1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 2010, 2011, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23/* client-local setup.h */ 24#include "setup.h" 25#include <curl/curl.h> 26#include "xattr.h" 27 28#ifdef HAVE_FSETXATTR 29#include <sys/types.h> 30#include <string.h> 31#include <sys/xattr.h> /* include header from libc, not from libattr */ 32 33/* mapping table of curl metadata to extended attribute names */ 34static const struct xattr_mapping { 35 const char *attr; /* name of the xattr */ 36 CURLINFO info; 37} mappings[] = { 38 /* mappings proposed by 39 * http://freedesktop.org/wiki/CommonExtendedAttributes 40 */ 41 { "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL }, 42 { "user.mime_type", CURLINFO_CONTENT_TYPE }, 43 { NULL, CURLINFO_NONE } /* last element, abort loop here */ 44}; 45 46/* store metadata from the curl request alongside the downloaded 47 * file using extended attributes 48 */ 49int fwrite_xattr(CURL *curl, int fd) 50{ 51 int i = 0; 52 int err = 0; 53 /* loop through all xattr-curlinfo pairs and abort on a set error */ 54 while(err == 0 && mappings[i].attr != NULL) { 55 char *value = NULL; 56 CURLcode rc = curl_easy_getinfo(curl, mappings[i].info, &value); 57 if(rc == CURLE_OK && value) { 58#ifdef HAVE_FSETXATTR_6 59 err = fsetxattr( fd, mappings[i].attr, value, strlen(value), 0, 0 ); 60#elif defined(HAVE_FSETXATTR_5) 61 err = fsetxattr( fd, mappings[i].attr, value, strlen(value), 0 ); 62#endif 63 } 64 i++; 65 } 66 return err; 67} 68#else 69int fwrite_xattr(CURL *curl, int fd) 70{ 71 (void)curl; 72 (void)fd; 73 return 0; 74} 75#endif 76