eefcc1bda4
curldown is this new file format for libcurl man pages. It is markdown inspired with differences: - Each file has a set of leading headers with meta-data - Supports a small subset of markdown - Uses .md file extensions for editors/IDE/GitHub to treat them nicely - Generates man pages very similar to the previous ones - Generates man pages that still convert nicely to HTML on the website - Detects and highlights mentions of curl symbols automatically (when their man page section is specified) tools: - cd2nroff: converts from curldown to nroff man page - nroff2cd: convert an (old) nroff man page to curldown - cdall: convert many nroff pages to curldown versions - cd2cd: verifies and updates a curldown to latest curldown This setup generates .3 versions of all the curldown versions at build time. CI: Since the documentation is now technically markdown in the eyes of many things, the CI runs many more tests and checks on this documentation, including proselint, link checkers and tests that make sure we capitalize the first letter after a period... Closes #12730
68 lines
1.4 KiB
Markdown
68 lines
1.4 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel.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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---
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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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# PROTOCOLS
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All
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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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