| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /*************************************************************************** |
| 2 | * _ _ ____ _ |
| 3 | * Project ___| | | | _ \| | |
| 4 | * / __| | | | |_) | | |
| 5 | * | (__| |_| | _ <| |___ |
| 6 | * \___|\___/|_| \_\_____| |
| 7 | * |
| 8 | * Copyright (C) 1998 - 2014, 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 https://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 | # define USE_XATTR |
| 27 | #elif defined(__FreeBSD_version) && (__FreeBSD_version > 500000) |
| 28 | # include <sys/types.h> |
| 29 | # include <sys/extattr.h> |
| 30 | # define USE_XATTR |
| 31 | #endif |
| 32 | |
| 33 | #include "tool_xattr.h" |
| 34 | |
| 35 | #include "memdebug.h" /* keep this as LAST include */ |
| 36 | |
| 37 | #ifdef USE_XATTR |
| 38 | |
| 39 | /* mapping table of curl metadata to extended attribute names */ |
| 40 | static const struct xattr_mapping { |
| 41 | const char *attr; /* name of the xattr */ |
| 42 | CURLINFO info; |
| 43 | } mappings[] = { |
| 44 | /* mappings proposed by |
| 45 | * http://freedesktop.org/wiki/CommonExtendedAttributes |
| 46 | */ |
| 47 | { "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL }, |
| 48 | { "user.mime_type", CURLINFO_CONTENT_TYPE }, |
| 49 | { NULL, CURLINFO_NONE } /* last element, abort loop here */ |
| 50 | }; |
| 51 | |
| 52 | /* store metadata from the curl request alongside the downloaded |
| 53 | * file using extended attributes |
| 54 | */ |
| 55 | int fwrite_xattr(CURL *curl, int fd) |
| 56 | { |
| 57 | int i = 0; |
| 58 | int err = 0; |
| 59 | |
| 60 | /* loop through all xattr-curlinfo pairs and abort on a set error */ |
| 61 | while(err == 0 && mappings[i].attr != NULL) { |
| 62 | char *value = NULL; |
| 63 | CURLcode result = curl_easy_getinfo(curl, mappings[i].info, &value); |
| 64 | if(!result && value) { |
| 65 | #ifdef HAVE_FSETXATTR_6 |
| 66 | err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0, 0); |
| 67 | #elif defined(HAVE_FSETXATTR_5) |
| 68 | err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0); |
| 69 | #elif defined(__FreeBSD_version) |
| 70 | err = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, mappings[i].attr, value, |
| 71 | strlen(value)); |
| 72 | /* FreeBSD's extattr_set_fd returns the length of the extended attribute |
| 73 | */ |
| 74 | err = err < 0 ? err : 0; |
| 75 | #endif |
| 76 | } |
| 77 | i++; |
| 78 | } |
| 79 | |
| 80 | return err; |
| 81 | } |
| 82 | #else |
| 83 | int fwrite_xattr(CURL *curl, int fd) |
| 84 | { |
| 85 | (void)curl; |
| 86 | (void)fd; |
| 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | #endif |