CURLINFO_OS_ERRNO(3)       curl_easy_getinfo options      CURLINFO_OS_ERRNO(3)

NAME
       CURLINFO_OS_ERRNO - get errno number from last connect failure

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_OS_ERRNO, long
       *errnop);

DESCRIPTION
       Pass a pointer to a long to receive the errno variable from a connect
       failure.  Note that the value is only set on failure, it is not reset
       upon a successful operation. The number is OS and system specific.

PROTOCOLS
       All

EXAMPLE
       CURL *curl = curl_easy_init();
       if(curl) {
         CURLcode res;
         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
         res = curl_easy_perform(curl);
         if(res != CURLE_OK) {
           long error;
           res = curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &error);
           if(res && error) {
             printf("Errno: %ld\n", error);
           }
         }
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.12.2

RETURN VALUE
       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       curl_easy_getinfo(3), curl_easy_setopt(3),

libcurl 7.77.0                 November 4, 2020           CURLINFO_OS_ERRNO(3)