390 lines
10 KiB
C
390 lines
10 KiB
C
/*
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* Dump a shortcut (lnk) file
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*
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* Copyright 2005 Mike McCormack
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include "winedump.h"
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#include <fcntl.h>
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "pshpack1.h"
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#define SCF_PIDL 1
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#define SCF_LOCATION 2
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#define SCF_DESCRIPTION 4
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#define SCF_RELATIVE 8
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#define SCF_WORKDIR 0x10
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#define SCF_ARGS 0x20
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#define SCF_CUSTOMICON 0x40
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#define SCF_UNICODE 0x80
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#define SCF_PRODUCT 0x800
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#define SCF_COMPONENT 0x1000
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typedef struct _LINK_HEADER
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{
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DWORD dwSize; /* 0x00 size of the header - 0x4c */
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GUID MagicGuid; /* 0x04 is CLSID_ShellLink */
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DWORD dwFlags; /* 0x14 describes elements following */
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DWORD dwFileAttr; /* 0x18 attributes of the target file */
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FILETIME Time1; /* 0x1c */
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FILETIME Time2; /* 0x24 */
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FILETIME Time3; /* 0x2c */
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DWORD dwFileLength; /* 0x34 File length */
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DWORD nIcon; /* 0x38 icon number */
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DWORD fStartup; /* 0x3c startup type */
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DWORD wHotKey; /* 0x40 hotkey */
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DWORD Unknown5; /* 0x44 */
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DWORD Unknown6; /* 0x48 */
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} LINK_HEADER, * PLINK_HEADER;
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typedef struct tagLINK_ADVERTISEINFO
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{
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DWORD size;
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DWORD magic;
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CHAR bufA[MAX_PATH];
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WCHAR bufW[MAX_PATH];
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} LINK_ADVERTISEINFO;
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typedef struct _LOCATION_INFO
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{
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DWORD dwTotalSize;
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DWORD dwHeaderSize;
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DWORD dwFlags;
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DWORD dwVolTableOfs;
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DWORD dwLocalPathOfs;
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DWORD dwNetworkVolTableOfs;
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DWORD dwFinalPathOfs;
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} LOCATION_INFO;
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typedef struct _LOCAL_VOLUME_INFO
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{
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DWORD dwSize;
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DWORD dwType;
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DWORD dwVolSerial;
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DWORD dwVolLabelOfs;
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} LOCAL_VOLUME_INFO;
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typedef struct lnk_string_tag
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{
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unsigned short size;
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union {
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unsigned short w[1];
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unsigned char a[1];
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} str;
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} lnk_string;
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#include "poppack.h"
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static unsigned offset;
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static const void* fetch_block(void)
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{
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const unsigned* u;
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const void* ret;
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if (!(u = PRD(offset, sizeof(*u)))) return 0;
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if ((ret = PRD(offset, *u))) offset += *u;
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return ret;
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}
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static const lnk_string* fetch_string(int unicode)
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{
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const unsigned short* s;
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unsigned short len;
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const void* ret;
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if (!(s = PRD(offset, sizeof(*s)))) return 0;
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len = *s * (unicode ? sizeof(WCHAR) : sizeof(char));
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if ((ret = PRD(offset, sizeof(*s) + len))) offset += sizeof(*s) + len;
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return ret;
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}
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static int dump_pidl(void)
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{
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const lnk_string *pidl;
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int i, n = 0, sz = 0;
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pidl = fetch_string(FALSE);
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if (!pidl)
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return -1;
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printf("PIDL\n");
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printf("----\n\n");
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while(sz<pidl->size)
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{
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lnk_string *segment = (lnk_string*) &pidl->str.a[sz];
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if(!segment->size)
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break;
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sz+=segment->size;
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if(sz>pidl->size)
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{
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printf("bad pidl\n");
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break;
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}
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n++;
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printf("segment %d (%2d bytes) : ",n,segment->size);
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for(i=0; i<segment->size; i++)
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printf("%02x ",segment->str.a[i]);
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printf("\n");
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}
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printf("\n");
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return 0;
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}
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static int dump_string(const char *what, int unicode)
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{
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const lnk_string *data;
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unsigned sz;
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data = fetch_string(unicode);
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if (!data)
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return -1;
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printf("%s : ", what);
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sz = data->size;
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if (unicode)
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while (sz) printf("%c", data->str.w[data->size - sz--]);
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else
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while (sz) printf("%c", data->str.a[data->size - sz--]);
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printf("\n");
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return 0;
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}
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static int dump_location(void)
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{
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const LOCATION_INFO *loc;
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const char *p;
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loc = fetch_block();
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if (!loc)
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return -1;
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p = (const char*)loc;
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printf("Location\n");
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printf("--------\n\n");
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printf("Total size = %d\n", loc->dwTotalSize);
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printf("Header size = %d\n", loc->dwHeaderSize);
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printf("Flags = %08x\n", loc->dwFlags);
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/* dump out information about the volume the link points to */
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printf("Volume ofs = %08x ", loc->dwVolTableOfs);
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if (loc->dwVolTableOfs && (loc->dwVolTableOfs<loc->dwTotalSize))
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{
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const LOCAL_VOLUME_INFO *vol = (const LOCAL_VOLUME_INFO *)&p[loc->dwVolTableOfs];
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printf("size %d type %d serial %08x label %d ",
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vol->dwSize, vol->dwType, vol->dwVolSerial, vol->dwVolLabelOfs);
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if(vol->dwVolLabelOfs)
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printf("(\"%s\")", &p[loc->dwVolTableOfs + vol->dwVolLabelOfs]);
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}
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printf("\n");
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/* dump out the path the link points to */
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printf("LocalPath ofs = %08x ", loc->dwLocalPathOfs);
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if( loc->dwLocalPathOfs && (loc->dwLocalPathOfs < loc->dwTotalSize) )
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printf("(\"%s\")", &p[loc->dwLocalPathOfs]);
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printf("\n");
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printf("Net Path ofs = %08x\n", loc->dwNetworkVolTableOfs);
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printf("Final Path = %08x ", loc->dwFinalPathOfs);
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if( loc->dwFinalPathOfs && (loc->dwFinalPathOfs < loc->dwTotalSize) )
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printf("(\"%s\")", &p[loc->dwFinalPathOfs]);
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printf("\n");
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printf("\n");
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return 0;
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}
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static const unsigned char table_dec85[0x80] = {
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0x00,0xff,0xff,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0xff,
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0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,0x14,0x15,0xff,0xff,0xff,0x16,0xff,0x17,
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0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
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0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,0x32,0x33,0xff,0x34,0x35,0x36,
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0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,0x40,0x41,0x42,0x43,0x44,0x45,0x46,
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0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,0x51,0x52,0xff,0x53,0x54,0xff,
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};
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static int base85_to_guid( const char *str, LPGUID guid )
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{
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DWORD i, val = 0, base = 1, *p;
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unsigned char ch;
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p = (DWORD*) guid;
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for( i=0; i<20; i++ )
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{
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if( (i%5) == 0 )
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{
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val = 0;
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base = 1;
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}
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ch = str[i];
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if( ch >= 0x80 )
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return 0;
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val += table_dec85[ch] * base;
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if( table_dec85[ch] == 0xff )
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return 0;
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if( (i%5) == 4 )
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p[i/5] = val;
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base *= 85;
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}
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return 1;
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}
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static int dump_advertise_info(const char *type)
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{
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const LINK_ADVERTISEINFO *avt;
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avt = fetch_block();
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if (!avt)
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return -1;
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printf("Advertise Info\n");
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printf("--------------\n\n");
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printf("magic = %x\n", avt->magic);
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printf("%s = %s\n", type, avt->bufA);
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if (avt->magic == 0xa0000006)
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{
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char comp_str[40];
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const char *feat, *comp, *prod_str, *feat_str;
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GUID guid;
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if (base85_to_guid(avt->bufA, &guid))
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prod_str = get_guid_str( &guid );
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else
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prod_str = "?";
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comp = &avt->bufA[20];
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feat = strchr(comp,'>');
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if (!feat)
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feat = strchr(comp,'<');
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if (feat)
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{
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memcpy( comp_str, comp, feat - comp );
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comp_str[feat-comp] = 0;
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}
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else
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{
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strcpy( comp_str, "?" );
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}
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if (feat && feat[0] == '>' && base85_to_guid( &feat[1], &guid ))
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feat_str = get_guid_str( &guid );
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else
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feat_str = "";
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printf(" product: %s\n", prod_str);
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printf(" component: %s\n", comp_str );
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printf(" feature: %s\n", feat_str);
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}
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printf("\n");
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return 0;
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}
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static const GUID CLSID_ShellLink = {0x00021401L, 0, 0, {0xC0,0,0,0,0,0,0,0x46}};
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enum FileSig get_kind_lnk(void)
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{
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const LINK_HEADER* hdr;
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hdr = PRD(0, sizeof(*hdr));
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if (hdr && hdr->dwSize == sizeof(LINK_HEADER) &&
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!memcmp(&hdr->MagicGuid, &CLSID_ShellLink, sizeof(GUID)))
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return SIG_LNK;
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return SIG_UNKNOWN;
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}
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void lnk_dump(void)
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{
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const LINK_HEADER* hdr;
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offset = 0;
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hdr = fetch_block();
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printf("Header\n");
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printf("------\n\n");
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printf("Size: %04x\n", hdr->dwSize);
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printf("GUID: %s\n", get_guid_str(&hdr->MagicGuid));
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printf("FileAttr: %08x\n", hdr->dwFileAttr);
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printf("FileLength: %08x\n", hdr->dwFileLength);
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printf("nIcon: %d\n", hdr->nIcon);
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printf("Startup: %d\n", hdr->fStartup);
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printf("HotKey: %08x\n", hdr->wHotKey);
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printf("Unknown5: %08x\n", hdr->Unknown5);
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printf("Unknown6: %08x\n", hdr->Unknown6);
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/* dump out all the flags */
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printf("Flags: %04x ( ", hdr->dwFlags);
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#define FLAG(x) if(hdr->dwFlags & SCF_##x) printf("%s ",#x);
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FLAG(PIDL)
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FLAG(LOCATION)
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FLAG(DESCRIPTION)
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FLAG(RELATIVE)
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FLAG(WORKDIR)
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FLAG(ARGS)
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FLAG(CUSTOMICON)
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FLAG(UNICODE)
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FLAG(PRODUCT)
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FLAG(COMPONENT)
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#undef FLAG
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printf(")\n");
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printf("Length: %04x\n", hdr->dwFileLength);
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printf("\n");
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if (hdr->dwFlags & SCF_PIDL)
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dump_pidl();
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if (hdr->dwFlags & SCF_LOCATION)
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dump_location();
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if (hdr->dwFlags & SCF_DESCRIPTION)
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dump_string("Description", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_RELATIVE)
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dump_string("Relative path", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_WORKDIR)
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dump_string("Working directory", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_ARGS)
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dump_string("Arguments", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_CUSTOMICON)
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dump_string("Icon path", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_PRODUCT)
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dump_advertise_info("product");
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if (hdr->dwFlags & SCF_COMPONENT)
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dump_advertise_info("msi string");
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}
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