Annotation of embedaddon/curl/docs/libcurl/opts/CURLINFO_OS_ERRNO.3, revision 1.1.1.1
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23: .TH CURLINFO_OS_ERRNO 3 "March 23, 2020" "libcurl 7.70.0" "curl_easy_getinfo options"
24:
25: .SH NAME
26: CURLINFO_OS_ERRNO \- get errno number from last connect failure
27: .SH SYNOPSIS
28: #include <curl/curl.h>
29:
30: CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_OS_ERRNO, long *errnop);
31: .SH DESCRIPTION
32: Pass a pointer to a long to receive the errno variable from a connect failure.
33: Note that the value is only set on failure, it is not reset upon a successful
34: operation. The number is OS and system specific.
35: .SH PROTOCOLS
36: All
37: .SH EXAMPLE
38: .nf
39: CURL *curl = curl_easy_init();
40: if(curl) {
41: CURLcode res;
42: curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
43: res = curl_easy_perform(curl);
44: if(res != CURLE_OK) {
45: long error;
46: res = curl_easy_getinfo(curl, CURLINFO_OS_ERRNO, &error);
47: if(res && error) {
48: printf("Errno: %ld\\n", error);
49: }
50: }
51: curl_easy_cleanup(curl);
52: }
53: .fi
54: .SH AVAILABILITY
55: Added in 7.12.2
56: .SH RETURN VALUE
57: Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
58: .SH "SEE ALSO"
59: .BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), "
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