diff options
Diffstat (limited to 'winsup/cygwin/fhandler_raw.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_raw.cc | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/winsup/cygwin/fhandler_raw.cc b/winsup/cygwin/fhandler_raw.cc deleted file mode 100644 index cb8829559..000000000 --- a/winsup/cygwin/fhandler_raw.cc +++ /dev/null @@ -1,206 +0,0 @@ -/* fhandler_raw.cc. See fhandler.h for a description of the fhandler classes. - - Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2011, - 2012 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 <cygwin/rdevio.h> -#include <sys/mtio.h> -#include <sys/param.h> -#include "cygerrno.h" -#include "path.h" -#include "fhandler.h" - -/**********************************************************************/ -/* fhandler_dev_raw */ - -fhandler_dev_raw::fhandler_dev_raw () - : fhandler_base (), - status () -{ - need_fork_fixup (true); -} - -fhandler_dev_raw::~fhandler_dev_raw () -{ - if (devbufsiz > 1L) - delete [] devbufalloc; -} - -int __stdcall -fhandler_dev_raw::fstat (struct __stat64 *buf) -{ - debug_printf ("here"); - - fhandler_base::fstat (buf); - if (is_auto_device ()) - { - if (get_major () == DEV_TAPE_MAJOR) - buf->st_mode = S_IFCHR | STD_RBITS | STD_WBITS | S_IWGRP | S_IWOTH; - else - buf->st_mode = S_IFBLK | STD_RBITS | STD_WBITS | S_IWGRP | S_IWOTH; - - buf->st_uid = geteuid32 (); - buf->st_gid = getegid32 (); - buf->st_nlink = 1; - buf->st_blksize = PREFERRED_IO_BLKSIZE; - time_as_timestruc_t (&buf->st_ctim); - buf->st_atim = buf->st_mtim = buf->st_birthtim = buf->st_ctim; - } - return 0; -} - -int -fhandler_dev_raw::open (int flags, mode_t) -{ - /* Check for illegal flags. */ - if (get_major () != DEV_TAPE_MAJOR && (flags & O_APPEND)) - { - set_errno (EINVAL); - return 0; - } - - /* Always open a raw device existing and binary. */ - flags &= ~(O_CREAT | O_TRUNC); - flags |= O_BINARY; - - /* Write-only doesn't work well with raw devices */ - if ((flags & O_ACCMODE) == O_WRONLY) - flags = ((flags & ~O_WRONLY) | O_RDWR); - - int res = fhandler_base::open (flags, 0); - - return res; -} - -int -fhandler_dev_raw::dup (fhandler_base *child, int flags) -{ - int ret = fhandler_base::dup (child, flags); - - if (!ret) - { - fhandler_dev_raw *fhc = (fhandler_dev_raw *) child; - - if (devbufsiz > 1L) - { - /* Create sector-aligned buffer */ - fhc->devbufalloc = new char [devbufsiz + devbufalign]; - fhc->devbuf = (char *) roundup2 ((uintptr_t) fhc->devbufalloc, - devbufalign); - } - fhc->devbufstart = 0; - fhc->devbufend = 0; - fhc->lastblk_to_read (false); - } - return ret; -} - -void -fhandler_dev_raw::fixup_after_fork (HANDLE) -{ - devbufstart = 0; - devbufend = 0; - lastblk_to_read (false); -} - -void -fhandler_dev_raw::fixup_after_exec () -{ - if (!close_on_exec ()) - { - if (devbufsiz > 1L) - { - /* Create sector-aligned buffer */ - devbufalloc = new char [devbufsiz + devbufalign]; - devbuf = (char *) roundup2 ((uintptr_t) devbufalloc, devbufalign); - } - devbufstart = 0; - devbufend = 0; - lastblk_to_read (false); - } -} - -int -fhandler_dev_raw::ioctl (unsigned int cmd, void *buf) -{ - int ret = NO_ERROR; - - if (cmd == RDIOCDOP) - { - struct rdop *op = (struct rdop *) buf; - - if (!op) - ret = ERROR_INVALID_PARAMETER; - else - switch (op->rd_op) - { - case RDSETBLK: - if (get_major () == DEV_TAPE_MAJOR) - { - struct mtop mop; - - mop.mt_op = MTSETBLK; - mop.mt_count = op->rd_parm; - ret = ioctl (MTIOCTOP, &mop); - } - else if ((op->rd_parm <= 1 && get_major () != DEV_TAPE_MAJOR) - || (op->rd_parm > 1 && (op->rd_parm % devbufalign)) - || (get_flags () & O_DIRECT)) - /* The conditions for a valid parameter are: - - The new size is either 0 or 1, both indicating unbuffered - I/O, and the device is a tape device. - - Or, the new buffersize must be a multiple of the - required buffer alignment. - - In the O_DIRECT case, the whole request is invalid. */ - ret = ERROR_INVALID_PARAMETER; - else if (!devbuf || op->rd_parm != devbufsiz) - { - char *buf = NULL; - _off64_t curpos = lseek (0, SEEK_CUR); - - if (op->rd_parm > 1L) - buf = new char [op->rd_parm + devbufalign]; - - if (devbufsiz > 1L) - delete [] devbufalloc; - - devbufalloc = buf; - devbuf = (char *) roundup2 ((uintptr_t) buf, devbufalign); - devbufsiz = op->rd_parm ?: 1L; - devbufstart = devbufend = 0; - lseek (curpos, SEEK_SET); - } - break; - default: - break; - } - } - else if (cmd == RDIOCGET) - { - struct rdget *get = (struct rdget *) buf; - - if (!get) - ret = ERROR_INVALID_PARAMETER; - else - get->bufsiz = devbufsiz; - } - else - return fhandler_base::ioctl (cmd, buf); - - if (ret != NO_ERROR) - { - SetLastError (ret); - __seterrno (); - return -1; - } - return 0; -} |