+++ /dev/null
-/*
- * Amanda, The Advanced Maryland Automatic Network Disk Archiver
- * Copyright (c) 1991-1998 University of Maryland at College Park
- * All Rights Reserved.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of U.M. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. U.M. makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
- * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: James da Silva, Systems Design and Analysis Group
- * Computer Science Department
- * University of Maryland at College Park
- */
-
-/* NOTE: this driver is *deprecated* and should not be used. See the Device API
- * in device-src/ for the new implementation.
- */
-
-/*
- * $Id: output-tape.c,v 1.18 2006/08/22 14:19:39 martinea Exp $
- *
- * tapeio.c virtual tape interface for normal tape drives.
- */
-
-#ifdef NO_AMANDA
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#else
-#include "amanda.h"
-#include "tapeio.h"
-#endif
-
-#include "output-tape.h"
-
-#ifndef NO_AMANDA
-#include "fileheader.h"
-#endif
-
-#ifndef R_OK
-#define R_OK 4
-#define W_OK 2
-#endif
-
-/*
-=======================================================================
-** Here are the ioctl() interface routines, which are #ifdef-ed
-** heavily by platform.
-=======================================================================
-*/
-
-#if defined(HAVE_BROKEN_FSF) /* { */
-/*
- * tape_tapefd_fsf -- handle systems that have a broken fsf operation
- * and cannot do an fsf operation unless they are positioned at a tape
- * mark (or BOT). Sheesh! This shows up in amrestore as I/O errors
- * when skipping.
- */
-
-int
-tape_tapefd_fsf(
- int fd,
- off_t count)
-{
- size_t buflen;
- char *buffer = NULL;
- int len = 0;
-
- buflen = getconf_readblocksize() * 1024;
- buffer = alloc(buflen);
-
- while(--count >= 0) {
- while((len = tapefd_read(fd, buffer, buflen)) > 0) {}
- if(len < 0) {
- break;
- }
- }
- amfree(buffer);
- return len;
-}
-#endif /* } */
-
-#ifdef WANT_TAPE_UWARE /* { */
-
-#include <sys/tape.h>
-
-/*
- * Rewind a tape to the beginning.
- */
-int
-tape_tapefd_rewind(
- int fd)
-{
- int st;
-
- return ioctl(fd, T_RWD, &st);
-}
-
-/*
- * Rewind and unload a tape.
- */
-int
-tape_tapefd_unload(
- int fd)
-{
- int st;
-
- return ioctl(fd, T_OFFL, &st);
-}
-
-#if !defined(HAVE_BROKEN_FSF)
-/*
- * Forward space the tape device count files.
- */
-int
-tape_tapefd_fsf(
- int fd,
- off_t count)
-{
- int st;
- int status;
-
- while (--count >= 0) {
- if ((status = ioctl(fd, T_SFF, &st)) != 0) {
- break;
- }
- }
-
- return status;
-}
-#endif
-
-/*
- * Write some number of end of file marks (a.k.a. tape marks).
- */
-int
-tape_tapefd_weof(
- int fd,
- off_t count)
-{
- int st;
- int status;
-
- while (--count >= (off_t)0) {
- if ((status = ioctl(fd, T_WRFILEM, &st)) != 0) {
- break;
- }
- }
-
- return status;
-}
-
-#else /* }{ */
-#ifdef WANT_TAPE_AIX /* { */
-
-#include <sys/tape.h>
-
-/*
- * Rewind a tape to the beginning.
- */
-int
-tape_tapefd_rewind(
- int fd)
-{
- struct stop st;
-
- st.st_op = STREW;
- st.st_count = 1;
-
- return ioctl(fd, STIOCTOP, &st);
-}
-
-/*
- * Rewind and unload a tape.
- */
-int
-tape_tapefd_unload(
- int fd)
-{
- struct stop st;
-
- st.st_op = STOFFL;
- st.st_count = 1;
-
- return ioctl(fd, STIOCTOP, &st);
-}
-
-#if !defined(HAVE_BROKEN_FSF)
-/*
- * Forward space the tape device count files.
- */
-int
-tape_tapefd_fsf(
- int fd,
- off_t count)
-{
- struct stop st;
-
- if ((count > (off_t)INT_MAX) || (count < (off_t)INT_MIN)) {
-#ifdef EOVERFLOW
- errno = EOVERFLOW;
-#else
- errno = EINVAL;
-#endif
- return -1;
- }
-
- st.st_op = STFSF;
- st.st_count = (int)count;
-
- return ioctl(fd, STIOCTOP, &st);
-}
-#endif
-
-/*
- * Write some number of end of file marks (a.k.a. tape marks).
- */
-int
-tape_tapefd_weof(
- int fd,
- off_t count)
-{
- struct stop st;
-
- if ((count > (off_t)INT_MAX) || (count < (off_t)INT_MIN)) {
-#ifdef EOVERFLOW
- errno = EOVERFLOW;
-#else
- errno = EINVAL;
-#endif
- return -1;
- }
-
- st.st_op = STWEOF;
- st.st_count = (int)count;
-
- return ioctl(fd, STIOCTOP, &st);
-}
-
-#else /* WANT_TAPE_AIX */ /* }{ */
-#ifdef WANT_TAPE_XENIX /* { */
-
-#include <sys/tape.h>
-
-/*
- * Rewind a tape to the beginning.
- */
-int
-tape_tapefd_rewind(
- int fd)
-{
- int st;
-
- return ioctl(fd, MT_REWIND, &st);
-}
-
-/*
- * Rewind and unload a tape.
- */
-int
-tape_tapefd_unload(
- int fd)
-{
- int st;
- int f;
-
-#ifdef MT_OFFLINE
- f = MT_OFFLINE;
-#else
-#ifdef MT_UNLOAD
- f = MT_UNLOAD;
-#else
- f = syntax error;
-#endif
-#endif
- return ioctl(fd, f, &st);
-}
-
-#if !defined(HAVE_BROKEN_FSF)
-/*
- * Forward space the tape device count files.
- */
-int
-tape_tapefd_fsf(
- int fd,
- off_t count)
-{
- int st;
- int status;
-
- while (--count >= 0) {
- if ((status = ioctl(fd, MT_RFM, &st)) != 0) {
- break;
- }
- }
-
- return status;
-}
-#endif
-
-/*
- * Write some number of end of file marks (a.k.a. tape marks).
- */
-int
-tape_tapefd_weof(
- int fd,
- off_t count)
-{
- int st;
- int c;
- int status;
-
- while (--count >= 0) {
- if ((status = ioctl(fd, MT_WFM, &st)) != 0) {
- break;
- }
- }
-
- return status;
-}
-
-#else /* ! WANT_TAPE_AIX && !WANT_TAPE_XENIX */ /* }{ */
-
-#include <sys/mtio.h>
-
-/*
- * Rewind a tape to the beginning.
- */
-int
-tape_tapefd_rewind(
- int fd)
-{
- struct mtop mt;
- int rc=-1, cnt;
-
- mt.mt_op = MTREW;
- mt.mt_count = 1;
-
- /*
- * EXB-8200 drive on FreeBSD can fail to rewind, but retrying won't
- * hurt, and it will usually even work!
- */
- for(cnt = 10; cnt >= 0; --cnt) {
- if ((rc = ioctl(fd, MTIOCTOP, &mt)) == 0) {
- break;
- }
- if (cnt) {
- sleep(3);
- }
- }
- return rc;
-}
-
-/*
- * Rewind and unload a tape.
- */
-int
-tape_tapefd_unload(
- int fd)
-{
- struct mtop mt;
- int rc=-1, cnt;
-
-#ifdef MTUNLOAD
- mt.mt_op = MTUNLOAD;
-#else
-#ifdef MTOFFL
- mt.mt_op = MTOFFL;
-#else
- mt.mt_op = syntax error;
-#endif
-#endif
- mt.mt_count = 1;
-
- /*
- * EXB-8200 drive on FreeBSD can fail to unload, but retrying won't
- * hurt, and it will usually even work!
- */
- for(cnt = 10; cnt >= 0; --cnt) {
- if ((rc = ioctl(fd, MTIOCTOP, &mt)) == 0) {
- break;
- }
- if (cnt) {
- sleep(3);
- }
- }
- return rc;
-}
-
-#if !defined(HAVE_BROKEN_FSF)
-/*
- * Forward space the tape device count files.
- */
-int
-tape_tapefd_fsf(
- int fd,
- off_t count)
-{
- struct mtop mt;
-
- if ((count > (off_t)INT_MAX) || (count < (off_t)INT_MIN)) {
-#ifdef EOVERFLOW
- errno = EOVERFLOW;
-#else
- errno = EINVAL;
-#endif
- return -1;
- }
-
- mt.mt_op = MTFSF;
- mt.mt_count = (int)count;
-
- return ioctl(fd, MTIOCTOP, &mt);
-}
-#endif
-
-/*
- * Write some number of end of file marks (a.k.a. tape marks).
- *
- * write <count> filemarks on the tape.
- */
-int
-tape_tapefd_weof(
- int fd,
- off_t count)
-{
- struct mtop mt;
-
- if ((count > (off_t)INT_MAX) || (count < (off_t)INT_MIN)) {
-#ifdef EOVERFLOW
- errno = EOVERFLOW;
-#else
- errno = EINVAL;
-#endif
- return -1;
- }
-
- mt.mt_op = MTWEOF;
- mt.mt_count = (int)count;
-
- return ioctl(fd, MTIOCTOP, &mt);
-}
-
-#endif /* !WANT_TAPE_XENIX */ /* } */
-#endif /* !WANT_TAPE_AIX */ /* } */
-#endif /* !WANT_TAPE_UWARE */ /* } */
-
-/*
- * At this point we have pulled in every conceivable #include file :-),
- * so now come the more general routines with minimal #ifdef-ing.
- */
-
-#ifdef HAVE_LINUX_ZFTAPE_H
-/*
- * is_zftape(filename) checks if filename is a valid ftape device name.
- */
-int
-is_zftape(
- const char *filename)
-{
- if (strncmp(filename, "/dev/nftape", 11) == 0) return(1);
- if (strncmp(filename, "/dev/nqft", 9) == 0) return(1);
- if (strncmp(filename, "/dev/nrft", 9) == 0) return(1);
- return(0);
-}
-#endif /* HAVE_LINUX_ZFTAPE_H */
-
-int
-tape_tape_open(
- char *filename,
- int flags,
- mode_t mask)
-{
- int ret;
- time_t timeout = 200;
- unsigned delay = 2;
-
- if ((flags & 3) != O_RDONLY) {
- flags &= ~3;
- flags |= O_RDWR;
- }
- ret = open(filename, flags, mask);
- while (ret < 0) {
- if ((errno != EAGAIN) && (errno != EBUSY) && (errno != EINTR)) {
- /*
- * Open failed completely: just return
- */
- g_fprintf(stderr, _("Opening tapedev %s: got error %s.\n"),
- filename, strerror(errno));
- return -1;
- }
-
- /*
- * if tape open fails with errno==EAGAIN, EBUSY or EINTR, it
- * may be worth retrying a few seconds later.
- */
- timeout -= delay;
- if (timeout <= 0) {
- /* Open failed: just return */
- g_fprintf(stderr, _("Opening tapedev %s: not ready.\n"), filename);
- return -1;
- }
-
- if (delay < 16)
- delay *= 2;
-
- sleep(delay);
- ret = open(filename, flags, mask);
- }
-
-#ifdef MTIOCGET
- /* Now check that we opened a tape device. */
- {
- struct mtget mt;
-
- memset(&mt, 0, SIZEOF(mt));
- if (ioctl(ret, MTIOCGET, &mt) < 0) {
- close(ret);
- g_fprintf(stderr, _("tapedev %s is not a tape device!\n"), filename);
- return -1;
- }
-
-#ifdef GMT_ONLINE
- if (!GMT_ONLINE(mt.mt_gstat)) {
- close(ret);
- g_fprintf(stderr, _("tapedev %s is offline or has no loaded tape.\n"),
- filename);
- return -1;
- }
-#endif /* GMT_ONLINE */
- }
-#endif /* MTIOCGET */
-
-
-#ifdef HAVE_LINUX_ZFTAPE_H
- /*
- * switch the block size for the zftape driver (3.04d)
- * (its default is 10kb and not 32kb)
- * A. Gebhardt <albrecht.gebhardt@uni-klu.ac.at>
- */
- if (is_zftape(filename) == 1) {
- struct mtop mt;
-
- mt.mt_op = MTSETBLK;
- mt.mt_count = 32 * 1024; /* should be blocksize ??? */
- ioctl(ret, MTIOCTOP, &mt);
- }
-#endif /* HAVE_LINUX_ZFTAPE_H */
- return ret;
-}
-
-ssize_t
-tape_tapefd_read(
- int fd,
- void *buffer,
- size_t count)
-{
- return read(fd, buffer, count);
-}
-
-ssize_t
-tape_tapefd_write(
- int fd,
- const void *buffer,
- size_t count)
-{
- return write(fd, buffer, count);
-}
-
-int
-tape_tapefd_close(
- int fd)
-{
- return close(fd);
-}
-
-void
-tape_tapefd_resetofs(
- int fd)
-{
- /*
- * this *should* be a no-op on the tape, but resets the kernel's view
- * of the file offset, preventing it from barfing should we pass the
- * filesize limit (eg OSes with 2 GB filesize limits) on a long tape.
- */
- if (lseek(fd, (off_t)0, SEEK_SET) < 0) {
- dbprintf(_("tape_tapefd_resetofs: lseek failed: <%s>\n"),
- strerror(errno));
- }
-}
-
-int
-tape_tapefd_status(
- int fd,
- struct am_mt_status *stat)
-{
- int res;
- int anything_valid = 0;
-#if defined(MTIOCGET)
- struct mtget buf;
-#endif
-
- memset((void *)stat, 0, SIZEOF(*stat));
-
-#if defined(MTIOCGET) /* { */
- res = ioctl(fd,MTIOCGET,&buf);
- if (res >= 0) {
- /*@ignore@*/
-#ifdef MT_ONL /* { */
- /* IRIX-ish system */
- anything_valid = 1;
- stat->online_valid = 1;
- stat->online = (0 != (buf.mt_dposn & MT_ONL));
- stat->bot_valid = 1;
- stat->bot = (0 != (buf.mt_dposn & MT_BOT));
- stat->eot_valid = 1;
- stat->eot = (0 != (buf.mt_dposn & MT_EOT));
- stat->protected_valid = 1;
- stat->protected = (0 != (buf.mt_dposn & MT_WPROT));
-#else /* }{ */
-#ifdef GMT_ONLINE /* { */
- /* Linux-ish system */
- anything_valid = 1;
- stat->online_valid = 1;
- stat->online = (0 != GMT_ONLINE(buf.mt_gstat));
- stat->bot_valid = 1;
- stat->bot = (0 != GMT_BOT(buf.mt_gstat));
- stat->eot_valid = 1;
- stat->eot = (0 != GMT_EOT(buf.mt_gstat));
- stat->protected_valid = 1;
- stat->protected = (0 != GMT_WR_PROT(buf.mt_gstat));
-#else /* }{ */
-#ifdef DEV_BOM /* { */
- /* OSF1-ish system */
- anything_valid = 1;
- stat->online_valid = 1;
- stat->online = (0 == (DEV_OFFLINE & buf.mt_dsreg));
- stat->bot_valid = 1;
- stat->bot = (0 != (DEV_BOM & buf.mt_dsreg));
- stat->protected_valid = 1;
- stat->protected = (0 != (DEV_WRTLCK & buf.mt_dsreg));
-#else /* }{ */
- /* Solaris, minix, etc. */
- anything_valid = 1;
- stat->online_valid = 1;
- stat->online = 1; /* ioctl fails otherwise */
-#ifdef HAVE_MT_DSREG
- stat->device_status_valid = 1;
- stat->device_status_size = SIZEOF(buf.mt_dsreg);
- stat->device_status = (unsigned long)buf.mt_dsreg;
-#endif
-#ifdef HAVE_MT_ERREG
- stat->error_status_valid = 1;
- stat->error_status_size = SIZEOF(buf.mt_erreg);
- stat->error_status = (unsigned long)buf.mt_erreg;
-#endif
-#if defined(HAVE_MT_FLAGS) && defined(MTF_SCSI) /* { */
- /*
- * On Solaris, the file/block number fields are only valid if
- * the driver is SCSI. And in that case, the dsreg value is
- * not useful (it is a retry count).
- */
- if(buf.mt_flags & MTF_SCSI) {
- stat->device_status_valid = 0;
-#ifdef HAVE_MT_FILENO
- stat->fileno_valid = 1;
- stat->fileno = (long)buf.mt_fileno;
-#endif
-#ifdef HAVE_MT_BLKNO
- stat->blkno_valid = 1;
- stat->blkno = (long)buf.mt_blkno;
-#endif
- }
-#endif /* } */
-#endif /* } */
-#endif /* } */
-#endif /* } */
- /*@end@*/
- }
-#endif /* } */
-
- /*
- * If we did not find any valid information, do a stat on the device
- * and if that returns successfully, assume it is at least online.
- */
- if(!anything_valid) {
- struct stat sbuf;
-
- res = fstat(fd, &sbuf);
- stat->online_valid = 1;
- stat->online = (char)(res == 0);
- }
-
- return res;
-}
-
-int
-tape_tape_stat(
- char *filename,
- struct stat *buf)
-{
- return stat(filename, buf);
-}
-
-int
-tape_tape_access(
- char *filename,
- int mode)
-{
- return access(filename, mode);
-}
-
-int
-tape_tapefd_can_fork(
- int fd)
-{
- (void)fd; /* Quiet unused parameter warning */
-
- return 1;
-}
-
projects / debian / amanda / blobdiff