76 lines
1.4 KiB
Markdown
76 lines
1.4 KiB
Markdown
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---
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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_CLOSESOCKETDATA
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_CLOSESOCKETFUNCTION (3)
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- CURLOPT_OPENSOCKETFUNCTION (3)
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---
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# NAME
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CURLOPT_CLOSESOCKETDATA - pointer passed to the socket close 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_CLOSESOCKETDATA,
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void *pointer);
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~~~
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# DESCRIPTION
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Pass a *pointer* that remains untouched by libcurl and passed as the first
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argument in the closesocket callback set with
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CURLOPT_CLOSESOCKETFUNCTION(3).
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# DEFAULT
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The default value of this parameter is NULL.
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# PROTOCOLS
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All except file:
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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 closesocket(void *clientp, curl_socket_t item)
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{
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struct priv *my = clientp;
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printf("our ptr: %p\n", my->custom);
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printf("libcurl wants to close %d now\n", (int)item);
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return 0;
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}
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int main(void)
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{
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struct priv myown;
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CURL *curl = curl_easy_init();
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/* call this function to close sockets */
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curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closesocket);
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curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &myown);
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curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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~~~
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# AVAILABILITY
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Added in 7.21.7
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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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