mirror of
https://github.com/curl/curl.git
synced 2024-12-15 06:40:09 +08:00
77 lines
2.8 KiB
Groff
77 lines
2.8 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
.\" *
|
|
.\" * This software is licensed as described in the file COPYING, which
|
|
.\" * you should have received as part of this distribution. The terms
|
|
.\" * are also available at https://curl.se/docs/copyright.html.
|
|
.\" *
|
|
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
.\" * copies of the Software, and permit persons to whom the Software is
|
|
.\" * furnished to do so, under the terms of the COPYING file.
|
|
.\" *
|
|
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
.\" * KIND, either express or implied.
|
|
.\" *
|
|
.\" * SPDX-License-Identifier: curl
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH CURLINFO_CONDITION_UNMET 3 "1 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
|
|
.SH NAME
|
|
CURLINFO_CONDITION_UNMET \- get info on unmet time conditional or 304 HTTP response.
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONDITION_UNMET,
|
|
long *unmet);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
Pass a pointer to a long to receive the number 1 if the condition provided in
|
|
the previous request did not match (see \fICURLOPT_TIMECONDITION(3)\fP). Alas,
|
|
if this returns a 1 you know that the reason you did not get data in return is
|
|
because it did not fulfill the condition. The long this argument points to will
|
|
get a zero stored if the condition instead was met. This can also return 1 if
|
|
the server responded with a 304 HTTP status code, for example after sending a
|
|
custom "If-Match-*" header.
|
|
.SH PROTOCOLS
|
|
HTTP and some
|
|
.SH EXAMPLE
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
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,
|
|
(long)CURL_TIMECOND_IFMODSINCE);
|
|
|
|
/* Perform the request */
|
|
res = curl_easy_perform(curl);
|
|
|
|
if(!res) {
|
|
/* check the time condition */
|
|
long unmet;
|
|
res = curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &unmet);
|
|
if(!res) {
|
|
printf("The time condition was %sfulfilled\\n", unmet?"NOT":"");
|
|
}
|
|
}
|
|
}
|
|
.fi
|
|
.SH AVAILABILITY
|
|
Added in 7.19.4
|
|
.SH RETURN VALUE
|
|
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
|
|
.SH "SEE ALSO"
|
|
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
|