1258945Sroberto/* 2258945Sroberto * Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC") 3258945Sroberto * Copyright (C) 2002 Internet Software Consortium. 4258945Sroberto * 5258945Sroberto * Permission to use, copy, modify, and/or distribute this software for any 6258945Sroberto * purpose with or without fee is hereby granted, provided that the above 7258945Sroberto * copyright notice and this permission notice appear in all copies. 8258945Sroberto * 9258945Sroberto * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10258945Sroberto * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11258945Sroberto * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12258945Sroberto * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13258945Sroberto * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14258945Sroberto * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15258945Sroberto * PERFORMANCE OF THIS SOFTWARE. 16258945Sroberto */ 17258945Sroberto 18258945Sroberto/* $Id: win32os.c,v 1.5 2007/06/19 23:47:19 tbox Exp $ */ 19258945Sroberto 20258945Sroberto#include <windows.h> 21258945Sroberto 22258945Sroberto#include <isc/win32os.h> 23258945Sroberto 24258945Srobertostatic BOOL bInit = FALSE; 25258945Srobertostatic OSVERSIONINFOEX osVer; 26258945Sroberto 27258945Srobertostatic void 28258945Srobertoinitialize_action(void) { 29258945Sroberto BOOL bSuccess; 30258945Sroberto 31258945Sroberto if (bInit) 32258945Sroberto return; 33258945Sroberto /* 34258945Sroberto * NOTE: VC++ 6.0 gets this function declaration wrong 35258945Sroberto * so we compensate by casting the argument 36258945Sroberto */ 37258945Sroberto osVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); 38258945Sroberto bSuccess = GetVersionEx((OSVERSIONINFO *) &osVer); 39258945Sroberto 40258945Sroberto /* 41258945Sroberto * Versions of NT before NT4.0 SP6 did not return the 42258945Sroberto * extra info that the EX structure provides and returns 43258945Sroberto * a failure so we need to retry with the old structure. 44258945Sroberto */ 45258945Sroberto if(!bSuccess) { 46258945Sroberto osVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 47258945Sroberto bSuccess = GetVersionEx((OSVERSIONINFO *) &osVer); 48258945Sroberto } 49258945Sroberto bInit = TRUE; 50258945Sroberto} 51258945Sroberto 52258945Srobertounsigned int 53258945Srobertoisc_win32os_majorversion(void) { 54258945Sroberto initialize_action(); 55258945Sroberto return ((unsigned int)osVer.dwMajorVersion); 56258945Sroberto} 57258945Sroberto 58258945Srobertounsigned int 59258945Srobertoisc_win32os_minorversion(void) { 60258945Sroberto initialize_action(); 61258945Sroberto return ((unsigned int)osVer.dwMinorVersion); 62258945Sroberto} 63258945Sroberto 64258945Srobertounsigned int 65258945Srobertoisc_win32os_servicepackmajor(void) { 66258945Sroberto initialize_action(); 67258945Sroberto return ((unsigned int)osVer.wServicePackMajor); 68258945Sroberto} 69258945Sroberto 70258945Srobertounsigned int 71258945Srobertoisc_win32os_servicepackminor(void) { 72258945Sroberto initialize_action(); 73258945Sroberto return ((unsigned int)osVer.wServicePackMinor); 74258945Sroberto} 75258945Sroberto 76258945Srobertoint 77258945Srobertoisc_win32os_versioncheck(unsigned int major, unsigned int minor, 78258945Sroberto unsigned int spmajor, unsigned int spminor) { 79258945Sroberto 80258945Sroberto initialize_action(); 81258945Sroberto 82258945Sroberto if (major < isc_win32os_majorversion()) 83258945Sroberto return (1); 84258945Sroberto if (major > isc_win32os_majorversion()) 85258945Sroberto return (-1); 86258945Sroberto if (minor < isc_win32os_minorversion()) 87258945Sroberto return (1); 88258945Sroberto if (minor > isc_win32os_minorversion()) 89258945Sroberto return (-1); 90258945Sroberto if (spmajor < isc_win32os_servicepackmajor()) 91258945Sroberto return (1); 92258945Sroberto if (spmajor > isc_win32os_servicepackmajor()) 93258945Sroberto return (-1); 94258945Sroberto if (spminor < isc_win32os_servicepackminor()) 95258945Sroberto return (1); 96258945Sroberto if (spminor > isc_win32os_servicepackminor()) 97258945Sroberto return (-1); 98258945Sroberto 99258945Sroberto /* Exact */ 100258945Sroberto return (0); 101258945Sroberto}