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GM40GPD.c
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GM40GPD.c
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/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
/*@@ @ @@@@ @@@ @@@ @@@@ @ @@ @@*/
/*@ @@@@@@ @@ @@ @@ @@ @@ @@ @@@@@@ @@@ @ @@@ @*/
/*@ @@@ @ @ @ @ @ @@@@ @@ @@@ @ @@ @@@@ @*/
/*@ @@@ @ @@ @@ @@@@@@ @@ @@ @@ @@@ @ @@@@@@@ @@@ @*/
/*@@ @ @@@@@@ @@@@@@ @@@ @@@@ @ @@@@@@@ @@*/
/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
/* _______________________________________________________________ */
/* | | */
/* | PROGRAM : GM40GPD | */
/* | DATE WRITTEN : September 1998 (cc 6855) | */
/* | PROGRAMMER : Mark Hodgson | */
/* | FUNCTION : Generic update shell program | */
/* |_______________________________________________________________| */
/* | | */
/* | MODIFICATION : | */
/* | DATE : | */
/* | ANALYST : | */
/* | PROGRAMMER : | */
/* | REASON : | */
/* |_______________________________________________________________| */
/* */
#include <stdlib.h>
#include <stdio.h>
#include <decimal.h>
#include <string.h>
#include <signal.h>
#include <time.h>
#include <ctest.h>
#include <ctype.h>
#include <limits.h>
#include "fmslib.h"
#include "genreprt.h"
#include "GM40GPD.h"
/* _______________________________________________________________ */
/* | | */
/* | structure tags (see header files also) | */
/* |_______________________________________________________________| */
/* */
struct FilePointers
{
FILE* pUpdFile;
FILE* pMasFile;
FILE* pCompFile;
FILE* pParmFile;
FILE* pMG64File;
FILE* pDateFile;
FILE* pMasOutFile;
FILE* pUpdRejFile;
FILE* pPrintFile;
};
/* _______________________________________________________________ */
/* | | */
/* | function prototypes | */
/* |_______________________________________________________________| */
/* */
static void errorHandler(int SIG_TYPE);
static void processProgParms(int parmCount,
char** ppParms,
struct ProgramParameters* pProgParms);
static void performInitialisation(struct ProgramParameters* pProgParms,
FMS_PARM_STRUCT** ppFmsParms,
struct FilePointers* pFilePtrs,
struct ReportStatistics* pRepStats,
char** ppOverflowArea);
static void readCompanyFile(FILE* pCompFile,
struct ProgramParameters* pProgParms,
char* companyName);
static void readMG64cards(FILE* pInFile,
int numSegs,
char* companyCode,
struct ReportStatistics* pRepStats);
static void initialiseRecordObject(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
char* dataArea,
char format);
static void readOasisRecord(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
FILE* pInFile,
struct ReportStatistics* pRepStats,
struct ProgramParameters* pProgParms,
char* pOverflowArea);
static size_t readOverflow(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
char* pOverflowArea,
FILE* pInFile);
static int checkRecLength(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms);
extern void GM40GPDU(FMS_PARM_STRUCT* pFmsParms,
int segNum,
char* pUpdSeg,
char* pMasSeg,
char* binSysDate);
static int compareUrns(struct RecordDetails* pFmsRec1,
struct RecordDetails* pFmsRec2);
static void applyUpdateRecord(struct RecordDetails* pUpdRec,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms,
struct ProgramParameters* pProgParms,
struct ReportStatistics* pRepStats);
extern int GM40GPDK(char* pUpdSeg,
int updSegNum,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms);
static void fixClashingUpdatePointers(struct RecordDetails* pUpdRec,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms);
static void rewireLinkBoxPointers(int segment,
char* pMasSeg,
char* pUpdSeg,
struct RecordDetails* pUpdRec,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms);
static void rewireUpdateSegPointers(int parentSeg,
char* pMasSeg,
char* pUpdSeg,
struct RecordDetails* pUpdRec,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms);
static void addSegment(int segNum,
char* pUpdSeg,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms);
static void checkForPossibleOverflow(struct RecordDetails* pUpdRec,
struct RecordDetails* pMasRec,
FMS_PARM_STRUCT* pFmsParms,
struct ProgramParameters* pProgParms,
struct ReportStatistics* pRepStats,
FILE* pUpdRejFile,
char* pOverflowArea);
static void writeOasisRecord(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
FILE* pOutFile,
struct ReportStatistics* pRepStats,
struct ProgramParameters* pProgParms);
static void dedupeLinkBoxes(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
struct ReportStatistics* pRepStats);
static size_t writeOverflow(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
FILE* pOutFile);
static void performTermination(struct ReportStatistics* pRepStats,
struct ProgramParameters* pProgParms,
struct FilePointers* pFilePtrs,
FMS_PARM_STRUCT* pFmsParms);
extern void GM40PDO(struct ProgramParameters** ppProgParms,
struct ReportStatistics** ppRepStats,
struct RecordDetails** ppFmsRec,
FMS_PARM_STRUCT** ppFmsParms,
int* runType);
static void printReports(struct ReportStatistics* pRepStats,
struct ProgramParameters* pProgParms,
struct FilePointers* pFilePtrs,
FMS_PARM_STRUCT* pFmsParms);
/* for debugging */
static void showData(char* segPtr, int segLen);
static int showField(struct RecordDetails* pFmsRec,
int seg,
int occ,
int fld,
FMS_PARM_STRUCT* pFmsParms);
/* _______________________________________________________________ */
/* | | */
/* | function : main | */
/* | - the main function (what else?) | */
/* |_______________________________________________________________| */
/* */
int main (int parmCount, char **ppParms)
{
/* declare structure to store parameter details (defined in GM40GPD.h) */
static struct ProgramParameters progParms = {0};
/* declare structure to store file pointers (defined above) */
static struct FilePointers filePtrs;
/* declare structure to store FMS parameters (defined in FMSLIB.h) */
static FMS_PARM_STRUCT* pFmsParms = NULL;
/* declare structure to store report counts etc. (defined in GM40GPD.h) */
static struct ReportStatistics repStats = {0};
/* declare FMS record 'objects' (defined in GM40GPD.h) */
static struct RecordDetails updRec = {0};
static struct RecordDetails masRec = {0};
static struct RecordDetails savedMasRec = {0};
/* declare record storage areas. note that first two bytes are */
/* reserved for varying strings in optional PL/1 subroutines. */
/* the overflow area will be dynamically allocated later. */
static char updArea1MAX_REC_SIZE+2# = {0};
static char masArea1MAX_REC_SIZE+2# = {0};
static char newMasArea1MAX_REC_SIZE+2# = {0};
static char* overflowMasArea = NULL;
/* for detecting next URN */
static char prevUpdUrn1100# = {0};
int ctl1=0, ctl2=0, ctl3=0;
printf("Oh my God! They killed Kenny!\n");
signal(SIGABRT, errorHandler);
processProgParms(parmCount, ppParms, &progParms);
performInitialisation(&progParms,
&pFmsParms,
&filePtrs,
&repStats,
&overflowMasArea);
/* joins record object with storage area initialises shortcut fields etc. */
initialiseRecordObject(&updRec, pFmsParms, updArea+2, 'U');
initialiseRecordObject(&masRec, pFmsParms, masArea+2, 'M');
/* note that the optional routine GM40GPDI is called by this function */
readOasisRecord(&masRec,
pFmsParms,
filePtrs.pMasFile,
&repStats,
&progParms,
overflowMasArea);
/* check for empty files and check rec lengths against paramater file... */
/* an empty master is fine if FIRSTRUN parameter is set */
if (feof(filePtrs.pMasFile) && !progParms.isFirstRun)
{
fprintf(stderr,"ERROR : master file is empty\n ");
abort();
}
if (0 != checkRecLength(&masRec, pFmsParms) && !feof(filePtrs.pMasFile))
{
fprintf(stderr,
"ERROR : length of 1st master record does not match parameter file\n ");
abort();
}
readOasisRecord(&updRec,
pFmsParms,
filePtrs.pUpdFile,
&repStats,
&progParms,
NULL); /* oflow area ptr is null because no oflow for upd */
if (feof(filePtrs.pUpdFile))
{
fprintf(stderr,"ERROR : update file is empty\n ");
abort();
}
if (0 != checkRecLength(&updRec, pFmsParms))
{
fprintf(stderr,
"ERROR : length of 1st update record does not match parameter file\n ");
abort();
}
/* _______________________________________________________________ */
/* | | */
/* | main loop - match updates to masters | */
/* |_______________________________________________________________| */
/* */
while (!feof(filePtrs.pMasFile)
|| !feof(filePtrs.pUpdFile))
{
//if (ctl1++ > 100) break;
while(compareUrns(&masRec,&updRec) == 0)
{
//if (ctl2++ > 100) break;
checkForPossibleOverflow(&updRec,
&masRec,
pFmsParms,
&progParms,
&repStats,
filePtrs.pUpdRejFile,
overflowMasArea);
applyUpdateRecord(&updRec, &masRec, pFmsParms, &progParms, &repStats);
readOasisRecord(&updRec,
pFmsParms,
filePtrs.pUpdFile,
&repStats,
&progParms,
NULL);
}
if(compareUrns(&masRec,&updRec) > 0 && !feof(filePtrs.pUpdFile))
{
//printf("BRAND SPANKING NEW RECORD!\n--------------------------\n");
savedMasRec = masRec;
initialiseRecordObject(&masRec, pFmsParms, newMasArea+2, 'M');
while(compareUrns(&savedMasRec, &updRec) > 0 && !feof(filePtrs.pUpdFile))
{
//if (ctl3++ > 100) break;
checkForPossibleOverflow(&updRec,
&masRec,
pFmsParms,
&progParms,
&repStats,
filePtrs.pUpdRejFile,
overflowMasArea);
applyUpdateRecord(&updRec, &masRec, pFmsParms, &progParms, &repStats);
memcpy(prevUpdUrn, updRec.pUrn, updRec.urnLen);
readOasisRecord(&updRec,
pFmsParms,
filePtrs.pUpdFile,
&repStats,
&progParms,
NULL);
if (memcmp(prevUpdUrn, updRec.pUrn, updRec.urnLen) != 0)
{
writeOasisRecord(&masRec,
pFmsParms,
filePtrs.pMasOutFile,
&repStats,
&progParms);
initialiseRecordObject(&masRec, pFmsParms, newMasArea+2, 'M');
}
//else
//printf("new mas check rec len result %d\n",checkRecLength(&masRec,pFmsParms))
}
masRec=savedMasRec;
}
if(compareUrns(&masRec,&updRec) < 0)
{
writeOasisRecord(&masRec,
pFmsParms,
filePtrs.pMasOutFile,
&repStats,
&progParms);
/* re-initialise in case last record used overflow area */
initialiseRecordObject(&masRec, pFmsParms, masArea+2, 'M');
readOasisRecord(&masRec,
pFmsParms,
filePtrs.pMasFile,
&repStats,
&progParms,
overflowMasArea);
}
} /* end of loop through files */
/* _______________________________________________________________ */
/* | | */
/* | finish up (yayyy!!!)... | */
/* |_______________________________________________________________| */
/* */
performTermination(&repStats, &progParms, &filePtrs, pFmsParms);
return 0;
} /* END OF MAIN */
/* _______________________________________________________________ */
/* | | */
/* | function : processProgParms | */
/* | - validate and store parameters passed to program | */
/* | - the first three parms are mandatory and fixed format | */
/* | - the remaining parameters are optional and may appear | */
/* | in any order | */
/* |_______________________________________________________________| */
/* */
static void processProgParms(int parmCount,
char** ppParms,
struct ProgramParameters* pProgParms)
{
int i;
/* validate and store mandatory parameters... */
if (parmCount < 4)
{
fprintf(stderr,"insufficient parameters\n");
fprintf(stderr,"require: 1company# 1version# 1overflow max#\n");
abort();
}
if (strlen(ppParms11#) != 3)
{
fprintf(stderr,"parameter 1 should be 3 byte company code :'%s'\n",
ppParms11#);
abort();
}
memcpy(pProgParms->companyCode, ppParms11#, 3);
if (strlen(ppParms12#) != 1)
{
fprintf(stderr,"parameter 2 should be 1 byte version number :'%s'\n",
ppParms12#);
abort();
}
pProgParms->oasisVersion = ppParms12#10#;
pProgParms->oflowMax = atoi(ppParms13#);
if (pProgParms->oflowMax < 2 * MAX_REC_SIZE)
{
fprintf(stderr,"overflow area size '%s' should be at least %d bytes\n",
ppParms13#, 2 * MAX_REC_SIZE);
abort();
}
/* store remaining optional parms in 'argc' and 'argv' stylee */
if (parmCount >= 5)
{
pProgParms->optParmCount = parmCount - 4;
pProgParms->ppOptParms = &ppParms14#;
/* see if there's a FIRSTRUN parameter */
pProgParms->isFirstRun = 0;
for(i=0; i<pProgParms->optParmCount && !pProgParms->isFirstRun; i++)
{
if(strcmp(pProgParms->ppOptParms1i#,"FIRSTRUN") == 0)
pProgParms->isFirstRun = 1;
}
}
return;
}
/* _______________________________________________________________ */
/* | | */
/* | function : performInitialisation | */
/* | - open files | */
/* | - read and store oasis parameters | */
/* | - read and store company name | */
/* | - read and store segment titles | */
/* | - store dataset names | */
/* | - get run date from file or system date | */
/* | - allocate area for overflows | */
/* |_______________________________________________________________| */
/* */
static void performInitialisation(struct ProgramParameters* pProgParms,
FMS_PARM_STRUCT** ppFmsParms,
struct FilePointers* pFilePtrs,
struct ReportStatistics* pRepStats,
char** ppOverflowArea)
{
time_t timer = 0;
struct tm * pTime = NULL;
fldata_t fileinfo;
char companyVersion15# = "";
char systemDDMMCCYY19# = "";
char dateRec18# = "";
register i=0;
register j=0;
short binaryDateLength = 3;
char datecenRunType = 'B';
int bespokeRoutineRunType = -1;
char dummyArea1MAX_REC_SIZE+2# = "";
struct RecordDetails dummyRec = {0};
struct RecordDetails* pDummyRec = NULL;
/* open files... */
if ((pFilePtrs->pUpdFile = fopen("DD:UPDIN", "rb, type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open update file\n");
abort();
}
if ((pFilePtrs->pMasFile = fopen("DD:MASIN", "rb, type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open master file\n");
abort();
}
if ((pFilePtrs->pCompFile = fopen("DD:FMSCOMP","rb+,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open company file\n");
abort();
}
if ((pFilePtrs->pParmFile = fopen("DD:FMSPARM","rb+,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open parameter file\n");
abort();
}
if ((pFilePtrs->pMG64File = fopen("DD:MG64IN","rb,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open MG64 cards file\n");
abort();
}
if ((pFilePtrs->pMasOutFile = fopen("DD:MASOUT","wb,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open master out file\n");
abort();
}
if ((pFilePtrs->pUpdRejFile = fopen("DD:REJUPD","wb,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open update reject file\n");
abort();
}
pFilePtrs->pDateFile = fopen("DD:DATEIN","rb,type=record");
if ((pFilePtrs->pPrintFile = fopen("DD:MAINREP","wb,type=record")) == NULL)
{
fprintf(stderr,"ERROR - Cannot open print file\n");
abort();
}
/* get company name from FMS company file */
readCompanyFile(pFilePtrs->pCompFile, pProgParms, pRepStats->companyName);
fclose(pFilePtrs->pCompFile);
/* store fms parameters with readparm function (gets a bit complex */
/* - see FMSLIB documetation for structure details) */
memcpy(companyVersion, &(pProgParms->companyCode), 4);
companyVersion14# = '\0';
*ppFmsParms = readparm(companyVersion, pFilePtrs->pParmFile);
fclose(pFilePtrs->pParmFile);
/* if segment pointers are allowed to update each other, the results */
/* may be uNprEDicTabLe so make sure all pointers have code of 199 */
for(i=1; i<=(*ppFmsParms)->hNumSegments; i++)
{
if((*ppFmsParms)->pSegments1i#.hSegLength > 0)
{
if((*ppFmsParms)->pSegments1i#.pFields1REVPTR#.aUpdateAction != 199)
{
fprintf(stderr, "ERROR - rev ptr field on seg %02d "
"should have update action = 199\n",i);
abort();
}
if((*ppFmsParms)->pSegments1i#.pFields1FWDPTR#.aUpdateAction != 199)
{
fprintf(stderr, "ERROR - fwd ptr field on seg %02d "
"should have update action = 199\n",i);
abort();
}
}
}
/* use segment count to allocate space for segment report details */
pRepStats->pSegDetail = calloc
(((*ppFmsParms)->hNumSegments + 1), sizeof (struct SegmentDetails));
if(pRepStats->pSegDetail == NULL)
{
fprintf(stderr,"ERROR - unable to allocate seg details array\n");
abort();
}
/* get segment titles from 'MG64' cards */
readMG64cards(pFilePtrs->pMG64File,
(*ppFmsParms)->hNumSegments,
pProgParms->companyCode,
pRepStats);
fclose(pFilePtrs->pMG64File);
/* store dataset details for use in reports */
strcpy(pRepStats->dataset10#.ddName, "UPDIN ");
strcpy(pRepStats->dataset10#.description, "Oasis update records (in) ");
strcpy(pRepStats->dataset11#.ddName, "MASIN ");
strcpy(pRepStats->dataset11#.description, "Oasis master records (in) ");
strcpy(pRepStats->dataset12#.ddName, "FMSCOMP ");
strcpy(pRepStats->dataset12#.description, "Company File (in) ");
strcpy(pRepStats->dataset13#.ddName, "FMSPARM ");
strcpy(pRepStats->dataset13#.description, "Parameter File (in) ");
strcpy(pRepStats->dataset14#.ddName, "MG64IN ");
strcpy(pRepStats->dataset14#.description, "MG64 Cards (in) ");
strcpy(pRepStats->dataset15#.ddName, "DATEIN ");
strcpy(pRepStats->dataset15#.description, "Date override file (in) ");
strcpy(pRepStats->dataset16#.ddName, "MASOUT ");
strcpy(pRepStats->dataset16#.description, "Updated database (out)");
strcpy(pRepStats->dataset17#.ddName, "REJUPD ");
strcpy(pRepStats->dataset17#.description, "Rejected updates (out)");
strcpy(pRepStats->dataset18#.ddName, "MAINREP ");
strcpy(pRepStats->dataset18#.description, "Report print file (out)");
/* get system time and date and 'run date'... */
/* try to open and read date override file */
if(pFilePtrs->pDateFile != NULL)
fread((void *)&dateRec, 1, sizeof(dateRec), pFilePtrs->pDateFile);
/* get system time and date in character format */
time(&timer);
pTime = localtime(&timer);
strftime(pRepStats->sysDate, 11, "%d/%m/%Y",pTime);
strftime(pRepStats->sysTime, 9, "%I:%M %p",pTime);
/* store experian binary run date - try date override first */
/* (datecen returns nulls if valid date not present)... */
DATECEN(dateRec, pProgParms->experianRunDate,
&datecenRunType, &binaryDateLength);
if(memcmp(pProgParms->experianRunDate, "\0\0", 3) == 0)
{
/* override failed - use system date instead */
strftime(systemDDMMCCYY, 9, "%d%m%Y",pTime);
DATECEN(systemDDMMCCYY, pProgParms->experianRunDate,
&datecenRunType, &binaryDateLength);
if(memcmp(pProgParms->experianRunDate, "\0\0", 3) == 0)
{
fprintf(stderr,"ERROR - Cannot establish binary run date\n");
abort();
}
pProgParms->isDateOverridden = 0;
memcpy(pRepStats->runDate, pRepStats->sysDate, 10);
}
else
{
/* date overriden - copy DDMMCCYY to DD/MM/CCYY for report */
pProgParms->isDateOverridden = 1;
for(i=0, j=0; i<8; i++)
{
if(i==2 || i==4)
pRepStats->runDate1j++# = '/';
pRepStats->runDate1j++# = dateRec1i#;
}
}
/* allocate overflow area - note that preceeding 2 bytes are reserved for */
/* PL1 var strings in subroutines, even though they only work for < 32k */
*ppOverflowArea = malloc(pProgParms->oflowMax + 2);
if(*ppOverflowArea == NULL)
{
fprintf(stderr,"ERROR - Could not allocate memory for overflow area\n");
abort();
}
*ppOverflowArea += 2;
/* set up dummy Oasis record object for bespoke routines */
initialiseRecordObject(&dummyRec, *ppFmsParms, dummyArea+2, 'M');
pDummyRec = &dummyRec;
/* initialise bespoke input routine */
GM40GPDI(&pProgParms,
&pRepStats,
&pDummyRec,
ppFmsParms,
&bespokeRoutineRunType);
/* initialise bespoke output routine */
GM40PDO(&pProgParms,
&pRepStats,
&pDummyRec,
ppFmsParms,
&bespokeRoutineRunType);
return;
}
/* _______________________________________________________________ */
/* | | */
/* | function : errorHandler | */
/* | - this gets called whenever abort() is called | */
/* |_______________________________________________________________| */
/* */
static void errorHandler(int SIG_TYPE)
{
perror(PROG_ID " program aborted ");
fclose(stderr);
fclose(stdout);
exit(4001);
}
/* _______________________________________________________________ */
/* | | */
/* | function : readCompanyFile | */
/* | - get company name from company file | */
/* |_______________________________________________________________| */
/* */
static void readCompanyFile(FILE* pCompFile,
struct ProgramParameters* pProgParms,
char* companyName)
{
char tempStr1100# = "";
char vsamKey110# = "";
const size_t keyLen = 9;
_Packed struct
{
char companyCode 13#;
char version;
char restOfKey 15#;
char compName 130#;
char filler1 1150#;
char currUrn 112#;
char prevUrn 112#;
char filler2 142#;
short fuzzyPassScore;
char filler3 188#;
}compRec;
/* set up key : comp + vers + 5 bytes high values */
sprintf(vsamKey,"%3.3s%c%c%c%c%c%c",
pProgParms->companyCode, pProgParms->oasisVersion,
0xFF,0xFF,0xFF,0xFF,0xFF);
/* locate record on VSAM */
if (flocate(pCompFile,vsamKey,keyLen,__KEY_EQ) != 0)
{
memcpy(tempStr,vsamKey,keyLen);
tempStr1keyLen# = '\0';
fprintf(stderr,"company VSAM locate failed - key : '%s'\n",tempStr);
abort();
}
/* read record */
if (0 == (fread(&compRec,1,sizeof(compRec),pCompFile)))
{
fprintf(stderr,"VSAM read failed\n");
abort();
}
/* copy company name */
memcpy(companyName, compRec.compName, sizeof(compRec.compName));
}
/* _______________________________________________________________ */
/* | | */
/* | function : readMG64cards | */
/* | - get segment titles | */
/* |_______________________________________________________________| */
/* */
static void readMG64cards(FILE* pInFile,
int numSegs,
char* companyCode,
struct ReportStatistics* pRepStats)
{
register seg;
struct
{
char cardID14#;
char company13#;
char fill1;
char segNum12#;
char fill2;
char description130#;
} mg64rec;
for(seg=0; seg<=numSegs; seg++)
{
fread(&mg64rec, 1, sizeof(mg64rec), pInFile);
if(feof(pInFile))
{
fprintf(stderr,"ERROR - MG64 card rec missing\n");
abort();
}
mg64rec.fill2 = '\0'; /* makes segNum into C string for atoi function */
/* validate card */
if(memcmp(mg64rec.cardID, "MG64", 4) != 0
|| memcmp(mg64rec.company, companyCode, 3) != 0
|| atoi(mg64rec.segNum) != seg)
{
fprintf(stderr,"ERROR - expected MG64 card not found\n");
abort();
}
/* copy segment title */
memcpy(pRepStats->pSegDetail1seg#.description,
mg64rec.description,
sizeof(pRepStats->pSegDetail10#.description));
/* convert case (funtion from stuff.h) */
titleCase(pRepStats->pSegDetail1seg#.description,
sizeof(pRepStats->pSegDetail10#.description));
}
}
/* _______________________________________________________________ */
/* | | */
/* | function : initialiseRecordObject | */
/* | - initialise a new instance of RecordDetails object | */
/* |_______________________________________________________________| */
/* */
static void initialiseRecordObject(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
char* dataArea,
char format)
{
void* tempPtr;
int urnField;
/* set prefix length */
switch(format)
{
case 'U': pFmsRec->prefixLen = pFmsParms->hPrefixLength;
break;
case 'M': pFmsRec->prefixLen = 0;
break;
default: /* format not valid! */
{
fprintf(stderr,"ERROR - bad call to 'initialiseRecordObject'\n");
abort();
}
}
if (pFmsParms->hUrnField < 1)
{
fprintf(stderr,"ERROR - urn field not set on parameter file!\n");
abort();
}
/* assign actual record data area to object */
pFmsRec->pData = dataArea;
pFmsRec->recLen = 0; /* empty record */
/* find location and length of urn */
urnField = pFmsParms->hUrnField;
pFmsRec->pUrn = dataArea + pFmsRec->prefixLen +
pFmsParms->pSegments10#.pFields1urnField#.hStartPosition;
pFmsRec->urnLen = pFmsParms->pSegments10#.pFields1urnField#.hFieldLength;
/* find location of urn suffix */
pFmsRec->pUrnSuffix = (short*)(dataArea + pFmsRec->prefixLen +
pFmsParms->pSegments10#.pFields1URN_SUFFIX#.hStartPosition);
/* find location of segment occurence counts */
tempPtr = dataArea + pFmsRec->prefixLen +
pFmsParms->pSegments10#.hSegLength;
pFmsRec->pSegOcc = (short*) tempPtr;
}
/* _______________________________________________________________ */
/* | | */
/* | function : readOasisRecord | */
/* | - read record and update record object | */
/* |_______________________________________________________________| */
/* */
static void readOasisRecord(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
FILE* pInFile,
struct ReportStatistics* pRepStats,
struct ProgramParameters* pProgParms,
char* pOverflowArea)
{
static char prevUrn1100#="";
static char highUrn1100#="";
register seg=0;
static int bespokeRoutineRunType = 0;
static size_t sizeOfOverflowGroup = 0;
memcpy(prevUrn, pFmsRec->pUrn, pFmsRec->urnLen);
pFmsRec->recLen = fread(pFmsRec->pData, 1, MAX_REC_SIZE, pInFile);
/* set high key if end of file */
if (feof(pInFile))
{
memset(highUrn, 0xFF, pFmsRec->urnLen);
pFmsRec->pUrn = highUrn; /* nb: sets pointer, not data! */
return;
}
/* populate overflow area if overflow group */
if(*(pFmsRec->pUrnSuffix) > 0)
{
sizeOfOverflowGroup =
readOverflow(pFmsRec, pFmsParms, pOverflowArea, pInFile);
pRepStats->countOvfRecsRead += sizeOfOverflowGroup - 1;
}
/* check sequence */
if (memcmp(prevUrn, pFmsRec->pUrn, pFmsRec->urnLen) > 0)
{
fprintf(stderr,"ERROR - file out of sequence\n");
abort();
}
/* check for duplicate masters */
if (pFmsRec->prefixLen == 0
&& memcmp(prevUrn, pFmsRec->pUrn, pFmsRec->urnLen) == 0)
{
fprintf(stderr,"ERROR - master file contains duplicate urns\n");
prevUrn1pFmsRec->urnLen# = '\0'; /* convert to C string */
fprintf(stderr," URN : '%s'\n",prevUrn);
abort();
}
/* set up segment offsets */
pFmsRec->segOffset10# = pFmsRec->prefixLen;
pFmsRec->segOffset11# = pFmsRec->prefixLen +
pFmsParms->pSegments10#.hSegLength +
pFmsParms->hNumSegments * sizeof(short);
for(seg=1; seg<=pFmsParms->hNumSegments; seg++)
{
pFmsRec->segOffset1seg+1# = pFmsRec->segOffset1seg# +
pFmsRec->pSegOcc1seg-1# * pFmsParms->pSegments1seg#.hSegLength;
}
/* increment report counts... */
if (pFmsRec->prefixLen == 0)
{
pRepStats->countMasRecsRead++;
pRepStats->pSegDetail10#.mastersRead++;
for(seg=1; seg<=pFmsParms->hNumSegments; seg++)
pRepStats->pSegDetail1seg#.mastersRead += pFmsRec->pSegOcc1seg-1#;
}
else
{
pRepStats->countUpdRecsRead++;
pRepStats->pSegDetail10#.updatesRead++;
for(seg=1; seg<=pFmsParms->hNumSegments; seg++)
pRepStats->pSegDetail1seg#.updatesRead += pFmsRec->pSegOcc1seg-1#;
}
/* call bespoke input routine */
GM40GPDI(&pProgParms,
&pRepStats,
&pFmsRec,
&pFmsParms,
&bespokeRoutineRunType);
}
/* _______________________________________________________________ */
/* | | */
/* | function : readOverflow | */
/* | - copy records in overflow group into extended overflow | */
/* | area | */
/* |_______________________________________________________________| */
/* */
static size_t readOverflow(struct RecordDetails* pFmsRec,
FMS_PARM_STRUCT* pFmsParms,
char* pOverflowArea,
FILE* pInFile)
{
static char rec32k1MAX_REC_SIZE# = "";
static size_t recLen32k = 0;
static char* pInData = NULL;
static struct RecordDetails savedMasRec = {0};
static size_t sizeOfOverflowGroup = 0;
static char* pOflowUrn = NULL;
static short* pOflowUrnSuffix = NULL;
register i;
sizeOfOverflowGroup = *(pFmsRec->pUrnSuffix);
if(pFmsRec->prefixLen > 0)
{
fprintf(stderr,"ERROR - update record reckons it's an overflow!\n");
abort();
}
/* set up record to receive the subsequent overflows... */
/* pointer to drop segment 00 prefix */
pInData = rec32k + pFmsParms->pSegments10#.hSegLength;
/* find location of urn on oflow rec */
pOflowUrn = rec32k +
pFmsParms->pSegments10#.pFields1pFmsParms->hUrnField#.hStartPosition;
/* find location of urn suffix on oflow rec */
pOflowUrnSuffix = (short*)(rec32k +
pFmsParms->pSegments10#.pFields1URN_SUFFIX#.hStartPosition);
/* set up overflow record... */
/* save current record data */
savedMasRec = *pFmsRec;
/* initialise pointers and stuff for overflow area */
initialiseRecordObject(pFmsRec, pFmsParms, pOverflowArea, 'M');
pFmsRec->isOverflow = 1;
/* transfer stuff from saved record */
pFmsRec->recLen = savedMasRec.recLen;