Warning: this will make existing curl command lines that use metalink to
stop working.
Reasons for removal:
1. We've found several security problems and issues involving the
metalink support in curl. The issues are not detailed here. When
working on those, it become apparent to the team that several of the
problems are due to the system design, metalink library API and what
the metalink RFC says. They are very hard to fix on the curl side
only.
2. The metalink usage with curl was only very briefly documented and was
not following the "normal" curl usage pattern in several ways, making
it surprising and non-intuitive which could lead to further security
issues.
3. The metalink library was last updated 6 years ago and wasn't so
active the years before that either. An unmaintained library means
there's a security problem waiting to happen. This is probably reason
enough.
4. Metalink requires an XML parsing library, which is complex code (even
the smaller alternatives) and to this day often gets security
updates.
5. Metalink is not a widely used curl feature. In the 2020 curl user
survey, only 1.4% of the responders said that they'd are using it. In
2021 that number was 1.2%. Searching the web also show very few
traces of it being used, even with other tools.
6. The torrent format and associated technology clearly won for
downloading large files from multiple sources in parallel.
Cloes #7176
Reported by the new script 'scripts/copyright.pl'. The script has a
regex whitelist for the files that don't need copyright headers.
Removed three (mostly usesless) README files from docs/
Closes#5141
Commit efc696a2e0 renamed persistant.c to persistent.c to
fix the typo in the name, but missed to update the OpenVMS package
files which still looked for the old name.
Closes#3217
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Viktor Szakats <commit@vszakats.net>
lib/setup-vms.h : VAX HP OpenSSL port is ancient, needs help.
More defines to set symbols to uppercase.
src/tool_main.c : Fix parameter to vms_special_exit() call.
packages/vms/ :
backup_gnv_curl_src.com : Fix the error message to have the correct package.
build_curl-config_script.com : Rewrite to be more accurate.
build_libcurl_pc.com : Use tool_version.h now.
build_vms.com : Fix to handle lib/vtls directory.
curl_gnv_build_steps.txt : Updated build procedure documentation.
generate_config_vms_h_curl.com :
* VAX does not support 64 bit ints, so no NTLM support for now.
* VAX HP SSL port is ancient, needs some help.
* Disable NGHTTP2 for now, not ported to VMS.
* Disable UNIX_SOCKETS, not available on VMS yet.
* HP GSSAPI port does not have gss_nt_service_name.
gnv_link_curl.com : Update for new curl structure.
pcsi_product_gnv_curl.com : Set up to optionally do a complete build.
Update the packages/vms/readme file to be current.
Also some files for the GNV based build were either missing or needed an
update.
curl_crtl_init.c is a special file that is run before main() to
set up the proper C runtime behavior.
generate_vax_transfer.com generates the VAX transfer vector modules from
the gnv_libcurl_symbols.opt file.
gnv_conftest.c_first is a helper file needed for configure scripts to
come up with the expected answers on VMS.
gnv_libcurl_symbols.opt is the public symbols for the libcurl shared
image.
gnv_link_curl.com builds the shared libcurl image and rebuilds other
programs to use it.
macro32_exactcase.patch is a hack to make a local copy of the VMS Macro32
assembler case sensitive, which is needed to build the VAX transfer modules.
report_openssl_version.c is a tool for help verify that the libcurl
shared image is being built for a minium version of openssl.
