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.\" generated by cd2nroff 0.1 from curl_easy_option_by_id.md
.TH curl_easy_option_by_id 3 "2025-06-06" libcurl
.SH NAME
curl_easy_option_by_id \- find an easy setopt option by id
.SH SYNOPSIS
.nf
#include <curl/curl.h>
const struct curl_easyoption *curl_easy_option_by_id(CURLoption id);
.fi
.SH DESCRIPTION
Given a \fICURLoption\fP \fBid\fP, this function returns a pointer to the
\fIcurl_easyoption\fP struct, holding information about the \fIcurl_easy_setopt(3)\fP
option using that id. The option id is the \fICURLOPT_\fP prefixed ones provided
in the standard curl/curl.h header file. This function returns the non\-alias
version of the cases where there is an alias function as well.
If libcurl has no option with the given id, this function returns NULL.
.SH PROTOCOLS
This functionality affects all supported protocols
.SH EXAMPLE
.nf
int main(void)
{
const struct curl_easyoption *opt = curl_easy_option_by_id(CURLOPT_URL);
if(opt) {
printf("This option wants type %x\\n", opt->type);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.73.0
.SH RETURN VALUE
A pointer to the \fIcurl_easyoption\fP struct for the option or NULL.
.SH SEE ALSO
.BR curl_easy_option_by_name (3),
.BR curl_easy_option_next (3),
.BR curl_easy_setopt (3)