diff options
Diffstat (limited to 'src/VBox/Runtime/common/crypto/RTCrStoreCertExportAsPem.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/crypto/RTCrStoreCertExportAsPem.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/crypto/RTCrStoreCertExportAsPem.cpp b/src/VBox/Runtime/common/crypto/RTCrStoreCertExportAsPem.cpp new file mode 100644 index 00000000..30fa42f9 --- /dev/null +++ b/src/VBox/Runtime/common/crypto/RTCrStoreCertExportAsPem.cpp @@ -0,0 +1,137 @@ +/* $Id: RTCrStoreCertExportAsPem.cpp $ */ +/** @file + * IPRT - Cryptographic (Certificate) Store, RTCrStoreCertExportAsPem. + */ + +/* + * Copyright (C) 2006-2019 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/crypto/store.h> + +#include <iprt/assert.h> +#include <iprt/base64.h> +#include <iprt/dir.h> +#include <iprt/errcore.h> +#include <iprt/mem.h> +#include <iprt/stream.h> + + + +RTDECL(int) RTCrStoreCertExportAsPem(RTCRSTORE hStore, uint32_t fFlags, const char *pszFilename) +{ + /* + * Validate input. + */ + AssertReturn(!fFlags, VERR_INVALID_FLAGS); + + /* + * Start the enumeration first as this validates the store handle. + */ + RTCRSTORECERTSEARCH Search; + int rc = RTCrStoreCertFindAll(hStore, &Search); + if (RT_SUCCESS(rc)) + { + /* + * Open the file for writing. + * + * Note! We must use text and no binary here, because the base-64 API + * below will use host specific EOL markers, not CRLF as PEM + * specifies. + */ + PRTSTREAM hStrm; + rc = RTStrmOpen(pszFilename, "w", &hStrm); + if (RT_SUCCESS(rc)) + { + /* + * Enumerate the certificates in the store, writing them out one by one. + */ + size_t cbBase64 = 0; + char *pszBase64 = NULL; + PCRTCRCERTCTX pCertCtx; + while ((pCertCtx = RTCrStoreCertSearchNext(hStore, &Search)) != NULL) + { + const char *pszMarker; + switch (pCertCtx->fFlags & RTCRCERTCTX_F_ENC_MASK) + { + case RTCRCERTCTX_F_ENC_X509_DER: pszMarker = "CERTIFICATE"; break; + case RTCRCERTCTX_F_ENC_TAF_DER: pszMarker = "TRUST ANCHOR"; break; + default: pszMarker = NULL; break; + } + if (pszMarker && pCertCtx->cbEncoded > 0) + { + /* + * Do the base64 conversion first. + */ + size_t cchEncoded = RTBase64EncodedLength(pCertCtx->cbEncoded); + if (cchEncoded < cbBase64) + { /* likely */ } + else + { + size_t cbNew = RT_ALIGN(cchEncoded + 64, 128); + void *pvNew = RTMemRealloc(pszBase64, cbNew); + if (!pvNew) + { + rc = VERR_NO_MEMORY; + break; + } + cbBase64 = cbNew; + pszBase64 = (char *)pvNew; + } + rc = RTBase64Encode(pCertCtx->pabEncoded, pCertCtx->cbEncoded, pszBase64, cbBase64, &cchEncoded); + if (RT_FAILURE(rc)) + break; + + RTStrmPrintf(hStrm, "-----BEGIN %s-----\n", pszMarker); + RTStrmWrite(hStrm, pszBase64, cchEncoded); + rc = RTStrmPrintf(hStrm, "\n-----END %s-----\n", pszMarker); + if (RT_FAILURE(rc)) + break; + } + + RTCrCertCtxRelease(pCertCtx); + } + if (pCertCtx) + RTCrCertCtxRelease(pCertCtx); + RTMemFree(pszBase64); + + /* + * Flush the output file before closing. + */ + int rc2 = RTStrmFlush(hStrm); + if (RT_FAILURE(rc2) && RT_SUCCESS(rc)) + rc = rc2; + RTStrmClearError(hStrm); /** @todo fix RTStrmClose... */ + rc2 = RTStrmClose(hStrm); + if (RT_FAILURE(rc2) && RT_SUCCESS(rc)) + rc = rc2; + } + + int rc2 = RTCrStoreCertSearchDestroy(hStore, &Search); AssertRC(rc2); + } + return rc; +} +RT_EXPORT_SYMBOL(RTCrStoreCertExportAsPem); + |