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FEATURES

1. config file support
2. multiple URLs in a single command line
3. range “globbing” support: [0-13], {one,two,three}
4. multiple file upload on a single command line
5. custom maximum transfer rate
6. redirectable stderr

1. full URL syntax with no length limit
2. custom maximum download time
3. custom least download speed acceptable
4. custom output result after completion
5. guesses protocol from host name unless specified
6. uses .netrc
7. progress bar/time specs while downloading
8. “standard” proxy environment variables support
9. compiles on win32 (reported builds on 40+ operating systems)
10. selectable network interface for outgoing traffic
11. IPv6 support on unix and Windows
12. persistant connections
13. socks5 support
14. supports user name + password in proxy environment variables
15. operations through proxy “tunnel” (using CONNECT)
16. supports large files (>2GB and >4GB) both upload/download
17. replacable memory functions (malloc, free, realloc, etc)
18. asynchronous name resolving (*6)
19. both a push and a pull style interface

1. HTTP/1.1 compliant (optionally uses 1.0)
2. GET
3. PUT
4. HEAD
5. POST
6. Pipelining
7. multipart formpost (RFC1867-style)
8. authentication: Basic, Digest, NTLM(*9), GSS-Negotiate/Negotiate(*3) and

SPNEGO (*4) to server and proxy

1. resume (both GET and PUT)
2. follow redirects
3. maximum amount of redirects to follow
4. custom HTTP request
5. cookie get/send fully parsed
6. reads/writes the netscape cookie file format
7. custom headers (replace/remove internally generated headers)
8. custom user-agent string
9. custom referer string
10. range
11. proxy authentication
12. time conditions
13. via http-proxy
14. retrieve file modification date
15. Content-Encoding support for deflate and gzip
16. “Transfer-Encoding: chunked” support for “uploads”

1. (all the HTTP features)
2. using client certificates
3. verify server certificate
4. via http-proxy
5. select desired encryption
6. force usage of a specific SSL version (SSLv2(*7), SSLv3 or TLSv1)

1. download
2. authentication
3. kerberos4 (*5), kerberos5 (*3)
4. active/passive using PORT, EPRT, PASV or EPSV
5. single file size information (compare to HTTP HEAD)
6. 'type=' URL support
7. dir listing
8. dir listing names-only
9. upload
10. upload append
11. upload via http-proxy as HTTP PUT
12. download resume
13. upload resume
14. custom ftp commands (before and/or after the transfer)
15. simple “range” support
16. via http-proxy
17. all operations can be tunneled through a http-proxy
18. customizable to retrieve file modification date
19. no dir depth limit

1. implicit ftps: support that use SSL on both connections - explicit “AUTH TSL” and “AUTH SSL” usage to “upgrade” plain ftp:

connection to use SSL for both or one of the connections

1. both password and public key auth

1. both password and public key auth
2. with custom commands sent before/after the transfer

1. download / upload

1. connection negotiation
2. custom telnet options
3. stdin/stdout I/O

1. full LDAP URL support

1. extended DICT URL support

1. URL support
2. “uploads”
3. resume

• 1 = requires OpenSSL, GnuTLS, NSS, yassl or PolarSSL
• 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.
• 6 = requires c-ares
• 7 = requires OpenSSL or NSS, as GnuTLS only supports SSLv3 and TLSv1
• 8 = requires libssh2
• 9 = requires OpenSSL, GnuTLS, NSS or yassl