CURLOPT_EXPECT_100_TIMEOUT_MS(3)                      Library Functions Manual

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) {
           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);

           curl_easy_perform(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                           2025-02-13  CURLOPT_EXPECT_100_TIMEOUT_MS(3)