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Renato Botelho d32a66b2a2 When passwd or group information is changed (by pw, vipw, chpass, ...)
temporary file is created and then a rename() call move it to official file.
This operation didn't have any check to make sure data was written to disk
and if a power cycle happens system could end up with a 0 length passwd
or group database.

There is a pfSense bug with more infor about it:

https://redmine.pfsense.org/issues/4523

The following changes were made to protect passwd and group operations:

* lib/libutil/gr_util.c:
 - Replace mkstemp() by mkostemp() with O_SYNC flag to create temp file
 - After rename(), fsync() call on directory for faster result

* lib/libutil/pw_util.c
 - Replace mkstemp() by mkostemp() with O_SYNC flag to create temp file

* usr.sbin/pwd_mkdb/pwd_mkdb.c
 - Added O_SYNC flag on dbopen() calls
 - After rename(), fsync() call on directory for faster result

* lib/libutil/pw_util.3
 - pw_lock() returns a file descriptor to master password file on success

Differential Revision:	https://reviews.freebsd.org/D2978
Approved by:	bapt
Sponsored by:	Netgate
2015-07-02 17:30:59 +00:00
bin mv: Improve message when moving two or more files to non-directory. 2015-06-28 21:36:00 +00:00
cddl First cut of DTrace for AArch64. 2015-07-01 15:51:11 +00:00
contrib Update meta2deps example after i386-elf to i386 rename 2015-07-02 14:44:30 +00:00
crypto Merge OpenSSL 1.0.1o. 2015-06-12 16:48:26 +00:00
etc Updated random(4) boot/shutdown scripting. 2015-06-30 17:09:41 +00:00
games Fix a typo. 2015-07-02 11:46:35 +00:00
gnu Use single instance of the identical INKERNEL() and PMC_IN_KERNEL() 2015-07-02 14:37:21 +00:00
include new depends 2015-06-16 23:37:19 +00:00
kerberos5 Fix a typo introduced in r262209. 2015-06-18 21:18:43 +00:00
lib When passwd or group information is changed (by pw, vipw, chpass, ...) 2015-07-02 17:30:59 +00:00
libexec Save & restore the floating-pont argument registers before calling 2015-07-02 14:00:07 +00:00
release Fix the path to the UFS/MSDOSFS filesystem labels, since they 2015-07-02 02:33:58 +00:00
rescue Add META_MODE support. 2015-06-13 19:20:56 +00:00
sbin Add -b to the devlist usage info, forgotten in r260059. 2015-07-02 13:57:26 +00:00
secure Add compatibility with $2y$ bcrypt hashes 2015-06-16 23:57:29 +00:00
share Set MACHINE_CPU to arm64 when building for arm64. This is needed by the 2015-07-02 13:42:57 +00:00
sys Remove an unneeded define and old comment referencing amd64. 2015-07-02 16:13:29 +00:00
targets Support WITH_LLDB 2015-06-16 23:38:44 +00:00
tests Misc fixes from projects/bmake 2015-06-11 21:13:05 +00:00
tools cxgbetool: fix code that decodes T5 SGE contexts. Some of the fields 2015-06-30 22:30:21 +00:00
usr.bin Add the year to the VAX-11/780 announcement entry. 2015-07-02 12:08:05 +00:00
usr.sbin When passwd or group information is changed (by pw, vipw, chpass, ...) 2015-07-02 17:30:59 +00:00
.arcconfig Phabricator: enable "history.immutable": 2015-04-30 00:27:53 +00:00
.arclint phabricator related changes: 2015-04-20 20:33:22 +00:00
COPYRIGHT Bump copyright year. 2014-12-31 10:00:43 +00:00
LOCKS
MAINTAINERS Remove cokane@ from MAINTAINERS for 3dfx(4)/tdfx(4) because their email 2014-11-25 05:25:12 +00:00
Makefile targets now needs .PHONY 2015-06-22 16:13:17 +00:00
Makefile.inc1 First cut of DTrace for AArch64. 2015-07-01 15:51:11 +00:00
ObsoleteFiles.inc Add one more file missed in the BIND-removal entries. 2015-07-01 15:54:13 +00:00
README Import OpenSSL 1.0.1o. 2015-06-12 16:33:55 +00:00
UPDATING Huge cleanup of random(4) code. 2015-06-30 17:00:45 +00:00

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