curl-w32/docs/libcurl/opts/CURLOPT_EXPECT_100_TIMEOUT_MS.md

c	SPDX-License-Identifier	Title	Section	Source	See-also
Copyright (C) Daniel Stenberg, <daniel.se>, et al.	curl	CURLOPT_EXPECT_100_TIMEOUT_MS	3	libcurl	CURLOPT_HTTPPOST (3) CURLOPT_POST (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

HTTP

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 7.36.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.