38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
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#include <sys/types.h>
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#include <sys/xattr.h> /* include header from libc, not from libattr */
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#include <string.h>
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#include <curl/curl.h>
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#include "xattr.h"
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/* mapping table of curl metadata to extended attribute names */
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static struct xattr_mapping {
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char *attr; /* name of the xattr */
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CURLINFO info;
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} mappings[] = {
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/* mappings proposed by
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* http://freedesktop.org/wiki/CommonExtendedAttributes
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*/
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{ "user.xdg.origin.url", CURLINFO_EFFECTIVE_URL },
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{ "user.mime_type", CURLINFO_CONTENT_TYPE },
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{ NULL, 0 } /* last element, abort loop here */
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};
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/* store metadata from the curl request alongside the downloaded
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* file using extended attributes
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*/
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int write_xattr( CURL *curl, const char *filename )
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{
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int i = 0;
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int err = 0;
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/* loop through all xattr-curlinfo pairs and abort on error */
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while ( err == 0 && mappings[i].attr != NULL ) {
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char *value = NULL;
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curl_easy_getinfo(curl, mappings[i].info, &value);
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if (value) {
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err = setxattr( filename, mappings[i].attr, value, strlen(value), 0 );
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}
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i++;
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}
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return err;
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}
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