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 zero terminated user
name to use for the transfer.
sets the user name to be used in protocol
authentication. You should not use this option together with the (older)
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 don't 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 and forest.
To include the domain name use either Down-Level Logon Name or UPN (User
Principal Name) formats. For example, EXAMPLE\user and firstname.lastname@example.org
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
The application does not have to keep the string around after setting this
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "http://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.