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Since '=:=' is cheaper than '==', the compiler tries to replace
'==' with '=:=' if the result of comparison will be the same.
As an example:
V == {a,b}
can be rewritten to:
V =:= {a,b}
since the literal on the right side contains no numeric values
that '==' would compare differently to '=:='.
With the introduction of maps, we will need to take them into
account. Since the comparison of maps is planned to change in 18.0,
we will be very conservative and only do the optimization if
both keys and values are non-numeric.
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* bjorn/compiler/map-bugs/OTP-12451:
Be more careful about map patterns when evalutating element/2
Do not convert map patterns to map expressions
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We must not convert map patterns to map expressions.
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In code such as:
case {a,Map} of
{a,#{}}=T ->
T
end
we must NOT rewrite a map pattern to a map expression like this:
case Map of
#{} ->
{a,#{}}
end
because the pattern '#{}' will match any map, but the expression
'#{}' will construct an empty map.
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* ia/ssl/self-signed-root/OTP-12449:
ssl: Remove selfsigned anchor certificate from the certificate chain
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A selfsigned trusted anchor should not be in the certifcate chain passed to
the certificate path validation.
Conflicts:
lib/ssl/src/ssl_certificate.erl
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* egil/fix-getifaddrs-realloc/OTP-12445:
erts: Fix getifaddrs realloc ptr mismatch
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* egil/fix-child_setup-close/OTP-12446:
erts: Use closefrom() if available when closing fds
erts: Don't close all fds twice in child_setup
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* egil/fix-crashdump-epmd/OTP-12447:
erts: Check driver version before assigning callback
erts: Don't lookup invalid port for crashdump handling
erts: Reserve a file descriptor for the crashdump file
erts: Use emergency close to close epmd
erts: Extend driver interface with emergency_close
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'ia/maint/inets/invalid-content-length/mod_alias_https/consistent_keep_alive_timeout/OTP-12429/OTP-12436' into maint-17
* ia/maint/inets/invalid-content-length/mod_alias_https/consistent_keep_alive_timeout/OTP-12429/OTP-12436:
inets: Consistent view of configuration parameter keep_alive_timeout
inets: httpd - mod_alias now handles https URIs
inets: httpd - Sanity check of content-length header
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When a buffer was exhausted and subsequently a realloc, we could get
an invalid pointer.
For this to occur we would need to have a realloc to lower adresses.
The symptom would be garbage returned from erlang:port_control(Port, 25, [])
(prim_inet:getifaddrs(Port) resulting in a badarg) or a segmentation fault.
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Gracefully handle invalid content-lenght headers instead of
crashing in list_to_integer.
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* 0xAX/inets-typo-fix:
lib/inets: fix typo in httpd_load_test example
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closefrom() was only used in the vfork() case before, now also
used in the fork() case.
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The commit c2b4eab25c907f453a394d382c04cd04e6c06b49 introduced an error
in which child_setup erroneously tried to close all file descriptors twice.
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* s1n4/httpc_invalid_set_cookies/OTP-12430:
httpc: Avoid parsing invalid 'Set-Cookie' headers
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* sverk/port_get_data-race-r16b03/OTP-12208:
erts: Fix port data memory allocation bug
erts: Mend port_set_data with non-immed data for halfword VM
erts: Add test case for port_set_data and port_get_data
erts: Fix race between port_set_data, port_get_data and port termination
erts: Fix erlang:port_set_data/2 for non immediate data
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* marcus/16/fix-rebuild:
Sort keys before generating
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* ia/ssh/sftp-v3-flags:
ssh: Add some more flags
ssh: Correct Sftp flag handling
ssh: Add handling of sftp v3 flags
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* ia/ssl/maint/poddle/OTP-12420:
ssl: Reenable padding check for TLS-1.0 and provide backwards compatible disable option
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* egil/fix-lcnt/OTP-12364:
tools: Fix lcnt printout of histograms
tools: Fix lcnt sort of inspected locks
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Closes all open socket before writing crashdump to file.
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* nox/standard_error/OTP-12424:
Test standard_error
Properly handle broken input in standard_error
Fix io:getopts(standard_error)
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* marcus/rabbe-doc-typos2/OTP-12399:
fix spelling
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disable option
Conflicts:
lib/ssl/src/ssl_cipher.erl
lib/ssl/src/ssl_record.erl
lib/ssl/src/tls_record.erl
lib/ssl/test/ssl_cipher_SUITE.erl
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Function name was somewhat confusing and when trying to find a better
name for it we realised it did not work as intended.
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for non-immediate port data >= sizeof(Eterm)*2 words.
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Always update prt->data with atomic xchg-op.
Check for NULL data to detect racing port terminator.
Use NULL, as THE_NON_VALUE can be a valid pointer on debug VM.
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hsize field was not set leading to VM crash
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* bjorn/compiler/map-pattern/OTP-12414:
core_lib: Handle patterns in map values
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io:put_chars(standard_error, [oops]) could previously crash the
standard_error process.
Reported-by: Alexei Sholik
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Parsing invalid 'Set-Cookie' header would make httpc crash.
This commit filters invalid 'Set-Cookie' headers so that httpc wouldn't try to parse them.
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