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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#ifdef HAVE_FSETXATTR
# include <sys/xattr.h> /* header from libc, not from libattr */
# define USE_XATTR
#elif defined(__FreeBSD_version) && (__FreeBSD_version > 500000)
# include <sys/types.h>
# include <sys/extattr.h>
# define USE_XATTR
#endif
#include "tool_xattr.h"
#include "memdebug.h" /* keep this as LAST include */
#ifdef USE_XATTR
/* mapping table of curl metadata to extended attribute names */
static const struct xattr_mapping {
const char *attr; /* name of the xattr */
CURLINFO info;
} mappings[] = {
/* mappings proposed by
* http://freedesktop.org/wiki/CommonExtendedAttributes
*/
{ "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL },
{ "user.mime_type", CURLINFO_CONTENT_TYPE },
{ NULL, CURLINFO_NONE } /* last element, abort loop here */
};
/* store metadata from the curl request alongside the downloaded
* file using extended attributes
*/
int fwrite_xattr(CURL *curl, int fd)
{
int i = 0;
int err = 0;
/* loop through all xattr-curlinfo pairs and abort on a set error */
while(err == 0 && mappings[i].attr != NULL) {
char *value = NULL;
CURLcode rc = curl_easy_getinfo(curl, mappings[i].info, &value);
if(rc == CURLE_OK && value) {
#ifdef HAVE_FSETXATTR_6
err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0, 0);
#elif defined(HAVE_FSETXATTR_5)
err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0);
#elif defined(__FreeBSD_version)
err = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, mappings[i].attr, value,
strlen(value));
/* FreeBSD's extattr_set_fd returns the length of the extended attribute
*/
err = err < 0 ? err : 0;
#endif
}
i++;
}
return err;
}
#else
int fwrite_xattr(CURL *curl, int fd)
{
(void)curl;
(void)fd;
return 0;
}
#endif
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