diff options
Diffstat (limited to 'winsup/cygwin/fhandler_disk_file.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_disk_file.cc | 872 |
1 files changed, 0 insertions, 872 deletions
diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc deleted file mode 100644 index 9da537453..000000000 --- a/winsup/cygwin/fhandler_disk_file.cc +++ /dev/null @@ -1,872 +0,0 @@ -/* fhandler_disk_file.cc - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc. - -This file is part of Cygwin. - -This software is a copyrighted work licensed under the terms of the -Cygwin license. Please consult the file "CYGWIN_LICENSE" for -details. */ - -#include "winsup.h" -#include <unistd.h> -#include <stdlib.h> -#include <sys/cygwin.h> -#include <signal.h> -#include "cygerrno.h" -#include "perprocess.h" -#include "security.h" -#include "cygwin/version.h" -#include "path.h" -#include "fhandler.h" -#include "dtable.h" -#include "cygheap.h" -#include "shared_info.h" -#include "pinfo.h" -#include <ntdef.h> -#include "ntdll.h" -#include <assert.h> -#include <ctype.h> - -#define _COMPILING_NEWLIB -#include <dirent.h> - -unsigned __stdcall -path_conv::ndisk_links (DWORD nNumberOfLinks) -{ - if (!isdir () || isremote ()) - return nNumberOfLinks; - - int len = strlen (*this); - char fn[len + 3]; - strcpy (fn, *this); - - const char *s; - unsigned count; - if (nNumberOfLinks <= 1) - { - s = "/*"; - count = 0; - } - else - { - s = "/.."; - count = nNumberOfLinks; - } - - if (len == 0 || isdirsep (fn[len - 1])) - strcpy (fn + len, s + 1); - else - strcpy (fn + len, s); - - WIN32_FIND_DATA buf; - HANDLE h = FindFirstFile (fn, &buf); - - int saw_dot = 2; - if (h != INVALID_HANDLE_VALUE) - { - if (nNumberOfLinks > 1) - saw_dot--; - else - do - { - if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) - count++; - if (buf.cFileName[0] == '.' - && (buf.cFileName[1] == '\0' - || (buf.cFileName[1] == '.' && buf.cFileName[2] == '\0'))) - saw_dot--; - } - while (FindNextFileA (h, &buf)); - FindClose (h); - } - - if (nNumberOfLinks > 1) - { - fn[len + 2] = '\0'; - h = FindFirstFile (fn, &buf); - if (h) - saw_dot--; - FindClose (h); - } - - return count + saw_dot; -} - -int __stdcall -fhandler_base::fstat_by_handle (struct __stat64 *buf) -{ - BY_HANDLE_FILE_INFORMATION local; - BOOL res = GetFileInformationByHandle (get_handle (), &local); - debug_printf ("%d = GetFileInformationByHandle (%s, %d)", - res, get_win32_name (), get_handle ()); - /* GetFileInformationByHandle will fail if it's given stdio handle or pipe*/ - if (!res) - { - memset (&local, 0, sizeof (local)); - local.nFileSizeLow = GetFileSize (get_handle (), &local.nFileSizeHigh); - } - - return fstat_helper (buf, - local.ftCreationTime, - local.ftLastAccessTime, - local.ftLastWriteTime, - local.nFileSizeHigh, - local.nFileSizeLow, - local.nFileIndexHigh, - local.nFileIndexLow, - local.nNumberOfLinks); -} - -int __stdcall -fhandler_base::fstat_by_name (struct __stat64 *buf) -{ - int res; - HANDLE handle; - WIN32_FIND_DATA local; - - if (!pc.exists ()) - { - debug_printf ("already determined that pc does not exist"); - set_errno (ENOENT); - res = -1; - } - else if ((handle = FindFirstFile (pc, &local)) != INVALID_HANDLE_VALUE) - { - FindClose (handle); - res = fstat_helper (buf, - local.ftCreationTime, - local.ftLastAccessTime, - local.ftLastWriteTime, - local.nFileSizeHigh, - local.nFileSizeLow); - } - else if (pc.isdir ()) - { - FILETIME ft = {}; - res = fstat_helper (buf, ft, ft, ft, 0, 0); - } - else - { - debug_printf ("FindFirstFile failed for '%s', %E", (char *) pc); - __seterrno (); - res = -1; - } - return res; -} - -int __stdcall -fhandler_base::fstat_fs (struct __stat64 *buf) -{ - int res = -1; - int oret; - int open_flags = O_RDONLY | O_BINARY; - - if (get_io_handle ()) - { - if (get_nohandle ()) - return fstat_by_name (buf); - else - return fstat_by_handle (buf); - } - /* If we don't care if the file is executable or we already know if it is, - then just do a "query open" as it is apparently much faster. */ - if (pc.exec_state () != dont_know_if_executable) - { - set_query_open (query_read_control); - if (strncasematch (pc.volname (), "FAT", 3) - && !strpbrk (get_win32_name (), "?*|<>")) - return fstat_by_name (buf); - } - if (!(oret = open_fs (open_flags, 0)) && get_errno () == EACCES) - { - /* If we couldn't open the file, try a query open with no permissions. - This allows us to determine *some* things about the file, at least. */ - pc.set_exec (0); - set_query_open (query_null_access); - oret = open_fs (open_flags, 0); - } - - if (oret) - { - /* We now have a valid handle, regardless of the "nohandle" state. - Since fhandler_base::open only calls CloseHandle if !get_nohandle, - we have to set it to false before calling close_fs and restore - the state afterwards. */ - res = fstat_by_handle (buf); - bool nohandle = get_nohandle (); - set_nohandle (false); - close_fs (); - set_nohandle (nohandle); - set_io_handle (NULL); - } - else - res = fstat_by_name (buf); - - return res; -} - -int __stdcall -fhandler_base::fstat_helper (struct __stat64 *buf, - FILETIME ftCreationTime, - FILETIME ftLastAccessTime, - FILETIME ftLastWriteTime, - DWORD nFileSizeHigh, - DWORD nFileSizeLow, - DWORD nFileIndexHigh, - DWORD nFileIndexLow, - DWORD nNumberOfLinks) -{ - IO_STATUS_BLOCK st; - FILE_COMPRESSION_INFORMATION fci; - - /* This is for FAT filesystems, which don't support atime/ctime */ - if (ftLastAccessTime.dwLowDateTime == 0 - && ftLastAccessTime.dwHighDateTime == 0) - ftLastAccessTime = ftLastWriteTime; - if (ftCreationTime.dwLowDateTime == 0 - && ftCreationTime.dwHighDateTime == 0) - ftCreationTime = ftLastWriteTime; - - to_timestruc_t (&ftLastAccessTime, &buf->st_atim); - to_timestruc_t (&ftLastWriteTime, &buf->st_mtim); - to_timestruc_t (&ftCreationTime, &buf->st_ctim); - buf->st_dev = pc.volser (); - buf->st_size = ((_off64_t) nFileSizeHigh << 32) + nFileSizeLow; - /* The number of links to a directory includes the - number of subdirectories in the directory, since all - those subdirectories point to it. - This is too slow on remote drives, so we do without it. - Setting the count to 2 confuses `find (1)' command. So - let's try it with `1' as link count. */ - buf->st_nlink = pc.ndisk_links (nNumberOfLinks); - - /* Assume that if a drive has ACL support it MAY have valid "inodes". - It definitely does not have valid inodes if it does not have ACL - support. */ - switch (pc.has_acls () && (nFileIndexHigh || nFileIndexLow) - ? pc.drive_type () : DRIVE_UNKNOWN) - { - case DRIVE_FIXED: - case DRIVE_REMOVABLE: - case DRIVE_CDROM: - case DRIVE_RAMDISK: - /* Although the documentation indicates otherwise, it seems like - "inodes" on these devices are persistent, at least across reboots. */ - buf->st_ino = (((__ino64_t) nFileIndexHigh) << 32) - | (__ino64_t) nFileIndexLow; - break; - default: - /* Either the nFileIndex* fields are unreliable or unavailable. Use the - next best alternative. */ - buf->st_ino = get_namehash (); - break; - } - - buf->st_blksize = S_BLKSIZE; - - /* On compressed and sparsed files, we request the actual amount of bytes - allocated on disk. */ - if (pc.has_attribute (FILE_ATTRIBUTE_COMPRESSED | FILE_ATTRIBUTE_SPARSE_FILE) - && get_io_handle () - && !NtQueryInformationFile (get_io_handle (), &st, (PVOID) &fci, - sizeof fci, FileCompressionInformation)) - buf->st_blocks = (fci.CompressedSize.QuadPart + S_BLKSIZE - 1) / S_BLKSIZE; - else - /* Just compute no. of blocks from file size. */ - buf->st_blocks = (buf->st_size + S_BLKSIZE - 1) / S_BLKSIZE; - - buf->st_mode = 0; - /* Using a side effect: get_file_attibutes checks for - directory. This is used, to set S_ISVTX, if needed. */ - if (pc.isdir ()) - buf->st_mode = S_IFDIR; - else if (pc.issymlink ()) - { - /* symlinks are everything for everyone! */ - buf->st_mode = S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO; - get_file_attribute (pc.has_acls (), get_io_handle (), get_win32_name (), - NULL, &buf->st_uid, &buf->st_gid); - goto done; - } - else if (pc.issocket ()) - buf->st_mode = S_IFSOCK; - - if (!get_file_attribute (pc.has_acls (), get_io_handle (), get_win32_name (), - &buf->st_mode, &buf->st_uid, &buf->st_gid)) - { - /* If read-only attribute is set, modify ntsec return value */ - if (pc.has_attribute (FILE_ATTRIBUTE_READONLY) && !get_symlink_p ()) - buf->st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); - - if (!(buf->st_mode & S_IFMT)) - buf->st_mode |= S_IFREG; - } - else - { - buf->st_mode |= STD_RBITS; - - if (!pc.has_attribute (FILE_ATTRIBUTE_READONLY)) - buf->st_mode |= STD_WBITS; - /* | S_IWGRP | S_IWOTH; we don't give write to group etc */ - - if (S_ISDIR (buf->st_mode)) - buf->st_mode |= S_IFDIR | STD_XBITS; - else if (buf->st_mode & S_IFMT) - /* nothing */; - else if (is_fs_special ()) - { - buf->st_dev = dev (); - buf->st_mode = dev ().mode; - } - else - { - buf->st_mode |= S_IFREG; - if (pc.exec_state () == dont_know_if_executable) - { - DWORD cur, done; - char magic[3]; - - /* First retrieve current position, set to beginning - of file if not already there. */ - cur = SetFilePointer (get_handle (), 0, NULL, FILE_CURRENT); - if (cur != INVALID_SET_FILE_POINTER - && (!cur || SetFilePointer (get_handle (), 0, NULL, FILE_BEGIN) - != INVALID_SET_FILE_POINTER)) - { - /* FIXME should we use /etc/magic ? */ - magic[0] = magic[1] = magic[2] = '\0'; - if (ReadFile (get_handle (), magic, 3, &done, NULL) - && has_exec_chars (magic, done)) - { - set_execable_p (); - pc.set_exec (); - buf->st_mode |= STD_XBITS; - } - (void) SetFilePointer (get_handle (), cur, NULL, FILE_BEGIN); - } - } - } - - if (pc.exec_state () == is_executable) - buf->st_mode |= STD_XBITS; - - /* This fakes the permissions of all files to match the current umask. */ - buf->st_mode &= ~(cygheap->umask); - } - - done: - syscall_printf ("0 = fstat (, %p) st_atime=%x st_size=%D, st_mode=%p, st_ino=%d, sizeof=%d", - buf, buf->st_atime, buf->st_size, buf->st_mode, - (int) buf->st_ino, sizeof (*buf)); - return 0; -} - -int __stdcall -fhandler_disk_file::fstat (struct __stat64 *buf) -{ - return fstat_fs (buf); -} - -fhandler_disk_file::fhandler_disk_file () : - fhandler_base () -{ -} - -int -fhandler_disk_file::open (int flags, mode_t mode) -{ - return open_fs (flags, mode); -} - -int -fhandler_base::open_fs (int flags, mode_t mode) -{ - if (pc.case_clash && flags & O_CREAT) - { - debug_printf ("case clash detected"); - set_errno (ECASECLASH); - return 0; - } - - int res = fhandler_base::open (flags | O_DIROPEN, mode); - if (!res) - goto out; - - /* This is for file systems known for having a buggy CreateFile call - which might return a valid HANDLE without having actually opened - the file. - The only known file system to date is the SUN NFS Solstice Client 3.1 - which returns a valid handle when trying to open a file in a nonexistent - directory. */ - if (pc.has_buggy_open () && !pc.exists ()) - { - debug_printf ("Buggy open detected."); - close_fs (); - set_errno (ENOENT); - return 0; - } - - /* Attributes may be set only if a file is _really_ created. - This code is now only used for ntea here since the files - security attributes are set in CreateFile () now. */ - if (flags & O_CREAT - && GetLastError () != ERROR_ALREADY_EXISTS - && !allow_ntsec && allow_ntea) - set_file_attribute (has_acls (), get_win32_name (), mode); - - set_fs_flags (pc.fs_flags ()); - set_symlink_p (pc.issymlink ()); - set_execable_p (pc.exec_state ()); - set_socket_p (pc.issocket ()); - -out: - syscall_printf ("%d = fhandler_disk_file::open (%s, %p)", res, - get_win32_name (), flags); - return res; -} - -int -fhandler_disk_file::close () -{ - return close_fs (); -} - -int -fhandler_base::close_fs () -{ - int res = fhandler_base::close (); - if (!res) - user_shared->delqueue.process_queue (); - return res; -} - -/* FIXME: The correct way to do this to get POSIX locking semantics is to - keep a linked list of posix lock requests and map them into Win32 locks. - he problem is that Win32 does not deal correctly with overlapping lock - requests. Also another pain is that Win95 doesn't do non-blocking or - non-exclusive locks at all. For '95 just convert all lock requests into - blocking,exclusive locks. This shouldn't break many apps but denying all - locking would. For now just convert to Win32 locks and hope for - the best. */ - -int -fhandler_disk_file::lock (int cmd, struct __flock64 *fl) -{ - _off64_t win32_start; - _off64_t win32_len; - _off64_t startpos; - - /* - * We don't do getlck calls yet. - */ - - if (cmd == F_GETLK) - { - set_errno (ENOSYS); - return -1; - } - - /* - * Calculate where in the file to start from, - * then adjust this by fl->l_start. - */ - - switch (fl->l_whence) - { - case SEEK_SET: - startpos = 0; - break; - case SEEK_CUR: - if ((startpos = lseek (0, SEEK_CUR)) == ILLEGAL_SEEK) - return -1; - break; - case SEEK_END: - { - BY_HANDLE_FILE_INFORMATION finfo; - if (GetFileInformationByHandle (get_handle (), &finfo) == 0) - { - __seterrno (); - return -1; - } - startpos = ((_off64_t)finfo.nFileSizeHigh << 32) - + finfo.nFileSizeLow; - break; - } - default: - set_errno (EINVAL); - return -1; - } - - /* - * Now the fun starts. Adjust the start and length - * fields until they make sense. - */ - - win32_start = startpos + fl->l_start; - if (fl->l_len < 0) - { - win32_start -= fl->l_len; - win32_len = -fl->l_len; - } - else - win32_len = fl->l_len; - - if (win32_start < 0) - { - /* watch the signs! */ - win32_len -= -win32_start; - if (win32_len <= 0) - { - /* Failure ! */ - set_errno (EINVAL); - return -1; - } - win32_start = 0; - } - - DWORD off_high, off_low, len_high, len_low; - - off_low = (DWORD)(win32_start & UINT32_MAX); - off_high = (DWORD)(win32_start >> 32); - if (win32_len == 0) - { - /* Special case if len == 0 for POSIX means lock to the end of - the entire file (and all future extensions). */ - /* CV, 2003-12-03: And yet another Win 9x bugginess. For some reason - offset + length must be <= 0x100000000. I'm using 0xffffffff as - upper border here, this should be sufficient. */ - len_low = UINT32_MAX - (wincap.lock_file_highword () ? 0 : off_low); - len_high = wincap.lock_file_highword (); - } - else - { - len_low = (DWORD)(win32_len & UINT32_MAX); - len_high = (DWORD)(win32_len >> 32); - } - - BOOL res; - - if (wincap.has_lock_file_ex ()) - { - DWORD lock_flags = (cmd == F_SETLK) ? LOCKFILE_FAIL_IMMEDIATELY : 0; - lock_flags |= (fl->l_type == F_WRLCK) ? LOCKFILE_EXCLUSIVE_LOCK : 0; - - OVERLAPPED ov; - - ov.Internal = 0; - ov.InternalHigh = 0; - ov.Offset = off_low; - ov.OffsetHigh = off_high; - ov.hEvent = (HANDLE) 0; - - if (fl->l_type == F_UNLCK) - { - res = UnlockFileEx (get_handle (), 0, len_low, len_high, &ov); - } - else - { - res = LockFileEx (get_handle (), lock_flags, 0, - len_low, len_high, &ov); - /* Deal with the fail immediately case. */ - /* - * FIXME !! I think this is the right error to check for - * but I must admit I haven't checked.... - */ - if ((res == 0) && (lock_flags & LOCKFILE_FAIL_IMMEDIATELY) && - (GetLastError () == ERROR_LOCK_FAILED)) - { - set_errno (EAGAIN); - return -1; - } - } - } - else - { - /* Windows 95 -- use primitive lock call */ - if (fl->l_type == F_UNLCK) - res = UnlockFile (get_handle (), off_low, off_high, len_low, len_high); - else - res = LockFile (get_handle (), off_low, off_high, len_low, len_high); - } - - if (res == 0) - { - __seterrno (); - return -1; - } - - return 0; -} - -DIR * -fhandler_disk_file::opendir () -{ - DIR *dir; - DIR *res = NULL; - size_t len; - - if (!pc.isdir ()) - set_errno (ENOTDIR); - else if ((len = strlen (pc)) > CYG_MAX_PATH - 3) - set_errno (ENAMETOOLONG); - else if ((dir = (DIR *) malloc (sizeof (DIR))) == NULL) - set_errno (ENOMEM); - else if ((dir->__d_dirname = (char *) malloc (len + 3)) == NULL) - { - set_errno (ENOMEM); - goto free_dir; - } - else if ((dir->__d_dirent = - (struct dirent *) malloc (sizeof (struct dirent))) == NULL) - { - set_errno (ENOMEM); - goto free_dirname; - } - else if (fhaccess (R_OK) != 0) - goto free_dirent; - else - { - strcpy (dir->__d_dirname, get_win32_name ()); - dir->__d_dirent->d_version = __DIRENT_VERSION; - cygheap_fdnew fd; - - if (fd < 0) - goto free_dirent; - - fd = this; - fd->set_nohandle (true); - dir->__d_dirent->d_fd = fd; - dir->__fh = this; - /* FindFirstFile doesn't seem to like duplicate /'s. */ - len = strlen (dir->__d_dirname); - if (len == 0 || isdirsep (dir->__d_dirname[len - 1])) - strcat (dir->__d_dirname, "*"); - else - strcat (dir->__d_dirname, "\\*"); /**/ - dir->__d_cookie = __DIRENT_COOKIE; - dir->__handle = INVALID_HANDLE_VALUE; - dir->__d_position = 0; - dir->__d_dirhash = get_namehash (); - - res = dir; - - if (pc.isencoded ()) - set_encoded (); - } - - syscall_printf ("%p = opendir (%s)", res, get_name ()); - return res; - -free_dirent: - free (dir->__d_dirent); -free_dirname: - free (dir->__d_dirname); -free_dir: - free (dir); - return res; -} - -struct dirent * -fhandler_disk_file::readdir (DIR *dir) -{ - WIN32_FIND_DATA buf; - HANDLE handle; - struct dirent *res = NULL; - - if (dir->__handle == INVALID_HANDLE_VALUE - && dir->__d_position == 0) - { - handle = FindFirstFileA (dir->__d_dirname, &buf); - DWORD lasterr = GetLastError (); - dir->__handle = handle; - if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) - { - seterrno_from_win_error (__FILE__, __LINE__, lasterr); - return res; - } - } - else if (dir->__handle == INVALID_HANDLE_VALUE) - return res; - else if (!FindNextFileA (dir->__handle, &buf)) - { - DWORD lasterr = GetLastError (); - (void) FindClose (dir->__handle); - dir->__handle = INVALID_HANDLE_VALUE; - /* POSIX says you shouldn't set errno when readdir can't - find any more files; so, if another error we leave it set. */ - if (lasterr != ERROR_NO_MORE_FILES) - seterrno_from_win_error (__FILE__, __LINE__, lasterr); - syscall_printf ("%p = readdir (%p)", res, dir); - return res; - } - - /* Check for Windows shortcut. If it's a Cygwin or U/WIN - symlink, drop the .lnk suffix. */ - if (buf.dwFileAttributes & FILE_ATTRIBUTE_READONLY) - { - char *c = buf.cFileName; - int len = strlen (c); - if (strcasematch (c + len - 4, ".lnk")) - { - char fbuf[CYG_MAX_PATH + 1]; - strcpy (fbuf, dir->__d_dirname); - strcpy (fbuf + strlen (fbuf) - 1, c); - path_conv fpath (fbuf, PC_SYM_NOFOLLOW); - if (fpath.issymlink () || fpath.isspecial ()) - c[len - 4] = '\0'; - } - } - - /* We get here if `buf' contains valid data. */ - if (get_encoded ()) - (void) fnunmunge (dir->__d_dirent->d_name, buf.cFileName); - else - strcpy (dir->__d_dirent->d_name, buf.cFileName); - - dir->__d_position++; - res = dir->__d_dirent; - syscall_printf ("%p = readdir (%p) (%s)", - &dir->__d_dirent, dir, buf.cFileName); - return res; -} - -_off64_t -fhandler_disk_file::telldir (DIR *dir) -{ - return dir->__d_position; -} - -void -fhandler_disk_file::seekdir (DIR *dir, _off64_t loc) -{ - rewinddir (dir); - while (loc > dir->__d_position) - if (!readdir (dir)) - break; -} - -void -fhandler_disk_file::rewinddir (DIR *dir) -{ - if (dir->__handle != INVALID_HANDLE_VALUE) - { - (void) FindClose (dir->__handle); - dir->__handle = INVALID_HANDLE_VALUE; - } - dir->__d_position = 0; -} - -int -fhandler_disk_file::closedir (DIR *dir) -{ - int res = 0; - if (dir->__handle != INVALID_HANDLE_VALUE && - FindClose (dir->__handle) == 0) - { - __seterrno (); - res = -1; - } - syscall_printf ("%d = closedir (%p)", res, dir); - return 0; -} - -fhandler_cygdrive::fhandler_cygdrive () : - fhandler_disk_file (), ndrives (0), pdrive (NULL) -{ -} - -#define DRVSZ sizeof ("x:\\") -void -fhandler_cygdrive::set_drives () -{ - const int len = 2 + 26 * DRVSZ; - char *p = const_cast<char *> (get_win32_name ()); - pdrive = p; - ndrives = GetLogicalDriveStrings (len, p) / DRVSZ; -} - -int -fhandler_cygdrive::fstat (struct __stat64 *buf) -{ - if (!iscygdrive_root ()) - return fhandler_disk_file::fstat (buf); - buf->st_mode = S_IFDIR | 0555; - if (!ndrives) - set_drives (); - buf->st_nlink = ndrives + 2; - return 0; -} - -DIR * -fhandler_cygdrive::opendir () -{ - DIR *dir; - - dir = fhandler_disk_file::opendir (); - if (dir && iscygdrive_root () && !ndrives) - set_drives (); - - return dir; -} - -struct dirent * -fhandler_cygdrive::readdir (DIR *dir) -{ - if (!iscygdrive_root ()) - return fhandler_disk_file::readdir (dir); - if (!pdrive || !*pdrive) - return NULL; - if (GetFileAttributes (pdrive) == INVALID_FILE_ATTRIBUTES) - { - pdrive = strchr (pdrive, '\0') + 1; - return readdir (dir); - } - - *dir->__d_dirent->d_name = cyg_tolower (*pdrive); - dir->__d_dirent->d_name[1] = '\0'; - dir->__d_position++; - pdrive = strchr (pdrive, '\0') + 1; - syscall_printf ("%p = readdir (%p) (%s)", &dir->__d_dirent, dir, - dir->__d_dirent->d_name); - return dir->__d_dirent; -} - -_off64_t -fhandler_cygdrive::telldir (DIR *dir) -{ - return fhandler_disk_file::telldir (dir); -} - -void -fhandler_cygdrive::seekdir (DIR *dir, _off64_t loc) -{ - if (!iscygdrive_root ()) - return fhandler_disk_file::seekdir (dir, loc); - - for (pdrive = get_win32_name (), dir->__d_position = -1; *pdrive; - pdrive = strchr (pdrive, '\0') + 1) - if (++dir->__d_position >= loc) - break; - - return; -} - -void -fhandler_cygdrive::rewinddir (DIR *dir) -{ - if (!iscygdrive_root ()) - return fhandler_disk_file::rewinddir (dir); - pdrive = get_win32_name (); - dir->__d_position = 0; - return; -} - -int -fhandler_cygdrive::closedir (DIR *dir) -{ - if (!iscygdrive_root ()) - return fhandler_disk_file::closedir (dir); - pdrive = get_win32_name (); - return -1; -} |