xref: /reactos/dll/win32/dbghelp/path.c (revision 0610bcb3)
1 /*
2  * File path.c - managing path in debugging environments
3  *
4  * Copyright (C) 2004,2008, Eric Pouech
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20 
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <string.h>
24 
25 #include "dbghelp_private.h"
26 #include "image_private.h"
27 #include "winnls.h"
28 #include "winternl.h"
29 #include "wine/debug.h"
30 #include "wine/heap.h"
31 
32 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
33 
is_sepA(char ch)34 static inline BOOL is_sepA(char ch) {return ch == '/' || ch == '\\';}
is_sep(WCHAR ch)35 static inline BOOL is_sep(WCHAR ch) {return ch == '/' || ch == '\\';}
36 
file_nameA(const char * str)37 const char* file_nameA(const char* str)
38 {
39     const char*       p;
40 
41     for (p = str + strlen(str) - 1; p >= str && !is_sepA(*p); p--);
42     return p + 1;
43 }
44 
file_name(const WCHAR * str)45 const WCHAR* file_name(const WCHAR* str)
46 {
47     const WCHAR*      p;
48 
49     for (p = str + lstrlenW(str) - 1; p >= str && !is_sep(*p); p--);
50     return p + 1;
51 }
52 
file_pathW(const WCHAR * src,WCHAR * dst)53 static inline void file_pathW(const WCHAR *src, WCHAR *dst)
54 {
55     int len;
56 
57     for (len = lstrlenW(src) - 1; (len > 0) && (!is_sep(src[len])); len--);
58     memcpy( dst, src, len * sizeof(WCHAR) );
59     dst[len] = 0;
60 }
61 
62 /******************************************************************
63  *		FindDebugInfoFile (DBGHELP.@)
64  *
65  */
FindDebugInfoFile(PCSTR FileName,PCSTR SymbolPath,PSTR DebugFilePath)66 HANDLE WINAPI FindDebugInfoFile(PCSTR FileName, PCSTR SymbolPath, PSTR DebugFilePath)
67 {
68     HANDLE      h;
69 
70     h = CreateFileA(FileName, GENERIC_READ, FILE_SHARE_READ, NULL,
71                     OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
72     if (h == INVALID_HANDLE_VALUE)
73     {
74         if (!SearchPathA(SymbolPath, file_nameA(FileName), NULL, MAX_PATH, DebugFilePath, NULL))
75             return NULL;
76         h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
77                         OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
78     }
79     return (h == INVALID_HANDLE_VALUE) ? NULL : h;
80 }
81 
82 /******************************************************************
83  *		FindDebugInfoFileEx (DBGHELP.@)
84  *
85  */
FindDebugInfoFileEx(PCSTR FileName,PCSTR SymbolPath,PSTR DebugFilePath,PFIND_DEBUG_FILE_CALLBACK Callback,PVOID CallerData)86 HANDLE WINAPI FindDebugInfoFileEx(PCSTR FileName, PCSTR SymbolPath,
87                                   PSTR DebugFilePath,
88                                   PFIND_DEBUG_FILE_CALLBACK Callback,
89                                   PVOID CallerData)
90 {
91     FIXME("(%s %s %s %p %p): stub\n", debugstr_a(FileName), debugstr_a(SymbolPath),
92             debugstr_a(DebugFilePath), Callback, CallerData);
93     return NULL;
94 }
95 
96 /******************************************************************
97  *		FindExecutableImageExW (DBGHELP.@)
98  *
99  */
FindExecutableImageExW(PCWSTR FileName,PCWSTR SymbolPath,PWSTR ImageFilePath,PFIND_EXE_FILE_CALLBACKW Callback,PVOID user)100 HANDLE WINAPI FindExecutableImageExW(PCWSTR FileName, PCWSTR SymbolPath, PWSTR ImageFilePath,
101                                      PFIND_EXE_FILE_CALLBACKW Callback, PVOID user)
102 {
103     HANDLE h;
104 
105     if (Callback) FIXME("Unsupported callback yet\n");
106     if (!SearchPathW(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
107         return NULL;
108     h = CreateFileW(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
109                     OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
110     return (h == INVALID_HANDLE_VALUE) ? NULL : h;
111 }
112 
113 /******************************************************************
114  *		FindExecutableImageEx (DBGHELP.@)
115  *
116  */
FindExecutableImageEx(PCSTR FileName,PCSTR SymbolPath,PSTR ImageFilePath,PFIND_EXE_FILE_CALLBACK Callback,PVOID user)117 HANDLE WINAPI FindExecutableImageEx(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath,
118                                     PFIND_EXE_FILE_CALLBACK Callback, PVOID user)
119 {
120     HANDLE h;
121 
122     if (Callback) FIXME("Unsupported callback yet\n");
123     if (!SearchPathA(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
124         return NULL;
125     h = CreateFileA(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
126                     OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
127     return (h == INVALID_HANDLE_VALUE) ? NULL : h;
128 }
129 
130 /******************************************************************
131  *		FindExecutableImage (DBGHELP.@)
132  *
133  */
FindExecutableImage(PCSTR FileName,PCSTR SymbolPath,PSTR ImageFilePath)134 HANDLE WINAPI FindExecutableImage(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath)
135 {
136     return FindExecutableImageEx(FileName, SymbolPath, ImageFilePath, NULL, NULL);
137 }
138 
139 /***********************************************************************
140  *           MakeSureDirectoryPathExists (DBGHELP.@)
141  */
MakeSureDirectoryPathExists(PCSTR DirPath)142 BOOL WINAPI MakeSureDirectoryPathExists(PCSTR DirPath)
143 {
144     char path[MAX_PATH];
145     const char *p = DirPath;
146     int  n;
147 
148     if (p[0] && p[1] == ':') p += 2;
149     while (*p == '\\') p++; /* skip drive root */
150     while ((p = strchr(p, '\\')) != NULL)
151     {
152        n = p - DirPath + 1;
153        memcpy(path, DirPath, n);
154        path[n] = '\0';
155        if( !CreateDirectoryA(path, NULL)            &&
156            (GetLastError() != ERROR_ALREADY_EXISTS))
157            return FALSE;
158        p++;
159     }
160     if (GetLastError() == ERROR_ALREADY_EXISTS)
161        SetLastError(ERROR_SUCCESS);
162 
163     return TRUE;
164 }
165 
166 /******************************************************************
167  *		SymMatchFileNameW (DBGHELP.@)
168  *
169  */
SymMatchFileNameW(PCWSTR file,PCWSTR match,PWSTR * filestop,PWSTR * matchstop)170 BOOL WINAPI SymMatchFileNameW(PCWSTR file, PCWSTR match,
171                               PWSTR* filestop, PWSTR* matchstop)
172 {
173     PCWSTR fptr;
174     PCWSTR mptr;
175 
176     TRACE("(%s %s %p %p)\n",
177           debugstr_w(file), debugstr_w(match), filestop, matchstop);
178 
179     fptr = file + lstrlenW(file) - 1;
180     mptr = match + lstrlenW(match) - 1;
181 
182     while (fptr >= file && mptr >= match)
183     {
184         if (towupper(*fptr) != towupper(*mptr) && !(is_sep(*fptr) && is_sep(*mptr)))
185             break;
186         fptr--; mptr--;
187     }
188     if (filestop) *filestop = (PWSTR)fptr;
189     if (matchstop) *matchstop = (PWSTR)mptr;
190 
191     return mptr == match - 1;
192 }
193 
194 /******************************************************************
195  *		SymMatchFileName (DBGHELP.@)
196  *
197  */
SymMatchFileName(PCSTR file,PCSTR match,PSTR * filestop,PSTR * matchstop)198 BOOL WINAPI SymMatchFileName(PCSTR file, PCSTR match,
199                              PSTR* filestop, PSTR* matchstop)
200 {
201     PCSTR fptr;
202     PCSTR mptr;
203 
204     TRACE("(%s %s %p %p)\n", debugstr_a(file), debugstr_a(match), filestop, matchstop);
205 
206     fptr = file + strlen(file) - 1;
207     mptr = match + strlen(match) - 1;
208 
209     while (fptr >= file && mptr >= match)
210     {
211         if (toupper(*fptr) != toupper(*mptr) && !(is_sepA(*fptr) && is_sepA(*mptr)))
212             break;
213         fptr--; mptr--;
214     }
215     if (filestop) *filestop = (PSTR)fptr;
216     if (matchstop) *matchstop = (PSTR)mptr;
217 
218     return mptr == match - 1;
219 }
220 
do_searchW(PCWSTR file,PWSTR buffer,BOOL recurse,PENUMDIRTREE_CALLBACKW cb,PVOID user)221 static BOOL do_searchW(PCWSTR file, PWSTR buffer, BOOL recurse,
222                        PENUMDIRTREE_CALLBACKW cb, PVOID user)
223 {
224     HANDLE              h;
225     WIN32_FIND_DATAW    fd;
226     unsigned            pos;
227     BOOL                found = FALSE;
228     static const WCHAR  S_AllW[] = {'*','.','*','\0'};
229     static const WCHAR  S_DotW[] = {'.','\0'};
230     static const WCHAR  S_DotDotW[] = {'.','.','\0'};
231 
232     pos = lstrlenW(buffer);
233     if (pos == 0) return FALSE;
234     if (buffer[pos - 1] != '\\') buffer[pos++] = '\\';
235     lstrcpyW(buffer + pos, S_AllW);
236     if ((h = FindFirstFileW(buffer, &fd)) == INVALID_HANDLE_VALUE)
237         return FALSE;
238     /* doc doesn't specify how the tree is enumerated...
239      * doing a depth first based on, but may be wrong
240      */
241     do
242     {
243         if (!wcscmp(fd.cFileName, S_DotW) || !wcscmp(fd.cFileName, S_DotDotW)) continue;
244 
245         lstrcpyW(buffer + pos, fd.cFileName);
246         if (recurse && (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
247             found = do_searchW(file, buffer, TRUE, cb, user);
248         else if (SymMatchFileNameW(buffer, file, NULL, NULL))
249         {
250             if (!cb || cb(buffer, user)) found = TRUE;
251         }
252     } while (!found && FindNextFileW(h, &fd));
253     if (!found) buffer[--pos] = '\0';
254     FindClose(h);
255 
256     return found;
257 }
258 
259 /***********************************************************************
260  *           SearchTreeForFileW (DBGHELP.@)
261  */
SearchTreeForFileW(PCWSTR root,PCWSTR file,PWSTR buffer)262 BOOL WINAPI SearchTreeForFileW(PCWSTR root, PCWSTR file, PWSTR buffer)
263 {
264     TRACE("(%s, %s, %p)\n",
265           debugstr_w(root), debugstr_w(file), buffer);
266     lstrcpyW(buffer, root);
267     return do_searchW(file, buffer, TRUE, NULL, NULL);
268 }
269 
270 /***********************************************************************
271  *           SearchTreeForFile (DBGHELP.@)
272  */
SearchTreeForFile(PCSTR root,PCSTR file,PSTR buffer)273 BOOL WINAPI SearchTreeForFile(PCSTR root, PCSTR file, PSTR buffer)
274 {
275     WCHAR       rootW[MAX_PATH];
276     WCHAR       fileW[MAX_PATH];
277     WCHAR       bufferW[MAX_PATH];
278     BOOL        ret;
279 
280     MultiByteToWideChar(CP_ACP, 0, root, -1, rootW, MAX_PATH);
281     MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, MAX_PATH);
282     ret = SearchTreeForFileW(rootW, fileW, bufferW);
283     if (ret)
284         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
285     return ret;
286 }
287 
288 /******************************************************************
289  *		EnumDirTreeW (DBGHELP.@)
290  *
291  *
292  */
EnumDirTreeW(HANDLE hProcess,PCWSTR root,PCWSTR file,PWSTR buffer,PENUMDIRTREE_CALLBACKW cb,PVOID user)293 BOOL WINAPI EnumDirTreeW(HANDLE hProcess, PCWSTR root, PCWSTR file,
294                         PWSTR buffer, PENUMDIRTREE_CALLBACKW cb, PVOID user)
295 {
296     TRACE("(%p %s %s %p %p %p)\n",
297           hProcess, debugstr_w(root), debugstr_w(file), buffer, cb, user);
298 
299     lstrcpyW(buffer, root);
300     return do_searchW(file, buffer, TRUE, cb, user);
301 }
302 
303 /******************************************************************
304  *		EnumDirTree (DBGHELP.@)
305  *
306  *
307  */
308 struct enum_dir_treeWA
309 {
310     PENUMDIRTREE_CALLBACK       cb;
311     void*                       user;
312     char                        name[MAX_PATH];
313 };
314 
enum_dir_treeWA(PCWSTR name,PVOID user)315 static BOOL CALLBACK enum_dir_treeWA(PCWSTR name, PVOID user)
316 {
317     struct enum_dir_treeWA*     edt = user;
318 
319     WideCharToMultiByte(CP_ACP, 0, name, -1, edt->name, MAX_PATH, NULL, NULL);
320     return edt->cb(edt->name, edt->user);
321 }
322 
EnumDirTree(HANDLE hProcess,PCSTR root,PCSTR file,PSTR buffer,PENUMDIRTREE_CALLBACK cb,PVOID user)323 BOOL WINAPI EnumDirTree(HANDLE hProcess, PCSTR root, PCSTR file,
324                         PSTR buffer, PENUMDIRTREE_CALLBACK cb, PVOID user)
325 {
326     WCHAR                       rootW[MAX_PATH];
327     WCHAR                       fileW[MAX_PATH];
328     WCHAR                       bufferW[MAX_PATH];
329     struct enum_dir_treeWA      edt;
330     BOOL                        ret;
331 
332     edt.cb = cb;
333     edt.user = user;
334     MultiByteToWideChar(CP_ACP, 0, root, -1, rootW, MAX_PATH);
335     MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, MAX_PATH);
336     if ((ret = EnumDirTreeW(hProcess, rootW, fileW, bufferW, enum_dir_treeWA, &edt)))
337         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
338     return ret;
339 }
340 
341 struct sffip
342 {
343     PFINDFILEINPATHCALLBACKW    cb;
344     void*                       user;
345 };
346 
347 /* checks that buffer (as found by matching the name) matches the info
348  * (information is based on file type)
349  * returns TRUE when file is found, FALSE to continue searching
350  * (NB this is the opposite convention of SymFindFileInPathProc)
351  */
sffip_cb(PCWSTR buffer,PVOID user)352 static BOOL CALLBACK sffip_cb(PCWSTR buffer, PVOID user)
353 {
354     struct sffip*       s = user;
355 
356     if (!s->cb) return TRUE;
357     /* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
358      * convention to stop/continue enumeration. sigh.
359      */
360     return !(s->cb)(buffer, s->user);
361 }
362 
363 /******************************************************************
364  *		SymFindFileInPathW (DBGHELP.@)
365  *
366  */
SymFindFileInPathW(HANDLE hProcess,PCWSTR searchPath,PCWSTR full_path,PVOID id,DWORD two,DWORD three,DWORD flags,PWSTR buffer,PFINDFILEINPATHCALLBACKW cb,PVOID user)367 BOOL WINAPI SymFindFileInPathW(HANDLE hProcess, PCWSTR searchPath, PCWSTR full_path,
368                                PVOID id, DWORD two, DWORD three, DWORD flags,
369                                PWSTR buffer, PFINDFILEINPATHCALLBACKW cb,
370                                PVOID user)
371 {
372     struct sffip        s;
373     struct process*     pcs = process_find_by_handle(hProcess);
374     WCHAR               tmp[MAX_PATH];
375     WCHAR*              ptr;
376     const WCHAR*        filename;
377 
378     TRACE("(hProcess = %p, searchPath = %s, full_path = %s, id = %p, two = 0x%08x, three = 0x%08x, flags = 0x%08x, buffer = %p, cb = %p, user = %p)\n",
379           hProcess, debugstr_w(searchPath), debugstr_w(full_path),
380           id, two, three, flags, buffer, cb, user);
381 
382     if (!pcs) return FALSE;
383     if (!searchPath) searchPath = pcs->search_path;
384 
385     s.cb = cb;
386     s.user = user;
387 
388     filename = file_name(full_path);
389 
390     /* first check full path to file */
391     if (sffip_cb(full_path, &s))
392     {
393         lstrcpyW(buffer, full_path);
394         return TRUE;
395     }
396 
397     while (searchPath)
398     {
399         ptr = wcschr(searchPath, ';');
400         if (ptr)
401         {
402             memcpy(tmp, searchPath, (ptr - searchPath) * sizeof(WCHAR));
403             tmp[ptr - searchPath] = 0;
404             searchPath = ptr + 1;
405         }
406         else
407         {
408             lstrcpyW(tmp, searchPath);
409             searchPath = NULL;
410         }
411         if (do_searchW(filename, tmp, FALSE, sffip_cb, &s))
412         {
413             lstrcpyW(buffer, tmp);
414             return TRUE;
415         }
416     }
417     return FALSE;
418 }
419 
420 /******************************************************************
421  *		SymFindFileInPath (DBGHELP.@)
422  *
423  */
SymFindFileInPath(HANDLE hProcess,PCSTR searchPath,PCSTR full_path,PVOID id,DWORD two,DWORD three,DWORD flags,PSTR buffer,PFINDFILEINPATHCALLBACK cb,PVOID user)424 BOOL WINAPI SymFindFileInPath(HANDLE hProcess, PCSTR searchPath, PCSTR full_path,
425                               PVOID id, DWORD two, DWORD three, DWORD flags,
426                               PSTR buffer, PFINDFILEINPATHCALLBACK cb,
427                               PVOID user)
428 {
429     WCHAR                       searchPathW[MAX_PATH];
430     WCHAR                       full_pathW[MAX_PATH];
431     WCHAR                       bufferW[MAX_PATH];
432     struct enum_dir_treeWA      edt;
433     BOOL                        ret;
434 
435     /* a PFINDFILEINPATHCALLBACK and a PENUMDIRTREE_CALLBACK have actually the
436      * same signature & semantics, hence we can reuse the EnumDirTree W->A
437      * conversion helper
438      */
439     edt.cb = cb;
440     edt.user = user;
441     if (searchPath)
442         MultiByteToWideChar(CP_ACP, 0, searchPath, -1, searchPathW, MAX_PATH);
443     MultiByteToWideChar(CP_ACP, 0, full_path, -1, full_pathW, MAX_PATH);
444     if ((ret =  SymFindFileInPathW(hProcess, searchPath ? searchPathW : NULL, full_pathW,
445                                    id, two, three, flags,
446                                    bufferW, enum_dir_treeWA, &edt)))
447         WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
448     return ret;
449 }
450 
451 struct module_find
452 {
453     enum module_type            kind;
454     /* pe:  dw1         DWORD:timestamp
455      *      dw2         size of image (from PE header)
456      * pdb: guid        PDB guid (if DS PDB file)
457      *      or dw1      PDB timestamp (if JG PDB file)
458      *      dw2         PDB age
459      * elf: dw1         DWORD:CRC 32 of ELF image (Wine only)
460      */
461     const GUID*                 guid;
462     DWORD                       dw1;
463     DWORD                       dw2;
464     WCHAR                       filename[MAX_PATH];
465     unsigned                    matched;
466 };
467 
468 /* checks that buffer (as found by matching the name) matches the info
469  * (information is based on file type)
470  * returns TRUE when file is found, FALSE to continue searching
471  * (NB this is the opposite convention of SymFindFileInPathProc)
472  */
module_find_cb(PCWSTR buffer,PVOID user)473 static BOOL CALLBACK module_find_cb(PCWSTR buffer, PVOID user)
474 {
475     struct module_find* mf = user;
476     DWORD               size, timestamp;
477     unsigned            matched = 0;
478 
479     /* the matching weights:
480      * +1 if a file with same name is found and is a decent file of expected type
481      * +1 if first parameter and second parameter match
482      */
483 
484     /* FIXME: should check that id/two match the file pointed
485      * by buffer
486      */
487     switch (mf->kind)
488     {
489     case DMT_PE:
490         {
491             HANDLE  hFile, hMap;
492             void*   mapping;
493 
494             timestamp = ~mf->dw1;
495             size = ~mf->dw2;
496             hFile = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
497                                 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
498             if (hFile == INVALID_HANDLE_VALUE) return FALSE;
499             if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
500             {
501                 if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
502                 {
503                     IMAGE_NT_HEADERS*   nth = RtlImageNtHeader(mapping);
504                     if (!nth)
505                     {
506                         UnmapViewOfFile(mapping);
507                         CloseHandle(hMap);
508                         CloseHandle(hFile);
509                         return FALSE;
510                     }
511                     matched++;
512                     timestamp = nth->FileHeader.TimeDateStamp;
513                     size = nth->OptionalHeader.SizeOfImage;
514                     UnmapViewOfFile(mapping);
515                 }
516                 CloseHandle(hMap);
517             }
518             CloseHandle(hFile);
519             if (timestamp != mf->dw1)
520                 WARN("Found %s, but wrong timestamp\n", debugstr_w(buffer));
521             if (size != mf->dw2)
522                 WARN("Found %s, but wrong size\n", debugstr_w(buffer));
523             if (timestamp == mf->dw1 && size == mf->dw2) matched++;
524         }
525         break;
526     case DMT_PDB:
527         {
528             struct pdb_lookup           pdb_lookup;
529             char                        fn[MAX_PATH];
530 
531             WideCharToMultiByte(CP_ACP, 0, buffer, -1, fn, MAX_PATH, NULL, NULL);
532             pdb_lookup.filename = fn;
533 
534             if (mf->guid)
535             {
536                 pdb_lookup.kind = PDB_DS;
537                 pdb_lookup.timestamp = 0;
538                 pdb_lookup.guid = *mf->guid;
539             }
540             else
541             {
542                 pdb_lookup.kind = PDB_JG;
543                 pdb_lookup.timestamp = mf->dw1;
544                 /* pdb_loopkup.guid = */
545             }
546             pdb_lookup.age = mf->dw2;
547 
548             if (!pdb_fetch_file_info(&pdb_lookup, &matched)) return FALSE;
549         }
550         break;
551     case DMT_DBG:
552         {
553             HANDLE  hFile, hMap;
554             void*   mapping;
555 
556             timestamp = ~mf->dw1;
557             hFile = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
558                                 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
559             if (hFile == INVALID_HANDLE_VALUE) return FALSE;
560             if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
561             {
562                 if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
563                 {
564                     const IMAGE_SEPARATE_DEBUG_HEADER*  hdr;
565                     hdr = mapping;
566 
567                     if (hdr->Signature == IMAGE_SEPARATE_DEBUG_SIGNATURE)
568                     {
569                         matched++;
570                         timestamp = hdr->TimeDateStamp;
571                     }
572                     UnmapViewOfFile(mapping);
573                 }
574                 CloseHandle(hMap);
575             }
576             CloseHandle(hFile);
577             if (timestamp == mf->dw1) matched++;
578             else WARN("Found %s, but wrong timestamp\n", debugstr_w(buffer));
579         }
580         break;
581     default:
582         FIXME("What the heck??\n");
583         return FALSE;
584     }
585     if (matched > mf->matched)
586     {
587         lstrcpyW(mf->filename, buffer);
588         mf->matched = matched;
589     }
590     /* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
591      * convention to stop/continue enumeration. sigh.
592      */
593     return mf->matched == 2;
594 }
595 
path_find_symbol_file(const struct process * pcs,const struct module * module,PCSTR full_path,enum module_type type,const GUID * guid,DWORD dw1,DWORD dw2,WCHAR * buffer,BOOL * is_unmatched)596 BOOL path_find_symbol_file(const struct process* pcs, const struct module* module,
597                            PCSTR full_path, enum module_type type, const GUID* guid, DWORD dw1, DWORD dw2,
598                            WCHAR *buffer, BOOL* is_unmatched)
599 {
600     struct module_find  mf;
601     WCHAR               full_pathW[MAX_PATH];
602     WCHAR*              ptr;
603     const WCHAR*        filename;
604     WCHAR*              searchPath = pcs->search_path;
605 
606     TRACE("(pcs = %p, full_path = %s, guid = %s, dw1 = 0x%08x, dw2 = 0x%08x, buffer = %p)\n",
607           pcs, debugstr_a(full_path), debugstr_guid(guid), dw1, dw2, buffer);
608 
609     mf.guid = guid;
610     mf.dw1 = dw1;
611     mf.dw2 = dw2;
612     mf.matched = 0;
613 
614     MultiByteToWideChar(CP_ACP, 0, full_path, -1, full_pathW, MAX_PATH);
615     filename = file_name(full_pathW);
616     mf.kind = type;
617     *is_unmatched = FALSE;
618 
619     /* first check full path to file */
620     if (module_find_cb(full_pathW, &mf))
621     {
622         lstrcpyW( buffer, full_pathW );
623         return TRUE;
624     }
625 
626     /* FIXME: Use Environment-Variables (see MS docs)
627                  _NT_SYMBOL_PATH and _NT_ALT_SYMBOL_PATH
628        FIXME: Implement "Standard Path Elements" (Path) ... (see MS docs)
629               do a search for (every?) path-element like this ...
630               <path>
631               <path>\dll
632               <path>\symbols\dll
633               (dll may be exe, or sys depending on the file extension)   */
634 
635     /* 2. check module-path */
636     file_pathW(module->module.LoadedImageName, buffer);
637     if (do_searchW(filename, buffer, FALSE, module_find_cb, &mf)) return TRUE;
638     if (module->real_path)
639     {
640         file_pathW(module->real_path, buffer);
641         if (do_searchW(filename, buffer, FALSE, module_find_cb, &mf)) return TRUE;
642     }
643 
644     while (searchPath)
645     {
646         ptr = wcschr(searchPath, ';');
647         if (ptr)
648         {
649             memcpy(buffer, searchPath, (ptr - searchPath) * sizeof(WCHAR));
650             buffer[ptr - searchPath] = '\0';
651             searchPath = ptr + 1;
652         }
653         else
654         {
655             lstrcpyW(buffer, searchPath);
656             searchPath = NULL;
657         }
658         /* return first fully matched file */
659         if (do_searchW(filename, buffer, FALSE, module_find_cb, &mf)) return TRUE;
660     }
661     /* if no fully matching file is found, return the best matching file if any */
662     if ((dbghelp_options & SYMOPT_LOAD_ANYTHING) && mf.matched)
663     {
664         lstrcpyW( buffer, mf.filename );
665         *is_unmatched = TRUE;
666         return TRUE;
667     }
668     return FALSE;
669 }
670 
get_dos_file_name(const WCHAR * filename)671 WCHAR *get_dos_file_name(const WCHAR *filename)
672 {
673     WCHAR *dos_path;
674     size_t len;
675 
676 #ifndef __REACTOS__
677     if (*filename == '/')
678     {
679         char *unix_path;
680         len = WideCharToMultiByte(CP_UNIXCP, 0, filename, -1, NULL, 0, NULL, NULL);
681         unix_path = heap_alloc(len * sizeof(WCHAR));
682         WideCharToMultiByte(CP_UNIXCP, 0, filename, -1, unix_path, len, NULL, NULL);
683         dos_path = wine_get_dos_file_name(unix_path);
684         heap_free(unix_path);
685     }
686     else
687 #endif
688     {
689         len = lstrlenW(filename);
690         dos_path = heap_alloc((len + 1) * sizeof(WCHAR));
691         memcpy(dos_path, filename, (len + 1) * sizeof(WCHAR));
692     }
693     return dos_path;
694 }
695 
696 #ifndef __REACTOS__
search_dll_path(const struct process * process,const WCHAR * name,BOOL (* match)(void *,HANDLE,const WCHAR *),void * param)697 BOOL search_dll_path(const struct process *process, const WCHAR *name, BOOL (*match)(void*, HANDLE, const WCHAR*), void *param)
698 {
699     const WCHAR *env;
700     size_t len, i;
701     HANDLE file;
702     WCHAR *buf;
703     BOOL ret;
704 
705     name = file_name(name);
706 
707     if ((env = process_getenv(process, L"WINEBUILDDIR")))
708     {
709         WCHAR *p, *end;
710         const WCHAR dllsW[] = { '\\','d','l','l','s','\\' };
711         const WCHAR programsW[] = { '\\','p','r','o','g','r','a','m','s','\\' };
712         const WCHAR dot_dllW[] = {'.','d','l','l',0};
713         const WCHAR dot_exeW[] = {'.','e','x','e',0};
714         const WCHAR dot_soW[] = {'.','s','o',0};
715 
716 
717         len = lstrlenW(env);
718         if (!(buf = heap_alloc((len + 8 + 3 * lstrlenW(name)) * sizeof(WCHAR)))) return FALSE;
719         wcscpy(buf, env);
720         end = buf + len;
721 
722         memcpy(end, dllsW, sizeof(dllsW));
723         lstrcpyW(end + ARRAY_SIZE(dllsW), name);
724         if ((p = wcsrchr(end, '.')) && !lstrcmpW(p, dot_soW)) *p = 0;
725         if ((p = wcsrchr(end, '.')) && !lstrcmpW(p, dot_dllW)) *p = 0;
726         p = end + lstrlenW(end);
727         *p++ = '\\';
728         lstrcpyW(p, name);
729         file = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
730         if (file != INVALID_HANDLE_VALUE)
731         {
732             ret = match(param, file, buf);
733             CloseHandle(file);
734             if (ret) goto found;
735         }
736 
737         memcpy(end, programsW, sizeof(programsW));
738         end += ARRAY_SIZE(programsW);
739         lstrcpyW(end, name);
740         if ((p = wcsrchr(end, '.')) && !lstrcmpW(p, dot_soW)) *p = 0;
741         if ((p = wcsrchr(end, '.')) && !lstrcmpW(p, dot_exeW)) *p = 0;
742         p = end + lstrlenW(end);
743         *p++ = '\\';
744         lstrcpyW(p, name);
745         file = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
746         if (file != INVALID_HANDLE_VALUE)
747         {
748             ret = match(param, file, buf);
749             CloseHandle(file);
750             if (ret) goto found;
751         }
752 
753         heap_free(buf);
754     }
755 
756     for (i = 0;; i++)
757     {
758         WCHAR env_name[64];
759         swprintf(env_name, ARRAY_SIZE(env_name), L"WINEDLLDIR%u", i);
760         if (!(env = process_getenv(process, env_name))) return FALSE;
761         len = wcslen(env) + wcslen(name) + 2;
762         if (!(buf = heap_alloc(len * sizeof(WCHAR)))) return FALSE;
763         swprintf(buf, len, L"%s\\%s", env, name);
764         file = CreateFileW(buf, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
765         if (file != INVALID_HANDLE_VALUE)
766         {
767             ret = match(param, file, buf);
768             CloseHandle(file);
769             if (ret) goto found;
770         }
771         heap_free(buf);
772     }
773 
774     return FALSE;
775 
776 found:
777     TRACE("found %s\n", debugstr_w(buf));
778     heap_free(buf);
779     return TRUE;
780 }
781 
search_unix_path(const WCHAR * name,const WCHAR * path,BOOL (* match)(void *,HANDLE,const WCHAR *),void * param)782 BOOL search_unix_path(const WCHAR *name, const WCHAR *path, BOOL (*match)(void*, HANDLE, const WCHAR*), void *param)
783 {
784     const WCHAR *iter, *next;
785     size_t size, len;
786     WCHAR *dos_path;
787     char *buf;
788     BOOL ret = FALSE;
789 
790     if (!path) return FALSE;
791     name = file_name(name);
792 
793     size = WideCharToMultiByte(CP_UNIXCP, 0, name, -1, NULL, 0, NULL, NULL)
794         + WideCharToMultiByte(CP_UNIXCP, 0, path, -1, NULL, 0, NULL, NULL);
795     if (!(buf = heap_alloc(size))) return FALSE;
796 
797     for (iter = path;; iter = next + 1)
798     {
799         if (!(next = wcschr(iter, ':'))) next = iter + lstrlenW(iter);
800         if (*iter == '/')
801         {
802             len = WideCharToMultiByte(CP_UNIXCP, 0, iter, next - iter, buf, size, NULL, NULL);
803             if (buf[len - 1] != '/') buf[len++] = '/';
804             WideCharToMultiByte(CP_UNIXCP, 0, name, -1, buf + len, size - len, NULL, NULL);
805             if ((dos_path = wine_get_dos_file_name(buf)))
806             {
807                 HANDLE file = CreateFileW(dos_path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
808                 if (file != INVALID_HANDLE_VALUE)
809                 {
810                     ret = match(param, file, dos_path);
811                     CloseHandle(file);
812                     if (ret) TRACE("found %s\n", debugstr_w(dos_path));
813                 }
814                 heap_free(dos_path);
815                 if (ret) break;
816             }
817         }
818         if (*next != ':') break;
819     }
820 
821     heap_free(buf);
822     return ret;
823 }
824 #endif
825