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8d67c61c47
The curldown conversion accidentally replaced daniel@haxx.se with just daniel.se. This reverts back to the proper email address in the curldown docs as well as in a few other stray places where it was incorrect (while unrelated to curldown). Reviewed-by: Daniel Stenberg <daniel@haxx.se> Closes: #12997
74 lines
1.4 KiB
Markdown
74 lines
1.4 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_PREREQDATA
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_PRIMARY_IP (3)
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- CURLINFO_PRIMARY_PORT (3)
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- CURLOPT_PREREQFUNCTION (3)
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---
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# NAME
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CURLOPT_PREREQDATA - pointer passed to the pre-request callback
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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_PREREQDATA, void *pointer);
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~~~
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# DESCRIPTION
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Pass a *pointer* that is untouched by libcurl and passed as the first
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argument in the pre-request callback set with CURLOPT_PREREQFUNCTION(3).
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# DEFAULT
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NULL
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# PROTOCOLS
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All
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# EXAMPLE
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~~~c
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struct priv {
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void *custom;
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};
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static int prereq_callback(void *clientp,
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char *conn_primary_ip,
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char *conn_local_ip,
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int conn_primary_port,
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int conn_local_port)
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{
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printf("Connection made to %s:%d\n", conn_primary_ip, conn_primary_port);
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return CURL_PREREQFUNC_OK;
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}
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int main(void)
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{
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struct priv prereq_data;
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_PREREQFUNCTION, prereq_callback);
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curl_easy_setopt(curl, CURLOPT_PREREQDATA, &prereq_data);
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curl_easy_perform(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.80.0
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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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