moved to ELF.
Move the a.out specific defines and macros, but the MID_xxx values, from
<sys/exec.h> to <a.out.h>, and update the few userland binaries which really
need these defines (i.e. boot-related tools for old architectures) to
explicitly include <a.out.h> when needed.
"Fine" deraadt@
to match Solaris and _not_ match glibc/BSDs and no one caught it
before publication. Provide the new name but keep providing the
existing names under the same conditions as before. Update #include
visibility and dlfcn(3) manpage and add restrict qualifiers.
ok deraadt@
According to bit_alloc(3) man page the arguments to bitstring macros
are evaluated only once and may safely have side effects. Fix the
implementation with temporary variables to fulfill this requirement.
OK florian@ deraadt@
For hardware devices, add a server.device control
with a single item and the device name as display
string.
Add the necessary sndioctl(1) bits to print it.
To be used in httpd(8) shortly to prevent toctu issues.
This makes __fdopendir internally accessible to avoid unnecessary
syscalls in scandirat(3). Suggested & diff by guenther
suggested by & OK millert
tweak & OK guenther
OK tb, jca
This rides the libc crank.
Even if those _[BCNLPSUX] defines are in the reserved namespace, some
ports make use of those identifiers and thus need pointless
headscratching and patches. Just use a longer reserved prefix.
We can't just #undef those defines as they are used in libc.
Change similar to what NetBSD did around 2010. Went through base builds
and an amd64 bulk build, the only fallout was lib(e)stdc++ base_ctype.h.
"make includes" will install the latest ctype.h and libstdc++ ctype_base.h.
"makes sense" deraadt@, ok sthen@ tb@
it is a dangerous alternative entry point for all system calls, and thus
incompatible with the precision system call entry point scheme we are
heading towards. This has been a 3-year mission:
First perl needed a code-generated wrapper to fake syscall(2) as a giant
switch table, then all the ports were cleaned with relatively minor fixes,
except for "go". "go" required two fixes -- 1) a framework issue with
old library versions, and 2) like perl, a fake syscall(2) wrapper to
handle ioctl(2) and sysctl(2) because "syscall(SYS_ioctl" occurs all over
the place in the "go" ecosystem because the "go developers" are plan9-loving
unix-hating folk who tried to build an ecosystem without allowing "ioctl".
ok kettenis, jsing, afresh1, sthen
of the C language but are part of the C library and have to be
declared in <uchar.h> - see paragraph 7.28.2.
In stark contrast, according to the C++11 standard, char32_t and char16_t
are part of the C++ language, namely, keywords - see paragraph 2.12.1.
Consequently, they must not be declared in a header file.
To resolve this vile contradiction, use the predefined macro __cplusplus
to find out which language is in use for the current compilation unit -
see C11 paragraph 6.10.8.3 and C++11 paragraph 16.8.1.
Reminded of the problem by naddy@.
OK naddy@ who tested in make build / make release.
Looks reasonable to millert@.
OK millert@.
Tested by naddy@ in a bulk and by matthieu@ in the new foot(1) port.
I originally wrote the code in 2022 at the prodding of espie@.
Using one improvement to a manual page from jmc@.
exposed in a new field returned by sysctl(KERN_PROC). Update
pthread_{get,set}_name_np(3) to use the syscalls. Show them, when
set, in ps -H and top -H output.
libc and libpthread minor bumps
ok mpi@, mvs@, deraadt@
This will be used in waitid(2) to set si_utime and si_stime.
The definition of struct timespec also moves from time.h to sys/_time.h
for struct itimerspec. OK kettenis@
The new sio_flush(3) functions works the same way as sio_stop(3),
except that it doesn't wait for play buffer to be drained. Instead,
it discards its contents and returns immediately.
as const, moving them from .data to .data.rel.ro. The other BSDs
did this a long time ago; NetBSD did a chunk in 1998, which is long
enough I didn't bother to get exact dates for others.
ok deraadt@ millert@
anytime a class is looked up, the /etc/login.conf.d/${class} file will be
checked first for a matching class definition; this will allow us to easily
add custom login classes from packages
ok millert@
On BSD, fpos_t is typedef'd to off_t but some systems use a struct.
This means fpos_t is not a portable function argument or return value.
Both FreeBSD and the Linux libbsd funopen() have switched to off_t
for this--we should too. From Joe Nelson. OK deraadt@
libc can't do DNSSEC validation but it can ask a "security-aware"
resolver to do so. Let's send queries with the AD flag set when
appropriate, and let applications look at the AD flag in responses in
a safe way, ie clear the AD flag if the resolvers aren't trusted.
By default we only trust resolvers if resolv.conf(5) only lists name
servers on localhost - the obvious candidates being unwind(8) and
unbound(8). For non-localhost resolvers, an admin who trusts *all the
name servers* listed in resolv.conf(5) *and the network path leading to
them* can annotate this with "options trust-ad".
AD flag processing gives ssh -o VerifyHostkeyDNS=Yes a chance to fetch
SSHFP records in a secure manner, and tightens the situation for other
applications, eg those using RES_USE_DNSSEC for DANE. It should be
noted that postfix currently assumes trusted name servers by default and
forces RES_TRUSTAD if available.
RES_TRUSTAD and "options trust-ad" were first introduced in glibc by
Florian Weimer. Florian Obser (florian@) contributed various
improvements, fixed a bug and added automatic trust for name servers on
localhost.
ok florian@ phessler@
years back, so we can remove it. Since nothing in the ecosystem calls it, I
am not cranking the libc major as required, surely another crank will come
along soon.
noticed by Dante Catalfamo
ok millert
if RTLD_NODELETE isn't POSIX, it is widely deployed: at least linux,
freebsd, dragonfly, netbsd, solaris, illumos, apple, and fuchsia have
it.
ok kettenis@ on previous version
with help from and ok guenther@
diff partially inspired from a diff from brad@
We need to test what the compiler supports, not what the C library
provides. This prevents static_assert from being defined when compiling
with the in-tree gcc (4.2.1) which does not support _Static_assert.
be 8 bytes in the 64-bit ABI just like in the 32-bit ABI. But that means
there is no "spare" word in the TCB that we can use to store a pointer
to our struct pthread. So we have to treat powerpc64 special.
Also recognize that the thread pointer points 0x7000 bytes after the TCB.
Since the TCB is 8 bytes this means that TCB_OFFSET should be 0x7008.
Pointed out by guenther@; ok deraadt@
