UFS does not allow files to end with a hole; it requires that the last block of a file be allocated. As fsck_ffs(8) initially scans each allocated inode, it tracks the last allocated block in the inode. It then checks that the inode's size falls in the last allocated block. If the last allocated block falls before the size, a `file size beyond end of allocated file' warning is issued and the file is shortened to reference the last allocated block (to avoid having it reference a hole at its end). If the last allocated block falls after the size, a `partially truncated file' warning is issued and all blocks following the block referenced by the size are freed. Because of an incorrect unsigned comparison, this test was failing to handle files with no allocated blocks but non-zero size (which should have had their size reset to zero). Once that was fixed the test started incorrectly complaining about short symbolic links that place the link path in the inode rather than in a disk block. Because these symbolic links have a non-zero size, but no allocated blocks, fsck_ffs wanted to zero out their size. This patch has to detect and avoid changing the size of such symbolic links. Reported by: Chuck Silvers Tested by: Chuck Silvers MFC after: 1 week Sponsored by: Netflix
FreeBSD Source:
This is the top level of the FreeBSD source directory.
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.
Source Roadmap:
Directory | Description |
---|---|
bin | System/user commands. |
cddl | Various commands and libraries under the Common Development and Distribution License. |
contrib | Packages contributed by 3rd parties. |
crypto | Cryptography stuff (see crypto/README). |
etc | Template files for /etc. |
gnu | Various commands and libraries under the GNU Public License. Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
include | System include files. |
kerberos5 | Kerberos5 (Heimdal) package. |
lib | System libraries. |
libexec | System daemons. |
release | Release building Makefile & associated tools. |
rescue | Build system for statically linked /rescue utilities. |
sbin | System commands. |
secure | Cryptographic libraries and commands. |
share | Shared resources. |
stand | Boot loader sources. |
sys | Kernel sources. |
sys/arch /conf |
Kernel configuration files. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. |
tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
tools | Utilities for regression testing and miscellaneous tasks. |
usr.bin | User commands. |
usr.sbin | System administration commands. |
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see FreeBSD Handbook.