CURLOPT_REDIR_PROTOCOLS - protocols allowed to redirect to
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REDIR_PROTOCOLS, long bitmask);
curl_easy_setopt options CURLOPT_REDIR_PROTOCOLS(3)
NAME
CURLOPT_REDIR_PROTOCOLS - protocols allowed to redirect to
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REDIR_PROTOCOLS, long bitmask);
DESCRIPTION
Pass a long that holds a bitmask of CURLPROTO_* defines. If used, this
bitmask limits what protocols libcurl may use in a transfer that it
follows to in a redirect when CURLOPT_FOLLOWLOCATION(3) is enabled.
This allows you to limit specific transfers to only be allowed to use a
subset of protocols in redirections.
Protocols denied by CURLOPT_PROTOCOLS(3) are not overridden by this
option.
By default libcurl will allow HTTP, HTTPS, FTP and FTPS on redirect
(7.65.2). Older versions of libcurl allowed all protocols on redirect
except several disabled for security reasons: Since 7.19.4 FILE and SCP
are disabled, and since 7.40.0 SMB and SMBS are also disabled. CURL-
PROTO_ALL enables all protocols on redirect, including those disabled
for security.
These are the available protocol defines:
CURLPROTO_DICT
CURLPROTO_FILE
CURLPROTO_FTP
CURLPROTO_FTPS
CURLPROTO_GOPHER
CURLPROTO_HTTP
CURLPROTO_HTTPS
CURLPROTO_IMAP
CURLPROTO_IMAPS
CURLPROTO_LDAP
CURLPROTO_LDAPS
CURLPROTO_POP3
CURLPROTO_POP3S
CURLPROTO_RTMP
CURLPROTO_RTMPE
CURLPROTO_RTMPS
CURLPROTO_RTMPT
CURLPROTO_RTMPTE
CURLPROTO_RTMPTS
CURLPROTO_RTSP
CURLPROTO_SCP
CURLPROTO_SFTP
CURLPROTO_SMB
CURLPROTO_SMBS
CURLPROTO_SMTP
CURLPROTO_SMTPS
CURLPROTO_TELNET
CURLPROTO_TFTP
DEFAULT
HTTP, HTTPS, FTP and FTPS (Added in 7.65.2).
Older versions defaulted to all protocols except FILE, SCP and since
7.40.0 SMB and SMBS.
PROTOCOLS
All
EXAMPLE
curl = curl_easy_init();
if(curl) {
/* pass in the URL from an external source */
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
/* only allow redirects to HTTP and HTTPS URLs */
curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS,
CURLPROTO_HTTP | CURLPROTO_HTTPS);
/* Perform the request */
curl_easy_perform(curl);
}
AVAILABILITY
Added in 7.19.4, before then it would follow all protocols.
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLOPT_PROTOCOLS(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 November 26, 2021
CURLOPT_REDIR_PROTOCOLS(3)