curl/docs/libcurl/opts/CURLINFO_PRIMARY_IP.3
max.mehl ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00

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Groff

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.TH CURLINFO_PRIMARY_IP 3 "12 Sep 2015" "libcurl 7.44.0" "curl_easy_getinfo options"
.SH NAME
CURLINFO_PRIMARY_IP \- get IP address of last connection
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIMARY_IP, char **ip);
.fi
.SH DESCRIPTION
Pass a pointer to a char pointer to receive the pointer to a null-terminated
string holding the IP address of the most recent connection done with this
\fBcurl\fP handle. This string may be IPv6 when that is enabled. Note that you
get a pointer to a memory area that will be re-used at next request so you
need to copy the string if you want to keep the information.
The \fBip\fP pointer will be NULL or pointing to private memory you MUST NOT
free - it gets freed when you call \fIcurl_easy_cleanup(3)\fP on the
corresponding CURL handle.
.SH PROTOCOLS
All network based ones
.SH EXAMPLE
.nf
{
char *ip;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if((res == CURLE_OK) &&
!curl_easy_getinfo(curl, CURLINFO_PRIMARY_IP, &ip) && ip) {
printf("IP: %s\\n", ip);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.19.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
.BR CURLINFO_PRIMARY_PORT "(3), " CURLINFO_LOCAL_IP "(3), "