[geany/geany] 7473e4: Add defensive checks for function receiving a GeanyDocument argument

22 Jan 2014


      Branch:      refs/heads/master
Author:      Colomban Wendling ban@herbesfolles.org
Committer:   Colomban Wendling ban@herbesfolles.org
Date:        Wed, 22 Jan 2014 16:38:29 UTC
Commit:      7473e4b1d94acd502c0aeb5e17d0b62235414294
             https://github.com/geany/geany/commit/7473e4b1d94acd502c0aeb5e17d0b622354142...
Log Message:
-----------
Add defensive checks for function receiving a GeanyDocument argument
Always check the passed-in GeanyDocument argument is a valid one, not
to possibly work on an invalid document.
Modified Paths:
--------------
    src/build.c
    src/dialogs.c
    src/document.c
    src/filetypes.c
    src/keybindings.c
    src/navqueue.c
    src/printing.c
    src/search.c
    src/sidebar.c
    src/symbols.c
    src/templates.c
    src/tools.c
    src/ui_utils.c
Modified: src/build.c
12 files changed, 11 insertions(+), 1 deletions(-)
===================================================================
@@ -338,6 +338,8 @@ static GeanyBuildCommand *get_next_build_cmd(GeanyDocument *doc, guint cmdgrp, g
    GeanyFiletype *ft = NULL;
    guint sink, *fr = &sink;
+	g_return_val_if_fail(doc == NULL || doc->is_valid, NULL);
+
    if (printbuildcmds)
    	printfcmds();
    if (cmdgrp >= GEANY_GBG_COUNT)
@@ -716,6 +718,8 @@ static gchar *build_replace_placeholder(const GeanyDocument *doc, const gchar *s
    gchar *executable = NULL;
    gchar *ret_str; /* to be freed when not in use anymore */
+	g_return_val_if_fail(doc == NULL || doc->is_valid, NULL);
+
    stack = g_string_new(src);
    if (doc != NULL && doc->file_name != NULL)
    {
@@ -780,6 +784,8 @@ static GPid build_spawn_cmd(GeanyDocument *doc, const gchar *cmd, const gchar *d
    gint stderr_fd;
 #endif
+	g_return_val_if_fail(doc == NULL || doc->is_valid, (GPid) -1);
+
    if (!((doc != NULL && !EMPTY(doc->file_name)) || !EMPTY(dir)))
    {
    	geany_debug("Failed to run command with no working directory");
@@ -942,7 +948,7 @@ static GPid build_run_cmd(GeanyDocument *doc, guint cmdindex)
    gchar *vte_cmd_nonscript = NULL;
    GError *error = NULL;
-	if (doc == NULL || doc->file_name == NULL)
+	if (! DOC_VALID(doc) || doc->file_name == NULL)
    	return (GPid) 0;
working_dir = prepare_run_script(doc, &vte_cmd_nonscript, cmdindex);
@@ -1583,6 +1589,8 @@ void build_menu_update(GeanyDocument *doc)
    gboolean can_compile, can_build, can_make, run_sensitivity = FALSE, run_running = FALSE;
    GeanyBuildCommand *bc;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (menu_items.menu == NULL)
    	create_build_menu(&menu_items);
    if (doc == NULL)
@@ -1977,6 +1985,8 @@ static RowWidgets *build_add_dialog_row(GeanyDocument *doc, GtkTable *table, gui
    guint column = 0;
    gchar *text;
+	g_return_val_if_fail(doc == NULL || doc->is_valid, NULL);
+
    text = g_strdup_printf("%d.", cmd + 1);
    label = gtk_label_new(text);
    g_free(text);
Modified: src/dialogs.c
4 files changed, 3 insertions(+), 1 deletions(-)
===================================================================
@@ -591,7 +591,7 @@ static gboolean show_save_as_gtk(GeanyDocument *doc)
    GtkWidget *dialog;
    gint resp;
-	g_return_val_if_fail(doc != NULL, FALSE);
+	g_return_val_if_fail(DOC_VALID(doc), FALSE);
dialog = create_save_file_dialog(doc);
@@ -1172,6 +1172,8 @@ void dialogs_show_file_properties(GeanyDocument *doc)
 # define S_IXOTH 0
 #endif
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL || doc->file_name == NULL)
    {
    	dialogs_show_msgbox(GTK_MESSAGE_ERROR,
Modified: src/document.c
2 files changed, 2 insertions(+), 0 deletions(-)
===================================================================
@@ -1099,6 +1099,8 @@ GeanyDocument *document_open_file_full(GeanyDocument *doc, const gchar *filename
    GeanyFiletype *use_ft;
    FileData filedata;
+	g_return_val_if_fail(doc == NULL || doc->is_valid, NULL);
+
    if (reload)
    {
    	utf8_filename = g_strdup(doc->file_name);
Modified: src/filetypes.c
2 files changed, 2 insertions(+), 0 deletions(-)
===================================================================
@@ -1056,6 +1056,8 @@ GeanyFiletype *filetypes_detect_from_document(GeanyDocument *doc)
    gchar 			*lines[GEANY_FILETYPE_SEARCH_LINES + 1];
    gint			 i;
+	g_return_val_if_fail(doc == NULL || doc->is_valid, filetypes[GEANY_FILETYPES_NONE]);
+
    if (doc == NULL)
    	return filetypes[GEANY_FILETYPES_NONE];
Modified: src/keybindings.c
8 files changed, 4 insertions(+), 4 deletions(-)
===================================================================
@@ -1041,6 +1041,8 @@ static void trigger_button_event(GtkWidget *widget, guint32 event_time)
  * notebook tab list. */
 static gboolean check_menu_key(GeanyDocument *doc, guint keyval, guint state, guint32 event_time)
 {
+	g_return_val_if_fail(doc == NULL || doc->is_valid, FALSE);
+
    if ((keyval == GDK_Menu && state == 0) || (keyval == GDK_F10 && state == GDK_SHIFT_MASK))
    {
    	GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(main_widgets.window));
@@ -1585,8 +1587,7 @@ static gboolean cb_func_build_action(guint key_id)
static gboolean read_current_word(GeanyDocument *doc, gboolean sci_word)
 {
-	if (doc == NULL)
-		return FALSE;
+	g_return_val_if_fail(DOC_VALID(doc), FALSE);
if (sci_word)
    {
@@ -1820,8 +1821,7 @@ static void goto_matching_brace(GeanyDocument *doc)
    gint pos, new_pos;
    gint after_brace;
-	if (doc == NULL)
-		return;
+	g_return_if_fail(DOC_VALID(doc));
pos = sci_get_current_position(doc->editor->sci);
    after_brace = pos > 0 && utils_isbrace(sci_get_char_at(doc->editor->sci, pos - 1), TRUE);
Modified: src/navqueue.c
3 files changed, 2 insertions(+), 1 deletions(-)
===================================================================
@@ -150,7 +150,8 @@ gboolean navqueue_goto_line(GeanyDocument *old_doc, GeanyDocument *new_doc, gint
 {
    gint pos;
-	g_return_val_if_fail(new_doc != NULL, FALSE);
+	g_return_val_if_fail(old_doc == NULL || old_doc->is_valid, FALSE);
+	g_return_val_if_fail(DOC_VALID(new_doc), FALSE);
    g_return_val_if_fail(line >= 1, FALSE);
pos = sci_get_position_from_line(new_doc->editor->sci, line - 1);
Modified: src/printing.c
3 files changed, 1 insertions(+), 2 deletions(-)
===================================================================
@@ -624,8 +624,7 @@ static void print_external(GeanyDocument *doc)
void printing_print_doc(GeanyDocument *doc)
 {
-	if (doc == NULL)
-		return;
+	g_return_if_fail(DOC_VALID(doc));
if (printing_prefs.use_gtk_printing)
    	printing_print_gtk(doc);
Modified: src/search.c
6 files changed, 3 insertions(+), 3 deletions(-)
===================================================================
@@ -394,7 +394,7 @@ void search_find_selection(GeanyDocument *doc, gboolean search_backwards)
 {
    gchar *s = NULL;
-	g_return_if_fail(doc != NULL);
+	g_return_if_fail(DOC_VALID(doc));
#ifdef G_OS_UNIX
    if (search_prefs.find_selection_type == GEANY_FIND_SEL_X)
@@ -1225,7 +1225,7 @@ gint search_mark_all(GeanyDocument *doc, const gchar *search_text, gint flags)
    struct Sci_TextToFind ttf;
    GSList *match, *matches;
-	g_return_val_if_fail(doc != NULL, 0);
+	g_return_val_if_fail(DOC_VALID(doc), 0);
/* clear previous search indicators */
    editor_indicator_clear(doc->editor, GEANY_INDICATOR_SEARCH);
@@ -2134,7 +2134,7 @@ static gint find_document_usage(GeanyDocument *doc, const gchar *search_text, gi
    gint prev_line = -1;
    GSList *match, *matches;
-	g_return_val_if_fail(doc != NULL, 0);
+	g_return_val_if_fail(DOC_VALID(doc), 0);
short_file_name = g_path_get_basename(DOC_FILENAME(doc));
Modified: src/sidebar.c
2 files changed, 2 insertions(+), 0 deletions(-)
===================================================================
@@ -187,6 +187,8 @@ void sidebar_update_tag_list(GeanyDocument *doc, gboolean update)
 {
    GtkWidget *child = gtk_bin_get_child(GTK_BIN(tag_window));
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    /* changes the tree view to the given one, trying not to do useless changes */
    #define CHANGE_TREE(new_child) \
    	G_STMT_START { \
Modified: src/symbols.c
4 files changed, 3 insertions(+), 1 deletions(-)
===================================================================
@@ -1715,7 +1715,7 @@ gboolean symbols_recreate_tag_list(GeanyDocument *doc, gint sort_mode)
 {
    GList *tags;
-	g_return_val_if_fail(doc != NULL, FALSE);
+	g_return_val_if_fail(DOC_VALID(doc), FALSE);
tags = get_tag_list(doc, tm_tag_max_t);
    if (tags == NULL)
@@ -2226,6 +2226,8 @@ static gint get_current_tag_name_cached(GeanyDocument *doc, const gchar **tagnam
    static gint tag_line = -1;
    static gchar *cur_tag = NULL;
+	g_return_val_if_fail(doc == NULL || doc->is_valid, -1);
+
    if (doc == NULL)	/* reset current function */
    {
    	current_tag_changed(NULL, -1, -1, 0);
Modified: src/templates.c
12 files changed, 9 insertions(+), 3 deletions(-)
===================================================================
@@ -107,6 +107,8 @@ static void convert_eol_characters(GString *template, GeanyDocument *doc)
 {
    gint doc_eol_mode;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL)
    	doc = document_get_current();
@@ -436,7 +438,7 @@ gchar *templates_get_template_licence(GeanyDocument *doc, gint licence_type)
 {
    GString *template;
-	g_return_val_if_fail(doc != NULL, NULL);
+	g_return_val_if_fail(DOC_VALID(doc), NULL);
    g_return_val_if_fail(licence_type == GEANY_TEMPLATE_GPL || licence_type == GEANY_TEMPLATE_BSD, NULL);
template = g_string_new(templates[licence_type]);
@@ -502,9 +504,13 @@ gchar *templates_get_template_function(GeanyDocument *doc, const gchar *func_nam
gchar *templates_get_template_changelog(GeanyDocument *doc)
 {
-	GString *result = g_string_new(templates[GEANY_TEMPLATE_CHANGELOG]);
-	const gchar *file_type_name = (doc != NULL) ? doc->file_type->name : "";
+	GString *result;
+	const gchar *file_type_name;
+
+	g_return_val_if_fail(DOC_VALID(doc), NULL);
+	result = g_string_new(templates[GEANY_TEMPLATE_CHANGELOG]);
+	file_type_name = (doc->file_type != NULL) ? doc->file_type->name : "";
    replace_static_values(result);
    templates_replace_default_dates(result);
    templates_replace_command(result, DOC_FILENAME(doc), file_type_name, NULL);
Modified: src/tools.c
4 files changed, 2 insertions(+), 2 deletions(-)
===================================================================
@@ -356,7 +356,7 @@ void tools_execute_custom_command(GeanyDocument *doc, const gchar *command)
    gint stdout_fd;
    gint stderr_fd;
-	g_return_if_fail(doc != NULL && command != NULL);
+	g_return_if_fail(DOC_VALID(doc) && command != NULL);
if (! sci_has_selection(doc->editor->sci))
    	editor_select_lines(doc->editor, FALSE);
@@ -697,7 +697,7 @@ static void cc_on_custom_command_activate(GtkMenuItem *menuitem, gpointer user_d
    GeanyDocument *doc = document_get_current();
    gint command_idx;
-	g_return_if_fail(doc != NULL);
+	g_return_if_fail(DOC_VALID(doc));
command_idx = GPOINTER_TO_INT(user_data);
Modified: src/ui_utils.c
14 files changed, 14 insertions(+), 0 deletions(-)
===================================================================
@@ -317,6 +317,8 @@ static gchar *create_statusbar_statistics(GeanyDocument *doc,
 /* updates the status bar document statistics */
 void ui_update_statusbar(GeanyDocument *doc, gint pos)
 {
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (! interface_prefs.statusbar_visible)
    	return; /* just do nothing if statusbar is not visible */
@@ -359,6 +361,8 @@ void ui_set_window_title(GeanyDocument *doc)
    GString *str;
    GeanyProject *project = app->project;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL)
    	doc = document_get_current();
@@ -445,6 +449,8 @@ void ui_update_popup_reundo_items(GeanyDocument *doc)
    gboolean enable_redo;
    guint i, len;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL)
    {
    	enable_undo = FALSE;
@@ -475,6 +481,8 @@ void ui_update_popup_copy_items(GeanyDocument *doc)
    gboolean enable;
    guint i, len;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL)
    	enable = FALSE;
    else
@@ -501,6 +509,8 @@ void ui_update_menu_copy_items(GeanyDocument *doc)
    guint i, len;
    GtkWidget *focusw = gtk_window_get_focus(GTK_WINDOW(main_widgets.window));
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (IS_SCINTILLA(focusw))
    	enable = (doc == NULL) ? FALSE : sci_has_selection(doc->editor->sci);
    else
@@ -524,6 +534,8 @@ void ui_update_insert_include_item(GeanyDocument *doc, gint item)
 {
    gboolean enable = FALSE;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL || doc->file_type == NULL)
    	enable = FALSE;
    else if (doc->file_type->id == GEANY_FILETYPES_C ||  doc->file_type->id == GEANY_FILETYPES_CPP)
@@ -892,6 +904,8 @@ void ui_document_show_hide(GeanyDocument *doc)
    GtkWidget *item;
    const GeanyIndentPrefs *iprefs;
+	g_return_if_fail(doc == NULL || doc->is_valid);
+
    if (doc == NULL)
    	doc = document_get_current();
--------------
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[geany/geany] 7473e4: Add defensive checks for function receiving a GeanyDocument argument