I fell into this trap and tried to switch the syscalls to pass by
the `off_t` by register. I think it makes sense to add a clarifying
comment for future readers of the code, so they don't fall into the
same trap. :^)
This is required for SlavePTY's custom unref handler to function
correctly, as otherwise a SlavePTY held in a File RefPtr would call
the base's (RefCounted<>) unref method instead of SlavePTY's version.
egcc is the alias for the GCC compiler (since OpenBSD uses Clang by
default). Toolchain/BuildIt.sh has the necessary adjustments, but the
compiler check occurs before BuildIt.sh is called.
OpenBSD gzip does not have the -k flag to keep the original after
extraction. Work around this by copying the original gzip to the dest
and then extracting. A bit of a hack, but only needs to be done for the
first-time or rebuilds
OpenBSD provides crypt in libc, not libcrypt. Adjust if/else to check
for either and proceed accordingly
Remove outdated OpenBSD checks when building the toolchain
This fixes a bug, where we mistakenly put a character in the next row if
the cursor was told to move to the rightmost column when it was already
there.
This commit adds the characters used by vim's popup window feature to
draw window borders. Namely:
- U+2550 BOX DRAWINGS DOUBLE HORIZONTAL
- U+2551 BOX DRAWINGS DOUBLE VERTICAL
- U+2554 BOX DRAWINGS DOUBLE DOWN AND RIGHT
- U+2557 BOX DRAWINGS DOUBLE DOWN AND LEFT
- U+255A BOX DRAWINGS DOUBLE UP AND RIGHT
- U+255D BOX DRAWINGS DOUBLE UP AND LEFT
It looks like type types are small enough that there is no padding.
So there didn't happen to be an info leak here, but lets zero initialize
just to be on the safe side, and make auditing easier.
In `sys$accept4()` and `get_sock_or_peer_name()` we were not
initializing the padding of the `sockaddr_un` struct, leading to
an kernel information leak if the
caller looked back at it's contents.
Before Fix:
37.766 Clipboard(11:11): accept4 Bytes:
2f746d702f706f7274616c2f636c6970626f61726440eac130e7fbc1e8abbfc
19c10ffc18440eac15485bcc130e7fbc1549feaca6c9deaca549feaca1bb0bc
03efdf62c0e056eac1b402d7acd010ffc14602000001b0bc030100000050bf0
5c24602000001e7fbc1b402d7ac6bdc
After Fix:
0.603 Clipboard(11:11): accept4 Bytes:
2f746d702f706f7274616c2f636c6970626f617264000000000000000000000
000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000000
0000000000000000000000000000000
In FB_IOCTL_GET_PROPERTIES we were not initializing the padding of the
struct, leading to the potential of an kernel information leak if the
caller looked back at it's contents.
Lets just be extra paranoid and zero initialize all these structs
in we store on the stack while handling ioctls(..).
This patch adds a ptrace based gdb backend, which is then enlightended
to known how to read the serenity i386 registers via ptrace.
This is just a basic implementation to get the port bootstrapped.
Stack regions can't be made volatile, which makes it impossible for
malloc to manage memory that's used for `sigaltstack()`. Let's use mmap
instead.
Co-authored-by: Idan Horowitz <idan.horowitz@gmail.com>
... instead of returning the maximum number of Processor objects that we
can allocate.
Some ports (e.g. gdb) rely on this information to determine the number
of worker threads to spawn. When gdb spawned 64 threads, the kernel
could not cope with generating backtraces for it, which prevented us
from debugging it properly.
This commit also removes the confusingly named
`Processor::processor_count` function so that this mistake can't happen
again.
Since RefCounted automatically calls a method named `will_be_destoyed`
on classes that have one, so there's no need to have a custom
implementation of unref in File.
This will allow File and it's descendants to use RefCounted instead of
having a custom implementation of unref. (Since RefCounted calls
will_be_destroyed automatically)
This commit also removes an erroneous call to `before_removing` in
AHCIPort, this is a duplicate call, as the only reference to the device
is immediately dropped following the call, which in turns calls
`before_removing` via File::unref.
Custody's unref is one of many implementions of ListedRefCounted's
behaviour in the Kernel, which results in avoidable bugs caused by
the fragmentation of the implementations. This commit starts the work
of replacing all custom implementations with ListedRefCounted by
porting Custody to it.
The this value is only supposed to be set via the BindThisValue and
accessed via the GetThisBinding AOs, so exposing a direct getter/setter
would only lead to potentially non-spec-compliant behavior down the
line.
This change moves from wrapping lines at the start to operating on whole
lines and wrapping them as needed.
This has a few added benefits:
- line numbers are now always accurate.
- going to a line actually works
This patch returns an empty Optional<...> instead of an Error for
Core::System::getgrname and Core::System::getpwnam if we can't find a
matching group or user entry.
It also updates the 'chown' utility to support this new behavior.
