Georg Horn's Curl::easy interface for perl

7 files changed, 612 insertions, 0 deletions

diff --git a/perl/Curl_easy/Changes b/perl/Curl_easy/Changes
new file mode 100644
index 000000000..a38cc34a4
--- /dev/null
+++ b/perl/Curl_easy/Changes
@@ -0,0 +1,35 @@
+Revision history for Perl extension Curl::easy.
+Check out the file README for more info.
+
+1.0.2  Tue Oct 10 2000:
+    - runs with libcurl 7.4
+    - modified curl_easy_getinfo(). It now calls curl_getinfo() that has
+      been added to libcurl in version 7.4.
+
+1.0.1  Tue Oct 10 2000:
+    - Added some missing features of curl_easy_setopt():
+      - CURLOPT_ERRORBUFFER now works by passing the name of a perl
+        variable that shall be crated and the errormessage (if any)
+	be stored to.
+      - Passing filehandles (Options FILE, INFILE and WRITEHEADER) now works.
+    Have a look at test.pl to see how it works...
+
+    - Added a new function, curl_easy_getinfo(), that for now always
+      returns the number of bytes that where written to disk during the last
+      download. If the curl_easy_getinfo() function is included in libcurl,
+      (as promised by Daniel ;-)) i will turn this into just a call to this
+      function.
+
+1.0  Thu Oct 5 2000:
+    - first released version
+    - runs with libcurl 7.3
+    - some features of curl_easy_setopt() are still missing:
+      - passing function pointers doesn't work (options WRITEFUNCTION,
+	READFUNCTION and PROGRESSFUNCTION).
+      - passing FILE * pointers doesn't work (options FILE, INFILE and
+	WRITEHEADER).
+      - passing linked lists doesn't work (options HTTPHEADER and
+	HTTPPOST).
+      - setting the buffer where to store error messages in doesn't work
+	(option ERRORBUFFER).
+
diff --git a/perl/Curl_easy/MANIFEST b/perl/Curl_easy/MANIFEST
new file mode 100644
index 000000000..b106c934b
--- /dev/null
+++ b/perl/Curl_easy/MANIFEST
@@ -0,0 +1,6 @@
+Changes
+MANIFEST
+Makefile.PL
+easy.pm
+easy.xs
+test.pl
diff --git a/perl/Curl_easy/Makefile.PL b/perl/Curl_easy/Makefile.PL
new file mode 100644
index 000000000..58a8528ad
--- /dev/null
+++ b/perl/Curl_easy/Makefile.PL
@@ -0,0 +1,14 @@
+# Makefile.PL for Perl extension Curl::easy.
+# Check out the file README for more info.
+
+use ExtUtils::MakeMaker;
+# See lib/ExtUtils/MakeMaker.pm for details of how to influence
+# the contents of the Makefile that is written.
+WriteMakefile(
+    'NAME'	=> 'Curl::easy',
+    'VERSION_FROM' => 'easy.pm', # finds $VERSION
+    'LIBS'	=> ['-lcurl '],   # e.g., '-lm' 
+    'DEFINE'	=> '',     # e.g., '-DHAVE_SOMETHING' 
+    'INC'	=> '',     # e.g., '-I/usr/include/other' 
+    'clean'	=> {FILES => "head.out body.out"}
+);
diff --git a/perl/Curl_easy/README b/perl/Curl_easy/README
new file mode 100644
index 000000000..2eee408a0
--- /dev/null
+++ b/perl/Curl_easy/README
@@ -0,0 +1,27 @@
+README for Perl extension Curl::easy.
+
+The perl module Curl::easy provides an interface to the cURL library "libcurl".
+See http://curl.haxx.se/ for more information on cURL and libcurl.
+
+This module requires libcurl and the corresponding headerfiles to be
+installed. You then may install this module via the usual way:
+
+    perl Makefile.PL
+    make
+    make test
+    make install
+
+The module provides the same functionality as libcurl provides to C programs,
+please refer to the documentation of libcurl.
+
+A short example how to use the module may be found in test.pl.
+
+This Software is distributed AS IS, WITHOUT WARRANTY OF ANY KIND,
+either express or implied. Send praise, patches, money, beer and
+pizza to the author. Send complaints to /dev/null. ;-)
+
+The author of this module is Georg Horn <horn@koblenz-net.de>
+
+The latest version of this module can be dowloaded from
+http://koblenz-net.de/~horn/export/
+
diff --git a/perl/Curl_easy/easy.pm b/perl/Curl_easy/easy.pm
new file mode 100644
index 000000000..126be14a9
--- /dev/null
+++ b/perl/Curl_easy/easy.pm
@@ -0,0 +1,139 @@
+# Perl interface for libcurl. Check out the file README for more info.
+
+package Curl::easy;
+
+use strict;
+use Carp;
+use vars qw($VERSION @ISA @EXPORT @EXPORT_OK $AUTOLOAD);
+
+require Exporter;
+require DynaLoader;
+require AutoLoader;
+
+@ISA = qw(Exporter DynaLoader);
+# Items to export into callers namespace by default. Note: do not export
+# names by default without a very good reason. Use EXPORT_OK instead.
+# Do not simply export all your public functions/methods/constants.
+@EXPORT = qw(
+CURLOPT_AUTOREFERER
+CURLOPT_COOKIE
+CURLOPT_COOKIEFILE
+CURLOPT_CRLF
+CURLOPT_CUSTOMREQUEST
+CURLOPT_ERRORBUFFER
+CURLOPT_FAILONERROR
+CURLOPT_FILE
+CURLOPT_FOLLOWLOCATION
+CURLOPT_FTPAPPEND
+CURLOPT_FTPASCII
+CURLOPT_FTPLISTONLY
+CURLOPT_FTPPORT
+CURLOPT_HEADER
+CURLOPT_HTTPHEADER
+CURLOPT_HTTPPOST
+CURLOPT_HTTPPROXYTUNNEL
+CURLOPT_HTTPREQUEST
+CURLOPT_INFILE
+CURLOPT_INFILESIZE
+CURLOPT_INTERFACE
+CURLOPT_KRB4LEVEL
+CURLOPT_LOW_SPEED_LIMIT
+CURLOPT_LOW_SPEED_TIME
+CURLOPT_MUTE
+CURLOPT_NETRC
+CURLOPT_NOBODY
+CURLOPT_NOPROGRESS
+CURLOPT_NOTHING
+CURLOPT_PORT
+CURLOPT_POST
+CURLOPT_POSTFIELDS
+CURLOPT_POSTFIELDSIZE
+CURLOPT_POSTQUOTE
+CURLOPT_PROGRESSDATA
+CURLOPT_PROGRESSFUNCTION
+CURLOPT_PROXY
+CURLOPT_PROXYPORT
+CURLOPT_PROXYUSERPWD
+CURLOPT_PUT
+CURLOPT_QUOTE
+CURLOPT_RANGE
+CURLOPT_READFUNCTION
+CURLOPT_REFERER
+CURLOPT_RESUME_FROM
+CURLOPT_SSLCERT
+CURLOPT_SSLCERTPASSWD
+CURLOPT_SSLVERSION
+CURLOPT_STDERR
+CURLOPT_TIMECONDITION
+CURLOPT_TIMEOUT
+CURLOPT_TIMEVALUE
+CURLOPT_TRANSFERTEXT
+CURLOPT_UPLOAD
+CURLOPT_URL
+CURLOPT_USERAGENT
+CURLOPT_USERPWD
+CURLOPT_VERBOSE
+CURLOPT_WRITEFUNCTION
+CURLOPT_WRITEHEADER
+
+CURLINFO_EFFECTIVE_URL
+CURLINFO_HTTP_CODE
+CURLINFO_TOTAL_TIME
+CURLINFO_NAMELOOKUP_TIME
+CURLINFO_CONNECT_TIME
+CURLINFO_PRETRANSFER_TIME
+CURLINFO_SIZE_UPLOAD
+CURLINFO_SIZE_DOWNLOAD
+CURLINFO_SPEED_DOWNLOAD
+CURLINFO_SPEED_UPLOAD
+CURLINFO_HEADER_SIZE
+CURLINFO_REQUEST_SIZE
+);
+$VERSION = '1.0.1';
+
+sub AUTOLOAD {
+    # This AUTOLOAD is used to 'autoload' constants from the constant()
+    # XS function.
+
+    (my $constname = $AUTOLOAD) =~ s/.*:://;
+    return constant($constname, 0);
+}
+
+bootstrap Curl::easy $VERSION;
+
+# Preloaded methods go here.
+
+# Autoload methods go after =cut, and are processed by the autosplit program.
+
+1;
+__END__
+# Below is the stub of documentation for your module. You better edit it!
+
+=head1 NAME
+
+Curl::easy - Perl extension for libcurl
+
+=head1 SYNOPSIS
+
+  use Curl::easy;
+  
+  $CURL = curl_easy_init();
+  $CURLcode = curl_easy_setopt($CURL, CURLoption, Value);
+  $CURLcode = curl_easy_perform($CURL);
+  curl_easy_cleanup($CURL);
+  
+
+=head1 DESCRIPTION
+
+This perl module provides an interface to the libcurl C library. See
+http://curl.haxx.se/ for more information on cURL and libcurl.
+
+=head1 AUTHOR
+
+Georg Horn <horn@koblenz-net.de>
+
+=head1 SEE ALSO
+
+http://curl.haxx.se/
+
+=cut
diff --git a/perl/Curl_easy/easy.xs b/perl/Curl_easy/easy.xs
new file mode 100644
index 000000000..2fedd904d
--- /dev/null
+++ b/perl/Curl_easy/easy.xs
@@ -0,0 +1,290 @@
+/* Perl interface for libcurl. Check out the file README for more info. */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+
+#include <curl/curl.h>
+#include <curl/easy.h>
+
+
+/* Buffer and varname for option CURLOPT_ERRORBUFFER */
+
+static char errbuf[CURL_ERROR_SIZE];
+static char *errbufvarname = NULL;
+
+
+static int
+constant(char *name, int arg)
+{
+    errno = 0;
+    if (strncmp(name, "CURLINFO_", 9) == 0) {
+	name += 9;
+	switch (*name) {
+	case 'A':
+	case 'B':
+	case 'C':
+	case 'D':
+	    if (strEQ(name, "CONNECT_TIME")) return CURLINFO_CONNECT_TIME;
+	    break;
+	case 'E':
+	case 'F':
+	    if (strEQ(name, "EFFECTIVE_URL")) return CURLINFO_EFFECTIVE_URL;
+	    break;
+	case 'G':
+	case 'H':
+	    if (strEQ(name, "HEADER_SIZE")) return CURLINFO_HEADER_SIZE;
+	    if (strEQ(name, "HTTP_CODE")) return CURLINFO_HTTP_CODE;
+	    break;
+	case 'I':
+	case 'J':
+	case 'K':
+	case 'L':
+	case 'M':
+	case 'N':
+	    if (strEQ(name, "NAMELOOKUP_TIME")) return CURLINFO_NAMELOOKUP_TIME;
+	    break;
+	case 'O':
+	case 'P':
+	    if (strEQ(name, "PRETRANSFER_TIME")) return CURLINFO_PRETRANSFER_TIME;
+	    break;
+	case 'Q':
+	case 'R':
+	    if (strEQ(name, "REQUEST_SIZE")) return CURLINFO_REQUEST_SIZE;
+	    break;
+	case 'S':
+	case 'T':
+	    if (strEQ(name, "SIZE_DOWNLOAD")) return CURLINFO_SIZE_DOWNLOAD;
+	    if (strEQ(name, "SIZE_UPLOAD")) return CURLINFO_SIZE_UPLOAD;
+	    if (strEQ(name, "SPEED_DOWNLOAD")) return CURLINFO_SPEED_DOWNLOAD;
+	    if (strEQ(name, "SPEED_UPLOAD")) return CURLINFO_SPEED_UPLOAD;
+	    if (strEQ(name, "TOTAL_TIME")) return CURLINFO_TOTAL_TIME;
+	    break;
+	case 'U':
+	case 'V':
+	case 'W':
+	case 'X':
+	case 'Y':
+	case 'Z':
+	    break;
+	}
+    }
+    if (strncmp(name, "CURLOPT_", 8) == 0) {
+	name += 8;
+	switch (*name) {
+	case 'A':
+	case 'B':
+	    if (strEQ(name, "AUTOREFERER")) return CURLOPT_AUTOREFERER;
+	    break;
+	case 'C':
+	case 'D':
+	    if (strEQ(name, "COOKIE")) return CURLOPT_COOKIE;
+	    if (strEQ(name, "COOKIEFILE")) return CURLOPT_COOKIEFILE;
+	    if (strEQ(name, "CRLF")) return CURLOPT_CRLF;
+	    if (strEQ(name, "CUSTOMREQUEST")) return CURLOPT_CUSTOMREQUEST;
+	    break;
+	case 'E':
+	case 'F':
+	    if (strEQ(name, "ERRORBUFFER")) return CURLOPT_ERRORBUFFER;
+	    if (strEQ(name, "FAILONERROR")) return CURLOPT_FAILONERROR;
+	    if (strEQ(name, "FILE")) return CURLOPT_FILE;
+	    if (strEQ(name, "FOLLOWLOCATION")) return CURLOPT_FOLLOWLOCATION;
+	    if (strEQ(name, "FTPAPPEND")) return CURLOPT_FTPAPPEND;
+	    if (strEQ(name, "FTPASCII")) return CURLOPT_FTPASCII;
+	    if (strEQ(name, "FTPLISTONLY")) return CURLOPT_FTPLISTONLY;
+	    if (strEQ(name, "FTPPORT")) return CURLOPT_FTPPORT;
+	    break;
+	case 'G':
+	case 'H':
+	    if (strEQ(name, "HEADER")) return CURLOPT_HEADER;
+	    if (strEQ(name, "HTTPHEADER")) return CURLOPT_HTTPHEADER;
+	    if (strEQ(name, "HTTPPOST")) return CURLOPT_HTTPPOST;
+	    if (strEQ(name, "HTTPPROXYTUNNEL")) return CURLOPT_HTTPPROXYTUNNEL;
+	    if (strEQ(name, "HTTPREQUEST")) return CURLOPT_HTTPREQUEST;
+	    break;
+	case 'I':
+	case 'J':
+	    if (strEQ(name, "INFILE")) return CURLOPT_INFILE;
+	    if (strEQ(name, "INFILESIZE")) return CURLOPT_INFILESIZE;
+	    if (strEQ(name, "INTERFACE")) return CURLOPT_INTERFACE;
+	    break;
+	case 'K':
+	case 'L':
+	    if (strEQ(name, "KRB4LEVEL")) return CURLOPT_KRB4LEVEL;
+	    if (strEQ(name, "LOW_SPEED_LIMIT")) return CURLOPT_LOW_SPEED_LIMIT;
+	    if (strEQ(name, "LOW_SPEED_TIME")) return CURLOPT_LOW_SPEED_TIME;
+	    break;
+	case 'M':
+	case 'N':
+	    if (strEQ(name, "MUTE")) return CURLOPT_MUTE;
+	    if (strEQ(name, "NETRC")) return CURLOPT_NETRC;
+	    if (strEQ(name, "NOBODY")) return CURLOPT_NOBODY;
+	    if (strEQ(name, "NOPROGRESS")) return CURLOPT_NOPROGRESS;
+	    if (strEQ(name, "NOTHING")) return CURLOPT_NOTHING;
+	    break;
+	case 'O':
+	case 'P':
+	    if (strEQ(name, "PORT")) return CURLOPT_PORT;
+	    if (strEQ(name, "POST")) return CURLOPT_POST;
+	    if (strEQ(name, "POSTFIELDS")) return CURLOPT_POSTFIELDS;
+	    if (strEQ(name, "POSTFIELDSIZE")) return CURLOPT_POSTFIELDSIZE;
+	    if (strEQ(name, "POSTQUOTE")) return CURLOPT_POSTQUOTE;
+	    if (strEQ(name, "PROGRESSDATA")) return CURLOPT_PROGRESSDATA;
+	    if (strEQ(name, "PROGRESSFUNCTION")) return CURLOPT_PROGRESSFUNCTION;
+	    if (strEQ(name, "PROXY")) return CURLOPT_PROXY;
+	    if (strEQ(name, "PROXYPORT")) return CURLOPT_PROXYPORT;
+	    if (strEQ(name, "PROXYUSERPWD")) return CURLOPT_PROXYUSERPWD;
+	    if (strEQ(name, "PUT")) return CURLOPT_PUT;
+	    break;
+	case 'Q':
+	case 'R':
+	    if (strEQ(name, "QUOTE")) return CURLOPT_QUOTE;
+	    if (strEQ(name, "RANGE")) return CURLOPT_RANGE;
+	    if (strEQ(name, "READFUNCTION")) return CURLOPT_READFUNCTION;
+	    if (strEQ(name, "REFERER")) return CURLOPT_REFERER;
+	    if (strEQ(name, "RESUME_FROM")) return CURLOPT_RESUME_FROM;
+	    break;
+	case 'S':
+	case 'T':
+	    if (strEQ(name, "SSLCERT")) return CURLOPT_SSLCERT;
+	    if (strEQ(name, "SSLCERTPASSWD")) return CURLOPT_SSLCERTPASSWD;
+	    if (strEQ(name, "SSLVERSION")) return CURLOPT_SSLVERSION;
+	    if (strEQ(name, "STDERR")) return CURLOPT_STDERR;
+	    if (strEQ(name, "TIMECONDITION")) return CURLOPT_TIMECONDITION;
+	    if (strEQ(name, "TIMEOUT")) return CURLOPT_TIMEOUT;
+	    if (strEQ(name, "TIMEVALUE")) return CURLOPT_TIMEVALUE;
+	    if (strEQ(name, "TRANSFERTEXT")) return CURLOPT_TRANSFERTEXT;
+	    break;
+	case 'U':
+	case 'V':
+	    if (strEQ(name, "UPLOAD")) return CURLOPT_UPLOAD;
+	    if (strEQ(name, "URL")) return CURLOPT_URL;
+	    if (strEQ(name, "USERAGENT")) return CURLOPT_USERAGENT;
+	    if (strEQ(name, "USERPWD")) return CURLOPT_USERPWD;
+	    if (strEQ(name, "VERBOSE")) return CURLOPT_VERBOSE;
+	    break;
+	case 'W':
+	case 'X':
+	case 'Y':
+	case 'Z':
+	    if (strEQ(name, "WRITEFUNCTION")) return CURLOPT_WRITEFUNCTION;
+	    if (strEQ(name, "WRITEHEADER")) return CURLOPT_WRITEHEADER;
+	    if (strEQ(name, "WRITEINFO")) return CURLOPT_WRITEINFO;
+	    break;
+	}
+    }
+    errno = EINVAL;
+    return 0;
+}
+
+
+MODULE = Curl::easy		PACKAGE = Curl::easy		
+
+int
+constant(name,arg)
+    char * name
+    int arg
+
+
+void *
+curl_easy_init()
+CODE:
+    if (errbufvarname) free(errbufvarname);
+    errbufvarname = NULL;
+    RETVAL = curl_easy_init();
+OUTPUT:
+    RETVAL
+
+
+int
+curl_easy_setopt(curl, option, value)
+void * curl
+int option
+char * value
+CODE:
+    if (option < CURLOPTTYPE_OBJECTPOINT) {
+	/* This is an option specifying an integer value: */
+	long value = (long)SvIV(ST(2));
+	RETVAL = curl_setopt(curl, option, value);
+    } else if (option == CURLOPT_FILE || option == CURLOPT_INFILE ||
+	    option == CURLOPT_WRITEHEADER) {
+	/* This is an option specifying a FILE * value: */
+	FILE * value = IoIFP(sv_2io(ST(2)));
+	RETVAL = curl_setopt(curl, option, value);
+    } else if (option == CURLOPT_ERRORBUFFER) {
+	SV *sv;
+	RETVAL = curl_setopt(curl, option, errbuf);
+	if (errbufvarname) free(errbufvarname);
+	errbufvarname = strdup(value);
+	sv = perl_get_sv(errbufvarname, TRUE | GV_ADDMULTI);
+    } else if (option == CURLOPT_WRITEFUNCTION || option ==
+	    CURLOPT_READFUNCTION || option == CURLOPT_PROGRESSFUNCTION) {
+	/* This is an option specifying a callback function */
+	/* not yet implemented */
+	RETVAL = -1;
+    } else {
+	/* default, option specifying a char * value: */
+	RETVAL = curl_setopt(curl, option, value);
+    }
+OUTPUT:
+    RETVAL
+
+
+int
+curl_easy_perform(curl)
+void * curl 
+CODE:
+    RETVAL = curl_easy_perform(curl);
+    if (RETVAL && errbufvarname) {
+	SV *sv = perl_get_sv(errbufvarname, TRUE | GV_ADDMULTI);
+	sv_setpv(sv, errbuf);
+    }
+OUTPUT:
+    RETVAL
+
+
+int
+curl_easy_getinfo(curl, option, value)
+void * curl
+int option
+double value
+CODE:
+    switch (option & CURLINFO_TYPEMASK) {
+	case CURLINFO_STRING: {
+	    char * value = (char *)SvPV(ST(2), PL_na);
+	    RETVAL = curl_getinfo(curl, option, &value);
+	    sv_setpv(ST(2), value);
+	    break;
+	}
+	case CURLINFO_LONG: {
+	    long value = (long)SvIV(ST(2));
+	    RETVAL = curl_getinfo(curl, option, &value);
+	    sv_setiv(ST(2), value);
+	    break;
+	}
+	case CURLINFO_DOUBLE: {
+	    double value = (double)SvNV(ST(2));
+	    RETVAL = curl_getinfo(curl, option, &value);
+	    sv_setnv(ST(2), value);
+	    break;
+	}
+	default: {
+	    RETVAL = CURLE_BAD_FUNCTION_ARGUMENT;
+	    break;
+	}
+    }
+OUTPUT:
+    RETVAL
+
+
+int
+curl_easy_cleanup(curl)
+void * curl 
+CODE:
+    curl_easy_cleanup(curl);
+    if (errbufvarname) free(errbufvarname);
+    errbufvarname = NULL;
+    RETVAL = 0;
+OUTPUT:
+    RETVAL
+
diff --git a/perl/Curl_easy/test.pl b/perl/Curl_easy/test.pl
new file mode 100644
index 000000000..a93b05692
--- /dev/null
+++ b/perl/Curl_easy/test.pl
@@ -0,0 +1,101 @@
+# Test script for Perl extension Curl::easy.
+# Check out the file README for more info.
+
+# Before `make install' is performed this script should be runnable with
+# `make test'. After `make install' it should work as `perl test.pl'
+
+######################### We start with some black magic to print on failure.
+
+# Change 1..1 below to 1..last_test_to_print .
+# (It may become useful if the test is moved to ./t subdirectory.)
+
+BEGIN { $| = 1; print "1..5\n"; }
+END {print "not ok 1\n" unless $loaded;}
+use Curl::easy;
+$loaded = 1;
+print "ok 1\n";
+
+######################### End of black magic.
+
+# Insert your test code below (better if it prints "ok 13"
+# (correspondingly "not ok 13") depending on the success of chunk 13
+# of the test code):
+
+# Read URL to get
+$defurl = "http://www/";
+$url = "";
+print "Please enter an URL to fetch [$defurl]: ";
+$url = <STDIN>;
+if ($url =~ /^\s*\n/) {
+    $url = $defurl;
+}
+
+# Use this for simple benchmarking
+#for ($i=0; $i<1000; $i++) {
+
+# Init the curl session
+if (($curl = Curl::easy::curl_easy_init()) != 0) {
+    print "ok 2\n";
+} else {
+    print "ko 2\n";
+}
+
+# Set URL to get
+if (Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_URL, $url) == 0) {
+    print "ok 3\n";
+} else {
+    print "ko 3\n";
+}
+
+# No progress meter please
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_NOPROGRESS, 1);
+
+# Shut up completely
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_MUTE, 1);
+
+# Follow location headers
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_FOLLOWLOCATION, 1);
+
+# Set timeout
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_TIMEOUT, 30);
+
+# Set file where to read cookies from
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_COOKIEFILE, "cookies");
+
+# Set file where to store the header
+open HEAD, ">head.out";
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_WRITEHEADER, HEAD);
+
+# Set file where to store the body
+open BODY, ">body.out";
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_FILE, BODY);
+
+# Store error messages in variable $errbuf
+# NOTE: The name of the variable is passed as a string!
+# curl_easy_setopt() creates a perl variable with that name, and
+# curl_easy_perform() stores the errormessage into it if an error occurs.
+Curl::easy::curl_easy_setopt($curl, Curl::easy::CURLOPT_ERRORBUFFER, "errbuf");
+
+# Go get it
+if (Curl::easy::curl_easy_perform($curl) == 0) {
+    Curl::easy::curl_easy_getinfo($curl, Curl::easy::CURLINFO_SIZE_DOWNLOAD, $bytes);
+    print "ok 4: $bytes bytes read\n";
+    print "check out the files head.out and body.out\n";
+    print "for the headers and content of the URL you just fetched...\n";
+    Curl::easy::curl_easy_getinfo($curl, Curl::easy::CURLINFO_EFFECTIVE_URL, $realurl);
+    Curl::easy::curl_easy_getinfo($curl, Curl::easy::CURLINFO_HTTP_CODE, $httpcode);
+    print "effective fetched url (http code: $httpcode) was: $url\n";
+} else {
+    # We can acces the error message in $errbuf here
+    print "ko 4: '$errbuf'\n";
+}
+
+# Cleanup
+close HEAD;
+close BODY;
+Curl::easy::curl_easy_cleanup($curl);
+print "ok 5\n";
+
+# Use this for simple benchmarking
+#}
+