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This essentially reverts commit 66cdd5bc99a5 which aimed to make the
dss log facility C89 conform. While this was a worthwhile goal in
2012, it has little value today, since in 2025 we can safely assume
a C99 compliant compiler.
The patch was created with
git revert -Xours 66cdd5bc
followed by manual tweaks to make it compile again.
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The doxygen comments actually make the source code harder to read,
because they tend to document the obvious. Besides, they are not used
uniformly accross the code base anyway.
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This gets rid of existing copyright templates in favor of just the
one-liner SPDX (Software Package Data Exchange) notice. All files are
licensed under the GPL-2.0, so the same tag is added to each file. No
copyright is changed by this commit.
Several files (mostly the very short ones) did not contain a license
text so far. By default all files without license information are
under the default license of this package, which is GPL version 2.
This commit adds the missing SPDX line so that now all files except
dss.css, index.html.in, INSTALL, NEWS and README have it.
We also remove author and copyright year, since the author is the same
everywhere, and the year hasn't been updated any more since at least
six years. Accurate information is available from the git log.
The COPYING file can also be removed because the license text at
https://spdx.org/licenses/GPL-2.0.html is immutable.
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The signal handler of dss has two issues: (a) it does not check the
return value of the write(2) call, and (b) it does not restore errno
on exit. The second issue might cause problems on systems where
write(2) sets errno also on success. Those problems would be very
hard to reproduce and debug. So it is probably a good idea to be
conservative here.
This commit fixes (a) by printing an error message and calling exit(3)
if the write to the signal pipe failed or resulted in a short write.
As for (b), we now save a copy of errno before the write(2) call,
and restore the old value on success.
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The web and email service of systemlinux.org was down for two
weeks. Meanwhile the dss web pages found a new home at the MPI campus
of Tübingen.
This commit changes the email addresses and the home page URL.
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Has been cooking for several weeks. The conflicts
daemon.c
exec.c
file.c
ipc.c
sig.c
are trivial and can be resolved easily.
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As pointed out by Daniel Richard G. some of the dss header files
are named the same as system header files.
This patch renames these headers as well as their corresponding .c
files. Specifically, error.h, fd.h, signal.h, string.h and time.h
become err.h, file.h, sig.h, str.h and tv.h.
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