1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
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);
|
