1---
2c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
3SPDX-License-Identifier: curl
4Title: CURLOPT_EXPECT_100_TIMEOUT_MS
5Section: 3
6Source: libcurl
7See-also:
8  - CURLOPT_HTTPPOST (3)
9  - CURLOPT_POST (3)
10Protocol:
11  - HTTP
12---
13
14# NAME
15
16CURLOPT_EXPECT_100_TIMEOUT_MS - timeout for Expect: 100-continue response
17
18# SYNOPSIS
19
20~~~c
21#include <curl/curl.h>
22
23CURLcode curl_easy_setopt(CURL *handle, CURLOPT_EXPECT_100_TIMEOUT_MS,
24                          long milliseconds);
25~~~
26
27# DESCRIPTION
28
29Pass a long to tell libcurl the number of *milliseconds* to wait for a
30server response with the HTTP status 100 (Continue), 417 (Expectation Failed)
31or similar after sending an HTTP request containing an Expect: 100-continue
32header. If this times out before a response is received, the request body is
33sent anyway.
34
35# DEFAULT
36
371000 milliseconds
38
39# EXAMPLE
40
41~~~c
42int main(void)
43{
44  CURL *curl = curl_easy_init();
45  if(curl) {
46    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
47
48    /* wait 3 seconds for 100-continue */
49    curl_easy_setopt(curl, CURLOPT_EXPECT_100_TIMEOUT_MS, 3000L);
50
51    curl_easy_perform(curl);
52  }
53}
54~~~
55
56# AVAILABILITY
57
58Added in 7.36.0
59
60# RETURN VALUE
61
62Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
63