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wine/dlls/dbghelp/path.c

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/*
* File path.c - managing path in debugging environments
*
* Copyright (C) 2004, Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "dbghelp_private.h"
#include "winnls.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
static inline BOOL is_sep(char ch) {return ch == '/' || ch == '\\';}
static inline const char* file_name(const char* str)
{
const char* p;
for (p = str + strlen(str) - 1; p >= str && !is_sep(*p); p--);
return p + 1;
}
/******************************************************************
* FindDebugInfoFile (DBGHELP.@)
*
*/
HANDLE WINAPI FindDebugInfoFile(PCSTR FileName, PCSTR SymbolPath, PSTR DebugFilePath)
{
HANDLE h;
h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE)
{
if (!SearchPathA(SymbolPath, file_name(FileName), NULL, MAX_PATH, DebugFilePath, NULL))
return NULL;
h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
}
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindDebugInfoFileEx (DBGHELP.@)
*
*/
HANDLE WINAPI FindDebugInfoFileEx(PCSTR FileName, PCSTR SymbolPath,
PSTR DebugFilePath,
PFIND_DEBUG_FILE_CALLBACK Callback,
PVOID CallerData)
{
FIXME("(%s %s %p %p %p): stub\n",
FileName, SymbolPath, DebugFilePath, Callback, CallerData);
return NULL;
}
/******************************************************************
* FindExecutableImageExW (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImageExW(PCWSTR FileName, PCWSTR SymbolPath, PWSTR ImageFilePath,
PFIND_EXE_FILE_CALLBACKW Callback, void* user)
{
HANDLE h;
if (Callback) FIXME("Unsupported callback yet\n");
if (!SearchPathW(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
return NULL;
h = CreateFileW(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindExecutableImageEx (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImageEx(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath,
PFIND_EXE_FILE_CALLBACK Callback, void* user)
{
HANDLE h;
if (Callback) FIXME("Unsupported callback yet\n");
if (!SearchPathA(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
return NULL;
h = CreateFileA(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindExecutableImage (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImage(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath)
{
return FindExecutableImageEx(FileName, SymbolPath, ImageFilePath, NULL, NULL);
}
/***********************************************************************
* MakeSureDirectoryPathExists (DBGHELP.@)
*/
BOOL WINAPI MakeSureDirectoryPathExists(LPCSTR DirPath)
{
char path[MAX_PATH];
const char *p = DirPath;
int n;
if (p[0] && p[1] == ':') p += 2;
while (*p == '\\') p++; /* skip drive root */
while ((p = strchr(p, '\\')) != NULL)
{
n = p - DirPath + 1;
memcpy(path, DirPath, n);
path[n] = '\0';
if( !CreateDirectoryA(path, NULL) &&
(GetLastError() != ERROR_ALREADY_EXISTS))
return FALSE;
p++;
}
if (GetLastError() == ERROR_ALREADY_EXISTS)
SetLastError(ERROR_SUCCESS);
return TRUE;
}
/******************************************************************
* SymMatchFileName (DBGHELP.@)
*
*/
BOOL WINAPI SymMatchFileName(char* file, char* match,
char** filestop, char** matchstop)
{
char* fptr;
char* mptr;
TRACE("(%s %s %p %p)\n", file, match, filestop, matchstop);
fptr = file + strlen(file) - 1;
mptr = match + strlen(match) - 1;
while (fptr >= file && mptr >= match)
{
if (toupper(*fptr) != toupper(*mptr) && !(is_sep(*fptr) && is_sep(*mptr)))
break;
fptr--; mptr--;
}
if (filestop) *filestop = fptr;
if (matchstop) *matchstop = mptr;
return mptr == match - 1;
}
static BOOL do_search(const char* file, char* buffer, BOOL recurse,
PENUMDIRTREE_CALLBACK cb, void* user)
{
HANDLE h;
WIN32_FIND_DATAA fd;
unsigned pos;
BOOL found = FALSE;
pos = strlen(buffer);
if (buffer[pos - 1] != '\\') buffer[pos++] = '\\';
strcpy(buffer + pos, "*.*");
if ((h = FindFirstFileA(buffer, &fd)) == INVALID_HANDLE_VALUE)
return FALSE;
/* doc doesn't specify how the tree is enumerated...
* doing a depth first based on, but may be wrong
*/
do
{
if (!strcmp(fd.cFileName, ".") || !strcmp(fd.cFileName, "..")) continue;
strcpy(buffer + pos, fd.cFileName);
if (recurse && (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
found = do_search(file, buffer, TRUE, cb, user);
else if (SymMatchFileName(buffer, (char*)file, NULL, NULL))
{
if (!cb || cb(buffer, user)) found = TRUE;
}
} while (!found && FindNextFileA(h, &fd));
if (!found) buffer[--pos] = '\0';
FindClose(h);
return found;
}
/***********************************************************************
* SearchTreeForFile (DBGHELP.@)
*/
BOOL WINAPI SearchTreeForFile(PCSTR root, PCSTR file, PSTR buffer)
{
TRACE("(%s, %s, %p)\n",
debugstr_a(root), debugstr_a(file), buffer);
strcpy(buffer, root);
return do_search(file, buffer, TRUE, NULL, NULL);
}
/******************************************************************
* EnumDirTree (DBGHELP.@)
*
*
*/
BOOL WINAPI EnumDirTree(HANDLE hProcess, PCSTR root, PCSTR file,
LPSTR buffer, PENUMDIRTREE_CALLBACK cb, PVOID user)
{
TRACE("(%p %s %s %p %p %p)\n", hProcess, root, file, buffer, cb, user);
strcpy(buffer, root);
return do_search(file, buffer, TRUE, cb, user);
}
struct sffip
{
enum module_type kind;
/* pe: id -> DWORD:timestamp
* two -> size of image (from PE header)
* pdb: id -> PDB signature
* I think either DWORD:timestamp or GUID:guid depending on PDB version
* two -> PDB age ???
* elf: id -> DWORD:CRC 32 of ELF image (Wine only)
*/
PVOID id;
DWORD two;
DWORD three;
DWORD flags;
PFINDFILEINPATHCALLBACK cb;
void* user;
};
/* checks that buffer (as found by matching the name) matches the info
* (information is based on file type)
* returns TRUE when file is found, FALSE to continue searching
* (NB this is the opposite conventions as for SymFindFileInPathProc)
*/
static BOOL CALLBACK sffip_cb(LPCSTR buffer, void* user)
{
struct sffip* s = (struct sffip*)user;
DWORD size, checksum;
/* FIXME: should check that id/two/three match the file pointed
* by buffer
*/
switch (s->kind)
{
case DMT_PE:
{
HANDLE hFile, hMap;
void* mapping;
DWORD timestamp;
timestamp = ~(DWORD_PTR)s->id;
size = ~s->two;
hFile = CreateFileA(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
if ((hMap = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
{
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
{
IMAGE_NT_HEADERS* nth = RtlImageNtHeader(mapping);
timestamp = nth->FileHeader.TimeDateStamp;
size = nth->OptionalHeader.SizeOfImage;
UnmapViewOfFile(mapping);
}
CloseHandle(hMap);
}
CloseHandle(hFile);
if (timestamp != (DWORD_PTR)s->id || size != s->two)
{
WARN("Found %s, but wrong size or timestamp\n", buffer);
return FALSE;
}
}
break;
case DMT_ELF:
if (elf_fetch_file_info(buffer, 0, &size, &checksum))
{
if (checksum != (DWORD_PTR)s->id)
{
WARN("Found %s, but wrong checksums: %08x %08lx\n",
buffer, checksum, (DWORD_PTR)s->id);
return FALSE;
}
}
else
{
WARN("Couldn't read %s\n", buffer);
return FALSE;
}
break;
case DMT_PDB:
{
struct pdb_lookup pdb_lookup;
pdb_lookup.filename = buffer;
if (!pdb_fetch_file_info(&pdb_lookup)) return FALSE;
switch (pdb_lookup.kind)
{
case PDB_JG:
if (s->flags & SSRVOPT_GUIDPTR)
{
WARN("Found %s, but wrong PDB version\n", buffer);
return FALSE;
}
if (pdb_lookup.u.jg.timestamp != (DWORD_PTR)s->id)
{
WARN("Found %s, but wrong signature: %08x %08lx\n",
buffer, pdb_lookup.u.jg.timestamp, (DWORD_PTR)s->id);
return FALSE;
}
break;
case PDB_DS:
if (!(s->flags & SSRVOPT_GUIDPTR))
{
WARN("Found %s, but wrong PDB version\n", buffer);
return FALSE;
}
if (memcmp(&pdb_lookup.u.ds.guid, (GUID*)s->id, sizeof(GUID)))
{
WARN("Found %s, but wrong GUID: %s %s\n",
buffer, debugstr_guid(&pdb_lookup.u.ds.guid),
debugstr_guid((GUID*)s->id));
return FALSE;
}
break;
}
if (pdb_lookup.age != s->two)
{
WARN("Found %s, but wrong age: %08x %08x\n",
buffer, pdb_lookup.age, s->two);
return FALSE;
}
}
break;
default:
FIXME("What the heck??\n");
return FALSE;
}
/* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
* convention to stop/continue enumeration. sigh.
*/
return !(s->cb)((char*)buffer, s->user);
}
/******************************************************************
* SymFindFileInPath (DBGHELP.@)
*
*/
BOOL WINAPI SymFindFileInPath(HANDLE hProcess, PCSTR inSearchPath, PCSTR full_path,
PVOID id, DWORD two, DWORD three, DWORD flags,
LPSTR buffer, PFINDFILEINPATHCALLBACK cb,
PVOID user)
{
struct sffip s;
struct process* pcs = process_find_by_handle(hProcess);
char tmp[MAX_PATH];
char* ptr;
char* buf = NULL;
const char* filename;
const char* searchPath = inSearchPath;
TRACE("(%p %s %s %p %08x %08x %08x %p %p %p)\n",
hProcess, searchPath, full_path, id, two, three, flags,
buffer, cb, user);
if (!pcs) return FALSE;
if (!searchPath)
{
unsigned len = WideCharToMultiByte(CP_ACP, 0, pcs->search_path, -1, NULL, 0, NULL, NULL);
searchPath = buf = HeapAlloc(GetProcessHeap(), 0, len);
if (!searchPath) return FALSE;
WideCharToMultiByte(CP_ACP, 0, pcs->search_path, -1, buf, len, NULL, NULL);
}
s.id = id;
s.two = two;
s.three = three;
s.flags = flags;
s.cb = cb;
s.user = user;
filename = file_name(full_path);
s.kind = module_get_type_by_nameA(filename);
/* first check full path to file */
if (sffip_cb(full_path, &s))
{
strcpy(buffer, full_path);
HeapFree(GetProcessHeap(), 0, buf);
return TRUE;
}
while (searchPath)
{
ptr = strchr(searchPath, ';');
if (ptr)
{
memcpy(tmp, searchPath, ptr - searchPath);
tmp[ptr - searchPath] = 0;
searchPath = ptr + 1;
}
else
{
strcpy(tmp, searchPath);
searchPath = NULL;
}
if (do_search(filename, tmp, FALSE, sffip_cb, &s))
{
strcpy(buffer, tmp);
HeapFree(GetProcessHeap(), 0, buf);
return TRUE;
}
}
HeapFree(GetProcessHeap(), 0, buf);
return FALSE;
}
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