63 lines
1.2 KiB
Markdown
63 lines
1.2 KiB
Markdown
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---
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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_OS_ERRNO
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Section: 3
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Source: libcurl
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See-also:
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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_OS_ERRNO - get errno number from last connect failure
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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_OS_ERRNO, long *errnop);
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~~~
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# DESCRIPTION
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Pass a pointer to a long to receive the errno variable from a connect failure.
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Note that the value is only set on failure, it is not reset upon a successful
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operation. The number is OS and system specific.
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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 error;
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res = curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &error);
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if(res && error) {
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printf("Errno: %ld\n", error);
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}
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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 7.12.2
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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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