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glocalfileinfo: Stop using PATH_MAX for .hidden

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We were using PATH_MAX to size a static array for reading lines from
the .hidden file.  Some platforms (Hurd) don't declare a PATH_MAX.

Switch to using g_file_get_contents() and g_str_split('\n') instead.

Also take the time to clean up a bit with a switch to using a 'set mode'
GHashTable (since this code was originally written before we had those).

This patch is largely based on a patch from Emilio Pozuelo Monfort (who
also reported the bug).

https://bugzilla.gnome.org/show_bug.cgi?id=695147
This commit is contained in:
Ryan Lortie 2013-03-12 12:53:42 -04:00
parent 8028f54c9c
commit 3902006a5b
1 changed files with 13 additions and 19 deletions
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32
gio/glocalfileinfo.c
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@ -1437,35 +1437,30 @@ remove_from_hidden_cache (gpointer user_data)
static GHashTable *
read_hidden_file (const gchar *dirname)
{
gchar *contents = NULL;
gchar *filename;
FILE *hidden;
filename = g_build_path ("/", dirname, ".hidden", NULL);
hidden = fopen (filename, "r");
g_file_get_contents (filename, &contents, NULL, NULL);
g_free (filename);
if (hidden != NULL)
if (contents != NULL)
{
gchar buffer[PATH_MAX + 2]; /* \n\0 */
GHashTable *table;
gchar **lines;
gint i;
table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
while (fgets (buffer, sizeof buffer, hidden))
{
gchar *newline;
lines = g_strsplit (contents, "\n", 0);
g_free (contents);
if ((newline = strchr (buffer, '\n')) != NULL)
{
*newline++ = '\0';
for (i = 0; lines[i]; i++)
/* hash table takes the individual strings... */
g_hash_table_add (table, lines[i]);
g_hash_table_insert (table,
g_memdup (buffer, newline - buffer),
GINT_TO_POINTER (TRUE));
}
}
fclose (hidden);
/* ... so we only free the container. */
g_free (lines);
return table;
}
@ -1517,8 +1512,7 @@ file_is_hidden (const gchar *path,
g_source_unref (remove_from_cache_source);
}
result = table != NULL &&
GPOINTER_TO_INT (g_hash_table_lookup (table, basename));
result = table != NULL && g_hash_table_contains (table, basename);
G_UNLOCK (hidden_cache);