isc/win32/win32os.c

	win32os.c revision 70e5a7403f0e0a3bd292b8287c5fed5772c15270
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews/*
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * Copyright (C) 2004, 2007  Internet Systems Consortium, Inc. ("ISC")
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * Copyright (C) 2002  Internet Software Consortium.
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews *
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * Permission to use, copy, modify, and/or distribute this software for any
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * purpose with or without fee is hereby granted, provided that the above
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * copyright notice and this permission notice appear in all copies.
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews *
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews * PERFORMANCE OF THIS SOFTWARE.
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews */
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews/* $Id: win32os.c,v 1.5 2007/06/19 23:47:19 tbox Exp $ */
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews#include <windows.h>
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews#include <isc/win32os.h>
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsstatic BOOL bInit = FALSE;
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsstatic OSVERSIONINFOEX osVer;
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsstatic void
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsinitialize_action(void) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    BOOL bSuccess;
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (bInit)
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return;
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    /*
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     * NOTE: VC++ 6.0 gets this function declaration wrong
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     * so we compensate by casting the argument
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     */
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    osVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    bSuccess = GetVersionEx((OSVERSIONINFO *) &osVer);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    /*
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     * Versions of NT before NT4.0 SP6 did not return the
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     * extra info that the EX structure provides and returns
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     * a failure so we need to retry with the old structure.
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews     */
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if(!bSuccess) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        osVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        bSuccess = GetVersionEx((OSVERSIONINFO *) &osVer);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    }
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    bInit = TRUE;
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsunsigned int
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsisc_win32os_majorversion(void) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    initialize_action();
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    return ((unsigned int)osVer.dwMajorVersion);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsunsigned int
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsisc_win32os_minorversion(void) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    initialize_action();
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    return ((unsigned int)osVer.dwMinorVersion);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsunsigned int
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsisc_win32os_servicepackmajor(void) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    initialize_action();
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    return ((unsigned int)osVer.wServicePackMajor);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsunsigned int
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsisc_win32os_servicepackminor(void) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    initialize_action();
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    return ((unsigned int)osVer.wServicePackMinor);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsint
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrewsisc_win32os_versioncheck(unsigned int major, unsigned int minor,
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews             unsigned int spmajor, unsigned int spminor) {
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    initialize_action();
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (major < isc_win32os_majorversion())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (major > isc_win32os_majorversion())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (-1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (minor < isc_win32os_minorversion())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (minor > isc_win32os_minorversion())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (-1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (spmajor < isc_win32os_servicepackmajor())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (spmajor > isc_win32os_servicepackmajor())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (-1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (spminor < isc_win32os_servicepackminor())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    if (spminor > isc_win32os_servicepackminor())
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews        return (-1);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    /* Exact */
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews    return (0);
38e8022ace865803bdd609c9763cd7d7ba2818dcMark Andrews}