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No functional changes.
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No functional changes.
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Similar to POSIX read, the basic read and write functions of AK::Stream
do not have a lower limit of how much data they read or write (apart
from "none at all").
Rename the functions to "read some [data]" and "write some [data]" (with
"data" being omitted, since everything here is reading and writing data)
to make them sufficiently distinct from the functions that ensure to
use the entire buffer (which should be the go-to function for most
usages).
No functional changes, just a lot of new FIXMEs.
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`Stream` will be qualified as `AK::Stream` until we remove the
`Core::Stream` namespace. `IODevice` now reuses the `SeekMode` that is
defined by `SeekableStream`, since defining its own would require us to
qualify it with `AK::SeekMode` everywhere.
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The new name should make it abundantly clear what it does.
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53913
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This also slightly improves error propagation in tar, unzip and zip.
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We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
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Previously this was handled implicitly, as our implementation of Tar
would just stop processing input as soon as it found something invalid.
However, since we now error out as soon as something is found to be
wrong, we require proper handling for zero blocks, which aren't actually
fatal.
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This now also validates the first header that is loaded, so we can drop
the corresponding FIXME from `tar`.
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Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52498
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Fixes this bug that was reported by OSS-Fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52493
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Fixes this bug that was reported by OSS-Fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52862
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Otherwise, we end up propagating those dependencies into targets that
link against that library, which creates unnecessary link-time
dependencies.
Also included are changes to readd now missing dependencies to tools
that actually need them.
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The POSIX.1-1988 limit was 100, but with the ustar prefix field it's 255
(kinda).
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Before this change the behavior was, confusingly:
- never null-terminate if set_field() is passed a StringView.
- which would also not fail if the StringView is too large.
- require null-termination if set_field() is passed a String.
Not only are both of these wrong, having different behavior for those is
very confusing, and creating a String copy to force a type checker to
cause a string to be null-terminated is extremely weird.
The new behavior is to always null-terminate when possible, never
null-terminate if the last byte is used, and always verify that the
string will fit.
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Each of these strings would previously rely on StringView's char const*
constructor overload, which would call __builtin_strlen on the string.
Since we now have operator ""sv, we can replace these with much simpler
versions. This opens the door to being able to remove
StringView(char const*).
No functional changes.
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This commit moves the length calculations out to be directly on the
StringView users. This is an important step towards the goal of removing
StringView(char const*), as it moves the responsibility of calculating
the size of the string to the user of the StringView (which will prevent
naive uses causing OOB access).
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glibc before 2.28 defines major() and minor() macros from sys/types.h.
This triggers a Lagom warning for old distros that use versions older
than that, such as Ubuntu 18.04. This fixes a break in the
compiler-explorer Lagom build, which is based off 18.04 docker
containers.
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This fixes the faulty bit check that misclassified ZIPs as having
data descriptors.
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Since 8209c2b5707db24a8552c6ce8f361f9c49804dec was added the requires
check for copy_characters_to_buffer matched StringViews as well, which
caused unexpected null bytes to be inserted for non null-terminated
fields.
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POSIX specifies that each numeric field is terminated with one or more
space or NUL characters.
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Benefits:
- Braced-initialization prevents unknown narrowing conversions.
- Using designated initializers will result in a compiler error when a
member is skipped or forgotten.
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The directory headers have some common code for reading.
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Problem:
- `memset` is used to initialize data instead of using default
initialization.
Solution:
- Default initialize all member variables.
- Eliminate use of `memset` in favor of C++ braced initialization.
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Problem:
- The getters and setters duplicate code for conversions.
- Getters are returning `const StringView` rather than non-`const`.
Solution:
- Factor out common code to helper functions.
- Return `StringView` as non-`const`.
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