## NAME

CURLOPT_USERAGENT - set 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 zero terminated string as parameter. It will be used to set the User-Agent: header in the HTTP request sent to the remote server. This can be used to fool servers or scripts. You can also set any custom header with CURLOPT_HTTPHEADER.

## DEFAULT

NULL, no User-Agent: header is used by default.

## PROTOCOLS

HTTP, HTTPS

## EXAMPLE

    CURL *curl = curl_easy_init();
    if(curl) {
      curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

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

      curl_easy_perform(curl);
    }

## AVAILABILITY

As long as HTTP is supported

## 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_REFERER, CURLOPT_HTTPHEADER,

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