quickjs-tart

quickjs-based runtime for wallet-core logic
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CURLINFO_PRIMARY_PORT.md (1521B)

      1 ---
      2 c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      3 SPDX-License-Identifier: curl
      4 Title: CURLINFO_PRIMARY_PORT
      5 Section: 3
      6 Source: libcurl
      7 See-also:
      8   - CURLINFO_LOCAL_PORT (3)
      9   - CURLINFO_PRIMARY_IP (3)
     10   - curl_easy_getinfo (3)
     11   - curl_easy_setopt (3)
     12 Protocol:
     13   - All
     14 Added-in: 7.21.0
     15 ---
     16 
     17 # NAME
     18 
     19 CURLINFO_PRIMARY_PORT - get the latest destination port number
     20 
     21 # SYNOPSIS
     22 
     23 ~~~c
     24 #include <curl/curl.h>
     25 
     26 CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_PRIMARY_PORT, long *portp);
     27 ~~~
     28 
     29 # DESCRIPTION
     30 
     31 Pass a pointer to a long to receive the destination port of the most recent
     32 connection done with this **curl** handle.
     33 
     34 This is the destination port of the actual TCP or UDP connection libcurl used.
     35 If a proxy was used for the most recent transfer, this is the port number of
     36 the proxy, if no proxy was used it is the port number of the most recently
     37 accessed URL.
     38 
     39 # %PROTOCOLS%
     40 
     41 # EXAMPLE
     42 
     43 ~~~c
     44 int main(void)
     45 {
     46   CURL *curl = curl_easy_init();
     47   if(curl) {
     48     CURLcode res;
     49     curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     50     res = curl_easy_perform(curl);
     51     if(res == CURLE_OK) {
     52       long port;
     53       res = curl_easy_getinfo(curl, CURLINFO_PRIMARY_PORT, &port);
     54       if(!res)
     55         printf("Connected to remote port: %ld\n", port);
     56     }
     57     curl_easy_cleanup(curl);
     58   }
     59 }
     60 ~~~
     61 
     62 # %AVAILABILITY%
     63 
     64 # RETURN VALUE
     65 
     66 curl_easy_getinfo(3) returns a CURLcode indicating success or error.
     67 
     68 CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
     69 libcurl-errors(3).