[331] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 | #include "tool_setup.h"
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| 23 |
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| 24 | #ifdef HAVE_FSETXATTR
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| 25 | # include <sys/xattr.h> /* header from libc, not from libattr */
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| 26 | # define USE_XATTR
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| 27 | #elif defined(__FreeBSD_version) && (__FreeBSD_version > 500000)
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| 28 | # include <sys/types.h>
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| 29 | # include <sys/extattr.h>
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| 30 | # define USE_XATTR
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| 31 | #endif
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| 32 |
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| 33 | #include "tool_xattr.h"
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| 34 |
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| 35 | #include "memdebug.h" /* keep this as LAST include */
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| 36 |
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| 37 | #ifdef USE_XATTR
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| 38 |
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| 39 | /* mapping table of curl metadata to extended attribute names */
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| 40 | static const struct xattr_mapping {
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| 41 | const char *attr; /* name of the xattr */
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| 42 | CURLINFO info;
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| 43 | } mappings[] = {
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| 44 | /* mappings proposed by
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| 45 | * https://freedesktop.org/wiki/CommonExtendedAttributes/
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| 46 | */
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| 47 | { "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL },
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| 48 | { "user.mime_type", CURLINFO_CONTENT_TYPE },
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| 49 | { NULL, CURLINFO_NONE } /* last element, abort loop here */
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| 50 | };
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| 51 |
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| 52 | /* store metadata from the curl request alongside the downloaded
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| 53 | * file using extended attributes
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| 54 | */
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| 55 | int fwrite_xattr(CURL *curl, int fd)
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| 56 | {
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| 57 | int i = 0;
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| 58 | int err = 0;
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| 59 |
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| 60 | /* loop through all xattr-curlinfo pairs and abort on a set error */
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| 61 | while(err == 0 && mappings[i].attr != NULL) {
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| 62 | char *value = NULL;
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| 63 | CURLcode result = curl_easy_getinfo(curl, mappings[i].info, &value);
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| 64 | if(!result && value) {
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| 65 | #ifdef HAVE_FSETXATTR_6
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| 66 | err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0, 0);
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| 67 | #elif defined(HAVE_FSETXATTR_5)
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| 68 | err = fsetxattr(fd, mappings[i].attr, value, strlen(value), 0);
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| 69 | #elif defined(__FreeBSD_version)
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| 70 | err = extattr_set_fd(fd, EXTATTR_NAMESPACE_USER, mappings[i].attr, value,
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| 71 | strlen(value));
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| 72 | /* FreeBSD's extattr_set_fd returns the length of the extended attribute
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| 73 | */
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| 74 | err = err < 0 ? err : 0;
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| 75 | #endif
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| 76 | }
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| 77 | i++;
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| 78 | }
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| 79 |
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| 80 | return err;
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| 81 | }
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| 82 | #else
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| 83 | int fwrite_xattr(CURL *curl, int fd)
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| 84 | {
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| 85 | (void)curl;
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| 86 | (void)fd;
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| 87 |
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| 88 | return 0;
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| 89 | }
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| 90 | #endif
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