external/bsd/bind/dist/lib/isc/win32/win32os.c

   1 /*      $NetBSD: win32os.c,v 1.6 2015/07/08 17:29:00 christos Exp $     */
   2
   3 /*
   4  * Copyright (C) 2004, 2007, 2013-2015  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 2002  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #include <windows.h>
  21
  22 #ifndef TESTVERSION
  23 #include <isc/win32os.h>
  24 #else
  25 #include <stdio.h>
  26 #endif
  27
  28 int
  29 isc_win32os_versioncheck(unsigned int major, unsigned int minor,
  30                          unsigned int spmajor, unsigned int spminor)
  31 {
  32         OSVERSIONINFOEX osVer;
  33         DWORD typeMask;
  34         ULONGLONG conditionMask;
  35
  36         memset(&osVer, 0, sizeof(OSVERSIONINFOEX));
  37         osVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  38         typeMask = 0;
  39         conditionMask = 0;
  40
  41         /* Optimistic: likely greater */
  42         osVer.dwMajorVersion = major;
  43         typeMask |= VER_MAJORVERSION;
  44         conditionMask = VerSetConditionMask(conditionMask,
  45                                             VER_MAJORVERSION,
  46                                             VER_GREATER);
  47         osVer.dwMinorVersion = minor;
  48         typeMask |= VER_MINORVERSION;
  49         conditionMask = VerSetConditionMask(conditionMask,
  50                                             VER_MINORVERSION,
  51                                             VER_GREATER);
  52         osVer.wServicePackMajor = spmajor;
  53         typeMask |= VER_SERVICEPACKMAJOR;
  54         conditionMask = VerSetConditionMask(conditionMask,
  55                                             VER_SERVICEPACKMAJOR,
  56                                             VER_GREATER);
  57         osVer.wServicePackMinor = spminor;
  58         typeMask |= VER_SERVICEPACKMINOR;
  59         conditionMask = VerSetConditionMask(conditionMask,
  60                                             VER_SERVICEPACKMINOR,
  61                                             VER_GREATER);
  62         if (VerifyVersionInfo(&osVer, typeMask, conditionMask))
  63                 return (1);
  64
  65         /* Failed: retry with equal */
  66         conditionMask = 0;
  67         conditionMask = VerSetConditionMask(conditionMask,
  68                                             VER_MAJORVERSION,
  69                                             VER_EQUAL);
  70         conditionMask = VerSetConditionMask(conditionMask,
  71                                             VER_MINORVERSION,
  72                                             VER_EQUAL);
  73         conditionMask = VerSetConditionMask(conditionMask,
  74                                             VER_SERVICEPACKMAJOR,
  75                                             VER_EQUAL);
  76         conditionMask = VerSetConditionMask(conditionMask,
  77                                             VER_SERVICEPACKMINOR,
  78                                             VER_EQUAL);
  79         if (VerifyVersionInfo(&osVer, typeMask, conditionMask))
  80                 return (0);
  81         else
  82                 return (-1);
  83 }
  84
  85 #ifdef TESTVERSION
  86 int
  87 main(int argc, char **argv) {
  88         unsigned int major = 0;
  89         unsigned int minor = 0;
  90         unsigned int spmajor = 0;
  91         unsigned int spminor = 0;
  92         int ret;
  93
  94         if (argc > 1) {
  95                 --argc;
  96                 ++argv;
  97                 major = (unsigned int) atoi(argv[0]);
  98         }
  99         if (argc > 1) {
 100                 --argc;
 101                 ++argv;
 102                 minor = (unsigned int) atoi(argv[0]);
 103         }
 104         if (argc > 1) {
 105                 --argc;
 106                 ++argv;
 107                 spmajor = (unsigned int) atoi(argv[0]);
 108         }
 109         if (argc > 1) {
 110                 --argc;
 111                 ++argv;
 112                 spminor = (unsigned int) atoi(argv[0]);
 113         }
 114
 115         ret = isc_win32os_versioncheck(major, minor, spmajor, spminor);
 116
 117         printf("%s major %u minor %u SP major %u SP minor %u\n",
 118                ret > 0 ? "greater" : (ret == 0 ? "equal" : "less"),
 119                major, minor, spmajor, spminor);
 120         return (ret);
 121 }
 122 #endif