CURLOPT_SERVER_RESPONSE_TIMEOUT(3) Library Functions Manual
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 2026-03-23
CURLOPT_SERVER_RESPONSE_TIMEOUT(3)
curl 8.19.0 - Generated Tue Mar 31 07:24:26 CDT 2026