68 lines
1.3 KiB
Markdown
68 lines
1.3 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: CURLINFO_REFERER
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_REFERER (3)
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- curl_easy_getinfo (3)
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- curl_easy_header (3)
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- curl_easy_setopt (3)
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---
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# NAME
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CURLINFO_REFERER - get the used referrer request header
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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_getinfo(CURL *handle, CURLINFO_REFERER, char **hdrp);
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~~~
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# DESCRIPTION
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Pass in a pointer to a char pointer and get the referrer header used in the
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most recent request.
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The **hdrp** pointer is NULL or points to private memory you MUST NOT free -
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it gets freed when you call curl_easy_cleanup(3) on the corresponding
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CURL handle.
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# PROTOCOLS
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HTTP(S)
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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 res;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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curl_easy_setopt(curl, CURLOPT_REFERER, "https://example.org/referrer");
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res = curl_easy_perform(curl);
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if(res == CURLE_OK) {
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char *hdr = NULL;
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curl_easy_getinfo(curl, CURLINFO_REFERER, &hdr);
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if(hdr)
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printf("Referrer header: %s\n", hdr);
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}
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.76.0
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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