./sysutils/wipe, Secure data destruction

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Branch: CURRENT, Version: 2.2.0, Package name: wipe-2.2.0, Maintainer: pkgsrc-users

Wipe is a secure file wiping utility.

There are some low level issues that must be taken into consideration.
One of these is that there must be some sort of write barrier between
passes. Wipe uses fdatasync(2) (or fsync(2)) as a write barrier, or
if fsync(2) isn't available, the file is opened with the O_DSYNC or
O_SYNC flag. For wipe to be effective, each pass must be completely
written. To ensure this, the drive must support some form of a write
barrier, write cache flush, or write cache disabling. SCSI supports
ordered command tags, has a force media access bit for commands, and
write cache can be disable on mode page 8. IDE/ATA drives support
write cache flushes and write cache disabling.

Unfortunately, not all drives actually disable write cache when asked
to. Those drives are broken. Write caching should always be
disabled, unless your system is battery backed and always powers down
cleanly.


Master sites:

SHA1: 4dd18f260ecd91b726336b2788fa33db04d6691a
RMD160: 5d1861bd893e01e94205a7ac2efadb1c756da700
Filesize: 68.49 KB

Version history: (Expand)


CVS history: (Expand)


   2016-02-26 11:24:14 by Jonathan Perkin | Files touched by this commit (44)
Log message:
Use OPSYSVARS.
   2015-11-04 02:32:42 by Alistair G. Crooks | Files touched by this commit (499)
Log message:
Add SHA512 digests for distfiles for sysutils category

Problems found with existing digests:
	Package memconf distfile memconf-2.16/memconf.gz
	b6f4b736cac388dddc5070670351cf7262aba048 [recorded]
	95748686a5ad8144232f4d4abc9bf052721a196f [calculated]

Problems found locating distfiles:
	Package dc-tools: missing distfile dc-tools/abs0-dc-burn-netbsd-1.5-0-gae55ec9
	Package ipw-firmware: missing distfile ipw2100-fw-1.2.tgz
	Package iwi-firmware: missing distfile ipw2200-fw-2.3.tgz
	Package nvnet: missing distfile nvnet-netbsd-src-20050620.tgz
	Package syslog-ng: missing distfile syslog-ng-3.7.2.tar.gz

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.
   2014-10-09 16:06:00 by Thomas Klausner | Files touched by this commit (1)
Log message:
Remove pkgviews: don't set PKG_INSTALLATION_TYPES in Makefiles.
   2013-10-24 11:43:49 by Jonathan Perkin | Files touched by this commit (1)
Log message:
Fix build on SunOS.  Patch from Sebastian Wiedenroth.
   2013-06-17 08:09:06 by David A. Holland | Files touched by this commit (2)
Log message:
Use DIOCGINFO and/or DIOCGWEDGEINFO if DIOCGPART isn't defined. Fixes
build on netbsd-6 and up. Caution: while it builds, I haven't actually
tested it.
   2013-06-17 07:37:22 by David A. Holland | Files touched by this commit (3)
Log message:
Merge two patches that patch the same file.
   2012-10-23 21:51:39 by Aleksej Saushev | Files touched by this commit (447)
Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.
   2011-01-10 07:13:37 by OBATA Akio | Files touched by this commit (1)
Log message:
LICENSE=gnu-gpl-v2.