From 7f8ab242890b24eddac876d7489462c0e6902a9b Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Mon, 12 Dec 2022 14:39:43 +0100
Subject: [chroot] Add preload lib crap for close_range

For some reason in our chroot we get a permission denied
for close_range calls, which breaks the vmware 17 installer.
Add a shim that falls back to close instead.
---
 core/includes/chroot.inc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'core/includes')

diff --git a/core/includes/chroot.inc b/core/includes/chroot.inc
index 334cc094..7856fd19 100644
--- a/core/includes/chroot.inc
+++ b/core/includes/chroot.inc
@@ -146,9 +146,24 @@ chroot_gen_autoexec() {
 		#  system environment!                                #
 		#                                                     #
 		#######################################################
+		export LD_PRELOAD=/bla.so
 		echo "chroot started successfully."
 	EOF
 
+	# Preload bullshit for close_range
+	gcc -xc - -o "${CHROOT_MOUNTDIR}/bla.so" -shared <<-PUFF
+		#include <unistd.h>
+		int close_range(unsigned int a, unsigned int b, int c)
+		{
+			if (b - a > 1000) b = a + 1000;
+			for (unsigned int i = a; i < b; ++i) {
+				close(i);
+			}
+			return 0;
+		}
+	PUFF
+	[ -s "${CHROOT_MOUNTDIR}/bla.so" ] || exit 12
+
 	# dump the piped input to it
 	cat >> "${CHROOT_MOUNTDIR}/autoexec.bat"
 
-- 
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