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e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
73 lines
1.7 KiB
Markdown
73 lines
1.7 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_FAILONERROR
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_RESPONSE_CODE (3)
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- CURLOPT_HTTP200ALIASES (3)
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- CURLOPT_KEEP_SENDING_ON_ERROR (3)
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Protocol:
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- HTTP
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---
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# NAME
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CURLOPT_FAILONERROR - request failure on HTTP response \>= 400
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FAILONERROR, long fail);
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~~~
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# DESCRIPTION
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A long parameter set to 1 tells the library to fail the request if the HTTP
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code returned is equal to or larger than 400. The default action would be to
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return the page normally, ignoring that code.
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This method is not fail-safe and there are occasions where non-successful
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response codes slip through, especially when authentication is involved
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(response codes 401 and 407).
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You might get some amounts of headers transferred before this situation is
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detected, like when a "100-continue" is received as a response to a POST/PUT
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and a 401 or 407 is received immediately afterwards.
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When this option is used and an error is detected, it causes the connection to
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get closed and *CURLE_HTTP_RETURNED_ERROR* is returned.
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# DEFAULT
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0, do not fail on error
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode ret;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1L);
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ret = curl_easy_perform(curl);
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if(ret == CURLE_HTTP_RETURNED_ERROR) {
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/* an HTTP response error problem */
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}
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}
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}
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~~~
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# AVAILABILITY
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Along with HTTP.
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# RETURN VALUE
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Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.
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