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Negative absolute timeouts are valid inputs.
With input from kettenis@.
Thread: https://marc.info/?l=openbsd-tech&m=170467558006767&w=2
ok guenther@
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Compare the current time with the absolute timeout before computing
the relative timeout to avoid arithmetic overflow. Fixes a bug where
large negative absolute timeouts are subtracted into large positive
relative timeouts and incorrectly cause the caller to block.
While here, use timespeccmp(3) and timespecsub(3) to simplify the
code.
Thread: https://marc.info/?l=openbsd-tech&m=169945962503129&w=2
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ld.so already did, will both be EPERM
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- zap an unused Pp
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bit of optimization; ok tb@ asou@
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for how it is used (in ld.so, it's not like anyone else can call it).
Also document the errors..
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put their macros, and also turn a few "EXIT" into "END" for consistency with
other platforms. NFCI
ok kettenis@ deraadt@
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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
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Required for strict-alignment architectures and a good idea on others.
ok deraadt@
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arguments, so we have to cope.
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ok kettenis, some tweaks from jmc
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with {uint offset, uint syscall#} entries in libc & ld.so.
In libc a few syscall# entries (break, sigprocmask, _tfork, _threxit)
are duplicated because additional or inline uses occur (that situation
is handled elsewhere)
ok kettenis
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non-libc users. This is a two-liner macro anyway, and this will make
deraadt@'s future changes in this area easier to make. NFC
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malloc option D (aka 1), 2, 3 or 4. No performance impact if not
used. ok asou@
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Otherwise gethostbyname(3) returns stack garbage when it is called
with an invalid host name, indicating success.
Problem observed in segfaulting ifconfig(8) by bluhm.
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localhost is not a valid IP address and so getaddrinfo(3) has to fail.
Found by anton in pfctl & ipsecctl regress.
OK anton
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RFC 6761, 6.3 Domain Name Reservation Considerations for "localhost.":
3. Name resolution APIs and libraries SHOULD recognize localhost
names as special and SHOULD always return the IP loopback address
for address queries and negative responses for all other query
types. Name resolution APIs SHOULD NOT send queries for
localhost names to their configured caching DNS server(s).
This makes sure that the getaddrinfo(3) and gethostbyname(3) family of
functions always return the loopback address and do not send queries
to name servers. This includes "localhost", "localhost." and
everything under ".localhost" and ".localhost.".
For example, a host underneath the .com.ar zone will per default have
a search list of "com.ar.". resolv.conf(5) has a default of "lookup
bind file". Both combined will result in lookups for "localhost" to
not return 127.0.0.1 because localhost.com.ar is registered in DNS.
It has been known for decades that this is a problem, especially for
localhost.
Problem recently spotted by gonzalo@ and debugged by sthen@
Testing sthen, gonzalo
Input & OK phessler, eric, millert
OK sthen, kn, deraadt
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Missed in previous some time ago; while here remove confusing else.
Input & OK eric
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Wo don't have them anywhere else, so we don't need them here.
No text change.
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OK millert@ jmc@
triggered by a question from cheloha@
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OK kn@ jmc@
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Use timespecisvalid(3) to check both bounds for tv_nsec.
Link: https://marc.info/?l=openbsd-tech&m=169913314230496&w=2
ok miod@
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not real problems)
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from regular network. All the crummy pledge clones don't do that.
ok millert
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Otherwise, the prototypes for timespec_get() and aligned_alloc()
are not visible. OK guenther@
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the 0x0 call sites for leak reports. Also display more info on
detected write of free chunks: print the info about where the chunk
was allocated, and for the preceding chunk as well.
ok asou@
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ok benno@, jmc@, schwarze@
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pinsyscall(SYS_execve, ...). Upon review, this is a fairly small
set of programs which either pledge() aggressively or don't usually
operate in a risky operating environment. We now point at a location
which is definately not a "syscall" instruction.
ok kettenis
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available libc API functions and utility programs that produce
equivalent output on OpenBSD;
OK deraadt@
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In part based on input from deraadt@, OK millert@.
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Previously, we set errno to EBADF if the cantwrite() macro (which calls
__swsetup()) returns true for POSIX compliance. However, we neglected
to also set the error flag, __SERR. Rather than set the error flag in
all callers of cantwrite(), set both errno and the error flag in
__swsetup(). This matches what FreeBSD does and makes it possible
to choose a proper errno value for the second error condition in
__swsetup(). OK deraadt@
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usbN.X.Y becomes usbN.Z.X.Y
Display the usb<blah> string in ucom attach messages so grepping
dmesg can be used to find the path to a ucom.
More USB cluebats from kettenis@. Deep hub depths testing from
drahn@.
ok deraadt@ drahn@ kettenis@
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ports.
Suggested by deraadt@, USB route idea from kettenis@. Feedback
from anton@, man page improvements from deraadt@, jmc@,
schwarze@.
ok deraadt@ kettenis@
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remove a line relating to the 2BSD libNS
ok schwarze@
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from josiah frentsos
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ok otto.
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OK guenther@ stsp@ jmc@
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