415 lines
13 KiB
C
415 lines
13 KiB
C
/*
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* File path.c - managing path in debugging environments
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*
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* Copyright (C) 2004, Eric Pouech
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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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "dbghelp_private.h"
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#include "winnls.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
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static inline BOOL is_sep(char ch) {return ch == '/' || ch == '\\';}
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static inline const char* file_name(const char* str)
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{
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const char* p;
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for (p = str + strlen(str) - 1; p >= str && !is_sep(*p); p--);
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return p + 1;
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}
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/******************************************************************
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* FindDebugInfoFile (DBGHELP.@)
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*
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*/
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HANDLE WINAPI FindDebugInfoFile(PCSTR FileName, PCSTR SymbolPath, PSTR DebugFilePath)
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{
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HANDLE h;
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h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (h == INVALID_HANDLE_VALUE)
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{
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if (!SearchPathA(SymbolPath, file_name(FileName), NULL, MAX_PATH, DebugFilePath, NULL))
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return NULL;
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h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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}
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return (h == INVALID_HANDLE_VALUE) ? NULL : h;
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}
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/******************************************************************
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* FindDebugInfoFileEx (DBGHELP.@)
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*
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*/
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HANDLE WINAPI FindDebugInfoFileEx(PCSTR FileName, PCSTR SymbolPath,
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PSTR DebugFilePath,
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PFIND_DEBUG_FILE_CALLBACK Callback,
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PVOID CallerData)
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{
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FIXME("(%s %s %p %p %p): stub\n",
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FileName, SymbolPath, DebugFilePath, Callback, CallerData);
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return NULL;
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}
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/******************************************************************
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* FindExecutableImage (DBGHELP.@)
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*
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*/
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HANDLE WINAPI FindExecutableImage(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath)
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{
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HANDLE h;
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if (!SearchPathA(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
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return NULL;
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h = CreateFileA(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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return (h == INVALID_HANDLE_VALUE) ? NULL : h;
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}
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/***********************************************************************
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* MakeSureDirectoryPathExists (DBGHELP.@)
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*/
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BOOL WINAPI MakeSureDirectoryPathExists(LPCSTR DirPath)
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{
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char path[MAX_PATH];
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const char *p = DirPath;
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int n;
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if (p[0] && p[1] == ':') p += 2;
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while (*p == '\\') p++; /* skip drive root */
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while ((p = strchr(p, '\\')) != NULL)
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{
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n = p - DirPath + 1;
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memcpy(path, DirPath, n);
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path[n] = '\0';
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if( !CreateDirectoryA(path, NULL) &&
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(GetLastError() != ERROR_ALREADY_EXISTS))
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return FALSE;
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p++;
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}
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if (GetLastError() == ERROR_ALREADY_EXISTS)
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SetLastError(ERROR_SUCCESS);
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return TRUE;
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}
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/******************************************************************
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* SymMatchFileName (DBGHELP.@)
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*
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*/
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BOOL WINAPI SymMatchFileName(char* file, char* match,
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char** filestop, char** matchstop)
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{
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char* fptr;
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char* mptr;
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TRACE("(%s %s %p %p)\n", file, match, filestop, matchstop);
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fptr = file + strlen(file) - 1;
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mptr = match + strlen(match) - 1;
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while (fptr >= file && mptr >= match)
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{
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if (toupper(*fptr) != toupper(*mptr) && !(is_sep(*fptr) && is_sep(*mptr)))
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break;
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fptr--; mptr--;
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}
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if (filestop) *filestop = fptr;
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if (matchstop) *matchstop = mptr;
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return mptr == match - 1;
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}
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static BOOL do_search(const char* file, char* buffer, BOOL recurse,
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PENUMDIRTREE_CALLBACK cb, void* user)
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{
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HANDLE h;
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WIN32_FIND_DATAA fd;
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unsigned pos;
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BOOL found = FALSE;
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pos = strlen(buffer);
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if (buffer[pos - 1] != '\\') buffer[pos++] = '\\';
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strcpy(buffer + pos, "*.*");
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if ((h = FindFirstFileA(buffer, &fd)) == INVALID_HANDLE_VALUE)
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return FALSE;
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/* doc doesn't specify how the tree is enumerated...
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* doing a depth first based on, but may be wrong
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*/
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do
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{
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if (!strcmp(fd.cFileName, ".") || !strcmp(fd.cFileName, "..")) continue;
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strcpy(buffer + pos, fd.cFileName);
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if (recurse && (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
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found = do_search(file, buffer, TRUE, cb, user);
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else if (SymMatchFileName(buffer, (char*)file, NULL, NULL))
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{
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if (!cb || cb(buffer, user)) found = TRUE;
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}
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} while (!found && FindNextFileA(h, &fd));
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if (!found) buffer[--pos] = '\0';
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FindClose(h);
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return found;
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}
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/***********************************************************************
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* SearchTreeForFile (DBGHELP.@)
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*/
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BOOL WINAPI SearchTreeForFile(PCSTR root, PCSTR file, PSTR buffer)
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{
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TRACE("(%s, %s, %p)\n",
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debugstr_a(root), debugstr_a(file), buffer);
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strcpy(buffer, root);
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return do_search(file, buffer, TRUE, NULL, NULL);
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}
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/******************************************************************
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* EnumDirTree (DBGHELP.@)
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*
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*
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*/
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BOOL WINAPI EnumDirTree(HANDLE hProcess, PCSTR root, PCSTR file,
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LPSTR buffer, PENUMDIRTREE_CALLBACK cb, PVOID user)
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{
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TRACE("(%p %s %s %p %p %p)\n", hProcess, root, file, buffer, cb, user);
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strcpy(buffer, root);
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return do_search(file, buffer, TRUE, cb, user);
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}
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struct sffip
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{
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enum module_type kind;
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/* pe: id -> DWORD:timestamp
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* two -> size of image (from PE header)
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* pdb: id -> PDB signature
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* I think either DWORD:timestamp or GUID:guid depending on PDB version
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* two -> PDB age ???
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* elf: id -> DWORD:CRC 32 of ELF image (Wine only)
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*/
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PVOID id;
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DWORD two;
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DWORD three;
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DWORD flags;
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PFINDFILEINPATHCALLBACK cb;
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void* user;
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};
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/* checks that buffer (as found by matching the name) matches the info
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* (information is based on file type)
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* returns TRUE when file is found, FALSE to continue searching
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* (NB this is the opposite conventions as for SymFindFileInPathProc)
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*/
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static BOOL CALLBACK sffip_cb(LPCSTR buffer, void* user)
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{
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struct sffip* s = (struct sffip*)user;
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DWORD size, checksum;
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/* FIXME: should check that id/two/three match the file pointed
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* by buffer
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*/
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switch (s->kind)
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{
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case DMT_PE:
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{
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HANDLE hFile, hMap;
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void* mapping;
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DWORD timestamp;
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timestamp = ~(DWORD_PTR)s->id;
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size = ~s->two;
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hFile = CreateFileA(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile == INVALID_HANDLE_VALUE) return FALSE;
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if ((hMap = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
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{
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if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
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{
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IMAGE_NT_HEADERS* nth = RtlImageNtHeader(mapping);
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timestamp = nth->FileHeader.TimeDateStamp;
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size = nth->OptionalHeader.SizeOfImage;
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UnmapViewOfFile(mapping);
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}
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CloseHandle(hMap);
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}
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CloseHandle(hFile);
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if (timestamp != (DWORD_PTR)s->id || size != s->two)
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{
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WARN("Found %s, but wrong size or timestamp\n", buffer);
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return FALSE;
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}
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}
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break;
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case DMT_ELF:
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if (elf_fetch_file_info(buffer, 0, &size, &checksum))
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{
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if (checksum != (DWORD_PTR)s->id)
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{
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WARN("Found %s, but wrong checksums: %08lx %08lx\n",
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buffer, checksum, (DWORD_PTR)s->id);
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return FALSE;
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}
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}
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else
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{
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WARN("Couldn't read %s\n", buffer);
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return FALSE;
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}
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break;
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case DMT_PDB:
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{
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struct pdb_lookup pdb_lookup;
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pdb_lookup.filename = buffer;
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if (!pdb_fetch_file_info(&pdb_lookup)) return FALSE;
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switch (pdb_lookup.kind)
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{
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case PDB_JG:
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if (s->flags & SSRVOPT_GUIDPTR)
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{
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WARN("Found %s, but wrong PDB version\n", buffer);
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return FALSE;
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}
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if (pdb_lookup.u.jg.timestamp != (DWORD_PTR)s->id)
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{
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WARN("Found %s, but wrong signature: %08lx %08lx\n",
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buffer, pdb_lookup.u.jg.timestamp, (DWORD_PTR)s->id);
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return FALSE;
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}
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break;
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case PDB_DS:
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if (!(s->flags & SSRVOPT_GUIDPTR))
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{
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WARN("Found %s, but wrong PDB version\n", buffer);
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return FALSE;
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}
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if (!(memcmp(&pdb_lookup.u.ds.guid, (GUID*)s->id, sizeof(GUID))))
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{
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WARN("Found %s, but wrong GUID: %s %s\n",
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buffer, debugstr_guid(&pdb_lookup.u.ds.guid),
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debugstr_guid((GUID*)s->id));
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return FALSE;
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}
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break;
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}
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if (pdb_lookup.age != s->two)
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{
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WARN("Found %s, but wrong age: %08lx %08lx\n",
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buffer, pdb_lookup.age, s->two);
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return FALSE;
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}
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}
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break;
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default:
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FIXME("What the heck??\n");
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return FALSE;
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}
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/* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
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* convention to stop/continue enumeration. sigh.
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*/
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return !(s->cb)((char*)buffer, s->user);
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}
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/******************************************************************
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* SymFindFileInPath (DBGHELP.@)
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*
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*/
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BOOL WINAPI SymFindFileInPath(HANDLE hProcess, PCSTR inSearchPath, PCSTR full_path,
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PVOID id, DWORD two, DWORD three, DWORD flags,
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LPSTR buffer, PFINDFILEINPATHCALLBACK cb,
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PVOID user)
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{
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struct sffip s;
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struct process* pcs = process_find_by_handle(hProcess);
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char tmp[MAX_PATH];
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char* ptr;
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const char* filename;
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const char* searchPath = inSearchPath;
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TRACE("(%p %s %s %p %08lx %08lx %08lx %p %p %p)\n",
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hProcess, searchPath, full_path, id, two, three, flags,
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buffer, cb, user);
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if (!pcs) return FALSE;
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if (!searchPath)
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{
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unsigned len = WideCharToMultiByte(CP_ACP, 0, pcs->search_path, -1, NULL, 0, NULL, NULL);
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char* buf;
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searchPath = buf = HeapAlloc(GetProcessHeap(), 0, len);
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if (!searchPath) return FALSE;
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WideCharToMultiByte(CP_ACP, 0, pcs->search_path, -1, buf, len, NULL, NULL);
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}
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s.id = id;
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s.two = two;
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s.three = three;
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s.flags = flags;
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s.cb = cb;
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s.user = user;
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filename = file_name(full_path);
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s.kind = module_get_type_by_name(filename);
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/* first check full path to file */
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if (sffip_cb(full_path, &s))
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{
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strcpy(buffer, full_path);
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if (searchPath != inSearchPath)
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HeapFree(GetProcessHeap(), 0, (char*)searchPath);
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return TRUE;
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}
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while (searchPath)
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{
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ptr = strchr(searchPath, ';');
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if (ptr)
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{
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memcpy(tmp, searchPath, ptr - searchPath);
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tmp[ptr - searchPath] = 0;
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searchPath = ptr + 1;
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}
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else
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{
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strcpy(tmp, searchPath);
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searchPath = NULL;
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}
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if (do_search(filename, tmp, FALSE, sffip_cb, &s))
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{
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strcpy(buffer, tmp);
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if (searchPath != inSearchPath)
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HeapFree(GetProcessHeap(), 0, (char*)searchPath);
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return TRUE;
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}
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}
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if (searchPath != inSearchPath)
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HeapFree(GetProcessHeap(), 0, (char*)searchPath);
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return FALSE;
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}
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