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Merge branch '422-xattr-binary-data' into 'master'

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Fix support for binary xattrs

Closes #422

See merge request GNOME/glib!1568
This commit is contained in:
Philip Withnall 2020-07-25 17:13:55 +00:00
commit 50f8a9d32a
2 changed files with 74 additions and 8 deletions
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21
gio/glocalfileinfo.c
View File

@ -305,17 +305,15 @@ name_is_valid (const char *str)
}
static char *
hex_escape_string (const char *str,
hex_escape_buffer (const char *str,
size_t len,
gboolean *free_return)
{
int num_invalid, i;
size_t num_invalid, i;
char *escaped_str, *p;
unsigned char c;
static char *hex_digits = "0123456789abcdef";
int len;
len = strlen (str);
num_invalid = 0;
for (i = 0; i < len; i++)
{
@ -351,6 +349,13 @@ hex_escape_string (const char *str,
return escaped_str;
}
static char *
hex_escape_string (const char *str,
gboolean *free_return)
{
return hex_escape_buffer (str, strlen (str), free_return);
}
static char *
hex_unescape_string (const char *str,
int *out_len,
@ -389,10 +394,10 @@ hex_unescape_string (const char *str,
else
*p++ = str[i];
}
*p++ = 0;
if (out_len)
*out_len = p - unescaped_str;
*p++ = 0;
*free_return = TRUE;
return unescaped_str;
}
@ -406,7 +411,7 @@ escape_xattr (GFileInfo *info,
char *escaped_val;
gboolean free_escaped_val;
escaped_val = hex_escape_string (value, &free_escaped_val);
escaped_val = hex_escape_buffer (value, len, &free_escaped_val);
g_file_info_set_attribute_string (info, gio_attr, escaped_val);

61
gio/tests/g-file-info.c
View File

@ -677,6 +677,66 @@ test_internal_enhanced_stdio (void)
}
#endif
static void
test_xattrs (void)
{
GFile *file = NULL;
GFileIOStream *stream = NULL;
GFileInfo *file_info0 = NULL, *file_info1 = NULL;
GError *local_error = NULL;
g_test_summary ("Test setting and getting escaped xattrs");
/* Create a temporary file; no need to write anything to it. */
file = g_file_new_tmp ("g-file-info-test-xattrs-XXXXXX", &stream, &local_error);
g_assert_no_error (local_error);
g_assert_nonnull (file);
g_io_stream_close (G_IO_STREAM (stream), NULL, NULL);
g_object_unref (stream);
/* Check the existing xattrs. */
file_info0 = g_file_query_info (file, "xattr::*", G_FILE_QUERY_INFO_NONE, NULL, &local_error);
g_assert_no_error (local_error);
g_assert_nonnull (file_info0);
/* Set some new xattrs, with escaping and some embedded nuls. */
g_file_info_set_attribute_string (file_info0, "xattr::escaped", "hello\\x82\\x80\\xbd");
g_file_info_set_attribute_string (file_info0, "xattr::string", "hi there");
g_file_info_set_attribute_string (file_info0, "xattr::embedded-nul", "hi\\x00there");
g_file_set_attributes_from_info (file, file_info0, G_FILE_QUERY_INFO_NONE, NULL, &local_error);
g_object_unref (file_info0);
if (g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
{
g_test_skip ("xattrs not supported on this file system");
g_clear_error (&local_error);
}
else
{
g_assert_no_error (local_error);
/* Check they were set properly. */
file_info1 = g_file_query_info (file, "xattr::*", G_FILE_QUERY_INFO_NONE, NULL, &local_error);
g_assert_no_error (local_error);
g_assert_nonnull (file_info1);
g_assert_true (g_file_info_has_namespace (file_info1, "xattr"));
g_assert_cmpstr (g_file_info_get_attribute_string (file_info1, "xattr::escaped"), ==, "hello\\x82\\x80\\xbd");
g_assert_cmpstr (g_file_info_get_attribute_string (file_info1, "xattr::string"), ==, "hi there");
g_assert_cmpstr (g_file_info_get_attribute_string (file_info1, "xattr::embedded-nul"), ==, "hi\\x00there");
g_object_unref (file_info1);
}
/* Tidy up. */
g_file_delete (file, NULL, NULL);
g_object_unref (file);
}
int
main (int argc,
@ -689,6 +749,7 @@ main (int argc,
#ifdef G_OS_WIN32
g_test_add_func ("/g-file-info/internal-enhanced-stdio", test_internal_enhanced_stdio);
#endif
g_test_add_func ("/g-file-info/xattrs", test_xattrs);
return g_test_run();
}