curl is used in command lines or scripts to transfer data. It is also used in
cars, television sets, routers, printers, audio equipment, mobile phones,
tablets, settop boxes, media players and is the internet transfer backbone for
thousands of software applications affecting billions of humans daily.
It supports DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS, LDAP,
LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, Telnet and
TFTP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP
form based upload, proxies, HTTP/2, cookies, user+password authentication
(Basic, Plain, Digest, CRAM-MD5, NTLM, Negotiate and Kerberos), file transfer
resume, proxy tunneling and more.
===> The following configuration options are available for curl-8.22.0:
ALTSVC=on: HTTP Alternative Services support
COOKIES=on: Cookies support
DEBUG=off: Build with debugging support
DOCS=on: Build and/or install documentation
EXAMPLES=on: Build and/or install examples
IDN=on: International Domain Names support
IPV6=on: IPv6 protocol support
LIBUV=off: Event-based tests
NTLM=on: NTLM authentication support
PROXY=on: Proxy support
PSL=on: Public Suffix List support
STATIC=on: Build static executables and/or libraries
====> Compression methods
BROTLI=on: Brotli compression support
ZSTD=on: Zstandard compression support
====> Transmission protocols
DICT=on: DICT (RFC 2229) support
FTP=on: FTP protocol support
GOPHER=on: Gopher protocol support
HTTP=on: HTTP/HTTPS support
HTTP2=on: HTTP/2 support (requires HTTP)
IMAP=on: IMAP/IMAPS support
IPFS=on: IPFS support
LDAP=off: LDAP protocol support
LDAPS=off: LDAP protocol over SSL support (requires GNUTLS/OPENSSL/WOLFSSL)
LIBSSH=off: SCP/SFTP support via libssh (requires OPENSSL)
LIBSSH2=on: SCP/SFTP support via libssh2 (requires OPENSSL)
MQTT=on: MQTT support
POP3=on: POP3/POP3S support
RTSP=on: Real Time Streaming Protocol (RTSP) support
SMB=on: SMB/CIFS support
SMTP=on: SMTP/SMTPS support
TELNET=on: Telnet support
TFTP=on: TFTP support
WEBSOCKET=on: WebSocket protocol support
====> GSSAPI Security API support: you have to select exactly one of them
GSSAPI_BASE=on: GSSAPI support via base system (needs Kerberos)
GSSAPI_MIT=off: GSSAPI support via security/krb5
GSSAPI_NONE=off: Disable GSSAPI support
====> DNS resolving options: you have to select exactly one of them
CARES=off: Asynchronous DNS resolution via c-ares
THREADED_RESOLVER=on: Threaded DNS resolver
====> SSL protocol support: you can only select none or one of them
GNUTLS=off: SSL/TLS support via GnuTLS
OPENSSL=on: SSL/TLS support via OpenSSL
WOLFSSL=off: SSL/TLS support via wolfSSL
===> Use 'make config' to modify these settings
