kernel/linux.git/scripts/kconfig/nconf.gui.c, branch v5.10.257

kconfig: nconf: Ensure null termination where strncpy is used

2025-08-28T14:22:46+00:00

[ Upstream commit f468992936894c9ce3b1659cf38c230d33b77a16 ] strncpy() does not guarantee null-termination if the source string is longer than the destination buffer. Ensure the buffer is explicitly null-terminated to prevent potential string overflows or undefined behavior. Signed-off-by: Shankari Anand Signed-off-by: Masahiro Yamada Acked-by: Randy Dunlap Tested-by: Randy Dunlap Tested-by: Nicolas Schier Acked-by: Nicolas Schier Signed-off-by: Sasha Levin

kconfig/[mn]conf: handle backspace (^H) key

2019-03-29T13:48:01+00:00

Backspace is not working on some terminal emulators which do not send the key code defined by terminfo. Terminals either send '^H' (8) or '^?' (127). But currently only '^?' is handled. Let's also handle '^H' for those terminals. Signed-off-by: Changbin Du Signed-off-by: Masahiro Yamada

kconfig: convert to SPDX License Identifier

2018-12-28T13:22:28+00:00

All files in lxdialog/ are licensed under GPL-2.0+, and the rest are under GPL-2.0. I added GPL-2.0 tags to test scripts in tests/. Documentation/process/license-rules.rst does not suggest anything about the flex/bison files. Because flex does not accept the C++ comment style at the very top of a file, I used the C style for zconf.l, and so for zconf.y for consistency. Signed-off-by: Masahiro Yamada

kconfig: add xrealloc() helper

2018-02-10T02:26:04+00:00

We already have xmalloc(), xcalloc(). Add xrealloc() as well to save tedious error handling. Signed-off-by: Masahiro Yamada

kconfig: fix sparse warnings in nconfig

2017-06-22T21:00:52+00:00

Fix sparse warnings in scripts/kconfig/nconf* ('make nconfig'): ../scripts/kconfig/nconf.c:1071:32: warning: Using plain integer as NULL pointer ../scripts/kconfig/nconf.c:1238:30: warning: Using plain integer as NULL pointer ../scripts/kconfig/nconf.c:511:51: warning: Using plain integer as NULL pointer ../scripts/kconfig/nconf.c:1460:6: warning: symbol 'setup_windows' was not declared. Should it be static? ../scripts/kconfig/nconf.c:274:12: warning: symbol 'current_instructions' was not declared. Should it be static? ../scripts/kconfig/nconf.c:308:22: warning: symbol 'function_keys' was not declared. Should it be static? ../scripts/kconfig/nconf.gui.c:132:17: warning: non-ANSI function declaration of function 'set_colors' ../scripts/kconfig/nconf.gui.c:195:24: warning: Using plain integer as NULL pointer nconf.gui.o before/after files are the same. nconf.o before/after files are the same until the 'static' function declarations are added. Signed-off-by: Randy Dunlap Signed-off-by: Masahiro Yamada

kconfig/nconf: Fix hang when editing symbol with a long prompt

2016-12-11T11:26:42+00:00

Currently it is impossible to edit the value of a config symbol with a prompt longer than (terminal width - 2) characters. dialog_inputbox() calculates a negative x-offset for the input window and newwin() fails as this is invalid. It also doesn't check for this failure, so it busy-loops calling wgetch(NULL) which immediately returns -1. The additions in the offset calculations also don't match the intended size of the window. Limit the window size and calculate the offset similarly to show_scroll_win(). Cc: stable Fixes: 692d97c380c6 ("kconfig: new configuration interface (nconfig)") Signed-off-by: Ben Hutchings

nconf: use function calls instead of ncurses' variables LINES and COLS

2013-06-18T21:58:58+00:00

According to the documentation [1], LINES and COLS are initialized by initscr(); it does not say anything about the behavior when windows are resized. Do not rely on the current implementation of ncurses that updates these variables on resize, but use the propper function calls or macros to get window dimensions. The use of the variables in main() was OK, but for the sake of consistency it was modified to use the macro getmaxyx(). [1] ncurses(3X) Signed-off-by: Dirk Gouders Reviewed-by: "Yann E. MORIN" [yann.morin.1998@free.fr: declare 'lines' and 'columns' on a single line] Signed-off-by: Yann E. MORIN

nconf: function keys line, change background color for better readability

2013-01-24T10:43:44+00:00

• In function keys line descriptions black on darkblue are almost impossible to read. Change colors to black on brown. Signed-off-by: Roland Eggner Tested-by: "Yann E. MORIN" Signed-off-by: "Yann E. MORIN"

nconf: add u, d command keys in scroll windows

2012-07-26T10:20:46+00:00

They function just like they do in less(1). Also correct some discrepancy between the help text and the code wrt function keys. Signed-off-by: Benjamin Poirier Signed-off-by: Michal Marek

scripts/kconfig/nconf: add KEY_HOME / KEY_END for dialog_inputbox

2011-09-09T12:40:08+00:00

to make it easier to locate begin/end when editing long strings; Signed-off-by: Cheng Renquan Acked By: Nir Tzachar