from small one page howto to huge articles all in one place
 

search text in:





Poll
What does your sytem tell when running "ulimit -u"?








poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

110936

userrating:

average rating: 1.7 (85 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

224834

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

105066

userrating:

average rating: 1.3 (28 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





CURLOPT_ERRORBUFFER

Section: curl_easy_setopt options (3)
Updated: February 03, 2016
Index Return to Main Contents

 

NAME

CURLOPT_ERRORBUFFER - set error buffer for error messages  

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ERRORBUFFER, char *buf);  

DESCRIPTION

Pass a char * to a buffer that the libcurl may store human readable error messages in on failures or problems. This may be more helpful than just the return code from curl_easy_perform(3) and related functions. The buffer must be at least CURL_ERROR_SIZE bytes big.

You must keep the associated buffer available until libcurl no longer needs it. Failing to do so will cause very odd behavior or even crashes. libcurl will need it until you call curl_easy_cleanup(3) or you set the same option again to use a different pointer.

Consider CURLOPT_VERBOSE(3) and CURLOPT_DEBUGFUNCTION(3) to better debug and trace why errors happen.

If the library does not return an error, the buffer may not have been touched. Do not rely on the contents in those cases.  

DEFAULT

NULL  

PROTOCOLS

All  

EXAMPLE

curl = curl_easy_init();
if(curl) {
  CURLcode res;
  char errbuf[CURL_ERROR_SIZE];

  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

  /* provide a buffer to store errors in */
  curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);

  /* set the error buffer as empty before performing a request */
  errbuf[0] = 0;

  /* perform the request */
  res = curl_easy_perform(curl);

  /* if the request did not complete correctly, show the error
  information. if no detailed error information was written to errbuf
  show the more generic information from curl_easy_strerror instead.
  */
  if(res != CURLE_OK) {
    size_t len = strlen(errbuf);
    fprintf(stderr, "\nlibcurl: (%d) ", res);
    if(len)
      fprintf(stderr, "%s%s", errbuf,
              ((errbuf[len - 1] != '\n') ? "\n" : ""));
    else
      fprintf(stderr, "%s\n", curl_easy_strerror(res));
  }
}
 

AVAILABILITY

Always  

RETURN VALUE

Returns CURLE_OK  

SEE ALSO

CURLOPT_DEBUGFUNCTION(3), CURLOPT_VERBOSE(3), curl_easy_strerror(3), curl_multi_strerror(3), curl_share_strerror(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
DEFAULT
PROTOCOLS
EXAMPLE
AVAILABILITY
RETURN VALUE
SEE ALSO


Please read "Why adblockers are bad".



Other free services
toURL.org
Shorten long
URLs to short
links like
http://tourl.org/2
tourl.org
.
Reverse DNS lookup
Find out which hostname(s)
resolve to a
given IP or other hostnames for the server
www.reversednslookup.org
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2017 Sascha Nitsch Unternehmensberatung UG(haftungsbeschränkt)
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 2.6 ms