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OSysLevel.cpp
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1996-08-12
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// OCL - OS/2 Class Library
// (c) Cubus 1995
// All Rights Reserved
// OSysLevel.cpp
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Neither the name Cubus nor the name Team OCL may be used to
* endorse or promote products derived from this software
* without specific prior written permission.
* 3. See OCL.INF for a detailed copyright notice.
*
* THIS SOFTWARE IS PROVIDED ``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 THE REGENTS OR CONTRIBUTORS 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.
*/
// $Header: W:/Projects/OCL/Source/rcs/OSysLevel.cpp 1.50 1996/08/11 23:49:33 B.STEIN Release $
#define __OCL_SOURCE__
#define OINCL_OSTRING
#define OINCL_BASE
#include <ocl.hpp>
#include <OSysLevel.hpp>
#include <OMessage.hpp>
OSysLevel::OSysLevel()
{
memset(&slfheader, 0, sizeof(SLFHEADER));
strcpy((PSZ)&slfheader.achSignature, "SYSLEVEL");
slfheader.usSignature = 1;
slfheader.usSlfVersion = 1;
slfheader.ulTableOffset = sizeof(SLFHEADER);
memset(&systable, 0, sizeof(SYSTABLE));
}
OSysLevel::OSysLevel(SLFHEADER& header, SYSTABLE& table)
{
memcpy(&slfheader, &header, sizeof(SLFHEADER));
memcpy(&systable, &table, sizeof(SYSTABLE));
}
OSysLevel::OSysLevel(const OSysLevel& sl)
{
setHeader(sl.getHeader());
setSysTable(sl.getSysTable());
}
OSysLevel::OSysLevel(PCSZ fileName)
: slfile(fileName)
{
memset(&slfheader, 0, sizeof(SLFHEADER));
strcpy((PSZ)&slfheader.achSignature, "SYSLEVEL");
slfheader.usSignature = 1;
slfheader.usSlfVersion = 1;
slfheader.ulTableOffset = sizeof(SLFHEADER);
memset(&systable, 0, sizeof(SYSTABLE));
}
OSysLevel::~OSysLevel()
{}
PSZ OSysLevel::isOfType() const
{
return("OSysLevel");
}
OSysLevel& OSysLevel::readFromFile(PCSZ fileName)
{
#ifdef __IBMCPP__
ifstream sysfile(fileName);
#else
ifstream sysfile((PSZ)fileName);
#endif
OString stamp(10);
if (!sysfile)
throw OVioException(OMessage(220, OCL::MSGFILE, (PSZ)fileName),
ERROR_READ_FAULT);
sysfile.read((PSZ)&slfheader, sizeof(SLFHEADER));
sysfile.read((PSZ)&systable, sizeof(SYSTABLE));
memcpy(stamp.getText(), &slfheader.achSignature,
sizeof(slfheader.achSignature));
if (stamp != "SYSLEVEL")
throw OVioException(OMessage(221, OCL::MSGFILE, (PSZ)fileName),
ERROR_INVALID_DATA);
return(*this);
}
OSysLevel& OSysLevel::writeToFile(PCSZ fileName)
{
#ifdef __IBMCPP__
ofstream sysfile(fileName);
#else
ofstream sysfile((PSZ)fileName);
#endif
if (!sysfile)
throw OVioException(OMessage(220, OCL::MSGFILE, (PSZ)fileName),
ERROR_WRITE_FAULT);
sysfile.write((PSZ)&slfheader, sizeof(SLFHEADER));
sysfile.write((PSZ)&systable, sizeof(SYSTABLE));
return(*this);
}
OSysLevel& OSysLevel::read()
{
if (!slfile)
throw OVioException(OCL::error(222), 0);
return(readFromFile(slfile));
}
OSysLevel& OSysLevel::write()
{
if (!slfile)
throw OVioException(OCL::error(222), 0);
return(writeToFile(slfile));
}
OSysLevel& OSysLevel::setSysTable(const SYSTABLE& stable)
{
memcpy(&systable, &stable, sizeof(SYSTABLE));
return(*this);
}
OSysLevel& OSysLevel::setHeader(const SLFHEADER& slh)
{
memcpy(&slfheader, &slh, sizeof(SLFHEADER));
return(*this);
}
OSysLevel& OSysLevel::setFileName(PCSZ fileName)
{
slfile << fileName;
return(*this);
}
OSysLevel& OSysLevel::setDate()
{
DATETIME dt;
DosGetDateTime(&dt);
sprintf((PSZ)&slfheader.achJulian, "%ld", DTToJulian(dt));
return(*this);
}
OSysLevel& OSysLevel::setDate(DATETIME& dt)
{
sprintf((PSZ)&slfheader.achJulian, "%ld", DTToJulian(dt));
return(*this);
}
OSysLevel& OSysLevel::setDate(PSZ dateStr)
{
if (!dateStr)
memset(&slfheader.achJulian, 0, sizeof(slfheader.achJulian));
else
memcpy(&slfheader.achJulian, dateStr,
strlen(dateStr) < sizeof(slfheader.achJulian) ?
strlen(dateStr) : sizeof(slfheader.achJulian));
return(*this);
}
OSysLevel& OSysLevel::setTableOffset(ULONG offset)
{
slfheader.ulTableOffset = offset;
return(*this);
}
OSysLevel& OSysLevel::setSysId(USHORT sysId)
{
systable.usSysId = sysId;
return(*this);
}
OSysLevel& OSysLevel::setSysEdition(BYTE sysEd)
{
systable.bSysEdition = sysEd;
return(*this);
}
OSysLevel& OSysLevel::setSysVersion(BYTE sysVer)
{
systable.bSysVersion = sysVer;
return(*this);
}
OSysLevel& OSysLevel::setSysModify(BYTE sysMod)
{
systable.bSysModify = sysMod;
return(*this);
}
OSysLevel& OSysLevel::setSysDate(USHORT usDate)
{
systable.usSysDate = usDate;
return(*this);
}
OSysLevel& OSysLevel::setCsdLevel(PSZ level)
{
if (!level)
memset(&systable.achCsdLevel, 0, sizeof(systable.achCsdLevel));
else
memcpy(&systable.achCsdLevel, level,
strlen(level) < sizeof(systable.achCsdLevel) ?
strlen(level) : sizeof(systable.achCsdLevel));
return(*this);
}
OSysLevel& OSysLevel::setCsdPrev(PSZ level)
{
if (!level)
memset(&systable.achCsdPrev, 0, sizeof(systable.achCsdPrev));
else
memcpy(&systable.achCsdPrev, level,
strlen(level) < sizeof(systable.achCsdPrev) ?
strlen(level) : sizeof(systable.achCsdPrev));
return(*this);
}
OSysLevel& OSysLevel::setSysName(PSZ sysname)
{
if (!sysname)
memset(&systable.achSysName, 0, sizeof(systable.achSysName));
else
memcpy(&systable.achSysName, sysname,
strlen(sysname) < sizeof(systable.achSysName) ?
strlen(sysname) : sizeof(systable.achSysName));
return(*this);
}
OSysLevel& OSysLevel::setCompId(PSZ compid)
{
if (!compid)
memset(&systable.achCompId, 0, sizeof(systable.achCompId));
else
memcpy(&systable.achCompId, compid,
strlen(compid) < sizeof(systable.achCompId) ?
strlen(compid) : sizeof(systable.achCompId));
return(*this);
}
OSysLevel& OSysLevel::setRefreshLevel(BYTE refLevel)
{
systable.bRefreshLevel = refLevel;
return(*this);
}
OSysLevel& OSysLevel::setType(PSZ type)
{
if (!type)
memset(&systable.achType, 0, sizeof(systable.achType));
else
memcpy(&systable.achType, type,
strlen(type) < sizeof(systable.achType) ?
strlen(type) : sizeof(systable.achType));
return(*this);
}
const OSysLevel& OSysLevel::getDate(DATETIME& dt) const
{
memset(&dt, 0, sizeof(DATETIME));
JulianToDT(atol((PSZ)&slfheader.achJulian), dt);
return(*this);
}
ULONG OSysLevel::getTableOffset() const
{
return(slfheader.ulTableOffset);
}
USHORT OSysLevel::getSysId() const
{
return(systable.usSysId);
}
USHORT OSysLevel::getSysDate() const
{
return(systable.usSysDate);
}
PCSZ OSysLevel::getFileName() const
{
return(slfile.getText());
}
PCSZ OSysLevel::getDateAsStr(OString& str) const
{
DATETIME dt;
str << "00.00.0000";
JulianToDT(atol((PSZ)&slfheader.achJulian), dt);
sprintf(str.getText(), "%02ld.%02ld.%ld", dt.day, dt.month, dt.year);
return(str.getText());
}
PCSZ OSysLevel::getCsdLevel() const
{
return((PCSZ)systable.achCsdLevel);
}
PCSZ OSysLevel::getCsdPrev() const
{
return((PCSZ)systable.achCsdPrev);
}
PCSZ OSysLevel::getSysName() const
{
return((PCSZ)systable.achSysName);
}
PCSZ OSysLevel::getCompId() const
{
return((PCSZ)systable.achCompId);
}
PCSZ OSysLevel::getType() const
{
return((PCSZ)systable.achType);
}
BYTE OSysLevel::getSysEdition() const
{
return(systable.bSysEdition);
}
BYTE OSysLevel::getSysVersion() const
{
return(systable.bSysVersion);
}
BYTE OSysLevel::getSysModify() const
{
return(systable.bSysModify);
}
BYTE OSysLevel::getRefreshLevel() const
{
return(systable.bRefreshLevel);
}
const SLFHEADER& OSysLevel::getHeader() const
{
return(slfheader);
}
const SYSTABLE& OSysLevel::getSysTable() const
{
return(systable);
}
// conversion routines for julian dates
// these funtions are strictly for internal use only
// and will be moved to the ODate when this class
// is ready for shipping
const INT daysToMonth[2][13] =
{
{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
{ 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
};
const LONG ReformJulianDay = 2361221;
const INT ReformDays = 11;
const INT ReformYEAR = 1752;
const INT ReformDAY = 2;
const INT ReformMONTH = 9;
void OSysLevel::JulianToDT(LONG julian, DATETIME& dt) const
{
INT century;
INT days;
INT j;
LONG fours = julian / 1461;
LONG years = fours * 4;
BOOL leap = FALSE;
if (julian > ReformJulianDay) {
century = (INT) ((julian - 1684595 ) / 36524.25);
julian += (century * 3L / 4L) - 2; }
days = julian % 1461;
for (j = 1; j < 5; ++j) if (365 * j >= days) break;
--j;
if (j == 0)
{
if (years <= 4712 + ReformYEAR) {
leap = TRUE;
++days; }
else {
if ((years - 4712 ) % 100 != 0 || (years - 4712 ) % 400 == 0) {
leap = TRUE;
++days; }}
}
else
days -= 365 * j, years += j;
for (j = 1; j < 12; ++j)
if (days <= daysToMonth[leap][j]) break;
dt.month = j;
dt.day = days - daysToMonth[leap][j - 1];
dt.year = years - 4712;
if (dt.year <= 0 ) dt.year--;
}
LONG OSysLevel::DTToJulian (DATETIME& dt) const
{
INT month_days;
INT century;
INT years = dt.year + 4712;
BOOL leap = FALSE;
LONG year_days = 365L * (LONG) years + (LONG)(years >> 2);
LONG julian_date;
if (dt.year <= 0) dt.year++;
if ((years & 3 ) == 0) {
leap = TRUE;
year_days--; }
month_days = daysToMonth[leap][dt.month - 1];
julian_date = year_days + (long int)(month_days + dt.day);
if (julian_date > ReformJulianDay)
{
years = dt.year - 300;
if (dt.month <= 2) years--;
century = years / 100;
julian_date -= ((century * 3) / 4 + 1);
}
return(julian_date);
}
// end of source