4 through 7. The Send-MailMessage cmdlet sends an email message from within PowerShell. dll is either not designed to run on Windows or it cont. Ask Question Asked 3 years, 7 months ago. 29 slow on dns resolution Description libcurl adds ~ 150ms latency on each request compared to the version delivered in CentOS 6, or the one from Fedora 21 (7. Description. Other tools are able to resolve the. development files and documentation for libcurl (GnuTLS flavour) libcurl4-nss-dev. A Simple to use yet efficient headers only library ( wrapped over libcurl / curl wrapper ) to do browser emulation (emulate) or web interaction in C++. Multi and share interfaces. 1 Required tools; 3. You can ask libcurl to use more than one method, and when doing so, you imply that curl first tries the request without any authentication at all and then based on the HTTP response coming back, it selects one of the methods that both the server and your application allow. We have provided these links to other web sites because they may have information that would be of interest to you. It's the library equivalent of chmod 777 "just until I get it working". The cURL Manager: cURL for Windows with automatic upgrades and special sftp features. In the libcURL examples, they only have examples of doing a PUT request with a FILE. For clarification or corrections please contact the Oracle Linux ULN team. When cURL connects to a remote server via HTTPS, it will obtain the remote server certificate, then check against its CA certificate store the validity of the remote server to ensure the remote server is the one it claims. 4 For projects that support PackageReference , copy this XML node into the project file to reference the package. GitHub Gist: instantly share code, notes, and snippets. You must be subscribed before you post, as otherwise your mail will simply be silently discarded. 1 which resolves the following vulnerabilities:. (CC'ing libcurl list as an FYI. View the Project on GitHub jpbarrette/curlpp. Curl is an open source command line tool and library for transferring data with URL syntax. The real info, though, is located in the libcurl documentation, most important being curl_easy_setopt. Speed - libcurl is very fast and PycURL, being a thin wrapper above libcurl, is very fast as well. dll will be executed on your PC. gov is configured to support TLSv1. Changes are a leading cause of outages, performance slowdowns, falling out of compliance, and gaps in security. This list gets nothing but announcements for new releases of curl and libcurl. so - 리눅스; libcurl. Building the libraries on windows with Visual studios using the /MT and /MTd flags is non-trivial. PycURL supports most of libcurl's callbacks. By using the appropriate options to curl_easy_setopt, you can change libcurl's behavior. A second vulnerability could allow an attacker to make an application using Libcurl that accesses a specially crafted URL using an HTTP proxy. el6 base Libcurl 7. For reference, here's how to use autotools. Transmission Support and Development 1. It was found that libcurl did not safely parse FTP URLs when using the CURLOPT_FTP_FILEMETHOD method. CURLOPT_POST is wrongly used there. https_proxy and libcurl. could you please let me know the reason, i am using Oracle virtual box. Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Supported protocols include FTP, FTPS, HTTP, HTTPS, File, Gopher, Telnet, DICT, and. git-remote-https. This is not a real mirror, it is just a https proxy to the US mirror. What both commands do. 동적 라이브러리 파일 명은 OS 별로 다음과 같다. 04 LTS, so that any reference to CURL_OPENSSL_3 now reads CURL_OPENSSL_4. cURL and libcurl. Build libcurl from source ( curl: (48) An unknown option was passed in to libcurl ) After I build curl from source(On my ubuntu 12. Note that if you are using curl_httpclient, it is highly recommended that you use a recent version of libcurl and pycurl. See below for a list of other CRAN servers that support https. If libcurl fails to parse that line, this return code is passed back. It supports various protocols include FTP, FTPS, HTTP, HTTPS, GOPHER, TFTP, SCP, SFTP, TELNET, DICT, LDAP, LDAPS, FILE, IMAP, SMTP, POP3, RTSP, and RTMP. 04 machine), when I test curl like. Libcurl versions 7. Libcurl: List of all products, security vulnerabilities of products, cvss score reports, detailed graphical reports, vulnerabilities by years and metasploit modules related to products of this vendor. dll, File description: libcurl-4. Download the latest version of libcurl. Certainly curl can be set up to handle these automatically, but there may be cases where the application might want to handle them itself. a, an include folder with curl. Transmission Support and Development 1. Search the database of DLL‑files. Developer The curl library httpscurl. How to use libcurl. In order to use PHP's cURL functions you need to install the » libcurl package. The latest Tweets from Eugene Petrenko (@jonnyzzz). I want to download a file by libcurl but I got. dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s. development files and documentation for libcurl (GnuTLS flavour) libcurl4-nss-dev. 2 or later and versions 7. Go to the previous site to read in my language Stay here and read in English. Note that LibCurl comes with SSL libraries included and hence you need not to install any extra packages. exe, found it in C:\Program Files\GDAL and deleted it. 1源码文件夹，接着把build_libcurl_dist. Looking at the sources, it seems like libcurl can use both cmake and autotools. It is used in command lines or scripts to transfer data. Created to be an easy way to make REST resources available from C++ applications. The curl project mostly provides source packages. Implementing Web Sockets With cURL. The curl package provides bindings to the libcurl C library for R. We are keen to hear your feedback on this release, so please let us know what you think at feedback. If libcurl fails to parse that line, this return code is passed back. By selecting these links, you will be leaving NIST webspace. I am the author and maintainer of cURL and libcurl. This was built to make it easier for testing HTTP/2 support in something I was working on and thought it might be useful for others. The test script causes segmentation fault in libcurl. exe libcurl-4. As you've seen, cURL and several other command-line tools can be used to easily interact with Google Data services using raw XML and HTTP. libcurl also supports HTTPS certificates, HTTP POST, HTTP PUT, FTP uploading (this can also be done with. Go to the previous site to read in my language Stay here and read in English. When cURL connects to a remote server via HTTPS, it will obtain the remote server certificate, then check against its CA certificate store the validity of the remote server to ensure the remote server is the one it claims. By selecting these links, you will be leaving NIST webspace. a and a include folder, how do I use these things to link to my program if the above wasn't correct?. For NTLM to work, it needs a name and password (and a little more) and libcurl thus needs to get the name and password passed to it. If an application uses libcurl. The above is also available at following https site 0509-022 Cannot load module /usr/lib/libcurl. None of the currently available CRAN servers seems to support https, so I created a demo server at https://cran. Sorry for the inconvenience. Use the following command to know more about #curl. The NuGet Team does not provide support for this client. net has an introduction for Transmission on Macs. Installation. 来自HeroKu的HTTP API 设计指南(中文版)发布于 10月11日 13:32 使用Jtopo创建一个图形拓扑显示（2）:自动布局发布于 09月11日 14:32. A HTTP request is what curl sends to the server when it tells the server what to do. If you are a new customer, register now for access to product evaluations and purchasing capabilities. On libcurl, OpenSSL, and thread-safety The cURL project with its libcurl is a frequent choice of developers requiring a feature-rich HTTP client. By using the same parser, security problems due to different interpretations can be avoided. dll we uploaded that to virus total and got hit on 9 of 68 engines This dW Answers question is about an IBM document with the Title: Release of WinCollect Agent 7. I suspect that if you run `yum --showduplicates list libcurl\*` then you will find duplicate versions of those packages across, e. Hi, I was experimenting using nginx as forward proxy with the conf as attached. Several options are set: libcurl is instructed not to cache DNS entries, and not to allow re-use of HTTP connections; libcurl is given a 10 second timeout for connection and for the entire transaction. None of the currently available CRAN servers seems to support https, so I created a demo server at https://cran. You must be subscribed before you post, as otherwise your mail will simply be silently discarded. I have homework where I need somehow to compare two HTTP responses. Have a look at the source code on github: https://github. /configure --with-ssl but it still installs it without SSL. Hi All, How do I enable ssl in libcurl? You Can see below what happens when i run curl, also see that in my phpinfo page ssl is set to no and https is not listed under protocols. cURL and libcurl. org #libssh2 ; Bugs: github issue tracker. 0 OpenSSL/1. For instance, a faulty application, libcurl. Unpack and follow the readme (which should explain how to build a lib file). But requiring all of this means that curl has incompatibly changed with the switch to nss. A HTTP request contains a method, a path, HTTP version and a set of request headers. Extract the \lib and \include folders to a convenient location. This repair tool is designed to diagnose your Windows PC problems and repair them quickly. There are also the libcurl-easy(3) man page, the libcurl-multi(3) man page, the libcurl-share(3) man page and the libcurl-tutorial(3) man page for in-depth understanding on how to program with libcurl. This was built to make it easier for testing HTTP/2 support in something I was working on and thought it might be useful for others. 0, libcurl offers an API for parsing, updating and generating URLs. libcurl and https. If you'd like to try it out, first make sure your curl is compiled with SSL support, e. using libcurl in c program how can I consume webservices. 1, and TLSv1. ** SSL Support - https requests with basic certificate and handshake information ** Keeps a history of URLs tested with HEADER and POST data and provides them in a dropdown for easy repeated testing ** Simulates curl, iPhone, iPad, Safari, IE, Chrome and custom user-agent browsers ** Simple single-view interface with realtime result screen. UWP --version 1. The curl author writes in the linked article that Google has a right to do this both morally and legally. Features including multiple protocol support, SSL, authentication and proxy options. Hi guys, I need to parse JSON data from an HTTPS protocol so I downloaded and integrated libcurl into. How to download a file by libcurl. Need access to an account? If your company has an existing Red Hat account, your organization administrator can grant you access. Hi All, How do I enable ssl in libcurl? You Can see below what happens when i run curl, also see that in my phpinfo page ssl is set to no and https is not listed under protocols. You can do this when. For instance, a faulty application, libcurl-4. cURLpp is a C++ wrapper for libcURL. 29 slow on dns resolution Description libcurl adds ~ 150ms latency on each request compared to the version delivered in CentOS 6, or the one from Fedora 21 (7. tlb is used to access it, I think. I must say, this project is AWESOME! I have been using it for years to retrieve data from the internet (including projects to log into webpages). For example, a GMT test that has a command like this no longer. dll has been deleted or misplaced, corrupted by malicious software present on your PC or a damaged Windows registry. Source Archives. The above is also available at following https site 0509-022 Cannot load module /usr/lib/libcurl. Other websites may not be as well-warded as ours, so please use your best judgement when clicking on unknown links. Protocol “https” not supported or disabled in libcurl. Send a DELETE request using curl command Written by Guillermo Garron Date: 2012-05-27 17:35:00 00:00. rpmforge and epel. dll 32 bit with SSL support; 3. Libcurl is a free, open source library for transferring data. hebrerillo. Previous chapters talked about regular POST and multipart formpost, and in your typical command lines you do them with -d or -F. See how to download a URL and print the result to standard output in our simple commandline program. I have just started c++. log, which will show the details of the checking if libcurl supports https test (most likely via an attempt to compile a given program). Speed - libcurl is very fast and PycURL, being a thin wrapper above libcurl, is very fast as well. Note that if you are using curl_httpclient, it is highly recommended that you use a recent version of libcurl and pycurl. If you start the software The cURL library on your PC, the commands contained in libcurl. 0+ Installation Instructions. There are also the libcurl-easy(3) man page, the libcurl-multi(3) man page, the libcurl-share(3) man page and the libcurl-tutorial(3) man page for in-depth understanding on how to program with libcurl. Any alternative solution?. The second one (/usr/local/bin) is from custombuild install. A quick google found this curl FAQ on troubleshooting this problem. As you've seen, cURL and several other command-line tools can be used to easily interact with Google Data services using raw XML and HTTP. GitHub Gist: instantly share code, notes, and snippets. The archive contains a lib folder with libcurl. You can ask libcurl to use more than one method, and when doing so, you imply that curl first tries the request without any authentication at all and then based on the HTTP response coming back, it selects one of the methods that both the server and your application allow. curl A command line tool and library for transferring data with URL syntax, supporting HTTP, HTTPS, FTP, FTPS, GOPHER, TFTP, SCP, SFTP, SMB, TELNET, DICT, LDAP, LDAPS. The RCurl Package. By tricking an unsuspecting user into connecting to a malicious IMAP server, an attacker could exploit this flaw to potentially cause information disclosure or crash the application. References to Advisories, Solutions, and Tools. Using the libcurl easy API you want to download a file using HTTP GET. The requisite code to add to. Download latest version of Youtube component for foobar2000. I have been unable to clone via http proxy because of a wrongly configured proxy setup in my lab. There are also the libcurl-easy(3) man page, the libcurl-multi(3) man page, the libcurl-share(3) man page and the libcurl-tutorial(3) man page for in-depth understanding on how to program with libcurl. These vulnerabilities enable an attacker to use malicious userspace processes to read kernel memory, and malicious code in guests to read hypervisor memory. 2 Building libcurl static library for DMD32 Windows. Antonyms for Libcurl. The above is also available at following https site 0509-022 Cannot load module /usr/lib/libcurl. PHP/cURL: The module for PHP that makes it possible for PHP programs to use libcurl. Hi everyone! I am having problems trying to use libcurl with https support. Why do I get "Protocol http not supported or disabled in libcurl"? Protocol "http" not supported or disabled in libcurl, https: //download. com to download your missing DLL file. Welcome to Moodle in English! Installing and upgrading help. The libcurl tutorial also provides a lot of useful information. If an application uses libcurl. cURL for Windows is an MSI installer for cURL, the popular command-line web transfer tool. Error: Error: curl: (1) Protocol " https" not supported or disabled in libcurl. It should be set to 0 or 1 only. libcurl free download. Fedora i386: libcurl-7. High Performance Libcurl Tips. I have an application that successfully retrieves and parses json data using libcurl. Awesome; I'd much rather have that conflict resolved officially. Sorry for the inconvenience. : CVE-2009-1234 or 2010-1234 or 20101234). I switched to Nextcloud 12. Have a look at the source code on github: https://github. A second vulnerability could allow an attacker to make an application using Libcurl that accesses a specially crafted URL using an HTTP proxy. The package supports retrieving data in-memory, downloading to disk, or streaming using the R “connection” interface. We have provided these links to other web sites because they may have information that would be of interest to you. Description: ----- Copied handle yielded by curl_copy_handle() with new option CURLOPT_HTTPHEADER crashes while curl_multi_exec() running. The library API is written in C, but there are various C++ wrappers on top of it. Description. 1 which resolves the following vulnerabilities:. A HTTP request contains a method, a path, HTTP version and a set of request headers. Install and configure Samba to share files across a network. CUrl and libCUrl is a very powerful library for sending HTTP and HTTPS requests to servers. It is useful for network communication where trivial-http is too trivial. PHP supports libcurl, a library created by Daniel Stenberg, that allows you to connect and communicate to many different types of servers with many different types of protocols. This is a known issue in the Xcode 7 beta. Using the libcurl easy API you want to download a file using HTTP GET. dll Repair Tool. I know this is a possibility, but I would think it is more likely to be another app, or curl, or something that would cause this. Learn how to use curl. com to download your missing DLL file. It gives insights to possible web security flaws, their behavior and approaches that can be taken to exploit them. When libcurl connects to an FTP server and successfully logs in (anonymous or not), it asks the server for the current directory with the `PWD` command. It should be set to 0 or 1 only. 1 Required tools; 2. 5 or older, follow the instructions below - they do not apply if using MozillaBuild with msys, they assume the use of cygwin; Note that MOZCONFIG is not used for LDAP C SDK builds, so it is safe to leave it unset. Perl6 LibCurl. The NuGet client tools provide the ability to produce and consume packages. 3 or libcurl. If libcurl fails to parse that line, this return code is passed back. com Illegal Instruction % echo $? 132 This is affecting some servers, but apparently not 100%. ** SSL Support - https requests with basic certificate and handshake information ** Keeps a history of URLs tested with HEADER and POST data and provides them in a dropdown for easy repeated testing ** Simulates curl, iPhone, iPad, Safari, IE, Chrome and custom user-agent browsers ** Simple single-view interface with realtime result screen. The NuGet Gallery is the central package repository used by all package authors and consumers. To write a binary post program, the sequence is as follows: libcurl: post binary data to server. Virtual Package: libcurl-dev This is a virtual package. You could use --libcurl sample. 2 Building curl_static_dmc. The most concise screencasts for the working developer, updated daily. CURLE_FTP_CANT_GET_HOST (15). How to use libcurl. I could have screwed up or mismatched the versions of these. Check out our full HTTP documentation to learn about everything you can do with the API. Building the libraries on windows with Visual studios using the /MT and /MTd flags is non-trivial. This is not a real mirror, it is just a https proxy to the US mirror. Hello, I need to know how to use libcurl to retreive the contents of a url. application using libcurl to access a specially crafted URL via an HTTP proxy could use this flaw to inject additional headers to the request or construct additional requests. The test script causes segmentation fault in libcurl. Other websites may not be as well-warded as ours, so please use your best judgement when clicking on unknown links. 예를 들어, 응용 프로그램에 결함이 있거나, libcurl. Learn how to use curl. dll file is a dynamic link library for Windows 10, 8. Click one of the first links to download the source. simplehelp. dll download. Sometimes the file upload fails with HTTP 500 Errors. slapt-get is an APT-like package management system for Slackware. Developer advocacy, open source, blogger, speaker. CUrl and libCUrl is a very powerful library for sending HTTP and HTTPS requests to servers. Packages providing libcurl-dev. This server hosts RPMS pkgs git repositories, as well as other sub-projects. c-ares is a C library for asynchronous DNS requests (including name resolves). https-not-supported-or-libcurl. You can ask libcurl to use more than one method, and when doing so, you imply that curl first tries the request without any authentication at all and then based on the HTTP response coming back, it selects one of the methods that both the server and your application allow. dll The procedure entry point SSL_CTX_set_alpn_protos could not be located in the dll Greg Lindstrom Dec 07, 2015 I installed SourceTree 1. Hi guys, I need to parse JSON data from an HTTPS protocol so I downloaded and integrated libcurl into. For an SSL encrypted web server you will need a few things. The Libcurl. Protocol https not supported or disabled in libcurl If this is your first visit, be sure to check out the FAQ by clicking the link above. And to work with threads i need a function that call each thread, and this function takes as argument the filename to download. 0) and its SSL backend ("SecureTransport") do not support custom handling of certificates. 1 Required tools; 3. 4, whereas many distributions include a version of curl that provides libcurl. 0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. git 은 https 로 연결시 내부적으로 curl 의 라이브러리인 libcurl 을 사용하여 연결하는데 사용하는 동적 라이브러리가 https 를 지원하지 않는 버전이라 발생한다. In this post we'll use LibCurl to download a webpage over HTTPS protocol. Note that LibCurl comes with SSL libraries included and hence you need not to install any extra packages. 04 LTS, so that any reference to CURL_OPENSSL_3 now reads CURL_OPENSSL_4. It's the library equivalent of chmod 777 "just until I get it working". The NuGet client tools provide the ability to produce and consume packages. 2 Building curl_static_dmc. LibreOffice CMIS server connection feature suffered a severe disease since the begining: it was not able to connect to servers using HTTPS. Re: [SOLVED] Protocol https not supported or disabled in libcurl Ok, feel really stupid, that was my problem, should not have done that part of the guide. It is helpful to be as descriptive as possible when asking your questions. 3 or libcurl. I have checked the curl version and libcurl on hosts respectively, and they are all same. libcurl seemed to be the perfect answer. That could be, though I have looked into that and have not seen anything running that I have not put in place or anything else weird. git-remote-https. Some PHP programs even say they use 'libcurl' when they in fact use this binding. Packages providing libcurl-dev. HTTP with libcurl. I could have screwed up or mismatched the versions of these. All options are set with the option followed by a parameter. Making https get with libcurl. To find out which protocols are supported and which are not, I checked the curl version using command:. 25 on my work computer this morning (fresh install). If you are a new customer, register now for access to product evaluations and purchasing capabilities. The Community Edition of IBM ILOG CPLEX Optimization Studio on Windows platform only has addressed the following vulnerability: libcurl is vulnerable to a denial of service. By continuing to use this site, you are consenting to our use of cookies. The curl() and curl_download() functions provide highly configurable drop-in replacements for base url() and download. HTTP Requests. C89 compatibility, MIT licensed, builds for and runs on POSIX, Windows, Netware, Android and many more operating systems. cURL supports HTTPS and performs SSL certificate verification by default when a secure protocol is specified such as HTTPS. git - How do I enable https support in libcurl? When I try to $ brew update I'm getting the error: error: Protocol https not supported or disabled in libcurl while. cURL is a command line tool for transferring files with URL syntax. A lot of users are reporting problems with CurlFtpFS. The --libcurl command-line option will create a C program in the provided file name. 1 Required tools; 2. libcurl and https. Author knows what to do. See how to download a URL and print the result to standard output in our simple commandline program. libcurl also supports HTTPS certificates, HTTP POST, HTTP PUT, FTP uploading (this can also be done with. Several options are set: libcurl is instructed not to cache DNS entries, and not to allow re-use of HTTP connections; libcurl is given a 10 second timeout for connection and for the entire transaction. libcurl failed to get a sensible result back from the server as a response to either a PASV or a EPSV command. git-remote-https. libcURL is described as:. Currently the minimum supported version of libcurl is 7. It is used in command lines or scripts to transfer data. Speed - libcurl is very fast and PycURL, being a thin wrapper above libcurl, is very fast as well. libcurl is a free and easy-to-use client-side URL transfer library, supporting DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, Telnet and TFTP. dll Errors related to libcurl-4. cURL and libcurl. And to work with threads i need a function that call each thread, and this function takes as argument the filename to download. 2 Building libcurl. 0, Released on the 11th of September 2019. This allows us to download files from Web servers, post forms, use HTTPS (the secure HTTP), use persistent connections, upload files, use binary content, handle redirects, password authentication, etc. By tricking an unsuspecting user into connecting to a malicious IMAP server, an attacker could exploit this flaw to potentially cause information disclosure or crash the application. Using libcurl, our crawling infrastructure is. dll - 윈도; libcurl. In fact, you could watch nonstop for days upon days, and still not see everything!. SecurityFocus is designed to facilitate discussion on computer security related topics, create computer security awareness, and to provide the Internet's largest and most comprehensive database of computer security knowledge and resources to the public. 0, and the minimum version of pycurl is 7. (CVE-2017-1000257). libcurl is told to bind to a specific interface so all traffic is done over that interface. (CVE-2019-5436 )An integer overflow in curl's URL API results in a buffer overflow in libcurl. When libcurl connects to an FTP server and successfully logs in (anonymous or not), it asks the server for the current directory with the `PWD` command. Hi everyone! I am having problems trying to use libcurl with https support. I want to download a file by libcurl but I got. PycURL was benchmarked to be several times faster than requests. One possibility might be when https:// is in use with client authentication, and a completely new certificate chain is needed for the target of the 301 / 302 result. x64 --version 1. 4, whereas many distributions include a version of curl that provides libcurl. a free and easy-to-use client-side URL transfer library, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP. Everything curl is a detailed and totally free book available in several formats, that explains basically everything there is to know about curl, libcurl and the associated project. Awesome; I'd much rather have that conflict resolved officially. Even the best change management processes can't keep all unauthorized changes from occurring to your servers' configurations. 3 and Apache2. - dgnuff Jan 13 at 1:55. RPM builds of AWX - Ansible Tower Community v. It scans your PC , identifies the problem areas and fixes them completely. Regular http requests were passed fine. curl offers a busload of useful tricks like proxy support, user authentication, FTP upload, HTTP post, SSL connections, cookies, file transfer resume, Metalink, and more. 0-4+deb8u11_amd64. I've been looking for a cross-platform HTTP library for my project, and libcurl seems to be the best choice. It’s not possible to display the exact statistics from the summary data in an Insights or APM dashboard currently, but you can display the related metrics for recent time periods, either by using a metric chart (closer match, but requires at least a 30 minute timeframe) or an event-based query (allows a shorter timeframe, but may not match the metric as closely). You could always run VMWare on your Windows 10 PC (I certainly didn't have a problem with it!!) -- what you couldn't do is run it at the same time as something else that was using the vt ring. curl in the Package Tracking System; libcurl versions from 7. The above is also available at following https site 0509-022 Cannot load module /usr/lib/libcurl. a free and easy-to-use client-side URL transfer library, supporting FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE and LDAP. dll can arise for a few different different reasons. dll written in C, the VB6 wrapper code is in the file VBLibCurl. By default libcurl will accept all protocols it supports.