growisofs.c

最新的linux下dvd刻录软件,支持DVD+RW、DVD-RW光盘刻录。

 *   working directory instead of media;
 * - generalize -M /dev/cdrom=file.iso option, but if file.iso is not
 *   /dev/zero, insist on sane -C argument to be passed prior -M and
 *   double-verify the track starting address;
 * 5.11:
 * - authorship statement in -version output;
 * - make speed_factor floating point and print "Current Write Speed"
 *   factor for informational purposes;
 * - Pioneer DVR-x06 exhibited degraded performance when recording DVD+;
 * - Pioneer DVR-x06 failed to complete DVD+ recording gracefully;
 * - alter set-root-uid behaviour under Linux from "PAM-junky" to more
 *   conservative one;
 * 5.12:
 * - single Pioneer DVR-x06 user reported that very small fraction of
 *   his recordings get terminted with "LONG WRITE IN PROGRESS," even
 *   though growisofs explicitly reserves for this condition... It
 *   turned out that at those rare occasions unit reported a lot of free
 *   buffer space, which growisofs treated as error condition. It's not
 *   clear if it's firmware deficiency, but growisofs reserves even for
 *   this apparently rare condition now.
 * - [major] issue with MODE SENSE/SELECT on SANYO derivatives, such as
 *   Optorite, is addressed;
 * - Linux can't open(2) a socket by /dev/fd/N, replace it with dup(2);
 * - more relaxed command line option parsing and simultaneously a
 *   zealous check to make sure that no mkisofs options are passed
 *   along with -[ZM] /dev/cdrom=image;
 * - report I/O error if input stream was less than 64K;
 * - -M /dev/cdrom=/dev/zero didn't relocate the lead-out in DVD-RW
 *   Restricted Overwrite;
 * 5.13:
 * - workarounds for Panasonic/MATSUSHITA DVD-RAM LF-D310;
 * - Solaris: media load upon start-up;
 * 5.14:
 * - LG GSA-4040B failed to auto-format DVD+RW blanks;
 * - '| growisofs -Z /dev/cdrom=/dev/fd/0' failed with "already carries
 *   isofs" even when running interactively, so I check on /dev/tty
 *   instead of isatty(0);
 * - error output was confusing when overburn condition was raised in
 *   dry-run mode;
 * - more sane default drain buffer size to minimize system load when
 *   unit fails to return usable buffer utilization statistics under
 *   "LONG WRITE IN PROGRESS" condition;
 * - progress indicator process was orphaned if -Z /dev/cdrom=file.iso
 *   terminated prematurely;
 * - -overburn -Z /dev/cdrom=file.iso printed two "ignored" messages;
 * - Solaris: use large-file API in setup_fds;
 * - HP-UX: HP-UX support is contributed by HP;
 * - block signals in the beginning of recording, formally it shouldn't
 *   be necessary, but is apparently needed for some units (is it?);
 * - prepare code for -speed even in DVD+ context, need a test-case...
 * - TEAC DV-W50D and Lite-On LDW-811S failed to set recording velocity,
 *   deploy GET PERFORMANCE/SET STREAMING commands;
 * - Lite-On LDW-811S returns 0s in Write Speed descriptors in page 2A,
 *   this would cause a problem if DVD+ speed control was implemented;
 * 5.15:
 * - confusing output when DAO mode is manually engaged and DVD-RW media
 *   is minimally blanked;
 * - complement -use-the-force-luke=dao[:size] to arrange for piping
 *   non-iso images in DAO mode (size is to be expressed in 2KB chunks);
 * - Pioneer DVR-x06 apparently needs larger timeout to avoid "the LUN
 *   appears to be stuck" message in the beginning of DAO recording;
 * - HP-UX: fix-up umount code;
 * - HP-UX: make sure user doesn't pass /dev/rscsi/cXtYlZ, they should
 *   stick to /dev/rdsk/cXtYdZ;
 * - implement -use-the-force-luke=seek:N -Z /dev/dvd=image to arrange
 *   for 'builtin_dd if=image of=/dev/dvd obs=32k seek=N/16' (note that
 *   N is expected to be expressed in 2KB chunks);
 * - skip overwrite check for blank media to avoid read errors at start,
 *   which reportedly may cause bus reset in some configurations;
 * - make get_mmc_profile load media, explicit media load used to be on
 *   per platform basis, while it doesn't have to;
 * - postpone handle_events till after dry-run checkpoint;
 * - error reporting revised;
 * - Optorite seems to insist on resuming suspended DVD+RW format, at
 *   least it's apparently the only way to get *reliable* results
 *   (formally this contradicts specification, which explicitly states
 *   that format is to be resumed automatically and transparently);
 * - FreeBSD: FreeBSD 5-CURRENT since 2003-08-24, including 5.2 fails
 *   to pull sense data automatically, at least for ATAPI transport,
 *   so I reach for it myself (it's apparently a kernel bug, which
 *   eventually will be fixed, but I keep the workaround code just in
 *   case);
 * - -speed option in DVD+ context is enabled, upon release tested with
 *   Plextor PX-708A;
 * - make builtin_dd print amount of transferred data, together with
 *   -use-the-force-luke=seek:N it's easier to maintain "tar-formatted"
 *   rewritable media;
 * 5.16:
 * - brown-bag bug in "LONG WRITE IN PROGRESS" code path;
 * 5.17:
 * - Linux: fix for /proc/sys/dev/cdrom/check_media set to 1;
 * - HP-UX: INQUIRY buffer is required to be 128 bytes. Well, "required"
 *   is wrong word in this context, as it's apparently a kernel bug
 *   addressed in PHKL_30038 (HPUX 11.11) and PHKL_30039 (HPUX 11.23).
 *   This "change" affects all dvd+rw-tools, but I don't bump their
 *   version numbers for this, as it's an "ugly" workaround for an
 *   *external* problem;
 * - switch to GET PERFORMANCE even for current write speed (most
 *   notably required for NEC and derivatives);
 * - the above change required adaptations for Pioneer and LG units,
 *   which don't/fail to provide current write speed through GET
 *   PERFORMANCE despite the fact that the command is mandatory;
 * - HP-UX: retain root privileges in setup_fds, SIOC_IO requires them;
 * - fix for COMMAND SEQUENCE ERROR in the beginning of DVD-recording;
 * - drop privileges prior mkisofs -version;
 * 5.18:
 * - refuse to run if ${SUDO_COMMAND} is set;
 * - minimize amount of compiler warnings on 64-bit platforms;
 * - skip count-down if no_tty_check is set;
 * - -use-the-force-luke=tracksize:size option by suggestion from K3b;
 * - Linux: fix for "Bad file descriptor" with DVD+RW kernel patch;
 * 5.19:
 * - IRIX: IRIX 6.x port is added;
 * - Solaris: get rid of media reload, which made it possible to improve
 *   volume manager experience as well;
 * - address speed verification issues with NEC ND-2500 and Plextor
 *   PX-708A;
 * - make DVD-RAM work in "poor-man" mode;
 * - average write speed report at the end of recording;
 * - LG GSA-4081B fails to "SET STREAMING" with "LBA OUT OF RANGE" for
 *   DVD+RW media, but not e.g. DVD-R;
 * 5.20:
 * - DVD-RAM reload if recorded with -poor-man;
 * - -use-the-force-luke=wrvfy for WRITE AND VERIFY(10);
 * - "flushing cache" takes forever, from 5.19-1;
 * - HP-UX: inconsistency between /dev/rdsk and /dev/rscsi names;
 * - handle non-fatal OPC errors;
 * - DVD+R Double Layer support;
 * - -use-the-force-luke=4gms to allow ISO9660 directory structures
 *   to cross 4GB boundary, the option is effective only with DVD+R DL
 *   and for data to be accessible under Linux isofs a kernel patch is
 *   required;
 * - more sane sanity check for -use-the-force-luke=tracksize:N;
 * - -use-the-force-luke=break:size to set Layer Break position for
 *   Double Layer recordings;
 * - speed verification issue with 8x AccessTek derivatives addressed;
 * - -use-the-force-luke=noload to leave tray ejected at the end;
 * - allow to resume incomplete sessions recorded with -M option;
 * - Layer Break position sanity check with respect to dataset size;
 * - #if directive to get rid of sudo check at compile time with
 *   'make WARN=-DI_KNOW_ALL_ABOUT_SUDO';
 * 5.21:
 * - Linux: fix for kernel version 2.6>=8, 2.6.8 itself is deficient,
 *   but the problem can be worked around by installing this version
 *   set-root-uid;
 * 6.0:
 * - fix for DVD+R recordings in Samsung TS-H542A;
 * - DVD-R Dual Layer DAO and Incremental support;
 * - versioning harmonization;
 * - multi-threaded(*) design;
 *   *)	apparently strace-ing NPTL processes can disrupt synchroni-
 *	zation between threads and cause a deadlock condition. If
 *	you ought to strace growisofs, make sure it's started with
 *	LD_ASSUME_KERNEL environment variable set to 2.4.
 * - asynchronous ring buffer implementation;
 * - Win32/Mingw32 port [for platform-specific notes see
 *   http://fy.chalmers.se/~appro/linux/DVD+RW/tools/win32/];
 * - refine Pioneer strategies;
 * - WRITE procedure to recognize "IN PROCESS OF BECOMING READY"
 *   [observed on newer Lite-On 1693S firmware and NEC];
 * - allow for more intuitive interpretation of -speed factor with
 *   units returning minimal velocity other than 1x;
 * - -use-the-force-luke=noopc to skip OPC altogether;
 * - implement 50% check for DVD-R DL;
 * - demote failure to change speed to warning;
 * 6.1:
 * - FreeBSD: improve backward binary compatibility;
 * - Linux: default rlimit for locked pages is way too small [note
 *   that in order to allocate ring buffer larger than default 32MB
 *   through command line option, you have to increase memorylocked
 *   limit accordingly prior application start];
 * - make -use-the-force-luke=noload, which leaves tray open, work;
 * - DEFAULT_BUF_SIZE_MB is a macro, which can be redefined at
 *   compile time with 'make WARN=-DDEFAULT_BUF_SIZE_MB=[16|64]' to
 *   change the default ring buffer size;
 * -