Man page - curlopt_protocols(3)
Packages contas this manual
- curl_multi_socket(3)
- curl_global_trace(3)
- curl_easy_reset(3)
- curl_url_dup(3)
- curl_free(3)
- curl_easy_option_next(3)
- curl_maprintf(3)
- curl_mvprintf(3)
- curl_share_setopt(3)
- curl_strnequal(3)
- curl_escape(3)
- libcurl-multi(3)
- curl_multi_socket_all(3)
- curl_strequal(3)
- curl_easy_recv(3)
- curl_slist_append(3)
- curl_share_cleanup(3)
- curl_msnprintf(3)
- curl_easy_upkeep(3)
- curl_multi_wait(3)
- curl_mime_addpart(3)
- libcurl-env(3)
- curl_multi_waitfds(3)
- curl_ws_send(3)
- curl_multi_perform(3)
- curl_slist_free_all(3)
- curl_ws_meta(3)
- curl_multi_poll(3)
- curl_share_init(3)
- libcurl-symbols(3)
- curl_url_cleanup(3)
- libcurl-tutorial(3)
- curl_mime_free(3)
- curl_multi_timeout(3)
- curl_multi_socket_action(3)
- libcurl-easy(3)
- curl_easy_strerror(3)
- curl_easy_option_by_id(3)
- libcurl-ws(3)
- curl_mvfprintf(3)
- curl_mvsnprintf(3)
- libcurl(3)
- curl_easy_send(3)
- curl_easy_escape(3)
- curl_getenv(3)
- curl_mvsprintf(3)
- libcurl-env-dbg(3)
- curl_mime_init(3)
- libcurl-security(3)
- curl_mime_filename(3)
- curl_mime_name(3)
- curl_easy_ssls_export(3)
- curl_formget(3)
- curl_multi_init(3)
- curl_mime_data(3)
- curl_pushheader_byname(3)
- curl_mime_subparts(3)
- curl_easy_unescape(3)
- libcurl-errors(3)
- curl_easy_header(3)
- curl_global_init_mem(3)
- curl_mfprintf(3)
- libcurl-thread(3)
- curl_multi_remove_handle(3)
- curl_url_set(3)
- curl_version_info(3)
- curl_multi_cleanup(3)
- curl_formfree(3)
- curl_multi_assign(3)
- curl_url_get(3)
- curl_mime_filedata(3)
- curl_multi_fdset(3)
- curl_mime_type(3)
- libcurl-url(3)
- curl_version(3)
- curl_easy_option_by_name(3)
- curl_multi_strerror(3)
- curl_easy_nextheader(3)
- curl_unescape(3)
- curl_share_strerror(3)
- curl_mime_data_cb(3)
- curl_multi_get_handles(3)
- curl_global_sslset(3)
- curl_easy_pause(3)
- curl_easy_ssls_import(3)
- curl_multi_info_read(3)
- curl_global_cleanup(3)
- curl_multi_add_handle(3)
- curl_mprintf(3)
- curl_ws_recv(3)
- curl_mvaprintf(3)
- curl_easy_init(3)
- libcurl-share(3)
- curl_multi_setopt(3)
- curl_url_strerror(3)
- curl_easy_perform(3)
- curl_easy_cleanup(3)
- curl_easy_getinfo(3)
- curl_msprintf(3)
- curl_easy_setopt(3)
- curl_getdate(3)
- curl_mime_headers(3)
- curl_url(3)
- curl_mime_encoder(3)
- curl_multi_wakeup(3)
- curl_easy_duphandle(3)
- curl_formadd(3)
- curl_pushheader_bynum(3)
- curl_global_init(3)
apt-get install libcurl4-doc
Manual
| CURLOPT_PROTOCOLS(3) | Library Functions Manual | CURLOPT_PROTOCOLS(3) |
NAME
CURLOPT_PROTOCOLS - allowed protocols
SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROTOCOLS, long bitmask);
DESCRIPTION
This option is deprecated. We strongly recommend using CURLOPT_PROTOCOLS_STR(3) instead because this option cannot control all available protocols.
Pass a long that holds a bitmask of protocol bits. If used, this bitmask limits what protocols libcurl may use in the transfer. This allows you to have a 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 supports (CURLPROTO_ALL). See also CURLOPT_REDIR_PROTOCOLS(3).
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
All protocols built-in.
PROTOCOLS
This functionality affects all supported protocols
EXAMPLE
int main(int argc, char **argv)
{
CURL *curl = curl_easy_init();
if(curl) {
/* pass in the URL from an external source */
curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
/* only allow HTTP, TFTP and SFTP */
curl_easy_setopt(curl, CURLOPT_PROTOCOLS,
(long)CURLPROTO_HTTP | CURLPROTO_TFTP | CURLPROTO_SFTP);
/* Perform the request */
curl_easy_perform(curl);
}
}
DEPRECATED
Deprecated since 7.85.0.
AVAILABILITY
Added in curl 7.19.4
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).
SEE ALSO
CURLOPT_DEFAULT_PROTOCOL(3), CURLOPT_REDIR_PROTOCOLS(3), CURLOPT_URL(3)
| 2025-11-09 | libcurl |