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/*
* Copyright (c) 2007-2009, 2014, 2016-2017 Paul Mattes.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the names of Paul Mattes nor the names of his contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY PAUL MATTES "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL PAUL MATTES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* winvers.c
* A Windows console-based 3270 Terminal Emulator
* OS version query
*/
#include "globals.h"
#include "winvers.h"
#if defined(__GNUC__) /*[*/
/* MinGW doesn't have IsWindowsVersionOrGreater(). */
BOOL IsWindowsVersionOrGreater(WORD major_version, WORD minor_version,
WORD service_pack_major)
{
OSVERSIONINFOEX version_info;
DWORDLONG condition_mask = 0;
memset(&version_info, 0, sizeof(OSVERSIONINFOEX));
version_info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
version_info.dwMajorVersion = major_version;
version_info.dwMinorVersion = minor_version;
version_info.wServicePackMajor = service_pack_major;
VER_SET_CONDITION(condition_mask, VER_MAJORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(condition_mask, VER_MINORVERSION, VER_GREATER_EQUAL);
VER_SET_CONDITION(condition_mask, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
return VerifyVersionInfo(&version_info,
VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR,
condition_mask);
}
#endif /*]*/
int
get_version_info(void)
{
/*
* Enforce our version requirements explicitly, though chances are
* missing DLL entry points will cause us to fall over long before we
* get to here.
*/
if (!IsWindowsVersionOrGreater(5, 1, 0)) {
fprintf(stderr, "Minimum supported Windows version is Windows XP "
"(NT 5.1)\n");
return -1;
}
return 0;
}
/* Returns true if running under Wine. */
bool
is_wine(void)
{
static const char *(CDECL *pwine_get_version)(void);
HMODULE hntdll = GetModuleHandle("ntdll.dll");
if (!hntdll) {
return false;
}
pwine_get_version = (void *)GetProcAddress(hntdll, "wine_get_version");
return pwine_get_version != NULL;
}
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