_uintptr_t)b) & 3); + memcpy(b, &u, n_bytes); + b += n_bytes; + n -= n_bytes; |