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CURLOPT_USERNAME(3) libcurl CURLOPT_USERNAME(3)
CURLOPT_USERNAME - user name to use in authentication
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_USERNAME,
Pass a char * as parameter, which should be pointing to the null-
terminated user name to use for the transfer.
CURLOPT_USERNAME(3) sets the user name to be used in protocol
authentication. You should not use this option together with the
(older) CURLOPT_USERPWD(3) option.
When using Kerberos V5 authentication with a Windows based server, you
should include the domain name in order for the server to successfully
obtain a Kerberos Ticket. If you do not then the initial part of the
authentication handshake may fail.
When using NTLM, the user name can be specified simply as the user name
without the domain name should the server be part of a single domain
To include the domain name use either Down-Level Logon Name or UPN
(User Principal Name) formats. For example, EXAMPLE\user and
Some HTTP servers (on Windows) support inclusion of the domain for
Basic authentication as well.
To specify the password and login options, along with the user name,
use the CURLOPT_PASSWORD(3) and CURLOPT_LOGIN_OPTIONS(3) options.
The application does not have to keep the string around after setting
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
curl_easy_setopt(curl, CURLOPT_USERNAME, "clark");
ret = curl_easy_perform(curl);
Added in 7.19.1
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if
not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
CURLOPT_USERPWD(3), CURLOPT_PASSWORD(3), CURLOPT_HTTPAUTH(3),
ibcurl 8.1.2 April 26, 2023 CURLOPT_USERNAME(3)