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config: check the return value of xkb_context_new

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When xkb_context_new returns NULL and that is passed on to
xkb_keymap_new_from_names, sway will crash. This happens for example
if xkeyboard-config is not installed. Exit with an error message instead.

While at it, check xkb_keymap as well.
This commit is contained in:
Jeroen Hofstee 2020-09-22 21:43:55 +02:00
parent 4537c8b3d4
commit 6b0dc6e06a
1 changed files with 5 additions and 0 deletions
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5
sway/config.c
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@ -38,10 +38,15 @@ struct sway_config *config = NULL;
static struct xkb_state *keysym_translation_state_create(
struct xkb_rule_names rules) {
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
if (!context)
sway_abort("Failed to create XKB context");
struct xkb_keymap *xkb_keymap = xkb_keymap_new_from_names(
context,
&rules,
XKB_KEYMAP_COMPILE_NO_FLAGS);
if (!xkb_keymap)
sway_abort("failed to compile global XKB keymap");
xkb_context_unref(context);
return xkb_state_new(xkb_keymap);