- multiple file upload on a single command line
- custom maximum transfer rate
- redirectable stderr
+ - metalink support (*13)
-libcurl supports
+libcurl
- full URL syntax with no length limit
- custom maximum download time
- custom least download speed acceptable
- custom output result after completion
- guesses protocol from host name unless specified
- uses .netrc
- - progress bar/time specs while downloading
+ - progress bar with time statistics while downloading
- "standard" proxy environment variables support
- compiles on win32 (reported builds on 40+ operating systems)
- selectable network interface for outgoing traffic
- IPv6 support on unix and Windows
- - persistant connections
- - socks5 support
- - supports user name + password in proxy environment variables
+ - persistent connections
+ - socks 4 + 5 support, with or without local name resolving
+ - supports user name and password in proxy environment variables
- operations through proxy "tunnel" (using CONNECT)
- - supports large files (>2GB and >4GB) both upload/download
- - replacable memory functions (malloc, free, realloc, etc)
+ - support for large files (>2GB and >4GB) during upload and download
+ - replaceable memory functions (malloc, free, realloc, etc)
- asynchronous name resolving (*6)
- both a push and a pull style interface
+ - international domain names (*11)
HTTP
- HTTP/1.1 compliant (optionally uses 1.0)
- POST
- Pipelining
- multipart formpost (RFC1867-style)
- - authentication: Basic, Digest, NTLM(*9), GSS-Negotiate/Negotiate(*3) and
- SPNEGO (*4) to server and proxy
+ - authentication: Basic, Digest, NTLM (*9) and Negotiate (SPNEGO) (*3)
+ to server and proxy
- resume (both GET and PUT)
- follow redirects
- maximum amount of redirects to follow
- reads/writes the netscape cookie file format
- custom headers (replace/remove internally generated headers)
- custom user-agent string
- - custom referer string
+ - custom referrer string
- range
- proxy authentication
- time conditions
- via http-proxy
- retrieve file modification date
- Content-Encoding support for deflate and gzip
- - "Transfer-Encoding: chunked" support for "uploads"
+ - "Transfer-Encoding: chunked" support in uploads
+ - data compression (*12)
+ - HTTP/2 (*5)
HTTPS (*1)
- (all the HTTP features)
- verify server certificate
- via http-proxy
- select desired encryption
- - force usage of a specific SSL version (SSLv2(*7), SSLv3 or TLSv1)
+ - force usage of a specific SSL version (SSLv2 (*7), SSLv3 (*10) or TLSv1)
FTP
- download
- authentication
- - kerberos4 (*5), kerberos5 (*3)
+ - Kerberos 5 (*14)
- active/passive using PORT, EPRT, PASV or EPSV
- single file size information (compare to HTTP HEAD)
- 'type=' URL support
FTPS (*1)
- implicit ftps:// support that use SSL on both connections
- - explicit "AUTH TSL" and "AUTH SSL" usage to "upgrade" plain ftp://
+ - explicit "AUTH TLS" and "AUTH SSL" usage to "upgrade" plain ftp://
connection to use SSL for both or one of the connections
SCP (*8)
- with custom commands sent before/after the transfer
TFTP
- - download / upload
+ - download
+ - upload
TELNET
- connection negotiation
FILE
- URL support
- - "uploads"
+ - upload
- resume
+SMB
+ - SMBv1 over TCP and SSL
+ - download
+ - upload
+ - authentication with NTLMv1
+
+SMTP
+ - authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9) and Kerberos 5
+ (*4)
+ - send e-mails
+ - mail from support
+ - mail size support
+ - mail auth support for trusted server-to-server relaying
+ - multiple recipients
+ - via http-proxy
+
+SMTPS (*1)
+ - implicit smtps:// support
+ - explicit "STARTTLS" usage to "upgrade" plain smtp:// connections to use SSL
+ - via http-proxy
+
+POP3
+ - authentication: Clear Text, APOP and SASL
+ - SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9) and
+ Kerberos 5 (*4)
+ - list e-mails
+ - retrieve e-mails
+ - enhanced command support for: CAPA, DELE, TOP, STAT, UIDL and NOOP via
+ custom requests
+ - via http-proxy
+
+POP3S (*1)
+ - implicit pop3s:// support
+ - explicit "STLS" usage to "upgrade" plain pop3:// connections to use SSL
+ - via http-proxy
+
+IMAP
+ - authentication: Clear Text and SASL
+ - SASL based authentication: Plain, Login, CRAM-MD5, Digest-MD5, NTLM (*9) and
+ Kerberos 5 (*4)
+ - list the folders of a mailbox
+ - select a mailbox with support for verifying the UIDVALIDITY
+ - fetch e-mails with support for specifying the UID and SECTION
+ - upload e-mails via the append command
+ - enhanced command support for: EXAMINE, CREATE, DELETE, RENAME, STATUS,
+ STORE, COPY and UID via custom requests
+ - via http-proxy
+
+IMAPS (*1)
+ - implicit imaps:// support
+ - explicit "STARTTLS" usage to "upgrade" plain imap:// connections to use SSL
+ - via http-proxy
+
FOOTNOTES
=========
- *1 = requires OpenSSL, GnuTLS, NSS, yassl or PolarSSL
+ *1 = requires OpenSSL, GnuTLS, NSS, yassl, axTLS, PolarSSL, WinSSL (native
+ Windows), Secure Transport (native iOS/OS X) or GSKit (native IBM i)
*2 = requires OpenLDAP
- *3 = requires a GSSAPI-compliant library, such as Heimdal or similar.
- *4 = requires FBopenssl
- *5 = requires a krb4 library, such as the MIT one or similar.
+ *3 = requires a GSS-API implementation (such as Heimdal or MIT Kerberos) or
+ SSPI (native Windows)
+ *4 = requires a GSS-API implementation, however, only Windows SSPI is
+ currently supported
+ *5 = requires nghttp2 and possibly a recent TLS library
*6 = requires c-ares
- *7 = requires OpenSSL or NSS, as GnuTLS only supports SSLv3 and TLSv1
+ *7 = requires OpenSSL, NSS, GSKit, WinSSL or Secure Transport; GnuTLS, for
+ example, only supports SSLv3 and TLSv1
*8 = requires libssh2
- *9 = requires OpenSSL, GnuTLS, NSS or yassl
+ *9 = requires OpenSSL, GnuTLS, NSS, yassl, Secure Transport or SSPI (native
+ Windows)
+ *10 = requires any of the SSL libraries in (*1) above other than axTLS, which
+ does not support SSLv3
+ *11 = requires libidn or Windows
+ *12 = requires libz
+ *13 = requires libmetalink, and either an Apple or Microsoft operating
+ system, or OpenSSL, or GnuTLS, or NSS
+ *14 = requires a GSS-API implementation (such as Heimdal or MIT Kerberos)
projects / external / curl.git / blobdiff