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CURLOPT_TIMEVALUE(3) Library Functions Manual 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 can- not set dates beyond the year 2038. Consider CURLOPT_TIMEVALUE_LARGE(3) in- stead. DEFAULT 0 PROTOCOLS This functionality affects http only EXAMPLE int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode result; 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 */ result = curl_easy_perform(curl); curl_easy_cleanup(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 2026-06-11 CURLOPT_TIMEVALUE(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | HISTORY | AVAILABILITY | RETURN VALUE | SEE ALSO
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