diff options
Diffstat (limited to 'winsup/cygwin/fhandler_netdrive.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_netdrive.cc | 271 |
1 files changed, 0 insertions, 271 deletions
diff --git a/winsup/cygwin/fhandler_netdrive.cc b/winsup/cygwin/fhandler_netdrive.cc deleted file mode 100644 index 4665d2893..000000000 --- a/winsup/cygwin/fhandler_netdrive.cc +++ /dev/null @@ -1,271 +0,0 @@ -/* fhandler_netdrive.cc: fhandler for // and //MACHINE handling - - Copyright 2005 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 "cygerrno.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" -#include "dtable.h" -#include "cygheap.h" -#include "sigproc.h" -#include "cygthread.h" -#include <assert.h> -#include <winnetwk.h> - -#include <dirent.h> - -enum - { - GET_RESOURCE_INFO = 0, - 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; - }; - -static DWORD WINAPI -thread_netdrive (void *arg) -{ - netdriveinf *ndi = (netdriveinf *) arg; - LPTSTR dummy = NULL; - LPNETRESOURCE nro, nro2; - DWORD size; - HANDLE enumhdl; - - ReleaseSemaphore (ndi->sem, 1, NULL); - switch (ndi->what) - { - case GET_RESOURCE_INFO: - nro = (LPNETRESOURCE) alloca (size = 4096); - ndi->ret = WNetGetResourceInformation ((LPNETRESOURCE) ndi->in, - nro, &size, &dummy); - break; - case GET_RESOURCE_OPENENUM: - case GET_RESOURCE_OPENENUMTOP: - nro = (LPNETRESOURCE) alloca (size = 4096); - ndi->ret = WNetGetResourceInformation ((LPNETRESOURCE) ndi->in, - nro, &size, &dummy); - if (ndi->ret != NO_ERROR) - break; - if (ndi->what == GET_RESOURCE_OPENENUMTOP) - { - nro2 = nro; - nro = (LPNETRESOURCE) alloca (size = 4096); - ndi->ret = WNetGetResourceParent (nro2, nro, &size); - if (ndi->ret != NO_ERROR) - break; - } - ndi->ret = WNetOpenEnum (RESOURCE_GLOBALNET, RESOURCETYPE_DISK, 0, nro, - &enumhdl); - if (ndi->ret == NO_ERROR) - *(HANDLE *) ndi->out = enumhdl; - break; - case GET_RESOURCE_ENUM: - ndi->ret = WNetEnumResource ((HANDLE) ndi->in, (size = 1, &size), - (LPNETRESOURCE) ndi->out, &ndi->outsize); - 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, (LPVOID) &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'; - - NETRESOURCE nr = {0}; - nr.dwScope = RESOURCE_GLOBALNET; - nr.dwType = RESOURCETYPE_DISK; - nr.lpLocalName = NULL; - nr.lpRemoteName = namebuf; - DWORD ret = create_thread_and_wait (GET_RESOURCE_INFO, &nr, NULL, 0, - "WNetGetResourceInformation"); - if (ret != ERROR_MORE_DATA && ret != NO_ERROR) - 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; - - return 0; -} - -int -fhandler_netdrive::readdir (DIR *dir, dirent *de) -{ - DWORD size; - NETRESOURCE *nro; - DWORD ret; - int res; - - if (!dir->__d_position) - { - size_t len = strlen (get_name ()); - char *namebuf; - NETRESOURCE nr = { 0 }; - - if (len == 2) /* // */ - { - namebuf = (char *) alloca (MAX_COMPUTERNAME_LENGTH + 3); - strcpy (namebuf, "\\\\"); - size = MAX_COMPUTERNAME_LENGTH + 1; - if (!GetComputerName (namebuf + 2, &size)) - { - res = geterrno_from_win_error (); - goto out; - } - } - else - { - 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; - nro = (NETRESOURCE *) alloca (4096); - ret = create_thread_and_wait (len == 2 ? GET_RESOURCE_OPENENUMTOP - : GET_RESOURCE_OPENENUM, - &nr, &dir->__handle, 0, "WNetOpenEnum"); - if (ret != NO_ERROR) - { - dir->__handle = INVALID_HANDLE_VALUE; - res = geterrno_from_win_error (ret); - goto out; - } - } - 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); - 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) - WNetCloseEnum (dir->__handle); - 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; -} - |