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04a8fb24
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2021-03-02T00:48:02
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Add missing prototypes to functions
Warned-by: gcc
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890699a7
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2019-08-06T18:51:45
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build: Abstract symbol versioning via new libbsd_symver_* macros
This makes it more obvious what they are doing. It will make it easier
to make these directives more portable, as they are really ELF specific.
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574c7a13
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2018-06-18T00:36:44
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Protect C language extensions with two leading and trailing underscores
This should make their usage safer against user macros.
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2a8514d8
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2017-07-17T00:57:07
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Fix handling of non-contiguous argv + envp in setproctitle()
The two arrays might not reference contiguous memory, and assuming they
are does break at least now on GNU/Hurd, which contains an unmapped
memory block between the memory used by the two arrays.
Just check that each element is strictly after the previous one, so that
we know there are no unmapped memory blocks inbetween.
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ed84bec5
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2016-02-10T10:38:51
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Switch URLs from http or git to https
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948bcf1d
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2013-07-13T02:11:20
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Warn when setproctitle() gets called before initialization
Try to give a helpful message in case the program is not initializing
the setproctitle() machinery.
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c5b95902
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2013-07-11T12:25:54
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Move setproctitle() automatic initialization to its own library
The automatic initialization cannot be part of the main shared library,
because there is no thread-safe way to change the environ global
variable. This is not a problem if the initializaion happens just at
program load time, but becomes one if the shared library is directly or
indirectly dlopen()ed during the execution of the program, which could
have either kept references to the old environ or could change it in
some other thread. This has been observed for example on systems using
Samba NSS modules.
To avoid any other possible fallout, the constructor is split into a
new static library that needs to be linked explicitly into programs
using setproctitle(). As an additional safety measure the pkg-config
linker flags will mark the program as not allowing to be dlopen()ed
so that we avoid the problem described above.
Reported-by: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=66679
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ad613d9d
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2013-06-07T07:11:50
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Create a shallow copy of environ before replacing it in setproctitle()
Because clearenv() or setenv() might free the environ array of pointers,
we should make sure to copy it so that we can access it later on when
doing the deep copy via setenv().
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=65470
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50e4c55a
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2013-06-08T17:55:19
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Try to check if setproctitle() constructor got passed arguments
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e084ce3f
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2013-06-07T04:46:29
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Specify setproctitle_stub() signature manually if typeof is missing
Do not stop exporting the function in the version node even if typeof
is not available, as that would break ABI.
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6faea4d2
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2013-05-29T02:23:56
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Force setproctitle() into .init_array section
The GNU .init_array support is an extension over the standard System V
ABI .init_array support, which passes the main() arguments to the init
function.
This support comes in three parts. First the dynamic linker (from glibc)
needs to support it. Then function pointers need to be placed in the
section, for example by using __attribute__((constructor)), that the
compiler (gcc or clang for example) might place in section .ctors and
the linker (from binutils) will move to .init_array on the output
object, or by placing them directly into .init_array by the compiler
when compiling. If this does not happen and the function pointers end
up in .ctors, then they will not get passed the main() arguments, which
we do really need in this case.
But this relies on recent binutils or gcc having native .init_array
support, and not having it disabled through --disable-initfini-array.
To guarantee we get the correct behaviour, let's just place the function
pointer in the .init_array section directly, so we only require a recent
enough glibc.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=65029
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e9933255
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2013-05-25T17:11:53
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Make setproctitle() available in 0.2 and 0.5 version nodes
Make the 0.5 version the default, so that code wanting the actual
implemented version can get a proper versioned depdendency. For code
linked against the old version, make it available as an alias.
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c984dacd
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2012-11-27T14:24:13
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Implement sendmail semantics for setproctitle()
Prefix the title with "progname: ", and skip it if the format string
starts with '-' (which gets skipped on output too).
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35785f8d
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2012-11-25T21:10:53
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Modify setproctitle() to conform to project coding style
Use local getprogname()/setprogname() instead of reimplementing them
locally. Use clearenv() if available, not just on glibc. Use bool
instead of _Bool. Use paranthesis on sizeof. Fold the SPT_MIN macro
into spt_min(). Make spt_init() static. Avoid unnecessary gotos.
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2a0260d0
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2012-11-28T11:09:02
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Add a setproctitle() implementation
Taken from libnostd.
Signed-off-by: Guillem Jover <guillem@hadrons.org>
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e7f39760
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2012-03-23T10:31:42
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Add email address to my name
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b891772a
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2011-05-29T02:49:14
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Remove blank lines at EOF
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3fed78e5
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2010-01-10T00:37:03
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Replace setproctitle dummy macro with a function stub
This way we can replace it later on with a real implementation so that
applications can immediately benefit from it w/o the need to recompile
them.
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