CURLOPT_TIMEVALUE(3) Introduction to Library Functions CURLOPT_TIMEVALUE(3)

NAME

CURLOPT_TIMEVALUE - time value for conditional

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEVALUE, long val);

DESCRIPTION

Pass a long val as parameter. This should be the time counted as
seconds since 1 Jan 1970, and the time is used in a condition as
specified with CURLOPT_TIMECONDITION(3).

On systems with 32-bit 'long' variables (such as Windows), this
option cannot set dates beyond the year 2038. Consider
CURLOPT_TIMEVALUE_LARGE(3) instead.

DEFAULT

0

PROTOCOLS

This functionality affects http only

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

/* January 1, 2020 is 1577833200 */
curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);

/* If-Modified-Since the above time stamp */
curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);

/* Perform the request */
curl_easy_perform(curl);
}
}

HISTORY

CURL_TIMECOND_* enums became long types in 8.13.0, prior to this
version a long cast was necessary when passed to curl_easy_setopt(3).

AVAILABILITY

Added in curl 7.1

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_TIMECONDITION(3), CURLOPT_TIMEVALUE_LARGE(3)

libcurl 2026-01-08 CURLOPT_TIMEVALUE(3)