From 820f4b1de1df1fe75be68ede5d1f3ef09520294d Mon Sep 17 00:00:00 2001
From: tg <tg@mirbsd.org>
Date: Mon, 23 May 2005 14:22:03 +0000
Subject: [PATCH] always use rand(3) on platforms without arc4random(3) and
 seed it

---
 main.c |  7 +++++--
 var.c  | 10 ++++++++--
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/main.c b/main.c
index 1a9a453..43f3e45 100644
--- a/main.c
+++ b/main.c
@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/main.c,v 1.1 2005/05/23 03:06:08 tg Exp $ */
+/**	$MirOS: src/bin/mksh/main.c,v 1.2 2005/05/23 14:22:03 tg Exp $ */
 /*	$OpenBSD: main.c,v 1.38 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: tty.c,v 1.8 2005/03/30 17:16:37 deraadt Exp $	*/
 /*	$OpenBSD: io.c,v 1.21 2005/03/30 17:16:37 deraadt Exp $	*/
@@ -10,7 +10,7 @@
 #include <ctype.h>
 #include <pwd.h>
 
-__RCSID("$MirOS: src/bin/mksh/main.c,v 1.1 2005/05/23 03:06:08 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/main.c,v 1.2 2005/05/23 14:22:03 tg Exp $");
 
 extern char **environ;
 
@@ -201,6 +201,9 @@ main(int argc, char *argv[])
 			setstr(pwd_v, current_wd, KSH_RETURN_ERROR);
 	}
 	ppid = getppid();
+#if !defined(__gnu_linux__) && !defined(__INTERIX)
+	srand((*((long *)kshname)) ^ ((long)time(NULL) * kshpid * ppid));
+#endif
 	setint(global("PPID"), (long) ppid);
 	/* setstr can't fail here */
 	if (!Flag(FSH))
diff --git a/var.c b/var.c
index 518f5ce..f013e45 100644
--- a/var.c
+++ b/var.c
@@ -1,4 +1,4 @@
-/**	$MirOS: src/bin/mksh/var.c,v 1.1 2005/05/23 03:06:10 tg Exp $ */
+/**	$MirOS: src/bin/mksh/var.c,v 1.2 2005/05/23 14:22:03 tg Exp $ */
 /*	$OpenBSD: var.c,v 1.26 2005/03/30 17:16:37 deraadt Exp $	*/
 
 #include "sh.h"
@@ -6,7 +6,7 @@
 #include <ctype.h>
 #include <time.h>
 
-__RCSID("$MirOS: src/bin/mksh/var.c,v 1.1 2005/05/23 03:06:10 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/var.c,v 1.2 2005/05/23 14:22:03 tg Exp $");
 
 /*
  * Variables
@@ -855,7 +855,11 @@ makenv(void)
  * Someone has set the srand() value, therefore from now on
  * we return values from rand() instead of arc4random()
  */
+#if !defined(__gnu_linux__) && !defined(__INTERIX)
 int use_rand = 0;
+#else
+int use_rand = 1;
+#endif
 
 /*
  * Called after a fork in parent to bump the random number generator.
@@ -915,8 +919,10 @@ getspec(struct tbl *vp)
 		vp->flag &= ~SPECIAL;
 		if (use_rand)
 			setint(vp, (long) (rand() & 0x7fff));
+#if !defined(__gnu_linux__) && !defined(__INTERIX)
 		else
 			setint(vp, (long) (arc4random() & 0x7fff));
+#endif
 		vp->flag |= SPECIAL;
 		break;
 	case V_HISTSIZE: