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.TH CURLOPT_CLOSESOCKETDATA 3 "November 04, 2020" "libcurl 7.77.0" "curl_easy_setopt options"

.SH NAME
CURLOPT_CLOSESOCKETDATA \- pointer passed to the socket close callback
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CLOSESOCKETDATA, void *pointer);
.SH DESCRIPTION
Pass a \fIpointer\fP that will be untouched by libcurl and passed as the first
argument in the closesocket callback set with
\fICURLOPT_CLOSESOCKETFUNCTION(3)\fP.
.SH DEFAULT
The default value of this parameter is NULL.
.SH PROTOCOLS
All except file:
.SH EXAMPLE
.nf
static int closesocket(void *clientp, curl_socket_t item)
{
  printf("libcurl wants to close %d now\\n", (int)item);
  return 0;
}

/* call this function to close sockets */
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closesocket);
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &sockfd);
.fi
.SH AVAILABILITY
Added in 7.21.7
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_CLOSESOCKETFUNCTION "(3), " CURLOPT_OPENSOCKETFUNCTION "(3), "
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