CURLOPT_NETRC - request that .netrc is used
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_NETRC, long level);
This parameter controls the preference level
of libcurl between using
user names and passwords from your ~/.netrc
file, relative to user
names and passwords in the URL supplied with CURLOPT_URL(3)
Windows, libcurl will use the file as %HOME%/_netrc
, but you can also
tell libcurl a different file name to use with CURLOPT_NETRC_FILE(3)
libcurl uses a user name (and supplied or prompted password) supplied with
in preference to any
of the options controlled by this parameter.
Only machine name, user name and password are taken into account (init macros
and similar things aren't supported).
libcurl does not verify that the file has the correct properties set (as the
standard Unix ftp client does). It should only be readable by user.
should be set to one of the values described below.
- The use of your ~/.netrc file is optional, and
information in the URL is to be preferred. The file will be scanned for
the host and user name (to find the password only) or for the host only,
to find the first user name and password after that machine, which
ever information is not specified in the URL.
Undefined values of the option will have this effect.
- The library will ignore the file and use only the
information in the URL.
This is the default.
- This value tells the library that use of the file is
required, to ignore the information in the URL, and to search the file for
the host only.
CURL *curl = curl_easy_init();
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/");
curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
ret = curl_easy_perform(curl);