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win32.c: find by final path

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* win32/win32.c (open_dir_handle): find by final path name.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51689 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-08-26 08:11:33 +00:00
parent dd67521bd1
commit 8e6259e0d9
1 changed files with 28 additions and 11 deletions
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39
win32/win32.c
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@ -1822,6 +1822,21 @@ w32_cmdvector(const WCHAR *cmd, char ***vec, UINT cp, rb_encoding *enc)
// UNIX compatible directory access functions for NT
//
static DWORD
get_final_path(HANDLE f, WCHAR *buf, DWORD len, DWORD flag)
{
typedef DWORD (WINAPI *get_final_path_func)(HANDLE, WCHAR*, DWORD, DWORD);
static get_final_path_func func = (get_final_path_func)-1;
if (func == (get_final_path_func)-1) {
func = (get_final_path_func)
get_proc_address("kernel32", "GetFinalPathNameByHandleW", NULL);
}
if (!func) return 0;
return func(f, buf, len, flag);
}
//
// The idea here is to read all the directory names into a string table
// (separated by nulls) and when one of the other dir functions is called
@ -1842,6 +1857,7 @@ open_dir_handle(const WCHAR *filename, WIN32_FIND_DATAW *fd)
{
HANDLE fh;
static const WCHAR wildcard[] = L"\\*";
WCHAR fullname[MAX_PATH];
WCHAR *scanname;
WCHAR *p;
int len;
@ -1850,7 +1866,17 @@ open_dir_handle(const WCHAR *filename, WIN32_FIND_DATAW *fd)
//
// Create the search pattern
//
len = lstrlenW(filename);
fh = CreateFileW(filename, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (fh != INVALID_HANDLE_VALUE) {
len = get_final_path(fh, fullname, numberof(fullname), 0);
CloseHandle(fh);
filename = fullname;
}
else {
len = lstrlenW(filename);
}
scanname = ALLOCV_N(WCHAR, v, len + numberof(wildcard));
lstrcpyW(scanname, filename);
p = CharPrevW(scanname, scanname + len);
@ -5325,22 +5351,13 @@ winnt_stat(const WCHAR *path, struct stati64 *st)
{
HANDLE f;
typedef DWORD (WINAPI *get_final_path_func)(HANDLE, WCHAR*, DWORD, DWORD);
static get_final_path_func get_final_path = (get_final_path_func)-1;
if (get_final_path == (get_final_path_func)-1) {
get_final_path = (get_final_path_func)
get_proc_address("kernel32", "GetFinalPathNameByHandleW", NULL);
}
memset(st, 0, sizeof(*st));
f = CreateFileW(path, 0, 0, NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (f != INVALID_HANDLE_VALUE) {
WCHAR finalname[MAX_PATH];
const DWORD attr = stati64_handle(f, st);
const DWORD len = get_final_path ?
get_final_path(f, finalname, numberof(finalname), 0) : 0;
const DWORD len = get_final_path(f, finalname, numberof(finalname), 0);
CloseHandle(f);
if (attr & FILE_ATTRIBUTE_DIRECTORY) {
if (check_valid_dir(path)) return -1;