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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
66 lines
1.4 KiB
Markdown
66 lines
1.4 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_PRIMARY_PORT
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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_PRIMARY_PORT - get the latest destination port number
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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_PRIMARY_PORT, long *portp);
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~~~
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# DESCRIPTION
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Pass a pointer to a long to receive the destination port of the most recent
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connection done with this **curl** handle.
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This is the destination port of the actual TCP or UDP connection libcurl used.
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If a proxy was used for the most recent transfer, this is the port number of
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the proxy, if no proxy was used it is the port number of the most recently
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accessed URL.
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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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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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res = curl_easy_perform(curl);
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if(res == CURLE_OK) {
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long port;
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res = curl_easy_getinfo(curl, CURLINFO_PRIMARY_PORT, &port);
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if(!res)
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printf("Connected to remote port: %ld\n", port);
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}
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curl_easy_cleanup(curl);
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}
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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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