CURLOPT_FOLLOWLOCATION(3) curl_easy_setopt options CURLOPT_FOLLOWLOCATION(3)NAMECURLOPT_FOLLOWLOCATION - follow HTTP 3xx redirects
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FOLLOWLOCATION, long
enable);
DESCRIPTION
A long parameter set to 1 tells the library to follow any Location:
header that the server sends as part of a HTTP header in a 3xx
response. The Location: header can specify a relative or an absolute
URL to follow.
libcurl will issue another request for the new URL and follow new Loca‐
tion: headers all the way until no more such headers are returned.
CURLOPT_MAXREDIRS(3) can be used to limit the number of redirects
libcurl will follow.
libcurl limits what protocols it automatically follows to. The accepted
protocols are set with CURLOPT_REDIR_PROTOCOLS(3). By default libcurl
will allow all protocols on redirect except those disabled for security
reasons: Since 7.19.4 FILE and SCP are disabled, and since 7.40.0 SMB
and SMBS are also disabled.
When following a Location:, the 3xx response code that redirected it
also dictates which request method it will use in the subsequent
request: For 301, 302 and 303 responses libcurl will switch method to
GET unless CURLOPT_POSTREDIR(3) instructs libcurl otherwise. All other
3xx codes will make libcurl send the same method again.
For users who think the existing location following is too naive, too
simple or just lacks features, it is very easy to instead implement
your own redirect follow logic with the use of curl_easy_getinfo(3)'s
CURLINFO_REDIRECT_URL(3) option instead of using CURLOPT_FOLLOWLOCA‐
TION(3).
DEFAULT
0, disabled
PROTOCOLSHTTP(S)EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* example.com is redirected, so we tell libcurl to follow redirection */
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_perform(curl);
}
AVAILABILITY
Along with HTTP
RETURN VALUE
Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSOCURLOPT_REDIR_PROTOCOLS(3), CURLOPT_PROTOCOLS(3), CURLOPT_POSTREDIR(3),
CURLINFO_REDIRECT_URL(3), ,CURLINFO_REDIRECT_COUNT(3),
libcurl 7.37.0 17 Jun 2014 CURLOPT_FOLLOWLOCATION(3)
