diff options
Diffstat (limited to 'winsup/cygwin/fhandler_virtual.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_virtual.cc | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/winsup/cygwin/fhandler_virtual.cc b/winsup/cygwin/fhandler_virtual.cc deleted file mode 100644 index 414d5c83f..000000000 --- a/winsup/cygwin/fhandler_virtual.cc +++ /dev/null @@ -1,263 +0,0 @@ -/* fhandler_virtual.cc: base fhandler class for virtual filesystems - - Copyright 2002, 2003, 2004, 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 <sys/acl.h> -#include "cygerrno.h" -#include "security.h" -#include "path.h" -#include "fhandler.h" -#include "dtable.h" -#include "shared_info.h" -#include "cygheap.h" -#include <assert.h> - -#include <dirent.h> - -fhandler_virtual::fhandler_virtual (): - fhandler_base (), filebuf (NULL), bufalloc ((size_t) -1), - fileid (-1) -{ -} - -fhandler_virtual::~fhandler_virtual () -{ - if (filebuf) - { - cfree (filebuf); - filebuf = NULL; - } -} - -void -fhandler_virtual::fixup_after_exec () -{ -} - -DIR * -fhandler_virtual::opendir () -{ - DIR *dir; - DIR *res = NULL; - size_t len; - - if (exists () <= 0) - set_errno (ENOTDIR); - else if ((len = strlen (get_name ())) > 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) - { - free (dir); - set_errno (ENOMEM); - } - else if ((dir->__d_dirent = - (struct dirent *) malloc (sizeof (struct dirent))) == NULL) - { - free (dir); - set_errno (ENOMEM); - } - else - { - strcpy (dir->__d_dirname, get_name ()); - dir->__d_dirent->d_version = __DIRENT_VERSION; - cygheap_fdnew fd; - if (fd >= 0) - { - fd = this; - fd->nohandle (true); - dir->__d_dirent->d_fd = fd; - dir->__fh = this; - dir->__d_cookie = __DIRENT_COOKIE; - dir->__handle = INVALID_HANDLE_VALUE; - dir->__d_position = 0; - dir->__d_dirhash = get_namehash (); - dir->__flags = dirent_saw_dot | dirent_saw_dot_dot; - res = dir; - res->__flags = 0; - } - } - - syscall_printf ("%p = opendir (%s)", res, get_name ()); - return res; -} - -_off64_t fhandler_virtual::telldir (DIR * dir) -{ - return dir->__d_position; -} - -void -fhandler_virtual::seekdir (DIR * dir, _off64_t loc) -{ - dir->__flags |= dirent_saw_dot | dirent_saw_dot_dot; - dir->__d_position = loc; -} - -void -fhandler_virtual::rewinddir (DIR * dir) -{ - dir->__d_position = 0; - dir->__flags |= dirent_saw_dot | dirent_saw_dot_dot; -} - -int -fhandler_virtual::closedir (DIR * dir) -{ - return 0; -} - -_off64_t -fhandler_virtual::lseek (_off64_t offset, int whence) -{ - /* - * On Linux, when you lseek within a /proc file, - * the contents of the file are updated. - */ - if (!fill_filebuf ()) - return (_off64_t) -1; - switch (whence) - { - case SEEK_SET: - position = offset; - break; - case SEEK_CUR: - position += offset; - break; - case SEEK_END: - position = filesize + offset; - break; - default: - set_errno (EINVAL); - return (_off64_t) -1; - } - return position; -} - -int -fhandler_virtual::dup (fhandler_base * child) -{ - int ret = fhandler_base::dup (child); - - if (!ret) - { - fhandler_virtual *fhproc_child = (fhandler_virtual *) child; - fhproc_child->filebuf = (char *) cmalloc (HEAP_BUF, filesize); - fhproc_child->bufalloc = fhproc_child->filesize = filesize; - fhproc_child->position = position; - memcpy (fhproc_child->filebuf, filebuf, filesize); - fhproc_child->set_flags (get_flags ()); - } - return ret; -} - -int -fhandler_virtual::close () -{ - if (!hExeced) - { - if (filebuf) - { - cfree (filebuf); - filebuf = NULL; - } - bufalloc = (size_t) -1; - } - return 0; -} - -void -fhandler_virtual::read (void *ptr, size_t& len) -{ - if (len == 0) - return; - if (openflags & O_DIROPEN) - { - set_errno (EISDIR); - len = (size_t) -1; - return; - } - if (!filebuf) - { - len = (size_t) 0; - return; - } - if ((ssize_t) len > filesize - position) - len = (size_t) (filesize - position); - if ((ssize_t) len < 0) - len = 0; - else - memcpy (ptr, filebuf + position, len); - position += len; -} - -int -fhandler_virtual::write (const void *ptr, size_t len) -{ - set_errno (EACCES); - return -1; -} - -/* low-level open for all proc files */ -int -fhandler_virtual::open (int flags, mode_t mode) -{ - rbinary (true); - wbinary (true); - - set_flags ((flags & ~O_TEXT) | O_BINARY); - - return 1; -} - -int -fhandler_virtual::exists () -{ - return 0; -} - -bool -fhandler_virtual::fill_filebuf () -{ - return true; -} - -int -fhandler_virtual::fchmod (mode_t mode) -{ - /* Same as on Linux. */ - set_errno (EPERM); - return -1; -} - -int -fhandler_virtual::fchown (__uid32_t uid, __gid32_t gid) -{ - /* Same as on Linux. */ - set_errno (EPERM); - return -1; -} - -int -fhandler_virtual::facl (int cmd, int nentries, __aclent32_t *aclbufp) -{ - int res = fhandler_base::facl (cmd, nentries, aclbufp); - if (res >= 0 && cmd == GETACL) - { - aclbufp[0].a_perm = (S_IRUSR | (pc.isdir () ? S_IXUSR : 0)) >> 6; - aclbufp[1].a_perm = (S_IRGRP | (pc.isdir () ? S_IXGRP : 0)) >> 3; - aclbufp[2].a_perm = S_IROTH | (pc.isdir () ? S_IXOTH : 0); - } - return res; -} |