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authorcvs2svn <>2006-03-21 03:57:35 +0300
committercvs2svn <>2006-03-21 03:57:35 +0300
commitf84325d0899e5052fd59892ece265f7c2bd6c6a7 (patch)
treefdbea2e5c834b2c023ecd6f1f15ea1474186a4e1 /winsup/cygwin/fhandler_disk_file.cc
parent3078fb4f360e44b436bafcd9e7c51f26792e34b4 (diff)
This commit was manufactured by cvs2svn to create branch 'newlib-newlib-csl-20060320-branchpoint
csl-20060320-branch'. Sprout from master 2006-03-21 00:57:34 UTC Mark Mitchell <mark@codesourcery.com> ' * acconfig.h (_ATEXIT_DYNAMIC_ALLOC): Undef.' Cherrypick from cygnus 1999-05-03 07:29:06 UTC Richard Henderson <rth@redhat.com> '19990502 sourceware import': README config/mh-armpic config/mh-elfalphapic config/mh-m68kpic config/mh-papic config/mh-ppcpic config/mh-x86pic config/mt-d30v config/mt-netware config/mt-ospace etc/add-log.el etc/add-log.vi etc/configbuild.ein etc/configbuild.fig etc/configbuild.jin etc/configbuild.tin etc/configdev.ein etc/configdev.fig etc/configdev.jin etc/configdev.tin etc/configure etc/configure.in makefile.vms Delete: compile djunpack.bat include/COPYING include/ChangeLog include/ChangeLog-9103 include/MAINTAINERS include/alloca-conf.h include/ansidecl.h include/aout/ChangeLog include/aout/adobe.h include/aout/aout64.h include/aout/ar.h include/aout/dynix3.h include/aout/encap.h include/aout/host.h include/aout/hp.h include/aout/hp300hpux.h include/aout/hppa.h include/aout/ranlib.h include/aout/reloc.h include/aout/stab.def include/aout/stab_gnu.h include/aout/sun4.h include/bfdlink.h include/bin-bugs.h include/bout.h include/coff/ChangeLog include/coff/ChangeLog-9103 include/coff/alpha.h include/coff/apollo.h include/coff/arm.h include/coff/aux-coff.h include/coff/ecoff.h include/coff/external.h include/coff/go32exe.h include/coff/h8300.h include/coff/h8500.h include/coff/i386.h include/coff/i860.h include/coff/i960.h include/coff/ia64.h include/coff/internal.h include/coff/m68k.h include/coff/m88k.h include/coff/maxq.h include/coff/mcore.h include/coff/mips.h include/coff/mipspe.h include/coff/or32.h include/coff/pe.h include/coff/powerpc.h include/coff/rs6000.h include/coff/rs6k64.h include/coff/sh.h include/coff/sparc.h include/coff/sym.h include/coff/symconst.h include/coff/ti.h include/coff/tic30.h include/coff/tic4x.h include/coff/tic54x.h include/coff/tic80.h include/coff/w65.h include/coff/we32k.h include/coff/xcoff.h include/coff/z80.h include/coff/z8k.h include/demangle.h include/dis-asm.h include/dyn-string.h include/elf/ChangeLog 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winsup/w32api/include/ddk/hidpi.h winsup/w32api/include/ddk/hidsdi.h winsup/w32api/include/ddk/hidusage.h winsup/w32api/include/ddk/kbdmou.h winsup/w32api/include/ddk/mcd.h winsup/w32api/include/ddk/miniport.h winsup/w32api/include/ddk/minitape.h winsup/w32api/include/ddk/mountdev.h winsup/w32api/include/ddk/mountmgr.h winsup/w32api/include/ddk/ndis.h winsup/w32api/include/ddk/ndisguid.h winsup/w32api/include/ddk/ndistapi.h winsup/w32api/include/ddk/ndiswan.h winsup/w32api/include/ddk/netevent.h winsup/w32api/include/ddk/netpnp.h winsup/w32api/include/ddk/newdev.h winsup/w32api/include/ddk/ntapi.h winsup/w32api/include/ddk/ntdd8042.h winsup/w32api/include/ddk/ntddbeep.h winsup/w32api/include/ddk/ntddcdrm.h winsup/w32api/include/ddk/ntddcdvd.h winsup/w32api/include/ddk/ntddchgr.h winsup/w32api/include/ddk/ntdddisk.h winsup/w32api/include/ddk/ntddk.h winsup/w32api/include/ddk/ntddkbd.h winsup/w32api/include/ddk/ntddmou.h winsup/w32api/include/ddk/ntddndis.h winsup/w32api/include/ddk/ntddpar.h winsup/w32api/include/ddk/ntddpcm.h winsup/w32api/include/ddk/ntddscsi.h winsup/w32api/include/ddk/ntddser.h winsup/w32api/include/ddk/ntddstor.h winsup/w32api/include/ddk/ntddtape.h winsup/w32api/include/ddk/ntddtdi.h winsup/w32api/include/ddk/ntddvdeo.h winsup/w32api/include/ddk/ntddvol.h winsup/w32api/include/ddk/ntifs.h winsup/w32api/include/ddk/ntpoapi.h winsup/w32api/include/ddk/ntstatus.h winsup/w32api/include/ddk/parallel.h winsup/w32api/include/ddk/pfhook.h winsup/w32api/include/ddk/poclass.h winsup/w32api/include/ddk/scsi.h winsup/w32api/include/ddk/scsiscan.h winsup/w32api/include/ddk/scsiwmi.h winsup/w32api/include/ddk/smbus.h winsup/w32api/include/ddk/srb.h winsup/w32api/include/ddk/storport.h winsup/w32api/include/ddk/tdi.h winsup/w32api/include/ddk/tdiinfo.h winsup/w32api/include/ddk/tdikrnl.h winsup/w32api/include/ddk/tdistat.h winsup/w32api/include/ddk/tvout.h winsup/w32api/include/ddk/upssvc.h winsup/w32api/include/ddk/usb.h 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winsup/w32api/include/idispids.h winsup/w32api/include/imagehlp.h winsup/w32api/include/imm.h winsup/w32api/include/initguid.h winsup/w32api/include/intshcut.h winsup/w32api/include/ipexport.h winsup/w32api/include/iphlpapi.h winsup/w32api/include/ipifcons.h winsup/w32api/include/iprtrmib.h winsup/w32api/include/iptypes.h winsup/w32api/include/isguids.h winsup/w32api/include/largeint.h winsup/w32api/include/lm.h winsup/w32api/include/lmaccess.h winsup/w32api/include/lmalert.h winsup/w32api/include/lmapibuf.h winsup/w32api/include/lmat.h winsup/w32api/include/lmaudit.h winsup/w32api/include/lmbrowsr.h winsup/w32api/include/lmchdev.h winsup/w32api/include/lmconfig.h winsup/w32api/include/lmcons.h winsup/w32api/include/lmerr.h winsup/w32api/include/lmerrlog.h winsup/w32api/include/lmmsg.h winsup/w32api/include/lmremutl.h winsup/w32api/include/lmrepl.h winsup/w32api/include/lmserver.h winsup/w32api/include/lmshare.h winsup/w32api/include/lmsname.h winsup/w32api/include/lmstats.h winsup/w32api/include/lmsvc.h winsup/w32api/include/lmuse.h winsup/w32api/include/lmuseflg.h winsup/w32api/include/lmwksta.h winsup/w32api/include/lzexpand.h winsup/w32api/include/mapi.h winsup/w32api/include/mciavi.h winsup/w32api/include/mcx.h winsup/w32api/include/mgmtapi.h winsup/w32api/include/mmsystem.h winsup/w32api/include/msacm.h winsup/w32api/include/mshtml.h winsup/w32api/include/mswsock.h winsup/w32api/include/nb30.h winsup/w32api/include/nddeapi.h winsup/w32api/include/nspapi.h winsup/w32api/include/ntdef.h winsup/w32api/include/ntdll.h winsup/w32api/include/ntldap.h winsup/w32api/include/ntsecapi.h winsup/w32api/include/ntsecpkg.h winsup/w32api/include/oaidl.h winsup/w32api/include/objbase.h winsup/w32api/include/objfwd.h winsup/w32api/include/objidl.h winsup/w32api/include/objsafe.h winsup/w32api/include/ocidl.h winsup/w32api/include/odbcinst.h winsup/w32api/include/ole.h winsup/w32api/include/ole2.h winsup/w32api/include/ole2ver.h winsup/w32api/include/oleacc.h winsup/w32api/include/oleauto.h winsup/w32api/include/olectl.h winsup/w32api/include/olectlid.h winsup/w32api/include/oledlg.h winsup/w32api/include/oleidl.h winsup/w32api/include/pbt.h winsup/w32api/include/poppack.h winsup/w32api/include/powrprof.h winsup/w32api/include/prsht.h winsup/w32api/include/psapi.h winsup/w32api/include/pshpack1.h winsup/w32api/include/pshpack2.h winsup/w32api/include/pshpack4.h winsup/w32api/include/pshpack8.h winsup/w32api/include/rapi.h winsup/w32api/include/ras.h winsup/w32api/include/rasdlg.h winsup/w32api/include/raserror.h winsup/w32api/include/rassapi.h winsup/w32api/include/reason.h winsup/w32api/include/regstr.h winsup/w32api/include/richedit.h winsup/w32api/include/richole.h winsup/w32api/include/rpc.h winsup/w32api/include/rpcdce.h winsup/w32api/include/rpcdce2.h winsup/w32api/include/rpcdcep.h winsup/w32api/include/rpcndr.h winsup/w32api/include/rpcnsi.h winsup/w32api/include/rpcnsip.h winsup/w32api/include/rpcnterr.h winsup/w32api/include/rpcproxy.h winsup/w32api/include/schannel.h winsup/w32api/include/schnlsp.h winsup/w32api/include/scrnsave.h winsup/w32api/include/sddl.h winsup/w32api/include/secext.h winsup/w32api/include/security.h winsup/w32api/include/servprov.h winsup/w32api/include/setupapi.h winsup/w32api/include/shellapi.h winsup/w32api/include/shldisp.h winsup/w32api/include/shlguid.h winsup/w32api/include/shlobj.h winsup/w32api/include/shlwapi.h winsup/w32api/include/snmp.h winsup/w32api/include/sql.h winsup/w32api/include/sqlext.h winsup/w32api/include/sqltypes.h winsup/w32api/include/sqlucode.h winsup/w32api/include/sspi.h winsup/w32api/include/subauth.h winsup/w32api/include/svcguid.h winsup/w32api/include/tlhelp32.h winsup/w32api/include/tmschema.h winsup/w32api/include/unknwn.h winsup/w32api/include/userenv.h winsup/w32api/include/uxtheme.h winsup/w32api/include/vfw.h winsup/w32api/include/w32api.h winsup/w32api/include/winable.h winsup/w32api/include/winbase.h winsup/w32api/include/winber.h winsup/w32api/include/wincon.h winsup/w32api/include/wincrypt.h winsup/w32api/include/windef.h winsup/w32api/include/windns.h winsup/w32api/include/windows.h winsup/w32api/include/windowsx.h winsup/w32api/include/winerror.h winsup/w32api/include/wingdi.h winsup/w32api/include/wininet.h winsup/w32api/include/winioctl.h winsup/w32api/include/winldap.h winsup/w32api/include/winnetwk.h winsup/w32api/include/winnls.h winsup/w32api/include/winnt.h winsup/w32api/include/winperf.h winsup/w32api/include/winreg.h winsup/w32api/include/winresrc.h winsup/w32api/include/winsnmp.h winsup/w32api/include/winsock.h winsup/w32api/include/winsock2.h winsup/w32api/include/winspool.h winsup/w32api/include/winsvc.h winsup/w32api/include/winuser.h winsup/w32api/include/winver.h winsup/w32api/include/ws2spi.h winsup/w32api/include/ws2tcpip.h winsup/w32api/include/wsahelp.h winsup/w32api/include/wsipx.h winsup/w32api/include/wsnetbs.h winsup/w32api/include/wtypes.h winsup/w32api/include/zmouse.h winsup/w32api/install-sh winsup/w32api/lib/Makefile.in winsup/w32api/lib/aclui.def winsup/w32api/lib/advapi32.def winsup/w32api/lib/avicap32.def winsup/w32api/lib/avifil32.def winsup/w32api/lib/cap.def winsup/w32api/lib/comctl32.def winsup/w32api/lib/comdlg32.def winsup/w32api/lib/crypt32.def winsup/w32api/lib/ctl3d32.def winsup/w32api/lib/ddk/Makefile.in winsup/w32api/lib/ddk/apcups.def winsup/w32api/lib/ddk/cfgmgr32.def winsup/w32api/lib/ddk/dxapi.def winsup/w32api/lib/ddk/hal.def winsup/w32api/lib/ddk/hid.def winsup/w32api/lib/ddk/hidparse.def winsup/w32api/lib/ddk/mcd.def winsup/w32api/lib/ddk/ndis.def winsup/w32api/lib/ddk/newdev.def winsup/w32api/lib/ddk/ntoskrnl.def winsup/w32api/lib/ddk/scsiport.def winsup/w32api/lib/ddk/tdi.def winsup/w32api/lib/ddk/usbcamd.def winsup/w32api/lib/ddk/usbcamd2.def winsup/w32api/lib/ddk/videoprt.def winsup/w32api/lib/ddk/win32k.def winsup/w32api/lib/dhcpcsvc.def winsup/w32api/lib/directx/Makefile.in winsup/w32api/lib/directx/d3d8.def winsup/w32api/lib/directx/d3d9.def winsup/w32api/lib/directx/d3dim.def winsup/w32api/lib/directx/d3drm.def winsup/w32api/lib/directx/d3dx8d.def winsup/w32api/lib/directx/d3dx9d.def winsup/w32api/lib/directx/d3dxof.def winsup/w32api/lib/directx/ddraw.def winsup/w32api/lib/directx/dinput.def winsup/w32api/lib/directx/dinput8.def winsup/w32api/lib/directx/dinput_joy.c winsup/w32api/lib/directx/dinput_joy2.c winsup/w32api/lib/directx/dinput_kbd.c winsup/w32api/lib/directx/dinput_mouse.c winsup/w32api/lib/directx/dinput_mouse2.c winsup/w32api/lib/directx/dinput_private.h winsup/w32api/lib/directx/dmoguids.c winsup/w32api/lib/directx/dplayx.def winsup/w32api/lib/directx/dpnaddr.def winsup/w32api/lib/directx/dpnet.def winsup/w32api/lib/directx/dpnlobby.def winsup/w32api/lib/directx/dpvoice.def winsup/w32api/lib/directx/dsetup.def winsup/w32api/lib/directx/dsound.def winsup/w32api/lib/directx/dxerr.c winsup/w32api/lib/directx/dxerr8.c winsup/w32api/lib/directx/dxerr8w.c winsup/w32api/lib/directx/dxerr9.c winsup/w32api/lib/directx/dxerr9w.c winsup/w32api/lib/directx/dxguid.c winsup/w32api/lib/directx/ksproxy.def winsup/w32api/lib/directx/ksuser.c winsup/w32api/lib/directx/ksuser.def winsup/w32api/lib/directx/msdmo.def winsup/w32api/lib/directx/quartz.def winsup/w32api/lib/directx/strmiids.c winsup/w32api/lib/directx/test.c winsup/w32api/lib/dlcapi.def winsup/w32api/lib/dnsapi.def winsup/w32api/lib/faultrep.def winsup/w32api/lib/gdi32.def winsup/w32api/lib/glaux.def winsup/w32api/lib/glu32.def winsup/w32api/lib/glut.def winsup/w32api/lib/glut32.def winsup/w32api/lib/igmpagnt.def winsup/w32api/lib/imagehlp.def winsup/w32api/lib/imm32.def winsup/w32api/lib/iphlpapi.def winsup/w32api/lib/kernel32.c winsup/w32api/lib/kernel32.def winsup/w32api/lib/largeint.c winsup/w32api/lib/lz32.def winsup/w32api/lib/mapi32.def winsup/w32api/lib/mfcuia32.def winsup/w32api/lib/mgmtapi.def winsup/w32api/lib/mpr.def winsup/w32api/lib/msacm32.def winsup/w32api/lib/mshtml-uuid.c winsup/w32api/lib/msimg32.def winsup/w32api/lib/msvcp60.def winsup/w32api/lib/msvfw32.def winsup/w32api/lib/mswsock.def winsup/w32api/lib/msxml-uuid.c winsup/w32api/lib/nddeapi.def winsup/w32api/lib/netapi32.def winsup/w32api/lib/ntdll.def winsup/w32api/lib/odbc32.def winsup/w32api/lib/odbccp32.def winsup/w32api/lib/ole32.def winsup/w32api/lib/oleacc.def winsup/w32api/lib/oleaut32.def winsup/w32api/lib/olecli32.def winsup/w32api/lib/oledlg.def winsup/w32api/lib/olepro32.def winsup/w32api/lib/olesvr32.def winsup/w32api/lib/opengl32.def winsup/w32api/lib/penwin32.def winsup/w32api/lib/pkpd32.def winsup/w32api/lib/powrprof.def winsup/w32api/lib/psapi.def winsup/w32api/lib/rapi.def winsup/w32api/lib/rasapi32.def winsup/w32api/lib/rasdlg.def winsup/w32api/lib/res.rc winsup/w32api/lib/rpcdce4.def winsup/w32api/lib/rpcns4.def winsup/w32api/lib/rpcrt4.def winsup/w32api/lib/scrnsave.c winsup/w32api/lib/secur32.def winsup/w32api/lib/setupapi.def winsup/w32api/lib/shell32.c winsup/w32api/lib/shell32.def winsup/w32api/lib/shfolder.def winsup/w32api/lib/shlwapi.def winsup/w32api/lib/snmpapi.def winsup/w32api/lib/svrapi.def winsup/w32api/lib/tapi32.def winsup/w32api/lib/test.c winsup/w32api/lib/th32.def winsup/w32api/lib/thunk32.def winsup/w32api/lib/url.def winsup/w32api/lib/user32.def winsup/w32api/lib/userenv.def winsup/w32api/lib/uuid.c winsup/w32api/lib/uxtheme.def winsup/w32api/lib/vdmdbg.def winsup/w32api/lib/version.def winsup/w32api/lib/vfw32.mri winsup/w32api/lib/win32spl.def winsup/w32api/lib/wininet.def winsup/w32api/lib/winmm.def winsup/w32api/lib/winspool.def winsup/w32api/lib/winstrm.def winsup/w32api/lib/wldap32.def winsup/w32api/lib/wow32.def winsup/w32api/lib/ws2_32.c winsup/w32api/lib/ws2_32.def winsup/w32api/lib/wsnmp32.def winsup/w32api/lib/wsock32.def winsup/w32api/lib/wst.def winsup/w32api/lib/wtsapi32.def
Diffstat (limited to 'winsup/cygwin/fhandler_disk_file.cc')
-rw-r--r--winsup/cygwin/fhandler_disk_file.cc2034
1 files changed, 0 insertions, 2034 deletions
diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc
deleted file mode 100644
index 0c1ed37ab..000000000
--- a/winsup/cygwin/fhandler_disk_file.cc
+++ /dev/null
@@ -1,2034 +0,0 @@
-/* fhandler_disk_file.cc
-
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006 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 <sys/acl.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>
-#include <winioctl.h>
-
-#define _COMPILING_NEWLIB
-#include <dirent.h>
-
-class __DIR_mounts
-{
- int count;
- const char *parent_dir;
- int parent_dir_len;
- char *mounts[MAX_MOUNTS];
- bool found[MAX_MOUNTS + 2];
-
-#define __DIR_PROC (MAX_MOUNTS)
-#define __DIR_CYGDRIVE (MAX_MOUNTS+1)
-
- __ino64_t eval_ino (int idx)
- {
- __ino64_t ino = 0;
- char fname[CYG_MAX_PATH];
- struct __stat64 st;
- int len = parent_dir_len;
-
- strcpy (fname, parent_dir);
- if (fname[len - 1] != '/')
- fname[len++] = '/';
- strcpy (fname + len, mounts[idx]);
- if (!lstat64 (fname, &st))
- ino = st.st_ino;
- return ino;
- }
-
-public:
- __DIR_mounts (const char *posix_path)
- : parent_dir (posix_path)
- {
- parent_dir_len = strlen (parent_dir);
- count = mount_table->get_mounts_here (parent_dir, parent_dir_len, mounts);
- rewind ();
- }
- __ino64_t check_mount (const char *name, __ino64_t ino, bool eval = true)
- {
- if (parent_dir_len == 1) /* root dir */
- {
- if (strcasematch (name, "proc"))
- {
- found[__DIR_PROC] = true;
- return hash_path_name (0, "/proc");
- }
- if (strlen (name) == mount_table->cygdrive_len - 2
- && strncasematch (name, mount_table->cygdrive + 1,
- mount_table->cygdrive_len - 2))
- {
- found[__DIR_CYGDRIVE] = true;
- return 2;
- }
- }
- for (int i = 0; i < count; ++i)
- if (strcasematch (name, mounts[i]))
- {
- found[i] = true;
- return eval ? eval_ino (i) : 1;
- }
- return ino;
- }
- __ino64_t check_missing_mount (char *ret_name, bool eval = true)
- {
- for (int i = 0; i < count; ++i)
- if (!found[i])
- {
- found[i] = true;
- strcpy (ret_name, mounts[i]);
- return eval ? eval_ino (i) : 1;
- }
- if (parent_dir_len == 1) /* root dir */
- {
- if (!found[__DIR_PROC])
- {
- found[__DIR_PROC] = true;
- strcpy (ret_name, "proc");
- return hash_path_name (0, "/proc");
- }
- if (!found[__DIR_CYGDRIVE])
- {
- found[__DIR_CYGDRIVE] = true;
- if (mount_table->cygdrive_len > 1)
- {
- strncpy (ret_name, mount_table->cygdrive + 1,
- mount_table->cygdrive_len - 2);
- ret_name[mount_table->cygdrive_len - 2] = '\0';
- return 2;
- }
- }
- }
- return 0;
- }
- void rewind () { memset (found, 0, sizeof found); }
-};
-
-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;
- __DIR_mounts *dir = new __DIR_mounts (normalized_path);
- 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--;
- dir->check_mount (buf.cFileName, 0, false);
- }
- while (FindNextFileA (h, &buf));
- FindClose (h);
- }
-
- if (nNumberOfLinks > 1)
- {
- fn[len + 2] = '\0';
- h = FindFirstFile (fn, &buf);
- if (h)
- saw_dot--;
- FindClose (h);
- }
- while (dir->check_missing_mount (buf.cFileName, false))
- ++count;
-
- delete dir;
-
- return count + saw_dot;
-}
-
-#define FS_IS_SAMBA (FILE_CASE_SENSITIVE_SEARCH \
- | FILE_CASE_PRESERVED_NAMES \
- | FILE_PERSISTENT_ACLS)
-
-bool
-path_conv::hasgood_inode ()
-{
- /* 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. Decouple from has_acls() which follows smbntsec setting. */
- if (!(fs_flags () & FILE_PERSISTENT_ACLS) || drive_type () == DRIVE_UNKNOWN)
- return false;
- if (drive_type () == DRIVE_REMOTE)
- {
- /* From own experiments and replies from the Cygwin mailing list,
- we're now trying to figure out how to determine remote file
- systems which are capable of returning persistent inode
- numbers. It seems that NT4 NTFS, when accessed remotly, and
- some other remote file systems return unreliable values in
- nFileIndex. The common factor of these unreliable remote FS
- seem to be that FILE_SUPPORTS_OBJECT_IDS isn't set, even though
- this should have nothing to do with inode numbers.
- An exception is Samba, which seems to return valid inode numbers
- without having the FILE_SUPPORTS_OBJECT_IDS flag set. So we're
- testing for the flag values returned by a 3.x Samba explicitely
- for now. But note the comment in the below "is_samba" function. */
- if (!(fs_flags () & FILE_SUPPORTS_OBJECT_IDS)
- && fs_flags () != FS_IS_SAMBA)
- return false;
- }
- return true;
-}
-
-bool
-path_conv::is_samba ()
-{
- /* Something weird happens on Samba. FileIdBothDirectoryInformation
- seems to work nicely, but only up to the 128th entry in the
- directory. After reaching this entry, the next call to
- NtQueryDirectoryFile(FileIdBothDirectoryInformation) returns
- STATUS_INVAILD_LEVEL. Why should we care, we can just switch to
- FileBothDirectoryInformation, isn't it? Nope! The next call to
- NtQueryDirectoryFile(FileBothDirectoryInformation) actually returns
- STATUS_NO_MORE_FILES, regardless how many files are left unread in
- the directory. This does not happen when using
- FileBothDirectoryInformation right from the start. In that case we
- can read the whole directory unmolested. So we have to excempt
- Samba from the usage of FileIdBothDirectoryInformation entirely,
- even though Samba returns valid File IDs. */
- return drive_type () == DRIVE_REMOTE && fs_flags () == FS_IS_SAMBA;
-}
-
-int __stdcall
-fhandler_base::fstat_by_handle (struct __stat64 *buf)
-{
- BY_HANDLE_FILE_INFORMATION local;
-
- if (wincap.is_winnt ())
- {
- NTSTATUS status;
- IO_STATUS_BLOCK io;
- /* The entries potentially contain a name of MAX_PATH wide characters. */
- DWORD fvi_size = 2 * CYG_MAX_PATH + sizeof (FILE_FS_VOLUME_INFORMATION);
- DWORD fai_size = 2 * CYG_MAX_PATH + sizeof (FILE_ALL_INFORMATION);
-
- PFILE_FS_VOLUME_INFORMATION pfvi = (PFILE_FS_VOLUME_INFORMATION)
- alloca (fvi_size);
- PFILE_ALL_INFORMATION pfai = (PFILE_ALL_INFORMATION) alloca (fai_size);
-
- status = NtQueryVolumeInformationFile (get_handle (), &io, pfvi, fvi_size,
- FileFsVolumeInformation);
- if (!NT_SUCCESS (status))
- {
- debug_printf ("%u = NtQueryVolumeInformationFile)",
- RtlNtStatusToDosError (status));
- pfvi->VolumeSerialNumber = 0; /* Set to pc.volser () in helper. */
- }
- status = NtQueryInformationFile (get_handle (), &io, pfai, fai_size,
- FileAllInformation);
- if (NT_SUCCESS (status))
- {
- /* If the change time is 0, it's a file system which doesn't
- support a change timestamp. In that case use the LastWriteTime
- entry, as in other calls to fstat_helper. */
- pc.file_attributes (pfai->BasicInformation.FileAttributes);
- return fstat_helper (buf,
- pfai->BasicInformation.ChangeTime.QuadPart ?
- *(FILETIME *) &pfai->BasicInformation.ChangeTime :
- *(FILETIME *) &pfai->BasicInformation.LastWriteTime,
- *(FILETIME *) &pfai->BasicInformation.LastAccessTime,
- *(FILETIME *) &pfai->BasicInformation.LastWriteTime,
- pfvi->VolumeSerialNumber,
- pfai->StandardInformation.EndOfFile.HighPart,
- pfai->StandardInformation.EndOfFile.LowPart,
- pfai->StandardInformation.AllocationSize.QuadPart,
- pfai->InternalInformation.FileId.HighPart,
- pfai->InternalInformation.FileId.LowPart,
- pfai->StandardInformation.NumberOfLinks,
- pfai->BasicInformation.FileAttributes);
- }
-
- debug_printf ("%u = NtQueryInformationFile)",
- RtlNtStatusToDosError (status));
- }
-
- 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.
- It also fails on 9x when trying to access directories on shares. */
- if (!res)
- {
- memset (&local, 0, sizeof (local));
- local.nFileSizeLow = GetFileSize (get_handle (), &local.nFileSizeHigh);
- /* Even GetFileSize fails on 9x when trying to access directories
- on shares. In this case reset filesize to 0. */
- if (local.nFileSizeLow == 0xffffffff && GetLastError ())
- local.nFileSizeLow = 0;
- local.dwFileAttributes = DWORD (pc);
- }
- else
- pc.file_attributes (local.dwFileAttributes);
- return fstat_helper (buf,
- local.ftLastWriteTime, /* see fstat_helper comment */
- local.ftLastAccessTime,
- local.ftLastWriteTime,
- local.dwVolumeSerialNumber,
- local.nFileSizeHigh,
- local.nFileSizeLow,
- -1LL,
- local.nFileIndexHigh,
- local.nFileIndexLow,
- local.nNumberOfLinks,
- local.dwFileAttributes);
-}
-
-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);
- pc.file_attributes (local.dwFileAttributes);
- res = fstat_helper (buf,
- local.ftLastWriteTime, /* see fstat_helper comment */
- local.ftLastAccessTime,
- local.ftLastWriteTime,
- pc.volser (),
- local.nFileSizeHigh,
- local.nFileSizeLow,
- -1LL,
- 0,
- 0,
- 1,
- local.dwFileAttributes);
- }
- else if (pc.isdir ())
- {
- FILETIME ft = {};
- res = fstat_helper (buf, ft, ft, ft, pc.volser (), 0, 0, -1LL, 0, 0, 1,
- FILE_ATTRIBUTE_DIRECTORY);
- }
- 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 (nohandle () || is_fs_special ())
- 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)
- {
- if (pc.fs_is_fat () && !strpbrk (get_win32_name (), "?*|<>"))
- return fstat_by_name (buf);
- query_open (query_stat_control);
- }
- 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);
- query_open (query_read_control);
- 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 !nohandle,
- we have to set it to false before calling close_fs and restore
- the state afterwards. */
- res = fstat_by_handle (buf);
- bool no_handle = nohandle ();
- nohandle (false);
- close_fs ();
- nohandle (no_handle);
- set_io_handle (NULL);
- }
- else
- res = fstat_by_name (buf);
-
- return res;
-}
-
-/* The ftChangeTime is taken from the NTFS ChangeTime entry, if reading
- the file information using NtQueryInformationFile succeeded. If not,
- it's faked using the LastWriteTime entry from GetFileInformationByHandle
- or FindFirstFile. We're deliberatly not using the creation time anymore
- to simplify interaction with native Windows applications which choke on
- creation times >= access or write times.
-
- Note that the dwFileAttributes member of the file information evaluated
- in the calling function is used here, not the pc.fileattr member, since
- the latter might be old and not reflect the actual state of the file. */
-int __stdcall
-fhandler_base::fstat_helper (struct __stat64 *buf,
- FILETIME ftChangeTime,
- FILETIME ftLastAccessTime,
- FILETIME ftLastWriteTime,
- DWORD dwVolumeSerialNumber,
- DWORD nFileSizeHigh,
- DWORD nFileSizeLow,
- LONGLONG nAllocSize,
- DWORD nFileIndexHigh,
- DWORD nFileIndexLow,
- DWORD nNumberOfLinks,
- DWORD dwFileAttributes)
-{
- IO_STATUS_BLOCK st;
- FILE_COMPRESSION_INFORMATION fci;
-
- to_timestruc_t (&ftLastAccessTime, &buf->st_atim);
- to_timestruc_t (&ftLastWriteTime, &buf->st_mtim);
- to_timestruc_t (&ftChangeTime, &buf->st_ctim);
- buf->st_dev = dwVolumeSerialNumber ?: 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);
-
- if (pc.hasgood_inode ())
- buf->st_ino = (((__ino64_t) nFileIndexHigh) << 32)
- | (__ino64_t) nFileIndexLow;
- else
- buf->st_ino = get_namehash ();
-
- buf->st_blksize = S_BLKSIZE;
-
- if (nAllocSize >= 0LL)
- /* A successful NtQueryInformationFile returns the allocation size
- correctly for compressed and sparse files as well. */
- buf->st_blocks = (nAllocSize + S_BLKSIZE - 1) / S_BLKSIZE;
- else if (::has_attribute (dwFileAttributes, FILE_ATTRIBUTE_COMPRESSED
- | FILE_ATTRIBUTE_SPARSE_FILE)
- && get_io_handle () && !is_fs_special ()
- && !NtQueryInformationFile (get_io_handle (), &st, (PVOID) &fci,
- sizeof fci, FileCompressionInformation))
- /* Otherwise we request the actual amount of bytes allocated for
- compressed and sparsed files. */
- buf->st_blocks = (fci.CompressedSize.QuadPart + S_BLKSIZE - 1) / S_BLKSIZE;
- else
- /* Otherwise 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 ())
- {
- buf->st_size = pc.get_symlink_length ();
- /* 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 (),
- is_fs_special () ? NULL: 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 (::has_attribute (dwFileAttributes, FILE_ATTRIBUTE_READONLY)
- && !pc.issymlink ())
- buf->st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
-
- if (buf->st_mode & S_IFMT)
- /* nothing */;
- else if (!is_fs_special ())
- buf->st_mode |= S_IFREG;
- else
- {
- buf->st_dev = dev ();
- buf->st_mode = dev ().mode;
- buf->st_size = 0;
- }
- }
- else
- {
- buf->st_mode |= STD_RBITS;
-
- if (!::has_attribute (dwFileAttributes, FILE_ATTRIBUTE_READONLY)
- && !pc.issymlink ())
- 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;
- buf->st_size = 0;
- }
- 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))
- {
- pc.set_exec ();
- buf->st_mode |= STD_XBITS;
- }
- 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,
- buf->st_ino, sizeof (*buf));
- return 0;
-}
-
-int __stdcall
-fhandler_disk_file::fstat (struct __stat64 *buf)
-{
- /* Changing inode data requires setting ctime (only 9x). */
- if (has_changed ())
- touch_ctime ();
- return fstat_fs (buf);
-}
-
-void
-fhandler_disk_file::touch_ctime ()
-{
- FILETIME ft;
-
- GetSystemTimeAsFileTime (&ft);
- /* Modification time is touched if the file data has changed as well.
- This happens for instance on write() or ftruncate(). */
- if (!SetFileTime (get_io_handle (), NULL, NULL, &ft))
- debug_printf ("SetFileTime (%s) failed, %E", get_win32_name ());
- else
- has_changed (false);
-}
-
-int __stdcall
-fhandler_disk_file::fchmod (mode_t mode)
-{
- extern int chmod_device (path_conv& pc, mode_t mode);
- int res = -1;
- int oret = 0;
-
- if (pc.is_fs_special ())
- return chmod_device (pc, mode);
-
- /* Also open on 9x, otherwise we can't touch ctime. */
- if (!get_io_handle ())
- {
- query_open (query_write_control);
- if (!(oret = open (O_BINARY, 0)))
- {
- /* If the file couldn't be opened, that's really only a problem if
- ACLs or EAs should get written. */
- if ((allow_ntsec && pc.has_acls ()) || allow_ntea)
- return -1;
- }
- }
-
- if ((allow_ntsec && pc.has_acls ()) || allow_ntea)
- {
- if (!allow_ntsec && allow_ntea) /* Not necessary when manipulating SD. */
- SetFileAttributes (pc, (DWORD) pc & ~FILE_ATTRIBUTE_READONLY);
- if (pc.isdir ())
- mode |= S_IFDIR;
- if (!set_file_attribute (pc.has_acls (), get_io_handle (), pc,
- ILLEGAL_UID, ILLEGAL_GID, mode)
- && allow_ntsec)
- res = 0;
- }
-
- /* if the mode we want has any write bits set, we can't be read only. */
- if (mode & (S_IWUSR | S_IWGRP | S_IWOTH))
- pc &= (DWORD) ~FILE_ATTRIBUTE_READONLY;
- else
- pc |= (DWORD) FILE_ATTRIBUTE_READONLY;
-
- if (!SetFileAttributes (pc, pc))
- __seterrno ();
- else if (!allow_ntsec || !pc.has_acls ())
- /* Correct NTFS security attributes have higher priority */
- res = 0;
-
- /* Set ctime on success. */
- if (!res && !wincap.is_winnt ())
- has_changed (true);
-
- if (oret)
- close ();
-
- return res;
-}
-
-int __stdcall
-fhandler_disk_file::fchown (__uid32_t uid, __gid32_t gid)
-{
- int oret = 0;
-
- if (!pc.has_acls () || !allow_ntsec)
- {
- /* fake - if not supported, pretend we're like win95
- where it just works */
- return 0;
- }
-
- if (!get_io_handle ())
- {
- query_open (query_write_control);
- if (!(oret = fhandler_disk_file::open (O_BINARY, 0)))
- return -1;
- }
-
- mode_t attrib = 0;
- if (pc.isdir ())
- attrib |= S_IFDIR;
- int res = get_file_attribute (pc.has_acls (), get_io_handle (), pc, &attrib);
- if (!res)
- {
- /* Typical Windows default ACLs can contain permissions for one
- group, while being owned by another user/group. The permission
- bits returned above are pretty much useless then. Creating a
- new ACL with these useless permissions results in a potentially
- broken symlink. So what we do here is to set the underlying
- permissions of symlinks to a sensible value which allows the
- world to read the symlink and only the new owner to change it. */
- if (pc.issymlink ())
- attrib = S_IFLNK | STD_RBITS | STD_WBITS;
- res = set_file_attribute (pc.has_acls (), get_io_handle (), pc,
- uid, gid, attrib);
- }
- if (oret)
- close ();
-
- return res;
-}
-
-int _stdcall
-fhandler_disk_file::facl (int cmd, int nentries, __aclent32_t *aclbufp)
-{
- int res = -1;
- int oret = 0;
-
- if (!pc.has_acls () || !allow_ntsec)
- {
- switch (cmd)
- {
- struct __stat64 st;
-
- case SETACL:
- /* Open for writing required to be able to set ctime
- (even though setting the ACL is just pretended). */
- if (!get_io_handle ())
- oret = open (O_WRONLY | O_BINARY, 0);
- res = 0;
- break;
- case GETACL:
- if (!aclbufp)
- set_errno(EFAULT);
- else if (nentries < MIN_ACL_ENTRIES)
- set_errno (ENOSPC);
- else
- {
- if (!get_io_handle ())
- {
- query_open (query_read_control);
- if (!(oret = open (O_BINARY, 0)))
- return -1;
- }
- if (!fstat_by_handle (&st))
- {
- aclbufp[0].a_type = USER_OBJ;
- aclbufp[0].a_id = st.st_uid;
- aclbufp[0].a_perm = (st.st_mode & S_IRWXU) >> 6;
- aclbufp[1].a_type = GROUP_OBJ;
- aclbufp[1].a_id = st.st_gid;
- aclbufp[1].a_perm = (st.st_mode & S_IRWXG) >> 3;
- aclbufp[2].a_type = OTHER_OBJ;
- aclbufp[2].a_id = ILLEGAL_GID;
- aclbufp[2].a_perm = st.st_mode & S_IRWXO;
- aclbufp[3].a_type = CLASS_OBJ;
- aclbufp[3].a_id = ILLEGAL_GID;
- aclbufp[3].a_perm = S_IRWXU | S_IRWXG | S_IRWXO;
- res = MIN_ACL_ENTRIES;
- }
- }
- break;
- case GETACLCNT:
- res = MIN_ACL_ENTRIES;
- break;
- default:
- set_errno (EINVAL);
- break;
- }
- }
- else
- {
- if (!get_io_handle ())
- {
- query_open (cmd == SETACL ? query_write_control : query_read_control);
- if (!(oret = open (O_BINARY, 0)))
- return -1;
- }
- switch (cmd)
- {
- case SETACL:
- if (!aclsort32 (nentries, 0, aclbufp))
- res = setacl (get_io_handle (), pc, nentries, aclbufp);
- break;
- case GETACL:
- if (!aclbufp)
- set_errno(EFAULT);
- else
- res = getacl (get_io_handle (), pc, pc, nentries, aclbufp);
- break;
- case GETACLCNT:
- res = getacl (get_io_handle (), pc, pc, 0, NULL);
- break;
- default:
- set_errno (EINVAL);
- break;
- }
- }
-
- if (oret)
- close ();
-
- return res;
-}
-
-int
-fhandler_disk_file::ftruncate (_off64_t length)
-{
- int res = -1, res_bug = 0;
-
- if (length < 0 || !get_output_handle ())
- set_errno (EINVAL);
- else if (pc.isdir ())
- set_errno (EISDIR);
- else if (!(get_access () & GENERIC_WRITE))
- set_errno (EBADF);
- else
- {
- _off64_t prev_loc = lseek (0, SEEK_CUR);
- if (lseek (length, SEEK_SET) >= 0)
- {
- if (get_fs_flags (FILE_SUPPORTS_SPARSE_FILES))
- {
- _off64_t actual_length;
- DWORD size_high = 0;
- actual_length = GetFileSize (get_output_handle (), &size_high);
- actual_length += ((_off64_t) size_high) << 32;
- if (length >= actual_length + (128 * 1024))
- {
- DWORD dw;
- BOOL r = DeviceIoControl (get_output_handle (),
- FSCTL_SET_SPARSE, NULL, 0, NULL,
- 0, &dw, NULL);
- syscall_printf ("%d = DeviceIoControl(%p, FSCTL_SET_SPARSE)",
- r, get_output_handle ());
- }
- }
- else if (wincap.has_lseek_bug ())
- res_bug = write (&res, 0);
- if (!SetEndOfFile (get_output_handle ()))
- __seterrno ();
- else
- res = res_bug;
- /* restore original file pointer location */
- lseek (prev_loc, SEEK_SET);
- }
- }
- return res;
-}
-
-int
-fhandler_disk_file::link (const char *newpath)
-{
- extern bool allow_winsymlinks;
- extern suffix_info stat_suffixes[];
-
- path_conv newpc (newpath, PC_SYM_NOFOLLOW | PC_POSIX,
- transparent_exe ? stat_suffixes : NULL);
- if (newpc.error)
- {
- set_errno (newpc.case_clash ? ECASECLASH : newpc.error);
- return -1;
- }
-
- if (newpc.exists ())
- {
- syscall_printf ("file '%s' exists?", (char *) newpc);
- set_errno (EEXIST);
- return -1;
- }
-
- if (newpc[strlen (newpc) - 1] == '.')
- {
- syscall_printf ("trailing dot, bailing out");
- set_errno (EINVAL);
- return -1;
- }
-
- char new_buf[CYG_MAX_PATH + 5];
- if (!newpc.error && !newpc.case_clash)
- {
- DWORD bintype;
- int len;
-
- if (allow_winsymlinks && pc.is_lnk_special ())
- {
- /* Shortcut hack. */
- strcpy (new_buf, newpath);
- strcat (new_buf, ".lnk");
- newpath = new_buf;
- newpc.check (newpath, PC_SYM_NOFOLLOW);
- }
- else if (transparent_exe
- && !pc.isdir ()
- && GetBinaryType (pc, &bintype)
- && (len = strlen (newpc)) > 4
- && !strcasematch ((const char *) newpc + len - 4, ".exe"))
- {
- /* Executable hack. */
- strcpy (new_buf, newpath);
- strcat (new_buf, ".exe");
- newpath = new_buf;
- newpc.check (newpath, PC_SYM_NOFOLLOW);
- }
- }
-
- query_open (query_write_attributes);
- if (!open (O_BINARY, 0))
- {
- syscall_printf ("Opening file failed");
- __seterrno ();
- return -1;
- }
-
- /* Try to make hard link first on Windows NT */
- if (wincap.has_hard_links ())
- {
- if (CreateHardLinkA (newpc, pc, NULL))
- goto success;
-
- /* There are two cases to consider:
- - The FS doesn't support hard links ==> ERROR_INVALID_FUNCTION
- We copy the file.
- - CreateHardLinkA is not supported ==> ERROR_PROC_NOT_FOUND
- In that case (<= NT4) we try the old-style method.
- Any other error should be taken seriously. */
- if (GetLastError () == ERROR_INVALID_FUNCTION)
- {
- syscall_printf ("FS doesn't support hard links: Copy file");
- goto docopy;
- }
- if (GetLastError () != ERROR_PROC_NOT_FOUND)
- {
- syscall_printf ("CreateHardLinkA failed");
- __seterrno ();
- close ();
- return -1;
- }
-
- WIN32_STREAM_ID stream_id;
- LPVOID context;
- WCHAR wbuf[CYG_MAX_PATH];
- BOOL ret;
- DWORD written, write_err, path_len, size;
-
- path_len = sys_mbstowcs (wbuf, newpc, CYG_MAX_PATH) * sizeof (WCHAR);
-
- stream_id.dwStreamId = BACKUP_LINK;
- stream_id.dwStreamAttributes = 0;
- stream_id.dwStreamNameSize = 0;
- stream_id.Size.HighPart = 0;
- stream_id.Size.LowPart = path_len;
- size = sizeof (WIN32_STREAM_ID) - sizeof (WCHAR**)
- + stream_id.dwStreamNameSize;
- context = NULL;
- write_err = 0;
- /* Write WIN32_STREAM_ID */
- ret = BackupWrite (get_handle (), (LPBYTE) &stream_id, size,
- &written, FALSE, FALSE, &context);
- if (ret)
- {
- /* write the buffer containing the path */
- /* FIXME: BackupWrite sometimes traps if linkname is invalid.
- Need to handle. */
- ret = BackupWrite (get_handle (), (LPBYTE) wbuf, path_len,
- &written, FALSE, FALSE, &context);
- if (!ret)
- {
- write_err = GetLastError ();
- syscall_printf ("cannot write linkname, %E");
- }
- /* Free context */
- BackupWrite (get_handle (), NULL, 0, &written,
- TRUE, FALSE, &context);
- }
- else
- {
- write_err = GetLastError ();
- syscall_printf ("cannot write stream_id, %E");
- }
-
- if (!ret)
- {
- /* Only copy file if FS doesn't support hard links */
- if (write_err == ERROR_INVALID_FUNCTION)
- {
- syscall_printf ("FS doesn't support hard links: Copy file");
- goto docopy;
- }
-
- close ();
- __seterrno_from_win_error (write_err);
- return -1;
- }
-
- success:
- close ();
- if (!allow_winsymlinks && pc.is_lnk_special ())
- SetFileAttributes (newpc, (DWORD) pc
- | FILE_ATTRIBUTE_SYSTEM
- | FILE_ATTRIBUTE_READONLY);
- return 0;
- }
-docopy:
- /* do this with a copy */
- if (!CopyFileA (pc, newpc, 1))
- {
- __seterrno ();
- return -1;
- }
- /* Set ctime on success (copy gets it automatically). */
- if (!wincap.is_winnt ())
- has_changed (true);
- close ();
- fhandler_disk_file fh (newpc);
- fh.query_open (query_write_attributes);
- if (fh.open (O_BINARY, 0))
- fh.close ();
- return 0;
-}
-
-int
-fhandler_disk_file::utimes (const struct timeval *tvp)
-{
- return utimes_fs (tvp);
-}
-
-int
-fhandler_base::utimes_fs (const struct timeval *tvp)
-{
- FILETIME lastaccess, lastwrite;
- struct timeval tmp[2];
- bool closeit;
-
- if (get_handle ())
- closeit = false;
- else
- {
- query_open (query_write_attributes);
- if (!open_fs (O_BINARY, 0))
- {
- /* It's documented in MSDN that FILE_WRITE_ATTRIBUTES is sufficient
- to change the timestamps. Unfortunately it's not sufficient for a
- remote HPFS which requires GENERIC_WRITE, so we just retry to open
- for writing, though this fails for R/O files of course. */
- query_open (no_query);
- if (!open_fs (O_WRONLY | O_BINARY, 0))
- {
- syscall_printf ("Opening file failed");
- return -1;
- }
- }
- closeit = true;
- }
-
- if (nohandle ()) /* Directory query_open on 9x. */
- return 0;
-
- gettimeofday (&tmp[0], 0);
- if (!tvp)
- {
- tmp[1] = tmp[0];
- tvp = tmp;
- }
- timeval_to_filetime (&tvp[0], &lastaccess);
- timeval_to_filetime (&tvp[1], &lastwrite);
- debug_printf ("incoming lastaccess %08x %08x", tvp[0].tv_sec, tvp[0].tv_usec);
-
- if (is_fs_special ())
- SetFileAttributes (pc, (DWORD) pc & ~FILE_ATTRIBUTE_READONLY);
- BOOL res = SetFileTime (get_handle (), NULL, &lastaccess, &lastwrite);
- DWORD errcode = GetLastError ();
- if (is_fs_special ())
- SetFileAttributes (pc, pc);
- /* Opening a directory on a 9x share from a NT machine works(!), but
- then the SetFileTimes fails with ERROR_NOT_SUPPORTED. Oh well... */
- if (!res && errcode != ERROR_NOT_SUPPORTED)
- {
- close ();
- __seterrno_from_win_error (errcode);
- return -1;
- }
-
- if (closeit)
- close ();
- return 0;
-}
-
-fhandler_disk_file::fhandler_disk_file () :
- fhandler_base ()
-{
-}
-
-fhandler_disk_file::fhandler_disk_file (path_conv &pc) :
- fhandler_base ()
-{
- set_name (pc);
-}
-
-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;
- }
-
- /* Unfortunately NT allows to open directories for writing, but that's
- disallowed according to SUSv3. */
- if (pc.isdir () && (flags & O_ACCMODE) != O_RDONLY)
- {
- set_errno (EISDIR);
- 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 (false, NULL, get_win32_name (), mode);
-
- set_fs_flags (pc.fs_flags ());
-
-out:
- syscall_printf ("%d = fhandler_disk_file::open (%s, %p)", res,
- get_win32_name (), flags);
- return res;
-}
-
-int
-fhandler_disk_file::close ()
-{
- if (!hExeced)
- {
- /* Changing inode data requires setting ctime (only 9x). */
- if (has_changed ())
- touch_ctime ();
- }
- return close_fs ();
-}
-
-int
-fhandler_base::close_fs ()
-{
- int res = fhandler_base::close ();
- if (!res)
- user_shared->delqueue.process_queue ();
- return res;
-}
-
-ssize_t __stdcall
-fhandler_disk_file::pread (void *buf, size_t count, _off64_t offset)
-{
- ssize_t res;
- _off64_t curpos = lseek (0, SEEK_CUR);
- if (curpos < 0 || lseek (offset, SEEK_SET) < 0)
- res = -1;
- else
- {
- size_t tmp_count = count;
- read (buf, tmp_count);
- if (lseek (curpos, SEEK_SET) == 0)
- res = (ssize_t) tmp_count;
- else
- res = -1;
- }
- debug_printf ("%d = pread (%p, %d, %d)\n", res, buf, count, offset);
- return res;
-}
-
-ssize_t __stdcall
-fhandler_disk_file::pwrite (void *buf, size_t count, _off64_t offset)
-{
- int res;
- _off64_t curpos = lseek (0, SEEK_CUR);
- if (curpos < 0 || lseek (offset, SEEK_SET) < 0)
- res = curpos;
- else
- {
- res = (ssize_t) write (buf, count);
- if (lseek (curpos, SEEK_SET) < 0)
- res = -1;
- }
- debug_printf ("%d = pwrite (%p, %d, %d)\n", res, buf, count, offset);
- 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;
-}
-
-int
-fhandler_disk_file::mkdir (mode_t mode)
-{
- int res = -1;
- SECURITY_ATTRIBUTES sa = sec_none_nih;
- security_descriptor sd;
-
- if (allow_ntsec && has_acls ())
- set_security_attribute (S_IFDIR | ((mode & 07777) & ~cygheap->umask),
- &sa, sd);
-
- if (CreateDirectoryA (get_win32_name (), &sa))
- {
- if (!allow_ntsec && allow_ntea)
- set_file_attribute (false, NULL, get_win32_name (),
- S_IFDIR | ((mode & 07777) & ~cygheap->umask));
-#ifdef HIDDEN_DOT_FILES
- char *c = strrchr (real_dir.get_win32 (), '\\');
- if ((c && c[1] == '.') || *get_win32_name () == '.')
- SetFileAttributes (get_win32_name (), FILE_ATTRIBUTE_HIDDEN);
-#endif
- res = 0;
- }
- else
- __seterrno ();
-
- return res;
-}
-
-int
-fhandler_disk_file::rmdir ()
-{
- int res = -1;
-
- /* Even own directories can't be removed if R/O attribute is set. */
- if (pc.has_attribute (FILE_ATTRIBUTE_READONLY))
- SetFileAttributes (get_win32_name (),
- (DWORD) pc & ~FILE_ATTRIBUTE_READONLY);
-
- for (bool is_cwd = false; ; is_cwd = true)
- {
- DWORD err, att = 0;
- int rc = RemoveDirectory (get_win32_name ());
-
- if (isremote () && exists ())
- att = GetFileAttributes (get_win32_name ());
-
- /* Sometimes smb indicates failure when it really succeeds, so check for
- this case specifically. */
- if (rc || att == INVALID_FILE_ATTRIBUTES)
- {
- /* RemoveDirectory on a samba drive doesn't return an error if the
- directory can't be removed because it's not empty. Checking for
- existence afterwards keeps us informed about success. */
- if (!isremote () || att == INVALID_FILE_ATTRIBUTES)
- {
- res = 0;
- break;
- }
- err = ERROR_DIR_NOT_EMPTY;
- }
- else
- err = GetLastError ();
-
- /* This kludge detects if we are attempting to remove the current working
- directory. If so, we will move elsewhere to potentially allow the
- rmdir to succeed. This means that cygwin's concept of the current working
- directory != Windows concept but, hey, whaddaregonnado?
- Note that this will not cause something like the following to work:
- $ cd foo
- $ rmdir .
- since the shell will have foo "open" in the above case and so Windows will
- not allow the deletion. (Actually it does on 9X.)
- FIXME: A potential workaround for this is for cygwin apps to *never* call
- SetCurrentDirectory. */
-
- extern char windows_system_directory[];
- if (strcasematch (get_win32_name (), cygheap->cwd.win32)
- && !strcasematch (windows_system_directory, cygheap->cwd.win32)
- && !is_cwd
- && SetCurrentDirectory (windows_system_directory))
- continue;
-
- /* On 9X ERROR_ACCESS_DENIED is returned if you try to remove a
- non-empty directory. */
- if (err == ERROR_ACCESS_DENIED
- && wincap.access_denied_on_delete ())
- err = ERROR_DIR_NOT_EMPTY;
- /* ...and, that's *not* funny, when trying to remove a non-existing
- directory on a share, which is hosted by a 9x machine, the error
- code ERROR_INVALID_FUNCTION is returned. */
- else if (err == ERROR_INVALID_FUNCTION)
- err = ERROR_FILE_NOT_FOUND;
-
- __seterrno_from_win_error (err);
-
- /* Directory still exists, restore its characteristics. */
- if (pc.has_attribute (FILE_ATTRIBUTE_READONLY))
- SetFileAttributes (get_win32_name (), (DWORD) pc);
- if (is_cwd)
- SetCurrentDirectory (get_win32_name ());
- break;
- }
-
- return res;
-}
-
-/* This is the minimal number of entries which fit into the readdir cache.
- The number of bytes allocated by the cache is determined by this number,
- To tune caching, just tweak this number. To get a feeling for the size,
- the size of the readdir cache is DIR_NUM_ENTRIES * 632 + 264 bytes. */
-
-#define DIR_NUM_ENTRIES 25 /* Cache size 16064 bytes */
-
-#define DIR_BUF_SIZE (DIR_NUM_ENTRIES \
- * (sizeof (FILE_ID_BOTH_DIR_INFORMATION) \
- + 2 * CYG_MAX_PATH))
-
-struct __DIR_cache
-{
- char __name[CYG_MAX_PATH];
- ULONG __pos;
- char __cache[DIR_BUF_SIZE];
-};
-
-#define d_dirname(d) (((__DIR_cache *) (d)->__d_dirname)->__name)
-#define d_cachepos(d) (((__DIR_cache *) (d)->__d_dirname)->__pos)
-#define d_cache(d) (((__DIR_cache *) (d)->__d_dirname)->__cache)
-
-#define d_mounts(d) ((__DIR_mounts *) (d)->__d_internal)
-
-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 (wincap.is_winnt ()
- ? sizeof (struct __DIR_cache)
- : 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 (!pc.iscygdrive () && fhaccess (R_OK) != 0)
- goto free_dirent;
- else
- {
- strcpy (d_dirname (dir), get_win32_name ());
- dir->__d_dirent->__d_version = __DIRENT_VERSION;
- cygheap_fdnew fd;
-
- if (fd < 0)
- goto free_dirent;
-
- /* FindFirstFile doesn't seem to like duplicate /'s.
- The dirname is generated with trailing backslash here which
- simplifies later usage of dirname for checking symlinks.
- Appending a "*" is moved right before calling FindFirstFile.
- Since FindFirstFile is only called once, this should even be a
- teeny little bit faster. */
- len = strlen (d_dirname (dir));
- if (len && !isdirsep (d_dirname (dir)[len - 1]))
- strcpy (d_dirname (dir) + len, "\\");
- dir->__d_cookie = __DIRENT_COOKIE;
- dir->__handle = INVALID_HANDLE_VALUE;
- dir->__d_position = 0;
-
- dir->__flags = (pc.normalized_path[0] == '/' && pc.normalized_path[1] == '\0') ? dirent_isroot : 0;
- dir->__d_internal = (unsigned) new __DIR_mounts (pc.normalized_path);
- if (wincap.is_winnt ())
- {
- d_cachepos (dir) = 0;
- if (!pc.iscygdrive ())
- {
- OBJECT_ATTRIBUTES attr;
- WCHAR wpath[CYG_MAX_PATH + 10];
- UNICODE_STRING upath = {0, sizeof (wpath), wpath};
- IO_STATUS_BLOCK io;
- NTSTATUS status;
- SECURITY_ATTRIBUTES sa = sec_none;
- pc.get_nt_native_path (upath);
- InitializeObjectAttributes (&attr, &upath, OBJ_CASE_INSENSITIVE | OBJ_INHERIT,
- NULL, sa.lpSecurityDescriptor);
-
- status = NtOpenFile (&dir->__handle,
- SYNCHRONIZE | FILE_LIST_DIRECTORY,
- &attr, &io, wincap.shared (),
- FILE_SYNCHRONOUS_IO_NONALERT | FILE_DIRECTORY_FILE);
- if (!NT_SUCCESS (status))
- {
- __seterrno_from_nt_status (status);
- goto free_mounts;
- }
-
- /* FileIdBothDirectoryInformation is apparently unsupported on XP
- when accessing directories on UDF. When trying to use it so,
- NtQueryDirectoryFile returns with STATUS_ACCESS_VIOLATION. It's
- not clear if the call isn't also unsupported on other OS/FS
- combinations (say, Win2K/CDFS or so). Instead of testing in
- readdir for yet another error code, let's use
- FileIdBothDirectoryInformation only on filesystems supporting
- persistent ACLs, FileBothDirectoryInformation otherwise. */
- if (pc.hasgood_inode ())
- {
- dir->__flags |= dirent_set_d_ino;
- if (wincap.has_fileid_dirinfo () && !pc.is_samba ())
- dir->__flags |= dirent_get_d_ino;
- }
- }
- }
- /* Filling fd with `this' (aka storing this in the file descriptor table
- should only happen after it's clear that opendir doesn't fail,
- otherwise we end up cfree'ing the fhandler twice, once in opendir()
- in dir.cc, the second time on exit. Nasty, nasty... */
- fd = this;
- fd->nohandle (true);
- dir->__d_fd = fd;
- dir->__fh = this;
- res = dir;
- }
-
- syscall_printf ("%p = opendir (%s)", res, get_name ());
- return res;
-
-free_mounts:
- delete d_mounts (dir);
-free_dirent:
- free (dir->__d_dirent);
-free_dirname:
- free (dir->__d_dirname);
-free_dir:
- free (dir);
- return res;
-}
-
-int
-fhandler_disk_file::readdir_helper (DIR *dir, dirent *de, DWORD w32_err,
- DWORD attr, char *fname)
-{
- if (w32_err)
- {
- bool added = false;
- if ((de->d_ino = d_mounts (dir)->check_missing_mount (fname)))
- added = true;
- if (!added)
- return geterrno_from_win_error (w32_err);
-
- attr = 0;
- dir->__flags &= ~dirent_set_d_ino;
- }
-
- /* Check for Windows shortcut. If it's a Cygwin or U/WIN
- symlink, drop the .lnk suffix. */
- if (attr & FILE_ATTRIBUTE_READONLY)
- {
- char *c = fname;
- char *e = strchr (fname, '\0') - 4;
- if (e > c && strcasematch (e, ".lnk"))
- {
- char fbuf[CYG_MAX_PATH];
- strcpy (fbuf, d_dirname (dir));
- strcat (fbuf, c);
- path_conv fpath (fbuf, PC_SYM_NOFOLLOW);
- if (fpath.issymlink () || fpath.is_fs_special ())
- *e = '\0';
- }
- }
-
- if (pc.isencoded ())
- fnunmunge (de->d_name, fname);
- else
- strcpy (de->d_name, fname);
- if (dir->__d_position == 0 && !strcmp (fname, "."))
- dir->__flags |= dirent_saw_dot;
- else if (dir->__d_position == 1 && !strcmp (fname, ".."))
- dir->__flags |= dirent_saw_dot_dot;
- return 0;
-}
-
-static inline __ino64_t
-readdir_get_ino_by_handle (HANDLE hdl)
-{
- IO_STATUS_BLOCK io;
- FILE_INTERNAL_INFORMATION pfai;
-
- if (!NtQueryInformationFile (hdl, &io, &pfai, sizeof pfai,
- FileInternalInformation))
- return pfai.FileId.QuadPart;
- return 0;
-}
-
-__ino64_t __stdcall
-readdir_get_ino (DIR *dir, const char *path, bool dot_dot)
-{
- char fname[CYG_MAX_PATH];
- struct __stat64 st;
- HANDLE hdl;
- __ino64_t ino = 0;
-
- if (!(dir->__flags & dirent_isroot))
- {
- strcpy (fname, path);
- if (dot_dot)
- strcat (fname, (*fname && fname[strlen (fname) - 1] == '/')
- ? ".." : "/..");
- path_conv pc (fname, PC_SYM_NOFOLLOW);
- if (pc.isspecial ())
- {
- if (!lstat64 (fname, &st))
- ino = st.st_ino;
- }
- else if (!pc.hasgood_inode ())
- ino = hash_path_name (0, pc);
- else if ((hdl = CreateFile (pc, GENERIC_READ, wincap.shared (), NULL,
- OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS,
- NULL)) != INVALID_HANDLE_VALUE)
- {
- ino = readdir_get_ino_by_handle (hdl);
- CloseHandle (hdl);
- }
- }
- else
- ino = readdir_get_ino_by_handle (dir->__handle);
- return ino;
-}
-
-int
-fhandler_disk_file::readdir (DIR *dir, dirent *de)
-{
- int res = 0;
- NTSTATUS status = STATUS_SUCCESS;
- PFILE_ID_BOTH_DIR_INFORMATION buf = NULL;
- wchar_t *FileName;
- char fname[CYG_MAX_PATH];
- IO_STATUS_BLOCK io;
-
- if (!wincap.is_winnt ())
- return readdir_9x (dir, de);
-
- /* d_cachepos always refers to the next cache entry to use. If it's 0
- we must reload the cache. */
- if (d_cachepos (dir) == 0)
- {
- if ((dir->__flags & dirent_get_d_ino))
- {
- status = NtQueryDirectoryFile (dir->__handle, NULL, NULL, 0, &io,
- d_cache (dir), DIR_BUF_SIZE,
- FileIdBothDirectoryInformation,
- FALSE, NULL, dir->__d_position == 0);
- /* FileIdBothDirectoryInformation isn't supported for remote drives
- on NT4 and 2K systems, and it's also not supported on 2K at all,
- when accessing network drives on any remote OS. We just fall
- back to using a standard directory query in this case and note
- this case using the dirent_get_d_ino flag. */
- if (status == STATUS_INVALID_LEVEL
- || status == STATUS_INVALID_PARAMETER)
- dir->__flags &= ~dirent_get_d_ino;
- }
- if (!(dir->__flags & dirent_get_d_ino))
- status = NtQueryDirectoryFile (dir->__handle, NULL, NULL, 0, &io,
- d_cache (dir), DIR_BUF_SIZE,
- FileBothDirectoryInformation,
- FALSE, NULL, dir->__d_position == 0);
- }
-
- if (NT_SUCCESS (status))
- {
- buf = (PFILE_ID_BOTH_DIR_INFORMATION) (d_cache (dir) + d_cachepos (dir));
- if (buf->NextEntryOffset == 0)
- d_cachepos (dir) = 0;
- else
- d_cachepos (dir) += buf->NextEntryOffset;
- if ((dir->__flags & dirent_get_d_ino))
- {
- FileName = buf->FileName;
- if ((dir->__flags & dirent_set_d_ino))
- de->d_ino = buf->FileId.QuadPart;
- }
- else
- FileName = ((PFILE_BOTH_DIR_INFORMATION) buf)->FileName;
- sys_wcstombs (fname, CYG_MAX_PATH - 1, FileName, buf->FileNameLength / 2);
-
- de->d_ino = d_mounts (dir)->check_mount (fname, de->d_ino);
- if (de->d_ino == 0 && (dir->__flags & dirent_set_d_ino))
- {
- OBJECT_ATTRIBUTES attr;
-
- if (dir->__d_position == 0 && buf->FileNameLength == 2
- && FileName[0] == '.')
- de->d_ino = readdir_get_ino_by_handle (dir->__handle);
- else if (dir->__d_position == 1 && buf->FileNameLength == 4
- && FileName[0] == '.' && FileName[1] == '.')
- de->d_ino = readdir_get_ino (dir, pc.normalized_path, true);
- else
- {
- HANDLE hdl;
- UNICODE_STRING upath = {buf->FileNameLength, CYG_MAX_PATH * 2,
- FileName};
- InitializeObjectAttributes (&attr, &upath, OBJ_CASE_INSENSITIVE,
- dir->__handle , NULL);
- if (!NtOpenFile (&hdl, READ_CONTROL, &attr, &io,
- wincap.shared (), 0))
- {
- de->d_ino = readdir_get_ino_by_handle (hdl);
- CloseHandle (hdl);
- }
- }
- }
- }
-
- if (!(res = readdir_helper (dir, de, RtlNtStatusToDosError (status),
- buf ? buf->FileAttributes : 0, fname)))
- dir->__d_position++;
- else if (!(dir->__flags & dirent_saw_dot))
- {
- strcpy (de->d_name , ".");
- de->d_ino = readdir_get_ino_by_handle (dir->__handle);
- dir->__d_position++;
- dir->__flags |= dirent_saw_dot;
- res = 0;
- }
- else if (!(dir->__flags & dirent_saw_dot))
- {
- strcpy (de->d_name , "..");
- de->d_ino = readdir_get_ino (dir, pc.normalized_path, true);
- dir->__d_position++;
- dir->__flags |= dirent_saw_dot_dot;
- res = 0;
- }
-
- syscall_printf ("%d = readdir (%p, %p) (%s)", res, dir, &de, res ? "***" : de->d_name);
- return res;
-}
-
-int
-fhandler_disk_file::readdir_9x (DIR *dir, dirent *de)
-{
- WIN32_FIND_DATA buf;
- int res = 0;
-
- if (!dir->__handle)
- {
- res = ENMFILE;
- goto out;
- }
- DWORD lasterr;
- if (dir->__d_position != 0)
- lasterr = FindNextFileA (dir->__handle, &buf) ? 0 : GetLastError ();
- else if (dir->__handle != INVALID_HANDLE_VALUE)
- {
- res = EBADF;
- goto out;
- }
- else
- {
- int len = strlen (dir->__d_dirname);
- strcpy (dir->__d_dirname + len, "*");
- dir->__handle = FindFirstFile (dir->__d_dirname, &buf);
- dir->__d_dirname[len] = '\0';
- if (dir->__handle != INVALID_HANDLE_VALUE)
- lasterr = 0;
- else if ((lasterr = GetLastError ()) != ERROR_NO_MORE_FILES)
- {
- res = geterrno_from_win_error (lasterr);
- goto out;
- }
- }
- if (!lasterr)
- de->d_ino = d_mounts (dir)->check_mount (buf.cFileName, de->d_ino);
- if (!(res = readdir_helper (dir, de, lasterr, buf.dwFileAttributes,
- buf.cFileName)))
- dir->__d_position++;
- else
- {
- FindClose (dir->__handle);
- dir->__handle = NULL;
- }
-
-out:
- syscall_printf ("%d = readdir (%p, %p) (%s)", res, dir, &de, res ? "***" : de->d_name);
- 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 (wincap.is_winnt ())
- d_cachepos (dir) = 0;
- else if (dir->__handle != INVALID_HANDLE_VALUE)
- {
- if (dir->__handle)
- FindClose (dir->__handle);
- dir->__handle = INVALID_HANDLE_VALUE;
- }
- dir->__d_position = 0;
- d_mounts (dir)->rewind ();
-}
-
-int
-fhandler_disk_file::closedir (DIR *dir)
-{
- int res = 0;
- delete d_mounts (dir);
- if (!dir->__handle)
- /* ignore */;
- else if (dir->__handle == INVALID_HANDLE_VALUE)
- {
- set_errno (EBADF);
- res = -1;
- }
- else
- {
- BOOL winres;
- if (wincap.is_winnt ())
- winres = CloseHandle (dir->__handle);
- else
- winres = FindClose (dir->__handle);
- if (!winres)
- {
- __seterrno ();
- res = -1;
- }
- }
- syscall_printf ("%d = closedir (%p)", res, dir);
- return res;
-}
-
-fhandler_cygdrive::fhandler_cygdrive () :
- fhandler_disk_file (), ndrives (0), pdrive (NULL)
-{
-}
-
-int
-fhandler_cygdrive::open (int flags, mode_t mode)
-{
- if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
- {
- set_errno (EEXIST);
- return 0;
- }
- if (flags & O_WRONLY)
- {
- set_errno (EISDIR);
- return 0;
- }
- flags |= O_DIROPEN;
- set_flags (flags);
- nohandle (true);
- return 1;
-}
-
-int
-fhandler_cygdrive::close ()
-{
- return 0;
-}
-
-#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)
-{
- buf->st_mode = S_IFDIR | 0555;
- buf->st_ino = 2;
- buf->st_nlink = 1;
- return 0;
-}
-
-DIR *
-fhandler_cygdrive::opendir ()
-{
- DIR *dir;
-
- dir = fhandler_disk_file::opendir ();
- if (dir && !ndrives)
- set_drives ();
-
- return dir;
-}
-
-int
-fhandler_cygdrive::readdir (DIR *dir, dirent *de)
-{
- while (true)
- {
- if (!pdrive || !*pdrive)
- {
- if (!(dir->__flags & dirent_saw_dot))
- {
- de->d_name[0] = '.';
- de->d_name[1] = '\0';
- de->d_ino = 2;
- }
- return ENMFILE;
- }
- if (GetFileAttributes (pdrive) != INVALID_FILE_ATTRIBUTES)
- break;
- pdrive = strchr (pdrive, '\0') + 1;
- }
- *de->d_name = cyg_tolower (*pdrive);
- de->d_name[1] = '\0';
- de->d_ino = readdir_get_ino (dir, pdrive, false);
- dir->__d_position++;
- pdrive = strchr (pdrive, '\0') + 1;
- syscall_printf ("%p = readdir (%p) (%s)", &de, dir, de->d_name);
- return 0;
-}
-
-void
-fhandler_cygdrive::rewinddir (DIR *dir)
-{
- pdrive = get_win32_name ();
- dir->__d_position = 0;
-}
-
-int
-fhandler_cygdrive::closedir (DIR *dir)
-{
- pdrive = get_win32_name ();
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 23:10:57 +0300