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repo/core/curl/files/CURLOPT_PROXYHEADER.3
2024-08-02 20:52:59 -05:00

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.\" generated by cd2nroff 0.1 from CURLOPT_PROXYHEADER.md
.TH CURLOPT_PROXYHEADER 3 "2024-08-02" libcurl
.SH NAME
CURLOPT_PROXYHEADER \- set of HTTP headers to pass to proxy
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXYHEADER,
struct curl_slist *headers);
.fi
.SH DESCRIPTION
Pass a pointer to a linked list of HTTP headers to pass in your HTTP request
sent to a proxy. The rules for this list is identical to the
\fICURLOPT_HTTPHEADER(3)\fP option\(aqs.
The headers set with this option is only ever used in requests sent to a proxy
- when there is also a request sent to a host.
The first line in a request (containing the method, usually a GET or POST) is
NOT a header and cannot be replaced using this option. Only the lines
following the request\-line are headers. Adding this method line in this list
of headers causes your request to send an invalid header.
Pass a NULL to this to reset back to no custom headers.
.SH DEFAULT
NULL
.SH PROTOCOLS
This functionality affects all supported protocols
.SH EXAMPLE
.nf
int main(void)
{
CURL *curl = curl_easy_init();
struct curl_slist *list;
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
curl_easy_setopt(curl, CURLOPT_PROXY, "http://proxy.example.com:80");
list = curl_slist_append(NULL, "Shoesize: 10");
list = curl_slist_append(list, "Accept:");
curl_easy_setopt(curl, CURLOPT_PROXYHEADER, list);
curl_easy_perform(curl);
curl_slist_free_all(list); /* free the list again */
}
}
.fi
.SH AVAILABILITY
Added in curl 7.37.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH SEE ALSO
.BR CURLOPT_HEADEROPT (3),
.BR CURLOPT_HTTPHEADER (3)