Commit graph

9 commits

Author SHA1 Message Date
Justine Tunney
d36d0634db Add automatic TMPDIR setup/teardown to GNU Make
We now guarantee TMPDIR will be defined on a per build rule basis. It'll
be an absolute path. It'll be secure and unique. It'll be rm -rf'd after
the last shell script line in your build rule is executed. If $TMPDIR is
already defined, then it'll be created as a subdirectory of your $TMPDIR
and then replace the variable with the new definition. The Landlock Make
repository will be updated with examples shortly after this change which
shall be known as Landlock Make 1.1.1.

See #530
2022-08-14 02:03:41 -07:00
Justine Tunney
625aa365f1 Refactor pledge() to be more configurable
The earlier iterations did too much guesswork when it came to things
like stderr logging and syscall origin verification. This change will
make things more conformant to existing practices. The __pledge_mode
extension now can be configured in a better way.

There's also a new `-q` flag added to pledge.com, e.g.

    o//tool/build/pledge.com -qv. ls

Is a good way to disable warnings about `tty` access attempts.
2022-08-11 11:35:30 -07:00
Justine Tunney
0277d7d6e9 Rewrite Linux pledge() code so it can be a payload
It's now possible to build our pledge() polyfill as a dynamic shared
object that can be injected into a glibc executable using LD_PRELOAD
2022-08-08 11:41:08 -07:00
Justine Tunney
5546559034 Improve pledge() usability and consistency
- We now kill the program on violations like OpenBSD
- We now print a message explaining which promise is needed
- This change also fixes a linkage bug with thread local storage
- Your sigaction() handlers should now be more thread safe

A new `__pledge_mode` global has been introduced to make pledge() more
customizable on Linux. For example:

    __attribute__((__constructor__)) static void init(void) {
      __pledge_mode = SECCOMP_RET_ERRNO | EPERM;
    }

Can be used to restore our old permissive pledge() behavior.
2022-08-07 16:18:33 -07:00
Justine Tunney
31e4b0867b Pledge and unveil redbean's unit tests 2022-07-23 07:22:19 -07:00
Justine Tunney
7756e27993 Fix GitHub build 2022-07-09 12:00:57 -07:00
Justine Tunney
c9e68b0ebc Make redbean serialization deterministic 2022-07-09 04:09:51 -07:00
Justine Tunney
1c83670229 Write more redbean unit tests
- Fix DescribeSigset()
- Introduce new unix.rmrf() API
- Fix redbean sigaction() doc example code
- Fix unix.sigaction() w/ more than two args
- Improve redbean re module API (non-breaking)
- Enhance Lua with Python string multiplication
- Make third parameter of unix.socket() default to 0
2022-07-08 23:10:02 -07:00
Justine Tunney
fe5c475f83 Add Deflate() / Inflate() to redbean and fix bugs
The Compress() and Uncompress() APIs were a mistake. The functions
themselves work fine, but it's a design blemish and does superfluous
work. Since they were only introduced in the last few weeks, they're now
deprecated and references to them have been scrubbed from the website
and other documentation. Please use the new APIs since the old APIs will
be removed at some point in the future.

This change introduces automated Lua unit tests for the Redbean APIs.
There's a few functions that were broken which have now been fixed, e.g.
Underlong() and Decimate().
2022-07-08 09:47:04 -07:00