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CURLOPT_EX..._TIMEOUT_MS(3) Library Functions Manual CURLOPT_EX..._TIMEOUT_MS(3) NAME CURLOPT_EXPECT_100_TIMEOUT_MS - timeout for Expect: 100-continue response SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_EXPECT_100_TIMEOUT_MS, long milliseconds); DESCRIPTION Pass a long to tell libcurl the number of milliseconds to wait for a server response with the HTTP status 100 (Continue), 417 (Expectation Failed) or similar after sending an HTTP request containing an Expect: 100-continue header. If this times out before a response is received, the request body is sent anyway. DEFAULT 1000 milliseconds 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"); /* wait 3 seconds for 100-continue */ curl_easy_setopt(curl, CURLOPT_EXPECT_100_TIMEOUT_MS, 3000L); result = curl_easy_perform(curl); curl_easy_cleanup(curl); } } AVAILABILITY Added in curl 7.36.0 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_HTTPPOST(3), CURLOPT_POST(3) libcurl 2026-06-11 CURLOPT_EX..._TIMEOUT_MS(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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