62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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#include <stdlib.h>
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#include <spbase.h>
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#include <wincrypt.h>
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SP_STATUS SPAllocOutMem(DWORD cbMessage, PSPBuffer pCommOutput)
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{
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SP_BEGIN("SPAllocOutMem");
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pCommOutput->cbData = cbMessage;
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DebugLog((DEB_TRACE, "Output buffer size %x\n", cbMessage));
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/* are we allocating our own memory? */
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if(pCommOutput->pvBuffer == NULL)
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{
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pCommOutput->pvBuffer = SPExternalAlloc(pCommOutput->cbData);
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if (NULL == pCommOutput->pvBuffer)
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{
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SP_RETURN(SP_LOG_RESULT(SEC_E_INSUFFICIENT_MEMORY));
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}
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pCommOutput->cbBuffer = pCommOutput->cbData;
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}
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if(pCommOutput->cbData > pCommOutput->cbBuffer)
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{
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// Required buffer size returned in pCommOutput->cbData.
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SP_RETURN(PCT_INT_BUFF_TOO_SMALL);
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}
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SP_RETURN(PCT_ERR_OK);
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}
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//Make sure that we have cbMessage in the buffer, if not allocate,
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//if more leave it alone
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SP_STATUS SPAllocOutMemChk(DWORD cbMessage, PSPBuffer pOut)
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{
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SP_STATUS pctRet = PCT_ERR_OK;
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if(pOut->cbBuffer < cbMessage)
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{
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SPBuffer spbufT;
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spbufT.cbData = spbufT.cbBuffer = 0;
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spbufT.pvBuffer = NULL;
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pctRet = SPAllocOutMem(cbMessage, &spbufT);
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if(PCT_ERR_OK == pctRet)
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{
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CopyMemory((PBYTE)spbufT.pvBuffer, (PBYTE)pOut->pvBuffer, pOut->cbData);
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SPExternalFree(pOut->pvBuffer);
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pOut->pvBuffer = spbufT.pvBuffer;
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pOut->cbBuffer = cbMessage;
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}
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}
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return(pctRet);
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}
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