CURLOPT_SE...TIMEOUT_MS(3) Library Functions Manual CURLOPT_SE...TIMEOUT_MS(3)
NAME
CURLOPT_SERVER_RESPONSE_TIMEOUT_MS - time allowed to wait for server re-
sponse
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SERVER_RESPONSE_TIMEOUT_MS,
long timeout);
DESCRIPTION
Pass a long. Causes libcurl to set a timeout period (in milliseconds) on
the amount of time that the server is allowed to take in order to send a
response message for a command before the session is considered dead.
While libcurl is waiting for a response, this value overrides CUR-
LOPT_TIMEOUT(3). It is recommended that if used in conjunction with CUR-
LOPT_TIMEOUT(3), you set CURLOPT_SERVER_RESPONSE_TIMEOUT_MS(3) to a
value smaller than CURLOPT_TIMEOUT(3).
The maximum accepted value is 2147483648.
This is the millisecond version of CURLOPT_SERVER_RESPONSE_TIMEOUT(3).
DEFAULT
None
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 237 milliseconds */
curl_easy_setopt(curl, CURLOPT_SERVER_RESPONSE_TIMEOUT_MS, 237L);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
AVAILABILITY
Added in curl 8.6.0
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_TIME-
OUT(3)
libcurl 2026-07-12 CURLOPT_SE...TIMEOUT_MS(3)
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