From 42f6e1f78e71557b7c6bee0cf77e000aa3c00f6d Mon Sep 17 00:00:00 2001
From: Ruslan Ermilov <ru@nginx.com>
Date: Thu, 4 Aug 2016 23:43:10 +0300
Subject: Always seed PRNG with PID, seconds, and milliseconds.

---
 src/os/unix/ngx_posix_init.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/os/unix/ngx_posix_init.c')

diff --git a/src/os/unix/ngx_posix_init.c b/src/os/unix/ngx_posix_init.c
index 76ed94e90..7e6e79d01 100644
--- a/src/os/unix/ngx_posix_init.c
+++ b/src/os/unix/ngx_posix_init.c
@@ -33,7 +33,8 @@ ngx_os_io_t ngx_os_io = {
 ngx_int_t
 ngx_os_init(ngx_log_t *log)
 {
-    ngx_uint_t  n;
+    ngx_time_t  *tp;
+    ngx_uint_t   n;
 
 #if (NGX_HAVE_OS_SPECIFIC_INIT)
     if (ngx_os_specific_init(log) != NGX_OK) {
@@ -76,7 +77,8 @@ ngx_os_init(ngx_log_t *log)
     ngx_inherited_nonblocking = 0;
 #endif
 
-    srandom(ngx_time());
+    tp = ngx_timeofday();
+    srandom(((unsigned) ngx_pid << 16) ^ tp->sec ^ tp->msec);
 
     return NGX_OK;
 }
-- 
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