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Diffstat (limited to 'winsup/cygwin/fhandler_netdrive.cc')
-rw-r--r--winsup/cygwin/fhandler_netdrive.cc330
1 files changed, 0 insertions, 330 deletions
diff --git a/winsup/cygwin/fhandler_netdrive.cc b/winsup/cygwin/fhandler_netdrive.cc
deleted file mode 100644
index 3de2278ef..000000000
--- a/winsup/cygwin/fhandler_netdrive.cc
+++ /dev/null
@@ -1,330 +0,0 @@
-/* fhandler_netdrive.cc: fhandler for // and //MACHINE handling
-
- Copyright 2005, 2006, 2007, 2008 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 <stdlib.h>
-#include "cygerrno.h"
-#include "security.h"
-#include "path.h"
-#include "fhandler.h"
-#include "dtable.h"
-#include "cygheap.h"
-#include "cygthread.h"
-#include <winnetwk.h>
-
-#include <dirent.h>
-
-enum
- {
- GET_RESOURCE_OPENENUM = 1,
- GET_RESOURCE_OPENENUMTOP = 2,
- GET_RESOURCE_ENUM = 3
- };
-
-struct netdriveinf
- {
- int what;
- int ret;
- PVOID in;
- PVOID out;
- DWORD outsize;
- HANDLE sem;
- };
-
-struct net_hdls
- {
- HANDLE net;
- HANDLE dom;
- };
-
-static DWORD WINAPI
-thread_netdrive (void *arg)
-{
- netdriveinf *ndi = (netdriveinf *) arg;
- char provider[256], *dummy = NULL;
- LPNETRESOURCE nro;
- DWORD cnt, size;
- struct net_hdls *nh;
-
- ReleaseSemaphore (ndi->sem, 1, NULL);
- switch (ndi->what)
- {
- case GET_RESOURCE_OPENENUMTOP:
- nro = (LPNETRESOURCE) alloca (size = 4096);
- nh = (struct net_hdls *) ndi->out;
- ndi->ret = WNetGetProviderName (WNNC_NET_LANMAN, provider,
- (size = 256, &size));
- if (ndi->ret != NO_ERROR)
- break;
- memset (nro, 0, sizeof *nro);
- nro->dwScope = RESOURCE_GLOBALNET;
- nro->dwType = RESOURCETYPE_ANY;
- nro->dwDisplayType = RESOURCEDISPLAYTYPE_GROUP;
- nro->dwUsage = RESOURCEUSAGE_RESERVED | RESOURCEUSAGE_CONTAINER;
- nro->lpRemoteName = provider;
- nro->lpProvider = provider;
- ndi->ret = WNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
- RESOURCEUSAGE_ALL, nro, &nh->net);
- if (ndi->ret != NO_ERROR)
- break;
- while ((ndi->ret = WNetEnumResource (nh->net, (cnt = 1, &cnt), nro,
- (size = 4096, &size))) == NO_ERROR)
- {
- ndi->ret = WNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
- RESOURCEUSAGE_ALL, nro, &nh->dom);
- if (ndi->ret == NO_ERROR)
- break;
- }
- break;
- case GET_RESOURCE_OPENENUM:
- nro = (LPNETRESOURCE) alloca (size = 4096);
- nh = (struct net_hdls *) ndi->out;
- ndi->ret = WNetGetProviderName (WNNC_NET_LANMAN, provider,
- (size = 256, &size));
- if (ndi->ret != NO_ERROR)
- break;
- ((LPNETRESOURCE) ndi->in)->lpProvider = provider;
- ndi->ret = WNetGetResourceInformation ((LPNETRESOURCE) ndi->in,
- nro, &size, &dummy);
- if (ndi->ret != NO_ERROR)
- break;
- ndi->ret = WNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
- RESOURCEUSAGE_ALL, nro, &nh->dom);
- break;
- case GET_RESOURCE_ENUM:
- nh = (struct net_hdls *) ndi->in;
- if (!nh->dom)
- {
- ndi->ret = ERROR_NO_MORE_ITEMS;
- break;
- }
- while ((ndi->ret = WNetEnumResource (nh->dom, (cnt = 1, &cnt),
- (LPNETRESOURCE) ndi->out,
- &ndi->outsize)) != NO_ERROR
- && nh->net)
- {
- WNetCloseEnum (nh->dom);
- nh->dom = NULL;
- nro = (LPNETRESOURCE) alloca (size = 4096);
- while ((ndi->ret = WNetEnumResource (nh->net, (cnt = 1, &cnt), nro,
- (size = 4096, &size))) == NO_ERROR)
- {
- ndi->ret = WNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK,
- RESOURCEUSAGE_ALL, nro, &nh->dom);
- if (ndi->ret == NO_ERROR)
- break;
- }
- if (ndi->ret != NO_ERROR)
- break;
- }
- break;
- }
- ReleaseSemaphore (ndi->sem, 1, NULL);
- return 0;
-}
-
-static DWORD
-create_thread_and_wait (int what, PVOID in, PVOID out, DWORD outsize,
- const char *name)
-{
- netdriveinf ndi = { what, 0, in, out, outsize,
- CreateSemaphore (&sec_none_nih, 0, 2, NULL) };
- cygthread *thr = new cygthread (thread_netdrive, 0, &ndi, name);
- if (thr->detach (ndi.sem))
- ndi.ret = ERROR_OPERATION_ABORTED;
- CloseHandle (ndi.sem);
- return ndi.ret;
-}
-
-/* Returns 0 if path doesn't exist, >0 if path is a directory,
- -1 if path is a file, -2 if it's a symlink. */
-int
-fhandler_netdrive::exists ()
-{
- char *to;
- const char *from;
- size_t len = strlen (get_name ());
- if (len == 2)
- return 1;
- char namebuf[len + 1];
- for (to = namebuf, from = get_name (); *from; to++, from++)
- *to = (*from == '/') ? '\\' : *from;
- *to = '\0';
-
- struct net_hdls nh = { NULL, NULL };
- NETRESOURCE nr = {0};
- nr.dwType = RESOURCETYPE_DISK;
- nr.lpRemoteName = namebuf;
- DWORD ret = create_thread_and_wait (GET_RESOURCE_OPENENUM,
- &nr, &nh, 0, "WNetOpenEnum");
- if (ret != NO_ERROR)
- {
- if (nh.dom)
- WNetCloseEnum (nh.dom);
- if (nh.net)
- WNetCloseEnum (nh.net);
- return 0;
- }
- return 1;
-}
-
-fhandler_netdrive::fhandler_netdrive ():
- fhandler_virtual ()
-{
-}
-
-int
-fhandler_netdrive::fstat (struct __stat64 *buf)
-{
- const char *path = get_name ();
- debug_printf ("fstat (%s)", path);
-
- fhandler_base::fstat (buf);
-
- buf->st_mode = S_IFDIR | STD_RBITS | STD_XBITS;
- buf->st_ino = get_ino ();
-
- return 0;
-}
-
-int
-fhandler_netdrive::readdir (DIR *dir, dirent *de)
-{
- NETRESOURCE *nro;
- DWORD ret;
- int res;
-
- if (!dir->__d_position)
- {
- size_t len = strlen (get_name ());
- char *namebuf = NULL;
- NETRESOURCE nr = { 0 };
- struct net_hdls *nh;
-
- if (len != 2) /* // */
- {
- const char *from;
- char *to;
- namebuf = (char *) alloca (len + 1);
- for (to = namebuf, from = get_name (); *from; to++, from++)
- *to = (*from == '/') ? '\\' : *from;
- *to = '\0';
- }
-
- nr.lpRemoteName = namebuf;
- nr.dwType = RESOURCETYPE_DISK;
- nh = (struct net_hdls *) ccalloc (HEAP_FHANDLER, 1, sizeof *nh);
- ret = create_thread_and_wait (len == 2 ? GET_RESOURCE_OPENENUMTOP
- : GET_RESOURCE_OPENENUM,
- &nr, nh, 0, "WNetOpenEnum");
- if (ret != NO_ERROR)
- {
- dir->__handle = INVALID_HANDLE_VALUE;
- res = geterrno_from_win_error (ret);
- goto out;
- }
- dir->__handle = (HANDLE) nh;
- }
- ret = create_thread_and_wait (GET_RESOURCE_ENUM, dir->__handle,
- nro = (LPNETRESOURCE) alloca (16384),
- 16384, "WnetEnumResource");
- if (ret != NO_ERROR)
- res = geterrno_from_win_error (ret);
- else
- {
- dir->__d_position++;
- char *bs = strrchr (nro->lpRemoteName, '\\');
- strcpy (de->d_name, bs ? bs + 1 : nro->lpRemoteName);
- if (strlen (get_name ()) == 2)
- {
- strlwr (de->d_name);
- de->d_ino = hash_path_name (get_ino (), de->d_name);
- }
- else
- {
- de->d_ino = readdir_get_ino (nro->lpRemoteName, false);
- /* We can't trust remote inode numbers of only 32 bit. That means,
- all remote inode numbers when running under NT4, as well as
- remote NT4 NTFS, as well as shares of Samba version < 3.0. */
- if (de->d_ino <= UINT_MAX)
- de->d_ino = hash_path_name (0, nro->lpRemoteName);
- }
-
- res = 0;
- }
-out:
- syscall_printf ("%d = readdir (%p, %p)", res, dir, de);
- return res;
-}
-
-void
-fhandler_netdrive::seekdir (DIR *dir, _off64_t pos)
-{
- rewinddir (dir);
- if (pos < 0)
- return;
- while (dir->__d_position < pos)
- if (!readdir (dir, dir->__d_dirent))
- break;
-}
-
-void
-fhandler_netdrive::rewinddir (DIR *dir)
-{
- if (dir->__handle != INVALID_HANDLE_VALUE)
- {
- struct net_hdls *nh = (struct net_hdls *) dir->__handle;
- if (nh->dom)
- WNetCloseEnum (nh->dom);
- if (nh->net)
- WNetCloseEnum (nh->net);
- cfree (nh);
- }
- dir->__handle = INVALID_HANDLE_VALUE;
- return fhandler_virtual::rewinddir (dir);
-}
-
-int
-fhandler_netdrive::closedir (DIR *dir)
-{
- rewinddir (dir);
- return fhandler_virtual::closedir (dir);
-}
-
-int
-fhandler_netdrive::open (int flags, mode_t mode)
-{
- int res = fhandler_virtual::open (flags, mode);
- if (!res)
- goto out;
-
- nohandle (true);
-
- if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))
- {
- set_errno (EEXIST);
- res = 0;
- goto out;
- }
- else if (flags & O_WRONLY)
- {
- set_errno (EISDIR);
- res = 0;
- goto out;
- }
-
- res = 1;
- set_flags ((flags & ~O_TEXT) | O_BINARY | O_DIROPEN);
- set_open_status ();
-out:
- syscall_printf ("%d = fhandler_netdrive::open (%p, %d)", res, flags, mode);
- return res;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 00:05:53 +0300