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- pathexec_run is now called exec_ae
a for provided file name (default: argv[0])
e for provided envp (default: environ)
- pathexec is now called mexec. m for merge environment. Option letters are:
a for provided file name (default: argv[0])
e for provided envp (default: environ)
f for provided envp *and* length of the envp
m for provided modif string plus its length (the length is always needed
because the modifs are null-terminated)
n for provided modif string, length *and* number of modifs
- functions have a foo0 version for _exit(0) when argv[0] is null
- functions have a xfoo version to die if the exec fails
- and a xfoo0
- Compatibility #defines and #includes are there until the next major bump
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The goal is to make late channel creation easy, as opposed to
textclient which always creates a new channel at start time.
This commit also moves posixishard.h inclusions as late as possible.
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void ** does not exist: the address of a generic pointer is not
properly defined (different pointer types may have different
representations). So, alloc_realloc cannot exist as is without UB.
Fortunately, it's not supposed to be used in the skalibs programming
style, and skalibs itself only uses it in two places
(stralloc_ready_tuned and stralloc_shrink) where the pointer is a
char *.
So we just fix the UB by making alloc_realloc() take a char **,
and it's only defined for that pointer type.
Nothing to see here folks, nothing happened at all.
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This is arguably a bugfix, since selfpipe without signalfd
relies on signals being actually delivered, and a process may
have inherited a nonempty sigprocmask.
Also use SIG_BLOCK instead of SIG_SETMASK when using
selfpipe_trapset() with signalfd, because we shouldn't unblock
signals that may have previously been blocked. This is also
arguably a bugfix.
This commit is essential for using the version of s6-linux-init
that blocks SIGINT before disablecad on kernels without signalfd.
Without it, SIGINT never gets unblocked, so it's never delivered
to s6-svscan.
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* --enable-clock and --enable-monotonic are gone
* tain_sysclock() has been renamed tain_wallclock_read()
* tain_wallclock_read() reads from CLOCK_REALTIME (or gettimeofday())
* tain_clockmon[_init]() have been renamed to tain_stopwatch_[read|init]()
and now accept a monotonic clock name as an extra argument
* tain_now() points to the system (wall) clock by default
* tain_now_set_[stopwatch|wallclock]() can be used to switch
Now to make a pass on all skarnet.org programs and add a
tain_now_set_stopwatch() call everywhere needed... >.>
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This will break things. It's a known issue. Patches to other
packages will come later, to adapt them to the new API.
To work around brokenness, there needs to be *two* different
headers:
1. one to be used before including system headers, that maximizes
visibility by enabling system-dependent feature test macros
(that will be tested by system headers)
2. one to be used after including system headers, that performs
preprocessor tests and defines.
skalibs/nonposix.h is the first one.
Previously, there was no second one, and the tests were scattered
all over. There was a strnlen declaration in skalibs/posixplz.h
(which serves a totally different function: declaring things that
should be in POSIX, but *are not*, i.e. working around problems in
the standard, instead of problems in systems failing to respect
the standard), a build-time sysdep for error.h, #defines for
MSG_NOSIGNAL, etc. etc.
skalibs/posixishard.h now is the second one, and centralizes
all the tests.
As a result, the eproto sysdep is unnecessary and has been removed.
skalibs/error.h is now a static header, it is not built anymore.
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This fixes a segfault when a user calls uint320_fmt(NULL,...),
and makes the fmtlist functions return the correct number of
characters when called with NULL.
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