From 0710f3c93cb530bb52274e501002c2a3c6254080 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Mon, 9 Dec 2013 21:17:57 +0000
Subject: [PATCH] Move PRNG seeding function to the util set.

---
 src/main.c | 16 ++--------------
 src/util.c | 29 +++++++++++++++++++++++++++++
 src/util.h | 12 ++----------
 3 files changed, 33 insertions(+), 24 deletions(-)

diff --git a/src/main.c b/src/main.c
index 11da41921..7bbe63199 100644
--- a/src/main.c
+++ b/src/main.c
@@ -991,10 +991,6 @@ main (gint argc, gchar **argv, gchar **env)
 	GList                           *l;
 	worker_t                       **pworker;
 	GQuark                           type;
-#ifdef HAVE_OPENSSL
-	gchar                            rand_bytes[sizeof (guint32)];
-	guint32                          rand_seed;
-#endif
 
 #ifdef HAVE_SA_SIGINFO
 	signals_info = g_queue_new ();
@@ -1049,21 +1045,13 @@ main (gint argc, gchar **argv, gchar **env)
 #ifdef HAVE_OPENSSL
 	ERR_load_crypto_strings ();
 
-	/* Init random generator */
-	if (RAND_bytes (rand_bytes, sizeof (rand_bytes)) != 1) {
-		msg_err ("cannot seed random generator using openssl: %s, using time", ERR_error_string (ERR_get_error (), NULL));
-		g_random_set_seed (time (NULL));
-	}
-	else {
-		memcpy (&rand_seed, rand_bytes, sizeof (guint32));
-		g_random_set_seed (rand_seed);
-	}
-
 	OpenSSL_add_all_algorithms ();
 	OpenSSL_add_all_digests ();
 	OpenSSL_add_all_ciphers ();
 #endif
 
+	rspamd_prng_seed ();
+
 	/* First set logger to console logger */
 	rspamd_set_logger (RSPAMD_LOG_CONSOLE, type, rspamd_main);
 	(void)open_log (rspamd_main->logger);
diff --git a/src/util.c b/src/util.c
index bc2206579..53d73b53a 100644
--- a/src/util.c
+++ b/src/util.c
@@ -31,6 +31,11 @@
 #include "filter.h"
 #include "message.h"
 
+#ifdef HAVE_OPENSSL
+#include <openssl/rand.h>
+#include <openssl/err.h>
+#endif
+
 /* Check log messages intensity once per minute */
 #define CHECK_TIME 60
 /* More than 2 log messages per second */
@@ -2386,6 +2391,30 @@ restart:
 	return p - buf;
 #endif
 }
+
+void
+rspamd_prng_seed (void)
+{
+	guint32                          rand_seed = 0;
+#ifdef HAVE_OPENSSL
+	gchar                            rand_bytes[sizeof (guint32)];
+
+	/* Init random generator */
+	if (RAND_bytes (rand_bytes, sizeof (rand_bytes)) != 1) {
+		msg_err ("cannot seed random generator using openssl: %s, using time",
+				ERR_error_string (ERR_get_error (), NULL));
+		rand_seed = time (NULL);
+	}
+	else {
+		memcpy (&rand_seed, rand_bytes, sizeof (guint32));
+	}
+#else
+	rand_seed = time (NULL);
+#endif
+
+	g_random_set_seed (rand_seed);
+}
+
 /*
  * vi:ts=4
  */
diff --git a/src/util.h b/src/util.h
index f2b7132af..4edf5cb95 100644
--- a/src/util.h
+++ b/src/util.h
@@ -440,16 +440,8 @@ time_t parse_http_date (const gchar *header, gsize len);
 gint rspamd_read_passphrase (gchar *buf, gint size, gint rwflag, gpointer key);
 
 /**
- * Expand path that may contain configuration variables:
- * $CONFDIR - configuration directory
- * $RUNDIR - local states directory
- * $DBDIR - databases dir
- * $LOGDIR - logs dir
- * $PLUGINSDIR - plugins dir
- * $PREFIX - installation prefix
- * $VERSION - rspamd version
- * @param pool to use
- * @param path path to expand
+ * Seed glib prng using openssl if possible
  */
+void rspamd_prng_seed (void);
 
 #endif
-- 
2.39.5