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w32: Make sure DEP is enabled.

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* common/init.c (_init_common_subsystems): Test and set the DEP
Policy.
--

Note that this change will now definitely require Windows XP SP3.
This commit is contained in:
Werner Koch 2023-01-11 10:04:08 +01:00
parent 17b985787e
commit f618731f7e
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GPG Key ID: E3FDFF218E45B72B
1 changed files with 18 additions and 1 deletions
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19
common/init.c
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@ -30,6 +30,9 @@
#include <config.h> #include <config.h>
#ifdef HAVE_W32_SYSTEM #ifdef HAVE_W32_SYSTEM
# if _WIN32_WINNT < 0x0600
# define _WIN32_WINNT 0x0600 /* Required for SetProcessDEPPolicy. */
# endif
# ifdef HAVE_WINSOCK2_H # ifdef HAVE_WINSOCK2_H
# include <winsock2.h> # include <winsock2.h>
# endif # endif
@ -239,7 +242,21 @@ _init_common_subsystems (gpg_err_source_t errsource, int *argcp, char ***argvp)
log_set_socket_dir_cb (gnupg_socketdir); log_set_socket_dir_cb (gnupg_socketdir);
#if HAVE_W32_SYSTEM #if HAVE_W32_SYSTEM
/* For Standard Windows we use our own parser for the command line /* Make sure that Data Execution Prevention is enabled. */
if (GetSystemDEPPolicy () >= 2)
{
DWORD flags;
BOOL perm;
if (!GetProcessDEPPolicy (GetCurrentProcess (), &flags, &perm))
log_info ("error getting DEP policy: %s\n",
w32_strerror (GetLastError()));
else if (!(flags & PROCESS_DEP_ENABLE)
&& !SetProcessDEPPolicy (PROCESS_DEP_ENABLE))
log_info ("Warning: Enabling DEP failed: %s (%d,%d)\n",
w32_strerror (GetLastError ()), (int)flags, (int)perm);
}
/* On Windows we use our own parser for the command line
* so that we can return an array of utf-8 encoded strings. */ * so that we can return an array of utf-8 encoded strings. */
prepare_w32_commandline (argcp, argvp); prepare_w32_commandline (argcp, argvp);
#else #else