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CURLOPT_LOGIN_OPTIONS(3) curl_easy_setopt options CURLOPT_LOGIN_OPTIONS(3)
CURLOPT_LOGIN_OPTIONS - login options
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_LOGIN_OPTIONS, char *options);
Pass a char * as parameter, which should be pointing to the null-
terminated options string to use for the transfer.
For more information about the login options please see RFC2384,
RFC5092 and the IETF draft draft-earhart-url-smtp-00.txt.
CURLOPT_LOGIN_OPTIONS(3) can be used to set protocol specific login
options, such as the preferred authentication mechanism via "AUTH=NTLM"
or "AUTH=*", and should be used in conjunction with the
The application does not have to keep the string around after setting
Only IMAP, LDAP, POP3 and SMTP support login options.
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "smtp://example.com/");
curl_easy_setopt(curl, CURLOPT_LOGIN_OPTIONS, "AUTH=*");
ret = curl_easy_perform(curl);
Added in 7.34.0. Support for OpenLDAP added in 7.82.0.
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if
not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
libcurl 7.87.0 September 20, 2022 CURLOPT_LOGIN_OPTIONS(3)