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Cleaning up

This commit is contained in:
Přemysl Eric Janouch 2013-05-05 21:16:12 +02:00
parent 3ff81982d0
commit 2d77af94c6
1 changed files with 62 additions and 94 deletions
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136
stardict.c
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@ -812,77 +812,11 @@ stardict_entry_field_free (StardictEntryField *sef)
g_slice_free1 (sizeof *sef, sef);
}
static GList *
read_entries (const gchar *entry, gsize entry_size, GError **error)
static StardictEntryField *
read_entry (gchar type, const gchar **entry_iterator,
const gchar *end, gboolean is_final)
{
const gchar *end = entry + entry_size;
GList *result = NULL;
while (entry < end)
{
gchar type = *entry++;
if (g_ascii_islower (type))
{
GString *data = g_string_new (NULL);
gchar c;
while (entry < end && (c = *entry++))
g_string_append_c (data, c);
if (c != '\0')
{
g_string_free (data, TRUE);
goto error;
}
StardictEntryField *sef = g_slice_alloc (sizeof *sef);
sef->type = type;
sef->data_size = data->len + 1;
sef->data = g_string_free (data, FALSE);
result = g_list_append (result, sef);
}
else
{
if (entry + sizeof (guint32) > end)
goto error;
gsize length = GUINT32_FROM_BE (*(guint32 *) entry);
entry += sizeof (guint32);
if (entry + length > end)
goto error;
gpointer data = g_malloc (length);
memcpy (data, entry, length);
StardictEntryField *sef = g_slice_alloc (sizeof *sef);
sef->type = type;
sef->data_size = length;
sef->data = data;
result = g_list_append (result, sef);
}
}
return result;
error:
g_set_error (error, STARDICT_ERROR, STARDICT_ERROR_INVALID_DATA,
"invalid data entry");
g_list_free_full (result,
(GDestroyNotify) stardict_entry_field_free);
return NULL;
}
static GList *
read_entries_sts (const gchar *entry, gsize entry_size,
const gchar *sts, GError **error)
{
const gchar *end = entry + entry_size;
GList *result = NULL;
while (*sts)
{
gchar type = *sts++;
gboolean is_final = !*sts;
const gchar *entry = *entry_iterator;
if (g_ascii_islower (type))
{
GString *data = g_string_new (NULL);
@ -896,43 +830,53 @@ read_entries_sts (const gchar *entry, gsize entry_size,
g_string_append_c (data, c);
if (c != '\0')
{
g_string_free (data, TRUE);
goto error;
return (gpointer) g_string_free (data, TRUE);
}
}
StardictEntryField *sef = g_slice_alloc (sizeof *sef);
sef->type = type;
sef->data_size = data->len + 1;
sef->data = g_string_free (data, FALSE);
result = g_list_append (result, sef);
*entry_iterator = entry;
return sef;
}
else
{
gsize length;
if (is_final)
length = end - entry;
else
{
if (entry + sizeof (guint32) > end)
goto error;
return NULL;
length = GUINT32_FROM_BE (*(guint32 *) entry);
entry += sizeof (guint32);
if (entry + length > end)
goto error;
return NULL;
}
StardictEntryField *sef = g_slice_alloc (sizeof *sef);
sef->type = type;
sef->data_size = length;
sef->data = memcpy (g_malloc (length), entry, length);
result = g_list_append (result, sef);
*entry_iterator = entry;
return sef;
}
static GList *
read_entries (const gchar *entry, gsize entry_size, GError **error)
{
const gchar *end = entry + entry_size;
GList *result = NULL;
while (entry < end)
{
gchar type = *entry++;
StardictEntryField *sef = read_entry (type, &entry, end, FALSE);
if (!sef)
goto error;
result = g_list_append (result, sef);
}
return result;
@ -940,8 +884,32 @@ read_entries_sts (const gchar *entry, gsize entry_size,
error:
g_set_error (error, STARDICT_ERROR, STARDICT_ERROR_INVALID_DATA,
"invalid data entry");
g_list_free_full (result,
(GDestroyNotify) stardict_entry_field_free);
g_list_free_full (result, (GDestroyNotify) stardict_entry_field_free);
return NULL;
}
static GList *
read_entries_sts (const gchar *entry, gsize entry_size,
const gchar *sts, GError **error)
{
const gchar *end = entry + entry_size;
GList *result = NULL;
while (*sts)
{
gchar type = *sts++;
StardictEntryField *sef = read_entry (type, &entry, end, !*sts);
if (!sef)
goto error;
result = g_list_append (result, sef);
}
return result;
error:
g_set_error (error, STARDICT_ERROR, STARDICT_ERROR_INVALID_DATA,
"invalid data entry");
g_list_free_full (result, (GDestroyNotify) stardict_entry_field_free);
return NULL;
}