e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
71 lines
1.5 KiB
Markdown
71 lines
1.5 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: CURLINFO_LOCAL_IP
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_LOCAL_PORT (3)
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- CURLINFO_PRIMARY_IP (3)
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- curl_easy_getinfo (3)
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- curl_easy_setopt (3)
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Protocol:
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- All
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---
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# NAME
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CURLINFO_LOCAL_IP - get local IP address of last connection
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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_getinfo(CURL *handle, CURLINFO_LOCAL_IP, char **ip);
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~~~
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# DESCRIPTION
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Pass a pointer to a char pointer to receive the pointer to a null-terminated
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string holding the IP address of the local end of most recent connection done
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with this **curl** handle. This string may be IPv6 when that is
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enabled. Note that you get a pointer to a memory area that is reused at next
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request so you need to copy the string if you want to keep the information.
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The **ip** pointer is NULL or points to private memory. You MUST NOT free -
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it gets freed when you call curl_easy_cleanup(3) on the corresponding
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CURL handle.
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# EXAMPLE
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~~~c
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int main(void)
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{
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char *ip;
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CURLcode res;
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CURL *curl = curl_easy_init();
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Perform the transfer */
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res = curl_easy_perform(curl);
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/* Check for errors */
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if((res == CURLE_OK) &&
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!curl_easy_getinfo(curl, CURLINFO_LOCAL_IP, &ip) && ip) {
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printf("Local IP: %s\n", ip);
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}
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/* always cleanup */
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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 7.21.0
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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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