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CURL.SetOptionProtocolsString

The protocols to allow.

Component Version macOS Windows Linux Server iOS SDK
CURL 12.4 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "CURL.SetOptionProtocolsString"; curl; Value )   More

Parameters

Parameter Description Example
curl The CURL session handle. $curl
Value The new value.

Result

Returns OK or error.

Description

The protocols to allow.
Pass a string that holds a comma-separated list of case insensitive protocol names (URL schemes) to allow in the transfer. This option allows applications to use libcurl built to support a wide range of protocols but still limit specific transfers to only be allowed to use a subset of them. By default, libcurl accepts all protocols it was built with support for. See also CURL.SetOptionReditProtocolsString.

If trying to set a non-existing protocol or if no matching protocol at all is set, it returns error.

These are the available protocols:

DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTMPE, RTMPS, RTMPT, RTMPTE, RTMPTS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP

You can set "ALL" as a short-cut to enable all protocols. Note that by setting all, you may enable protocols that were not supported the day you write this but are introduced in a future libcurl version.

CURL.Protocols can be used to get a list of all supported protocols in the current libcurl. CURL.GetProtocol function is the recommended way to figure out the protocol used in a previous transfer.

See also

Release notes

Blog Entries

This function checks for a license.

Created 1st September 2022, last changed 1st September 2022


CURL.SetOptionProtocols - CURL.SetOptionProxy