1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2012, 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#include "tool_setup.h" 23 24#ifdef HAVE_FSETXATTR 25# include <sys/xattr.h> /* header from libc, not from libattr */ 26#endif 27 28#include "tool_xattr.h" 29 30#include "memdebug.h" /* keep this as LAST include */ 31 32#ifdef HAVE_FSETXATTR 33 34/* mapping table of curl metadata to extended attribute names */ 35static const struct xattr_mapping { 36 const char *attr; /* name of the xattr */ 37 CURLINFO info; 38} mappings[] = { 39 /* mappings proposed by 40 * http://freedesktop.org/wiki/CommonExtendedAttributes 41 */ 42 { "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL }, 43 { "user.mime_type", CURLINFO_CONTENT_TYPE }, 44 { NULL, CURLINFO_NONE } /* last element, abort loop here */ 45}; 46 47/* store metadata from the curl request alongside the downloaded 48 * file using extended attributes 49 */ 50int fwrite_xattr(CURL *curl, int fd) 51{ 52 int i = 0; 53 int err = 0; 54 /* loop through all xattr-curlinfo pairs and abort on a set error */ 55 while(err == 0 && mappings[i].attr != NULL) { 56 char *value = NULL; 57 CURLcode rc = curl_easy_getinfo(curl, mappings[i].info, &value); 58 if(rc == CURLE_OK && value) { 59#ifdef HAVE_FSETXATTR_6 60 err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0, 0); 61#elif defined(HAVE_FSETXATTR_5) 62 err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0); 63#endif 64 } 65 i++; 66 } 67 return err; 68} 69#else 70int fwrite_xattr(CURL *curl, int fd) 71{ 72 (void)curl; 73 (void)fd; 74 return 0; 75} 76#endif 77