Fix #80223: imap_mail_compose() leaks envelope on malformed bodies

We have to clean up even on failure.

Closes GH-6322.

Merge branch 'PHP-8.0' into master

* PHP-8.0:
Fix #80220: imap_mail_compose() may leak memory

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix #80220: imap_mail_compose() may leak memory

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #80220: imap_mail_compose() may leak memory

Fix #80220: imap_mail_compose() may leak memory

Unless `topbod` is of `TYPEMULTIPART`, `mail_free_body()` does not free
the `nested.part`; while we could do this ourselves, instead we ju

Fix #80220: imap_mail_compose() may leak memory

Unless `topbod` is of `TYPEMULTIPART`, `mail_free_body()` does not free
the `nested.part`; while we could do this ourselves, instead we just
ignore additional bodies in this case, i.e. we don't attach them in the
first place.

Closes GH-6321.

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Merge branch 'PHP-8.0' into master

* PHP-8.0:
Fix #80215: imap_mail_compose() may modify by-val parameters

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix #80215: imap_mail_compose() may modify by-val parameters

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #80215: imap_mail_compose() may modify by-val parameters

Fix #80215: imap_mail_compose() may modify by-val parameters

We separate the input arrays and all sub-arrays to avoid modification
of the passed parameters.

This should be rewri

Fix #80215: imap_mail_compose() may modify by-val parameters

We separate the input arrays and all sub-arrays to avoid modification
of the passed parameters.

This should be rewritten to use `zend_string`s for the "master" branch.

Closes GH-6316.

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Merge branch 'PHP-8.0' into master

* PHP-8.0:
Fix #80213: imap_mail_compose() segfaults on certain $bodies

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix #80213: imap_mail_compose() segfaults on certain $bodies

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix #80213: imap_mail_compose() segfaults on certain $bodies

Fix #80213: imap_mail_compose() segfaults on certain $bodies

We have to cater to non-associative arrays where the key may be `NULL`;
we just skip these elements.

Closes GH-6315.

Fix [-Wlogical-op] in IMAP

Fix potential mail related segfault on Windows

`rpath` may be `NULL` here, in which case we must not access its
members.

Promote warnings to Error in IMAP extension

Drop some dependencies on argc at the same time

Closes GH-6164

Add proper default values for optional arguments in IMAP

Closes GH-6179

Refactor imap_mail()'s internal implementation to use zend_strings

Merge branch 'PHP-7.4' into master

* PHP-7.4:
Fix memory leak in php_imap_mutf7()

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fix memory leak in php_imap_mutf7()

Fix memory leak in php_imap_mutf7()

We have to free the string which has been allocated by libc-client.

Remove proto comments from C files

Closes GH-5758

Fix [-Wundef] warning in IMAP extension

Generate functions entries from stubs for another set of extensions

Closes GH-5351

Add stubs for aliases

Closes GH-5187