From b4cfdbbf32333f2f6cd4a38193493962e27d63dc Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 29 Sep 2014 21:36:33 +0530
Subject: [PATCH] Turn on hash randomization in the version of python bundled
 with calibre

---
 setup/installer/linux/util.c   | 1 +
 setup/installer/osx/app/util.c | 1 +
 setup/installer/windows/util.c | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/setup/installer/linux/util.c b/setup/installer/linux/util.c
index b06d6083c9..c619cec16f 100644
--- a/setup/installer/linux/util.c
+++ b/setup/installer/linux/util.c
@@ -183,6 +183,7 @@ void initialize_interpreter(int argc, char **argv, char *outr, char *errr,
     Py_NoUserSiteDirectory = 1;
     Py_VerboseFlag = 0;
     Py_DebugFlag = 0;
+    Py_HashRandomizationFlag = 1;
 
     Py_SetProgramName(exe_path);
     Py_SetPythonHome(base_dir);
diff --git a/setup/installer/osx/app/util.c b/setup/installer/osx/app/util.c
index a3dbc35d16..b8e1e360fd 100644
--- a/setup/installer/osx/app/util.c
+++ b/setup/installer/osx/app/util.c
@@ -55,6 +55,7 @@ void initialize_interpreter(const char **ENV_VARS, const char **ENV_VAR_VALS,
     Py_DontWriteBytecodeFlag = 1;
     Py_IgnoreEnvironmentFlag = 1;
     Py_NoUserSiteDirectory = 1;
+    Py_HashRandomizationFlag = 1;
 
     //Py_VerboseFlag = 1;
     //Py_DebugFlag = 1;
diff --git a/setup/installer/windows/util.c b/setup/installer/windows/util.c
index 5ed6bbce69..310938d3e0 100644
--- a/setup/installer/windows/util.c
+++ b/setup/installer/windows/util.c
@@ -319,6 +319,9 @@ void initialize_interpreter(wchar_t *outr, wchar_t *errr,
     flag = (int*)GetProcAddress(dll, "Py_NoUserSiteDirectory");
     if (!flag) ExitProcess(_show_error(L"Failed to get user_site flag", L"", 1));
     *flag = 1;
+    flag = (int*)GetProcAddress(dll, "Py_HashRandomizationFlag ");
+    if (!flag) ExitProcess(_show_error(L"Failed to get hash randomization flag", L"", 1));
+    *flag = 1;
     flag = (int*)GetProcAddress(dll, "Py_VerboseFlag");
     if (!flag) ExitProcess(_show_error(L"Failed to get verbose flag", L"", 1));
     //*flag = 1;