CURLINFO_OS_ERRNO

Section: curl_easy_getinfo options (3)
Updated: November 04, 2020
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NAME

CURLINFO_OS_ERRNO - get errno number from last connect failure

SYNOPSIS

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.