Add in missing stat element and fix win32 build

Finish off ftp://'s url_stat support

Route php_stat() via streams/url_stat API (php_stream_stat_path).
This enables fopen-wrappers support on stat() and related family calls.

signed/unsigned compiler warning fixes

kill warnings

Bugfix#25239 Closing control stream while data stream is open violates RFC959 section 2.3

Add resume_pos (resume position) context option for restarting file downloads.

Plug leak in ftp_url_stat

Fix compiler warnings

updating license information in the headers.

Fix warnings.

Implement unlink() method in ftp wrapper ops and do some general cleanup of other code

Setup unlink() method in wrapper_ops structure, implement unlink in plainfiles wrapper, explicitly set method NULL in other wrappers (for now), and rewrite unlink userland function to call into wrapp

Setup unlink() method in wrapper_ops structure, implement unlink in plainfiles wrapper, explicitly set method NULL in other wrappers (for now), and rewrite unlink userland function to call into wrapper_ops

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basename() now binary safe, testcases added

Take STREAMS_CC/STREAMS_DC declarations out of do_connect/do_pasv where they don't need to be. Add minimalist url_stat method to ftp:// wrapper which can at least determine filesize. Other properti

Take STREAMS_CC/STREAMS_DC declarations out of do_connect/do_pasv where they don't need to be. Add minimalist url_stat method to ftp:// wrapper which can at least determine filesize. Other properties set to 0 since the FTP protocol simply doesn't support exploring them. url_stat won't actually work however until ext/standard/filestat.c is patched to allow stat wrappers.

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No idea how that character dissapeared.

Fix error handling bug I just introduced (php_ftp_fopen_connect == NULL) and add append support to wrapper

Abtract some ftp connection/negotiation steps out and add support for stream_opendir. This allows things like opendir('ftp://ftp.foo.com/path')

Feature Request #7121.
Allow overwritting of files via ftp:// wrapper.
Requires context option: $context['ftp']['overwrite'] != 0

- Move https:// and ftps:// wrapper registration into the openssl module.
- Expose the http:// and ftp:// wrappers as PHPAPI
- Remove unused variables

Another big commit (tm).

Main Changes:
- Implement a socket transport layer for use by all code that needs to open
some kind of "special" socket for network or IPC.
- Extension

Another big commit (tm).

Main Changes:
- Implement a socket transport layer for use by all code that needs to open
some kind of "special" socket for network or IPC.
- Extensions can register (and override) transports.
- Implement ftruncate() on streams via the ioctl-alike option interface.
- Implement mmap() on streams via the ioctl-alike option interface.
- Implement generic crypto API via the ioctl-alike option interface.
(currently only supports OpenSSL, but could support other SSL toolkits,
and other crypto transport protocols).

Impact:
- tcp sockets can be overloaded by the openssl capable sockets at runtime,
removing the link-time requirement for ssl:// and https:// sockets and
streams.
- checking stream types using PHP_STREAM_IS_SOCKET is deprecated, since
there are now a range of possible socket-type streams.

Working towards:
- socket servers using the new transport layer
- mmap support under win32
- Cleaner code.

# I will be updating the win32 build to add the new files shortly
# after this commit.

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Fixed bug #22402 (opening of ftp for read/write could fail due to invalid
return code handling).
Solution suggested by jan@jancm.org

Win32 build improvements

A add much more useful select(2) implementation than is provided by
windows sockets. The winsock implementation will only work with sockets;
our implementation works with sockets and file de

A add much more useful select(2) implementation than is provided by
windows sockets. The winsock implementation will only work with sockets;
our implementation works with sockets and file descriptors.
By association, stream_select() will now operate correctly with files, pipes and sockets.

This change required linking against the winsock2 library. In terms of
compatibility, only older versions of windows 95 do not have winsock2
installed by default. It is available as a redistributable file, and is most likely installed by any OS patches (eg: Internet Explorer) applied by the user.

Also, add a win32 compatible pipe test when opening a stream from a pipe. This test will only work on NT, win2k and XP platforms. Without this test, interleaved fread() and select() calls would cause the read buffer to be clobbered. I will be working on a fix for this issue for win9x.

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Added 'x' mode for fopen() used on local files. This mode will create a new
file only if a file does not already exist (O_CREAT|O_EXCL).