Fix GH-12936: hash() function hangs endlessly if using sha512 on strings >= 4GiB

There's two problems:
- Some loops used `unsigned int` instead of `size_t`.
- The 2*N-bit addition th

Fix GH-12936: hash() function hangs endlessly if using sha512 on strings >= 4GiB

There's two problems:
- Some loops used `unsigned int` instead of `size_t`.
- The 2*N-bit addition that is emulated using 2 N bit numbers has a bug:
it first truncated the number to 32/64 bit and only then shifted. This
resulted in the wrong length info stored inside the resulting hash.

Closes GH-12937.

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[skip ci] Fix various typos and grammar issues (#11143)

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |

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hash: Support custom algo parameters

The concrete need on this change is to support passing an initial seed
to the murmur hash. Passing a custom seed is important in terms of
randomi

hash: Support custom algo parameters

The concrete need on this change is to support passing an initial seed
to the murmur hash. Passing a custom seed is important in terms of
randomizing the hash function.

The suggested implementation adds a HashTable parameter to all the
init callbacks. Further on, an array with custom arguments is accepted
from `hash` or `hash_init` from the user land. Currently several things
like `hash_hkdf` are not touched, as they don't need passing custom
args.

Some convenience macros have been added to the SHA/MD families of
functions, so the consuming code doesn't have to be changed widely.

Another way to implement this is to add another type of the init that
would accept a HT with arguments. However, that would still require
touching all the context structs in all the algos. That would also
increase the size of those structs. As an init function is called just
once, the way of modifying the existing init callback has been seen
as more preferrable.

Closes GH-6400.

Signed-off-by: Anatol Belski <ab@php.net>
Co-Developed-by: Nikita Popov <nikita.ppv@googlemail.com>
Signed-off-by: Nikita Popov <nikita.ppv@googlemail.com>
Acked-by: Michael Wallner <mike@php.net>
Reviewed-by: Máté Kocsis <kocsismate@woohoolabs.com>
Reviewed-by: Eddie Kohler <ekohler@gmail.com>

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Make HashContexts serializable.

* Modify php_hash_ops to contain the algorithm name and
serialize and unserialize methods.

* Implement __serialize and __unserialize magic meth

Make HashContexts serializable.

* Modify php_hash_ops to contain the algorithm name and
serialize and unserialize methods.

* Implement __serialize and __unserialize magic methods on
HashContext.

Note that serialized HashContexts are not necessarily portable
between PHP versions or from architecture to architecture.
(Most are, though Keccak and slow SHA3s are not.)

An exception is thrown when an unsupported serialization is
attempted.

Because of security concerns, HASH_HMAC contexts are not
currently serializable; attempting to serialize one throws
an exception.

Serialization exposes the state of HashContext memory, so ensure
that memory is zeroed before use by allocating it with a new
php_hash_alloc_context function. Performance impact is
negligible.

Some hash internal states have logical pointers into a buffer,
or sponge, that absorbs input provided in bytes rather than
chunks. The unserialize functions for these hash functions
must validate that the logical pointers are all within bounds,
lest future hash operations cause out-of-bounds memory accesses.

* Adler32, CRC32, FNV, joaat: simple state, no buffer positions
* Gost, MD2, SHA3, Snefru, Tiger, Whirlpool: buffer positions
must be validated
* MD4, MD5, SHA1, SHA2, haval, ripemd: buffer positions encoded
bitwise, forced to within bounds on use; no need to validate

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Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Remove duplicate md5/sha1 implementation

This code was actually unused since its introduction, and since at
least the md5 implementation in the core was completely overhauled,
we're

Remove duplicate md5/sha1 implementation

This code was actually unused since its introduction, and since at
least the md5 implementation in the core was completely overhauled,
we're dropping the md5 and sha1 related stuff from ext/hash.

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Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Remove yearly range from copyright notice

Remove year range from copyright notice

Second round of fixing compiler warnings in ext/hash. Lots of the signatures that previously was unsigned int is now size_t, there was a fair bit of inconsistency there already and this commit should

Second round of fixing compiler warnings in ext/hash. Lots of the signatures that previously was unsigned int is now size_t, there was a fair bit of inconsistency there already and this commit should make it all sync nicely

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Revert "Fix compiler warnings in ext/hash"

This reverts commit 596fbf7393777cb14006813111875db5b0a21d3b.

Fix compiler warnings in ext/hash

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Avoid double copying and string length recalculation

year++

year++

year++

Disallow non-crypto hashes in HMAC and PBKDF2

For this purpose add is_crypto flag to php_hash_ops.

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

Replace usage of php_hash_uint32 and php_hash_uint64 with uint32_t and uint64_t.

Remove the unused php_hash_int32 and php_hash_int64.

Happy new year (Update copyright to 2016)

int -> size_t