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scripts/kconfig/nconf: dynamically alloc dialog_input_result

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To support unlimited length string config items;

No check for realloc return value keeps code simple, and to be
consistent with other existing unchecked malloc in kconfig.

Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
This commit is contained in:
Cheng Renquan 2011-09-01 10:52:20 -07:00 committed by Michal Marek
parent cd58a90fa6
commit 5ea9f64ffc
3 changed files with 26 additions and 17 deletions
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21
scripts/kconfig/nconf.c
View File

@ -278,6 +278,9 @@ static int global_exit;
/* the currently selected button */
const char *current_instructions = menu_instructions;
static char *dialog_input_result;
static int dialog_input_result_len;
static void conf(struct menu *menu);
static void conf_choice(struct menu *menu);
static void conf_string(struct menu *menu);
@ -693,7 +696,6 @@ static void search_conf(void)
{
struct symbol **sym_arr;
struct gstr res;
char dialog_input_result[100];
char *dialog_input;
int dres;
again:
@ -701,7 +703,7 @@ static void search_conf(void)
_("Search Configuration Parameter"),
_("Enter " CONFIG_ " (sub)string to search for "
"(with or without \"" CONFIG_ "\")"),
"", dialog_input_result, 99);
"", &dialog_input_result, &dialog_input_result_len);
switch (dres) {
case 0:
break;
@ -1346,7 +1348,6 @@ static void conf_choice(struct menu *menu)
static void conf_string(struct menu *menu)
{
const char *prompt = menu_get_prompt(menu);
char dialog_input_result[256];
while (1) {
int res;
@ -1369,8 +1370,8 @@ static void conf_string(struct menu *menu)
prompt ? _(prompt) : _("Main Menu"),
heading,
sym_get_string_value(menu->sym),
dialog_input_result,
sizeof(dialog_input_result));
&dialog_input_result,
&dialog_input_result_len);
switch (res) {
case 0:
if (sym_set_string_value(menu->sym,
@ -1390,14 +1391,13 @@ static void conf_string(struct menu *menu)
static void conf_load(void)
{
char dialog_input_result[256];
while (1) {
int res;
res = dialog_inputbox(main_window,
NULL, load_config_text,
filename,
dialog_input_result,
sizeof(dialog_input_result));
&dialog_input_result,
&dialog_input_result_len);
switch (res) {
case 0:
if (!dialog_input_result[0])
@ -1422,14 +1422,13 @@ static void conf_load(void)
static void conf_save(void)
{
char dialog_input_result[256];
while (1) {
int res;
res = dialog_inputbox(main_window,
NULL, save_config_text,
filename,
dialog_input_result,
sizeof(dialog_input_result));
&dialog_input_result,
&dialog_input_result_len);
switch (res) {
case 0:
if (!dialog_input_result[0])

20
scripts/kconfig/nconf.gui.c
View File

@ -356,7 +356,7 @@ int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...)
int dialog_inputbox(WINDOW *main_window,
const char *title, const char *prompt,
const char *init, char *result, int result_len)
const char *init, char **resultp, int *result_len)
{
int prompt_lines = 0;
int prompt_width = 0;
@ -367,7 +367,12 @@ int dialog_inputbox(WINDOW *main_window,
int i, x, y;
int res = -1;
int cursor_position = strlen(init);
char *result = *resultp;
if (strlen(init)+1 > *result_len) {
*result_len = strlen(init)+1;
*resultp = result = realloc(result, *result_len);
}
/* find the widest line of msg: */
prompt_lines = get_line_no(prompt);
@ -384,7 +389,7 @@ int dialog_inputbox(WINDOW *main_window,
y = (LINES-(prompt_lines+4))/2;
x = (COLS-(prompt_width+4))/2;
strncpy(result, init, result_len);
strncpy(result, init, *result_len);
/* create the windows */
win = newwin(prompt_lines+6, prompt_width+7, y, x);
@ -443,7 +448,7 @@ int dialog_inputbox(WINDOW *main_window,
case KEY_UP:
case KEY_RIGHT:
if (cursor_position < len &&
cursor_position < min(result_len, prompt_width))
cursor_position < min(*result_len, prompt_width))
cursor_position++;
break;
case KEY_DOWN:
@ -452,8 +457,13 @@ int dialog_inputbox(WINDOW *main_window,
cursor_position--;
break;
default:
if ((isgraph(res) || isspace(res)) &&
len-2 < result_len) {
if ((isgraph(res) || isspace(res))) {
/* one for new char, one for '\0' */
if (len+2 > *result_len) {
*result_len = len+2;
*resultp = result = realloc(result,
*result_len);
}
/* insert the char at the proper position */
memmove(&result[cursor_position+1],
&result[cursor_position],

2
scripts/kconfig/nconf.h
View File

@ -89,7 +89,7 @@ void fill_window(WINDOW *win, const char *text);
int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...);
int dialog_inputbox(WINDOW *main_window,
const char *title, const char *prompt,
const char *init, char *result, int result_len);
const char *init, char **resultp, int *result_len);
void refresh_all_windows(WINDOW *main_window);
void show_scroll_win(WINDOW *main_window,
const char *title,