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dynalloc.c
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/*
This program and the accompanying materials are
made available under the terms of the Eclipse Public License v2.0 which accompanies
this distribution, and is available at https://www.eclipse.org/legal/epl-v20.html
SPDX-License-Identifier: EPL-2.0
Copyright Contributors to the Zowe Project.
*/
#ifdef METTLE
#include <metal/metal.h>
#include <metal/stddef.h>
#include <metal/stdio.h>
#include <metal/stdint.h>
#include <metal/string.h>
#include "qsam.h"
#include "metalio.h"
#else
#include <stddef.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <dynit.h>
#endif
#include "zowetypes.h"
#include "alloc.h"
#include "dynalloc.h"
#define TEXT_UNIT_ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
TextUnit *createSimpleTextUnit2(int key, char *value, int firstParameterLength) {
TextUnit *textUnit = NULL;
int length;
length = sizeof(TextUnit) + firstParameterLength;
textUnit = (TextUnit *) safeMalloc31(length, "TextUnit");
if (textUnit == NULL) {
return NULL;
}
textUnit->key = key;
textUnit->number_of_parameters = (value == NULL) ? 0 : 1;
textUnit->first_parameter_length = firstParameterLength;
if (value != NULL) {
memcpy(((char * )textUnit) + sizeof(TextUnit), value, firstParameterLength);
}
return textUnit;
}
TextUnit *createSimpleTextUnit(int key, char *value) {
int firstParameterLength = (value == NULL) ? 0 : strlen(value);
return createSimpleTextUnit2(key, value, firstParameterLength);
}
TextUnit *createIntTextUnit(int key, int value) {
return createSimpleTextUnit2(key, (char*)&value, sizeof(value));
}
TextUnit *createInt8TextUnit(int key, int8_t value) {
return createSimpleTextUnit2(key, (char*)&value, sizeof(value));
}
TextUnit *createInt16TextUnit(int key, int16_t value) {
return createSimpleTextUnit2(key, (char*)&value, sizeof(value));
}
TextUnit *createCharTextUnit(int key, char value) {
char valueArray[2];
valueArray[0] = value;
valueArray[1] = 0;
return createSimpleTextUnit2(key, valueArray, 1);
}
TextUnit *createCompoundTextUnit(int key, char **values, int valueCount) {
TextUnit *textUnit = NULL;
int firstParameterLength;
int length, i, valuesLength = 0;
char *fillPointer;
for (i = 0; i < valueCount; i++) {
valuesLength += (2 + strlen(values[i]));
}
length = sizeof(TextUnit) + (valuesLength - 2); /* -2 for first parm length in header */
textUnit = (TextUnit *)safeMalloc31(length, "Compound TextUnit");
if (textUnit == NULL) {
return NULL;
}
textUnit->key = key;
textUnit->number_of_parameters = valueCount;
fillPointer = ((char *)textUnit) + sizeof(TextUnit) - 2;
for (i = 0; i < valueCount; i++) {
int valueLength = strlen(values[i]);
*((short *)fillPointer) = valueLength;
fillPointer += 2;
strncpy(fillPointer, values[i], valueLength);
fillPointer += valueLength;
}
return textUnit;
}
static int getTextUnitSize(TextUnit *unit) {
if (unit == NULL) {
return 0;
}
int tuSize = sizeof(TextUnit) - sizeof(unit->first_parameter_length);
struct {
short size;
char value[0];
} *currParm = (void *)&unit->first_parameter_length;
for (int i = 0; i < unit->number_of_parameters; i++) {
tuSize += (sizeof(currParm->size) + currParm->size);
currParm = (void *)(currParm->value + currParm->size);
}
return tuSize;
}
void freeTextUnit(TextUnit *textUnit) {
if (textUnit == NULL) {
return;
}
safeFree31((char *)textUnit, getTextUnitSize(textUnit));
}
static void freeTextUnitArray(TextUnit * __ptr32 * array, unsigned int count) {
for (unsigned int i = 0; i < count; i++) {
turn_off_HOB(array[i]);
freeTextUnit(array[i]);
array[i] = NULL;
}
}
ZOWE_PRAGMA_PACK
typedef struct SVC99RequestBlock_tag {
char requestBlockLen;
char verbCode;
short flags1;
#define SVC99_FLAG1_ONCNV 0x8000
#define SVC99_FLAG1_NOCNV 0x4000
#define SVC99_FLAG1_NOMNT 0x2000
#define SVC99_FLAG1_JBSYS 0x1000
#define SVC99_FLAG1_CNENQ 0x0800
#define SVC99_FLAG1_GDGNT 0x0400
#define SVC99_FLAG1_MSGL0 0x0200
#define SVC99_FLAG1_NOMIG 0x0100
short errorReasonCode;
short infoReasonCode;
TextUnit * __ptr32 * __ptr32 textUnits;
void * __ptr32 requestBlockExtension;
int flags2;
} SVC99RequestBlock;
ZOWE_PRAGMA_PACK_RESET
#ifdef METTLE
typedef struct DynallocParms_tag {
SVC99RequestBlock svc99ReqBlock;
SVC99RequestBlock * __ptr32 svc99ReqBlockAddress;
} DynallocParms;
#else
typedef __dyn_t DynallocParms;
#endif
static void dynallocParmsSetTextUnits(DynallocParms *parms,
TextUnit * __ptr32 * units,
int unitCount) {
#ifdef METTLE
parms->svc99ReqBlock.textUnits = units;
#else
parms->__miscitems = (char * __ptr32 * __ptr32)units;
#endif
}
static int dynallocParmsGetErrorCode(DynallocParms *parms) {
#ifdef METTLE
return parms->svc99ReqBlock.errorReasonCode;
#else
return parms->__errcode;
#endif
}
static int dynallocParmsGetInfoCode(DynallocParms *parms) {
#ifdef METTLE
return parms->svc99ReqBlock.infoReasonCode;
#else
return parms->__infocode;
#endif
}
static void dynallocParmsInit(DynallocParms *parms) {
#ifdef METTLE
memset(parms, 0, sizeof(DynallocParms));
parms->svc99ReqBlock.requestBlockLen = sizeof(parms->svc99ReqBlock);
parms->svc99ReqBlock.verbCode = S99VRBAL;
parms->svc99ReqBlock.textUnits = NULL;
parms->svc99ReqBlockAddress =
(SVC99RequestBlock * __ptr32)((int)&parms->svc99ReqBlock | 0x80000000);
#else
dyninit(parms);
#endif
}
static void dynallocParmsTerm(DynallocParms *parms) {
memset(parms, 0, sizeof(DynallocParms));
}
static int invokeSVC99(SVC99RequestBlock * __ptr32 * requestBlockHandle) {
int rc = 0;
__asm(
ASM_PREFIX
" LA 1,0(,%[rb]) \n"
" SVC 99 \n"
" ST 15,%[rc] \n"
: [rc]"=m"(rc)
: [rb]"r"(requestBlockHandle)
: "r0", "r1", "r14", "r15"
);
return rc;
}
static int invokeDynalloc(DynallocParms *parms) {
#ifdef METTLE
return invokeSVC99(&parms->svc99ReqBlockAddress);
#else
return dynalloc(parms);
#endif
}
/* open a stream to the internal reader */
int AllocIntReader(char *datasetOutputClass,
char *ddnameResult,
char *errorBuffer) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[6];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createInt8TextUnit(DALRECFM, DALRECFM_F);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createInt16TextUnit(DALLRECL, 80);
if (below2G->textUnits[1] == NULL) {
break;
}
/* NULL means default */
below2G->textUnits[2] = createSimpleTextUnit(DALSYSOU, datasetOutputClass);
if (below2G->textUnits[2] == NULL) {
break;
}
/* SYSOUT program name */
below2G->textUnits[3] = createSimpleTextUnit(DALSPGNM, "INTRDR");
if (below2G->textUnits[3] == NULL) {
break;
}
below2G->textUnits[4] = createSimpleTextUnit(DALRTDDN, "12345678");
if (below2G->textUnits[4] == NULL) {
break;
}
/* deallocate at close (otherwise, would deallocate at step termination,
* or at explicit deallocation using svc99 verb code = 2) */
below2G->textUnits[5] = createSimpleTextUnit(DALCLOSE, 0);
if (below2G->textUnits[5] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeDynalloc(parms)) != 0) {
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
} else{
strncpy(ddnameResult, below2G->textUnits[4]->first_value,
below2G->textUnits[4]->first_parameter_length);
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int dynallocSharedLibrary(char *ddname, char *dsn, char *errorBuffer) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[6];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit(DALDDNAM, ddname);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createInt8TextUnit(DALRECFM, DALRECFM_U);
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createInt16TextUnit(DALLRECL, 0);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[3] = createSimpleTextUnit(DALDSNAM, dsn);
if (below2G->textUnits[3] == NULL) {
break;
}
below2G->textUnits[4] = createCharTextUnit(DALSTATS, DISP_SHARE);
if (below2G->textUnits[4] == NULL) {
break;
}
/* deallocate at close (otherwise, would deallocate at step termination,
* or at explicit deallocation using svc99 verb code = 2) */
below2G->textUnits[5] = createSimpleTextUnit(DALCLOSE, 0);
if (below2G->textUnits[5] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeDynalloc(parms)) != 0) {
fflush(stdout);
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int dynallocUSSDirectory(char *ddname, char *ussPath, char *errorBuffer) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[4];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit(DALDDNAM, ddname);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createInt8TextUnit(DALRECFM, DALRECFM_U);
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createInt16TextUnit(DALLRECL, 0);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[3] = createSimpleTextUnit(DALPATH, ussPath);
if (below2G->textUnits[3] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeDynalloc(parms)) != 0) {
fflush(stdout);
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int dynallocUSSOutput(char *ddname, char *ussPath, char *errorBuffer) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[7];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit(DALDDNAM, ddname);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createInt8TextUnit(DALRECFM, DALRECFM_F);
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createInt16TextUnit(DALLRECL, 133);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[3] = createSimpleTextUnit(DALPATH, ussPath);
if (below2G->textUnits[3] == NULL) {
break;
}
/* opts (OWRONLY,OCREAT,OTRUNC),
mode (SIRWXU,SIRGRP) */
below2G->textUnits[4] = createIntTextUnit(DALPOPT, DALPOPT_OCREAT |
DALPOPT_OWRONLY |
DALPOPT_OTRUNC);
if (below2G->textUnits[4] == NULL) {
break;
}
below2G->textUnits[5] = createIntTextUnit(DALPMDE, DALPMDE_SIRWXU |
DALPMDE_SIRGRP);
if (below2G->textUnits[5] == NULL) {
break;
}
/* means text with newlines */
below2G->textUnits[6] = createCharTextUnit(DALFDAT, 0x40);
if (below2G->textUnits[6] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeDynalloc(parms)) != 0) {
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
/* allocate a "secret" SAPI output data set */
int AllocForSAPI(char *dsn,
char *ddnameResult,
char *ssname,
void *browseToken,
char *errorBuffer) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[4];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit(DALDSNAM, dsn);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createSimpleTextUnit(DALRTDDN, ddnameResult);
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createSimpleTextUnit(DALSSREQ, ssname);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[3] = browseToken;
if (below2G->textUnits[3] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeDynalloc(parms)) != 0) {
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
} else {
char *returnedDDName = below2G->textUnits[1]->first_value;
memcpy(ddnameResult, returnedDDName, 8);
}
} while (0);
/* don't free the last entry - it doesn't belong to us */
freeTextUnitArray(below2G->textUnits, textUnitCount - 1);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int AllocForDynamicOutput(char *outDescName, /* input - may be null */
char *ddnameResult, /* output, pass in 8-blanks */
char *ssname, /* ? */
char *errorBuffer) { /* 256 for good fortune */
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[4];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit(DALRTDDN, ddnameResult);
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createSimpleTextUnit(DALSYSOU, NULL);
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createSimpleTextUnit(DALCLOSE, NULL);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[2] = createSimpleTextUnit(DALCLOSE, NULL);
if (outDescName != NULL) {
below2G->textUnits[3] = createSimpleTextUnit(DALOUTPT, outDescName);
if (below2G->textUnits[3] == NULL) {
break;
};
turn_on_HOB(below2G->textUnits[3]);
} else {
turn_on_HOB(below2G->textUnits[2]);
}
if ((rc = invokeDynalloc(parms)) != 0) {
sprintf(errorBuffer, "dynalloc return code=%d, error=%04x, info=%04x", rc,
dynallocParmsGetErrorCode(parms), dynallocParmsGetInfoCode(parms));
} else {
char *returnedDDName = below2G->textUnits[0]->first_value;
memcpy(ddnameResult, returnedDDName, 8);
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int DeallocDDName(char *ddname) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
SVC99RequestBlock plist;
SVC99RequestBlock * __ptr32 plistAddress;
TextUnit * __ptr32 textUnits[1];
)
);
below2G->plistAddress =
(SVC99RequestBlock * __ptr32)((int)&below2G->plist | 0x80000000);
SVC99RequestBlock *plist = &below2G->plist;
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
memset(plist, 0, sizeof(plist));
plist->requestBlockLen = sizeof(SVC99RequestBlock);
plist->verbCode = S99VRBUN;
plist->flags1 = 0x00;
plist->textUnits = below2G->textUnits;
int rc;
do {
below2G->textUnits[0] = createSimpleTextUnit(DALDDNAM, ddname);
if (below2G->textUnits[0] == NULL) {
rc = -1;
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
if ((rc = invokeSVC99(&below2G->plistAddress)) != 0) {
if (plist->errorReasonCode == 0x0438) {
;/* DDNAME was not in use */
} else {
// printf("ret=%d, error=%04x\n", rc, plist->errorReasonCode);
}
}
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int dynallocDataset(DynallocInputParms *inputParms, int *reasonCode) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[3];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit2(DALDDNAM,
inputParms->ddName,
sizeof(inputParms->ddName));
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createSimpleTextUnit2(DALDSNAM,
inputParms->dsName,
sizeof(inputParms->dsName));
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createCharTextUnit(DALSTATS, inputParms->disposition);
if (below2G->textUnits[2] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
rc = invokeDynalloc(parms);
*reasonCode = dynallocParmsGetInfoCode(parms) +
(dynallocParmsGetErrorCode(parms) << 16);
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
int dynallocDatasetMember(DynallocInputParms *inputParms, int *reasonCode,
char *member) {
int memberLength = strlen(member);
if (memberLength > 8) {
return 16;
}
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
DynallocParms parms;
TextUnit * __ptr32 textUnits[4];
)
);
DynallocParms *parms = &below2G->parms;
dynallocParmsInit(parms);
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
dynallocParmsSetTextUnits(parms, below2G->textUnits, textUnitCount);
int rc;
do {
rc = -1;
below2G->textUnits[0] = createSimpleTextUnit2(DALDDNAM,
inputParms->ddName,
sizeof(inputParms->ddName));
if (below2G->textUnits[0] == NULL) {
break;
}
below2G->textUnits[1] = createSimpleTextUnit2(DALDSNAM,
inputParms->dsName,
sizeof(inputParms->dsName));
if (below2G->textUnits[1] == NULL) {
break;
}
below2G->textUnits[2] = createSimpleTextUnit2(DALMEMBR, member, memberLength);
if (below2G->textUnits[2] == NULL) {
break;
}
below2G->textUnits[3] = createCharTextUnit(DALSTATS, inputParms->disposition);
if (below2G->textUnits[3] == NULL) {
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
rc = invokeDynalloc(parms);
*reasonCode = dynallocParmsGetInfoCode(parms) +
(dynallocParmsGetErrorCode(parms) << 16);
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
dynallocParmsTerm(parms);
parms = NULL;
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
/* The function deallocates a previously allocated dataset and destroys its DD label. */
int unallocDataset(DynallocInputParms *inputParms, int *reasonCode) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
SVC99RequestBlock requestBlock;
SVC99RequestBlock * __ptr32 requestBlockAddress;
TextUnit * __ptr32 textUnits[1];
)
);
below2G->requestBlockAddress =
(SVC99RequestBlock * __ptr32)((int)&below2G->requestBlock | 0x80000000);
SVC99RequestBlock *requestBlock = &below2G->requestBlock;
unsigned int textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
memset(requestBlock, 0, sizeof(SVC99RequestBlock));
requestBlock->requestBlockLen = sizeof(SVC99RequestBlock);
requestBlock->verbCode = S99VRBUN;
requestBlock->textUnits = below2G->textUnits;
int rc;
do {
below2G->textUnits[0] = createSimpleTextUnit2(DALDDNAM,
inputParms->ddName,
sizeof(inputParms->ddName));
if (below2G->textUnits[0] == NULL) {
rc = -1;
break;
}
turn_on_HOB(below2G->textUnits[textUnitCount - 1]);
rc = invokeSVC99(&below2G->requestBlockAddress);
*reasonCode = requestBlock->infoReasonCode +
(requestBlock->errorReasonCode << 16);
} while (0);
freeTextUnitArray(below2G->textUnits, textUnitCount);
FREE_STRUCT31(
STRUCT31_NAME(below2G)
);
return rc;
}
static void setAllocsFlags(SVC99RequestBlock *rb, DynallocAllocFlags flags) {
if (flags & DYNALLOC_ALLOC_FLAG_NO_CONVERSION) {
rb->flags1 |= SVC99_FLAG1_NOCNV;
}
if (flags & DYNALLOC_ALLOC_FLAG_NO_MOUNT) {
rb->flags1 |= SVC99_FLAG1_NOMNT;
}
}
int dynallocAllocDataset(const DynallocDatasetName *dsn,
const DynallocMemberName *member,
DynallocDDName *ddName,
DynallocDisposition disp,
DynallocAllocFlags flags,
int *sysRC, int *sysRSN) {
ALLOC_STRUCT31(
STRUCT31_NAME(below2G),
STRUCT31_FIELDS(
SVC99RequestBlock requestBlock;
SVC99RequestBlock * __ptr32 requestBlockAddress;
TextUnit * __ptr32 textUnits[4];
)
);
below2G->requestBlockAddress =
(SVC99RequestBlock * __ptr32)((int)&below2G->requestBlock | 0x80000000);
SVC99RequestBlock *requestBlock = &below2G->requestBlock;
unsigned textUnitCount = TEXT_UNIT_ARRAY_SIZE(below2G->textUnits);
memset(requestBlock, 0, sizeof(SVC99RequestBlock));
requestBlock->requestBlockLen = sizeof(SVC99RequestBlock);