CURLOPT_SERVER_RESPONSE_TIMEOUT(3) Library Functions Manual NAME CURLOPT_SERVER_RESPONSE_TIMEOUT - time allowed to wait for server response SYNOPSIS #include 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 res; 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); res = 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 2025-11-05 CURLOPT_SERVER_RESPONSE_TIMEOUT(3)