CURLOPT_SERVER_RESPONSE_TIMEOUT(3) Introduction to Library Functions

NAME

CURLOPT_SERVER_RESPONSE_TIMEOUT - time allowed to wait for server
response

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SERVER_RESPONSE_TIMEOUT,
long timeout);

DESCRIPTION

Pass a long. It tells libcurl to wait no longer than timeout seconds
for responses on sent commands. If no response is received within
this period, the connection is considered dead and the transfer
fails.

It is recommended that if used in conjunction with
CURLOPT_TIMEOUT(3), you set CURLOPT_SERVER_RESPONSE_TIMEOUT(3) to a
value smaller than CURLOPT_TIMEOUT(3).

DEFAULT

60 seconds

PROTOCOLS

This functionality affects ftp, imap, pop3, scp, sftp and smtp

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/slow.txt");
/* wait no more than 23 seconds */
curl_easy_setopt(curl, CURLOPT_SERVER_RESPONSE_TIMEOUT, 23L);
result = curl_easy_perform(curl);

curl_easy_cleanup(curl);
}
}

HISTORY

This option was formerly known as CURLOPT_FTP_RESPONSE_TIMEOUT.

AVAILABILITY

Added in curl 7.20.0

RETURN VALUE

curl_easy_setopt(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error
occurred, see libcurl-errors(3).

SEE ALSO

CURLOPT_CONNECTTIMEOUT(3), CURLOPT_LOW_SPEED_LIMIT(3),
CURLOPT_SERVER_RESPONSE_TIMEOUT_MS(3), CURLOPT_TIMEOUT(3)

libcurl 2026-01-08
CURLOPT_SERVER_RESPONSE_TIMEOUT(3)