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.\" generated by cd2nroff 0.1 from CURLOPT_KRBLEVEL.md
.TH CURLOPT_KRBLEVEL 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_KRBLEVEL \- FTP kerberos security level
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_KRBLEVEL, char *level);
.fi
.SH DESCRIPTION
Pass a char pointer as parameter. Set the kerberos security level for FTP;
this also enables kerberos awareness. This is a string that should match one
of the following: &\(aqclear\(aq, &\(aqsafe\(aq, &\(aqconfidential\(aq or &\(aqprivate\(aq. If the
string is set but does not match one of these, \(aqprivate\(aq is used. Set the
string to NULL to disable kerberos support for FTP.
The application does not have to keep the string around after setting this
option.
The application does not have to keep the string around after setting this
option.
.SH DEFAULT
NULL
.SH PROTOCOLS
This functionality affects ftp only
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/foo.bin");
curl_easy_setopt(curl, CURLOPT_KRBLEVEL, "private");
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
.fi
.SH HISTORY
This option was known as CURLOPT_KRB4LEVEL up to 7.16.3
.SH AVAILABILITY
Added in curl 7.16.4
.SH RETURN VALUE
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLOPT_KRBLEVEL (3),
.BR CURLOPT_USE_SSL (3)