388 lines
9.3 KiB
C
388 lines
9.3 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 <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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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 void guid_to_string(LPGUID guid, char *str)
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{
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sprintf(str, "{%08lx-%04x-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X}",
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guid->Data1, guid->Data2, guid->Data3,
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guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
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guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7]);
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}
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/* the size is a short integer */
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static void* load_pidl(int fd)
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{
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int r;
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unsigned char *data;
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unsigned short size = 0;
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r = read( fd, &size, sizeof size );
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if (r != sizeof size)
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return NULL;
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if (size<sizeof size)
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return NULL;
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data = malloc(size + sizeof size);
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memcpy(data, &size, sizeof size);
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r = read( fd, data + sizeof size, size );
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if (r != size)
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{
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free(data);
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return NULL;
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}
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return (void*)data;
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}
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/* size is an integer */
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static void* load_long_section(int fd)
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{
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int r, size = 0;
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unsigned char *data;
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r = read( fd, &size, sizeof size );
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if (r != sizeof size)
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return NULL;
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if (size<sizeof size)
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return NULL;
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data = malloc(size);
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memcpy(data, &size, sizeof size);
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r = read( fd, data + sizeof size, size - sizeof size);
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if (r != (size - sizeof size))
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{
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free(data);
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return NULL;
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}
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return (void*)data;
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}
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/* the size is a character count in a short integer */
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static lnk_string* load_string(int fd, int unicode)
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{
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int r;
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lnk_string *data;
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unsigned short size = 0, bytesize;
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r = read( fd, &size, sizeof size );
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if (r != sizeof size)
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return NULL;
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if (size < sizeof size)
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return NULL;
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bytesize = size;
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if (unicode)
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bytesize *= sizeof(WCHAR);
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data = malloc(sizeof *data + bytesize);
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data->size = size;
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if (unicode)
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data->str.w[size] = 0;
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else
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data->str.a[size] = 0;
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r = read(fd, &data->str, bytesize);
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if (r != bytesize)
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{
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free(data);
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return NULL;
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}
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return data;
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}
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static int dump_pidl(int fd)
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{
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lnk_string *pidl;
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int i, n = 0, sz = 0;
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pidl = load_pidl(fd);
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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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free(pidl);
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return 0;
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}
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static void print_unicode_string(unsigned short *str)
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{
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while(*str)
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{
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printf("%c", *str);
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str++;
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}
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printf("\n");
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}
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static int dump_string(int fd, char *what, int unicode)
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{
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lnk_string *data;
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data = load_string(fd, unicode);
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if (!data)
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return -1;
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printf("%s : ", what);
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if (unicode)
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print_unicode_string(data->str.w);
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else
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printf("%s",data->str.a);
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printf("\n");
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free(data);
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return 0;
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}
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static int dump_location(int fd)
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{
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LOCATION_INFO *loc;
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char *p;
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loc = load_long_section(fd);
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if (!loc)
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return -1;
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p = (char*)loc;
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printf("Location\n");
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printf("--------\n\n");
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printf("Total size = %ld\n", loc->dwTotalSize);
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printf("Header size = %ld\n", loc->dwHeaderSize);
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printf("Flags = %08lx\n", loc->dwFlags);
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/* dump out information about the volume the link points to */
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printf("Volume ofs = %08lx ", loc->dwVolTableOfs);
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if (loc->dwVolTableOfs && (loc->dwVolTableOfs<loc->dwTotalSize))
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{
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LOCAL_VOLUME_INFO *vol = (LOCAL_VOLUME_INFO *) &p[loc->dwVolTableOfs];
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printf("size %ld type %ld serial %08lx label %ld ",
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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 = %08lx ", 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 = %08lx\n", loc->dwNetworkVolTableOfs);
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printf("Final Path = %08lx ", 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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free(loc);
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return 0;
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}
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static int dump_advertise_info(int fd, char *type)
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{
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LINK_ADVERTISEINFO *avt;
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avt = load_long_section(fd);
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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 = %lx\n", avt->magic);
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printf("%s = %s\n", type, avt->bufA);
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printf("\n");
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return 0;
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}
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static int dump_lnk_fd(int fd)
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{
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LINK_HEADER *hdr;
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char guid[40];
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hdr = load_long_section( fd );
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if (!hdr)
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return -1;
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guid_to_string(&hdr->MagicGuid, guid);
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printf("Header\n");
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printf("------\n\n");
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printf("Size: %04lx\n", hdr->dwSize);
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printf("GUID: %s\n", guid);
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/* dump out all the flags */
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printf("Flags: %04lx ( ", 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: %04lx\n", hdr->dwFileLength);
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printf("\n");
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if (hdr->dwFlags & SCF_PIDL)
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dump_pidl(fd);
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if (hdr->dwFlags & SCF_LOCATION)
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dump_location(fd);
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if (hdr->dwFlags & SCF_DESCRIPTION)
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dump_string(fd, "Description", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_RELATIVE)
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dump_string(fd, "Relative path", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_WORKDIR)
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dump_string(fd, "Working directory", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_ARGS)
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dump_string(fd, "Arguments", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_CUSTOMICON)
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dump_string(fd, "Icon path", hdr->dwFlags & SCF_UNICODE);
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if (hdr->dwFlags & SCF_PRODUCT)
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dump_advertise_info(fd, "product");
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if (hdr->dwFlags & SCF_COMPONENT)
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dump_advertise_info(fd, "component");
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return 0;
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}
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int dump_lnk(const char *emf)
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{
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int fd;
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fd = open(emf,O_RDONLY);
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if (fd<0)
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return -1;
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dump_lnk_fd(fd);
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close(fd);
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return 0;
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}
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