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Diffstat (limited to 'docs/libcurl/opts/GNURLOPT_SUPPRESS_CONNECT_HEADERS.3')
| -rw-r--r-- | docs/libcurl/opts/GNURLOPT_SUPPRESS_CONNECT_HEADERS.3 | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/docs/libcurl/opts/GNURLOPT_SUPPRESS_CONNECT_HEADERS.3 b/docs/libcurl/opts/GNURLOPT_SUPPRESS_CONNECT_HEADERS.3 new file mode 100644 index 000000000..22f83790f --- /dev/null +++ b/docs/libcurl/opts/GNURLOPT_SUPPRESS_CONNECT_HEADERS.3 @@ -0,0 +1,95 @@ +.\" ************************************************************************** +.\" * _ _ ____ _ +.\" * Project ___| | | | _ \| | +.\" * / __| | | | |_) | | +.\" * | (__| |_| | _ <| |___ +.\" * \___|\___/|_| \_\_____| +.\" * +.\" * Copyright (C) 1998 - 2017, 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.haxx.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. +.\" * +.\" ************************************************************************** +.\" +.TH CURLOPT_SUPPRESS_CONNECT_HEADERS 3 "13 February 2017" "libcurl 7.54.0" "curl_easy_setopt options" +.SH NAME +CURLOPT_SUPPRESS_CONNECT_HEADERS \- Suppress proxy CONNECT response headers from user callbacks +.SH SYNOPSIS +.nf +#include <gnurl/curl.h> + +CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SUPPRESS_CONNECT_HEADERS, long onoff); +.fi +.SH DESCRIPTION +When \fICURLOPT_HTTPPROXYTUNNEL(3)\fP is used and a CONNECT request is made, +suppress proxy CONNECT response headers from the user callback functions +\fICURLOPT_HEADERFUNCTION(3)\fP and \fICURLOPT_WRITEFUNCTION(3)\fP. + +Proxy CONNECT response headers can complicate header processing since it's +essentially a separate set of headers. You can enable this option to suppress +those headers. + +For example let's assume an HTTPS URL is to be retrieved via CONNECT. On +success there would normally be two sets of headers, and each header line sent +to the header function and/or the write function. The data given to the +callbacks would look like this: + +.nf +HTTP/1.1 200 Connection established +{headers}... + +HTTP/1.1 200 OK +Content-Type: application/json +{headers}... + +{body}... +.fi + +However by enabling this option the CONNECT response headers are suppressed, so +the data given to the callbacks would look like this: + +.nf +HTTP/1.1 200 OK +Content-Type: application/json +{headers}... + +{body}... +.fi + +.SH DEFAULT +0 +.SH PROTOCOLS +All +.SH EXAMPLE +.nf +CURL *curl = curl_easy_init(); +if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); + + curl_easy_setopt(curl, CURLOPT_HEADER, 1L); + curl_easy_setopt(curl, CURLOPT_PROXY, "http://foo:3128"); + curl_easy_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, 1L); + curl_easy_setopt(curl, CURLOPT_SUPPRESS_CONNECT_HEADERS, 1L); + + curl_easy_perform(curl); + + /* always cleanup */ + curl_easy_cleanup(curl); +} +.fi +.SH AVAILABILITY +Added in 7.54.0 +.SH RETURN VALUE +CURLE_OK or an error such as CURLE_UNKNOWN_OPTION. +.SH "SEE ALSO" +.BR CURLOPT_HEADER "(3), " CURLOPT_PROXY "(3), " +.BR CURLOPT_HTTPPROXYTUNNEL "(3), " |