Saves comitters' daily life by avoid #include-ing everything from
internal.h to make each file do so instead. This would significantly
speed up incremental builds.
We take the following inclusion order in this changeset:
1. "ruby/config.h", where _GNU_SOURCE is defined (must be the very
first thing among everything).
2. RUBY_EXTCONF_H if any.
3. Standard C headers, sorted alphabetically.
4. Other system headers, maybe guarded by #ifdef
5. Everything else, sorted alphabetically.
Exceptions are those win32-related headers, which tend not be self-
containing (headers have inclusion order dependencies).
With these macros implemented we can write codes just like we can assume
the compiler being clang. MSC_VERSION_SINCE is defined to implement
those macros, but turned out to be handy for other places. The -fdeclspec
compiler flag is necessary for clang to properly handle __has_declspec().
Integer overflow for unsigned types are fully defined in C. They
are not always problematic (but not always OK). These functions
in this changeset intentionally utilizes that behaviour.
Blacklist from UBSAN checks for better output.
See also: https://travis-ci.org/ruby/ruby/jobs/451624829
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
An instruction is leaf if it has no rb_funcall inside. In order to
check this property, we introduce stack canary which is a random
number collected at runtime. Stack top is always filled with this
number and checked for stack smashing operations, when VM_CHECK_MODE.
[GH-1947]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64677 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (fill_random_bytes_syscall): check if the version macro is
defined, for very old Mac OS X development tools.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64633 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Some old implementaions of arc4random_buf(3) were ARC4 based, or
unsafe when forked, or both. Resort to /dev/urandom for those
known problematic cases. Fix [Bug #15039]
Patch from Thomas Hurst <tom@hur.st>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64625 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (fill_random_bytes_syscall): use SecRandomCopyBytes in
Security framework on macOS 10.7 or later.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (rand_range): moved call of domain_error(), not to
raise an exception in range_values().
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64169 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.ac: clock_gettime or gettimeofday must exist.
* process.c (rb_clock_gettime): prefer clock_gettime over
gettimeofday, as the latter is obsolete in SUSv4.
* random.c (fill_random_seed): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63663 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (fill_random_seed): do not need to be secure, to get
rid of blocking at the start-up time.
[ruby-core:87462] [Bug #14837]
* random.c (random_raw_seed): expected to be a cryptographically
secure, as documented.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63624 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c: [DOC] improve language and RDoc markup in Random.bytes docs;
also adjust call-seq style of Random.bytes and Random#bytes.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63154 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (InitVM_Random): extend Random itself by Formatter
module, as well as the `bytes` method used by the module.
[Feature #4938]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (random_s_bytes): new method Random.bytes, which is
equivalent to Random::DEFAULT.bytes. [Feature #4938]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62497 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
getrandom(2) and read(2) (from /dev/urandom) may return a random buffer
whose length is shorter than required. This change makes sure that they
get enough buffer by using a loop.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61292 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Early failure looks better in this case. Refs [Bugs #13885].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59858 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (get_rnd, try_get_rnd): ensure initialized to get rid
of crash in forked processes. [ruby-core:82100] [Bug #13753]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59368 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c (InitVM_Random): rename Random.raw_seed to
Random.urandom. A quick search seems there are no practical use
of this method than securerandom.rb so I think it's OK to rename
but if there are users of it, this hunk is subject to revert.
* test/ruby/test_rand.rb (TestRand#test_urandom): test for it.
* lib/securerandom.rb (SecureRandom.gen_random): Prefer OS-
provided CSPRNG if available. Otherwise falls back to OpenSSL.
Current preference is:
1. CSPRNG routine that the OS has; one of
- getrandom(2),
- arc4random(3), or
- CryptGenRandom()
2. /dev/urandom device
3. OpenSSL's RAND_bytes(3)
If none of above random number generators are available, you
cannot use this module. An exception is raised that case.
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