4 * Copyright 1998 Patrik Stridvall
5 * Copyright 2003 Mike McCormack
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(imagehlp);
35 * These functions are partially documented at:
36 * http://www.cs.auckland.ac.nz/~pgut001/pubs/authenticode.txt
39 /***********************************************************************
40 * IMAGEHLP_GetSecurityDirOffset (INTERNAL)
42 * Read a file's PE header, and return the offset and size of the
45 static BOOL IMAGEHLP_GetSecurityDirOffset( HANDLE handle,
46 DWORD *pdwOfs, DWORD *pdwSize )
48 IMAGE_DOS_HEADER dos_hdr;
49 IMAGE_NT_HEADERS nt_hdr;
52 IMAGE_DATA_DIRECTORY *sd;
54 TRACE("handle %p\n", handle );
56 /* read the DOS header */
57 count = SetFilePointer( handle, 0, NULL, FILE_BEGIN );
58 if( count == INVALID_SET_FILE_POINTER )
61 r = ReadFile( handle, &dos_hdr, sizeof dos_hdr, &count, NULL );
64 if( count != sizeof dos_hdr )
67 /* read the PE header */
68 count = SetFilePointer( handle, dos_hdr.e_lfanew, NULL, FILE_BEGIN );
69 if( count == INVALID_SET_FILE_POINTER )
72 r = ReadFile( handle, &nt_hdr, sizeof nt_hdr, &count, NULL );
75 if( count != sizeof nt_hdr )
78 sd = &nt_hdr.OptionalHeader.
79 DataDirectory[IMAGE_FILE_SECURITY_DIRECTORY];
81 TRACE("size = %x addr = %x\n", sd->Size, sd->VirtualAddress);
83 *pdwOfs = sd->VirtualAddress;
88 /***********************************************************************
89 * IMAGEHLP_GetCertificateOffset (INTERNAL)
91 * Read a file's PE header, and return the offset and size of the
94 static BOOL IMAGEHLP_GetCertificateOffset( HANDLE handle, DWORD num,
95 DWORD *pdwOfs, DWORD *pdwSize )
97 DWORD size, count, offset, len, sd_VirtualAddr;
100 r = IMAGEHLP_GetSecurityDirOffset( handle, &sd_VirtualAddr, &size );
105 /* take the n'th certificate */
108 /* read the length of the current certificate */
109 count = SetFilePointer( handle, sd_VirtualAddr + offset,
111 if( count == INVALID_SET_FILE_POINTER )
113 r = ReadFile( handle, &len, sizeof len, &count, NULL );
116 if( count != sizeof len )
119 /* check the certificate is not too big or too small */
120 if( len < sizeof len )
122 if( len > (size-offset) )
127 /* calculate the offset of the next certificate */
133 *pdwOfs = sd_VirtualAddr + offset;
136 TRACE("len = %x addr = %x\n", len, sd_VirtualAddr + offset);
142 /***********************************************************************
143 * ImageAddCertificate (IMAGEHLP.@)
146 BOOL WINAPI ImageAddCertificate(
147 HANDLE FileHandle, PWIN_CERTIFICATE Certificate, PDWORD Index)
149 FIXME("(%p, %p, %p): stub\n",
150 FileHandle, Certificate, Index
152 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
156 /***********************************************************************
157 * ImageEnumerateCertificates (IMAGEHLP.@)
159 BOOL WINAPI ImageEnumerateCertificates(
160 HANDLE handle, WORD TypeFilter, PDWORD CertificateCount,
161 PDWORD Indices, DWORD IndexCount)
163 DWORD size, count, offset, sd_VirtualAddr, index;
165 const size_t cert_hdr_size = sizeof hdr - sizeof hdr.bCertificate;
168 TRACE("%p %hd %p %p %d\n",
169 handle, TypeFilter, CertificateCount, Indices, IndexCount);
171 r = IMAGEHLP_GetSecurityDirOffset( handle, &sd_VirtualAddr, &size );
177 *CertificateCount = 0;
178 while( offset < size )
180 /* read the length of the current certificate */
181 count = SetFilePointer( handle, sd_VirtualAddr + offset,
183 if( count == INVALID_SET_FILE_POINTER )
185 r = ReadFile( handle, &hdr, cert_hdr_size, &count, NULL );
188 if( count != cert_hdr_size )
191 TRACE("Size = %08x id = %08hx\n",
192 hdr.dwLength, hdr.wCertificateType );
194 /* check the certificate is not too big or too small */
195 if( hdr.dwLength < cert_hdr_size )
197 if( hdr.dwLength > (size-offset) )
200 if( (TypeFilter == CERT_SECTION_TYPE_ANY) ||
201 (TypeFilter == hdr.wCertificateType) )
203 (*CertificateCount)++;
204 if(Indices && *CertificateCount <= IndexCount)
208 /* next certificate */
209 offset += hdr.dwLength;
216 /***********************************************************************
217 * ImageGetCertificateData (IMAGEHLP.@)
219 * FIXME: not sure that I'm dealing with the Index the right way
221 BOOL WINAPI ImageGetCertificateData(
222 HANDLE handle, DWORD Index,
223 PWIN_CERTIFICATE Certificate, PDWORD RequiredLength)
225 DWORD r, offset, ofs, size, count;
227 TRACE("%p %d %p %p\n", handle, Index, Certificate, RequiredLength);
229 if( !IMAGEHLP_GetCertificateOffset( handle, Index, &ofs, &size ) )
234 *RequiredLength = size;
238 if( *RequiredLength < size )
240 *RequiredLength = size;
241 SetLastError( ERROR_INSUFFICIENT_BUFFER );
245 *RequiredLength = size;
247 offset = SetFilePointer( handle, ofs, NULL, FILE_BEGIN );
248 if( offset == INVALID_SET_FILE_POINTER )
251 r = ReadFile( handle, Certificate, size, &count, NULL );
262 /***********************************************************************
263 * ImageGetCertificateHeader (IMAGEHLP.@)
265 BOOL WINAPI ImageGetCertificateHeader(
266 HANDLE handle, DWORD index, PWIN_CERTIFICATE pCert)
268 DWORD r, offset, ofs, size, count;
269 const size_t cert_hdr_size = sizeof *pCert - sizeof pCert->bCertificate;
271 TRACE("%p %d %p\n", handle, index, pCert);
273 if( !IMAGEHLP_GetCertificateOffset( handle, index, &ofs, &size ) )
276 if( size < cert_hdr_size )
279 offset = SetFilePointer( handle, ofs, NULL, FILE_BEGIN );
280 if( offset == INVALID_SET_FILE_POINTER )
283 r = ReadFile( handle, pCert, cert_hdr_size, &count, NULL );
286 if( count != cert_hdr_size )
294 /***********************************************************************
295 * ImageGetDigestStream (IMAGEHLP.@)
297 BOOL WINAPI ImageGetDigestStream(
298 HANDLE FileHandle, DWORD DigestLevel,
299 DIGEST_FUNCTION DigestFunction, DIGEST_HANDLE DigestHandle)
301 FIXME("(%p, %d, %p, %p): stub\n",
302 FileHandle, DigestLevel, DigestFunction, DigestHandle
304 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
308 /***********************************************************************
309 * ImageRemoveCertificate (IMAGEHLP.@)
311 BOOL WINAPI ImageRemoveCertificate(HANDLE FileHandle, DWORD Index)
313 FIXME("(%p, %d): stub\n", FileHandle, Index);
314 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);