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/*
This file is part of libmicrohttpd
(C) 2007 Christian Grothoff
libmicrohttpd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
libmicrohttpd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libmicrohttpd; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file curl_version_check.c
* @brief verify required cURL version is available to run tests
* @author Sagie Amir
*/
#include "config.h"
#include "platform.h"
#include <curl/curl.h>
#include <microhttpd.h>
#include "internal.h"
#ifndef WINDOWS
#include <unistd.h>
#endif
static int
parse_version_number (const char **s)
{
int i = 0;
char num[17];
while (i < 16 && ((**s >= '0') & (**s <= '9')))
{
num[i] = **s;
(*s)++;
i++;
}
num[i] = '\0';
return atoi (num);
}
const char *
parse_version_string (const char *s, int *major, int *minor, int *micro)
{
*major = parse_version_number (&s);
if (!s || *s != '.')
return NULL;
s++;
*minor = parse_version_number (&s);
if (!s || *s != '.')
return NULL;
s++;
*micro = parse_version_number (&s);
if (!s)
return NULL;
return s;
}
/*
* check local libcurl version matches required version
*/
int
curl_check_version (const char *req_version)
{
const char *ver;
const char *curl_ver;
const char *ssl_ver;
const char *req_ssl_ver;
int loc_major, loc_minor, loc_micro;
int rq_major, rq_minor, rq_micro;
ver = curl_version ();
#if HAVE_MESSAGES
fprintf (stderr, "curl version: %s\n", ver);
#endif
/*
* this call relies on the cURL string to be of the exact following format :
* 'libcurl/7.16.4 OpenSSL/0.9.8g zlib/1.2.3.3 libidn/0.6.5' OR
* 'libcurl/7.18.2 GnuTLS/2.4.0 zlib/1.2.3.3 libidn/0.6.5'
*/
curl_ver = strchr (ver, '/') + 1;
/* Parse version numbers */
parse_version_string (req_version, &rq_major, &rq_minor, &rq_micro);
parse_version_string (curl_ver, &loc_major, &loc_minor, &loc_micro);
/* Compare version numbers. */
if ((loc_major > rq_major
|| (loc_major == rq_major && loc_minor > rq_minor)
|| (loc_major == rq_major && loc_minor == rq_minor
&& loc_micro > rq_micro) || (loc_major == rq_major
&& loc_minor == rq_minor
&& loc_micro == rq_micro)) == 0)
{
fprintf (stderr,
"Error: running curl test depends on local libcurl version > %s\n",
req_version);
return -1;
}
/*
* enforce required gnutls/openssl version.
* TODO use curl version string to assert use of gnutls
*/
#if HTTPS_SUPPORT
ssl_ver = strchr (curl_ver, ' ') + 1;
if (strncmp ("GnuTLS", ssl_ver, strlen ("GNUtls")) == 0)
{
ssl_ver = strchr (ssl_ver, '/') + 1;
req_ssl_ver = MHD_REQ_CURL_GNUTLS_VERSION;
}
else if (strncmp ("OpenSSL", ssl_ver, strlen ("OpenSSL")) == 0)
{
ssl_ver = strchr (ssl_ver, '/') + 1;
req_ssl_ver = MHD_REQ_CURL_OPENSSL_VERSION;
}
else
{
fprintf (stderr, "Error: unrecognized curl ssl library\n");
return -1;
}
parse_version_string (req_ssl_ver, &rq_major, &rq_minor, &rq_micro);
parse_version_string (ssl_ver, &loc_major, &loc_minor, &loc_micro);
if ((loc_major > rq_major
|| (loc_major == rq_major && loc_minor > rq_minor)
|| (loc_major == rq_major && loc_minor == rq_minor
&& loc_micro > rq_micro) || (loc_major == rq_major
&& loc_minor == rq_minor
&& loc_micro == rq_micro)) == 0)
{
fprintf (stderr,
"Error: running curl test depends on local libcurl SSL version > %s\n",
req_ssl_ver);
return -1;
}
#endif
return 0;
}
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