NAME

       CURLOPT_USERAGENT - HTTP user-agent header

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_USERAGENT, char *ua);

DESCRIPTION

       Pass  a  pointer to a null-terminated string as parameter. It is used to set the User-Agent: header field
       in  the  HTTP  request  sent  to  the  remote  server.  You  can  also  set  any   custom   header   with
       CURLOPT_HTTPHEADER(3).

       The application does not have to keep the string around after setting this option.

DEFAULT

       NULL, no User-Agent: header is used.

PROTOCOLS

       This functionality affects http only

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

           curl_easy_setopt(curl, CURLOPT_USERAGENT, "Dark Secret Ninja/1.0");

           curl_easy_perform(curl);
         }
       }

AVAILABILITY

       Added in curl 7.1

RETURN VALUE

       Returns  CURLE_OK  if HTTP is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was
       insufficient heap space.

SEE ALSO

       CURLOPT_CUSTOMREQUEST(3), CURLOPT_HTTPHEADER(3), CURLOPT_REFERER(3), CURLOPT_REQUEST_TARGET(3)

libcurl                                            2024-12-11                               CURLOPT_USERAGENT(3)