Attachment 132254 Details for Bug 101595 – Minimal example that makes the keymap invalid

Minimal example that makes the keymap invalid

trashkeymap.c (text/x-csrc), 1.33 KB, created by 67b0226d on 2017-06-26 12:49:36 UTC

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Creator: 67b0226d

Created: 2017-06-26 12:49:36 UTC

Size: 1.33 KB

patch

obsolete

>#include <assert.h>
>#include <stdio.h>
>#include <string.h>
>#include <unistd.h>
>#include <sys/mman.h>
>#include <wayland-client.h>
>
>struct wl_display* display = NULL;
>struct wl_seat* seat = NULL;
>
>static void
>global_registry_handler(void *data, struct wl_registry *registry, uint32_t id,
>	const char *interface, uint32_t version)
>{
>	if (strcmp(interface, "wl_seat") == 0)
>		seat = wl_registry_bind(registry, id, &wl_seat_interface, 1);
>}
>
>static const struct wl_registry_listener registry_listener = {
>	global_registry_handler,
>	NULL
>};
>
>static void
>keymap_handler(void *data, struct wl_keyboard *keyboard, 
>	uint32_t format, int32_t fd, uint32_t size)
>{
>	char *keymap = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
>	assert(keymap != MAP_FAILED);
>	printf("Trashing keymap\n");
>	keymap[0] = 'a';
>}
>
>static const struct wl_keyboard_listener keyboard_listener = {
>	keymap_handler,
>	NULL,
>	NULL,
>	NULL,
>	NULL,
>	NULL
>};
>
>
>int main()
>{
>	display = wl_display_connect(NULL);
>	assert(display);
>	struct wl_registry* registry = wl_display_get_registry(display);
>	wl_registry_add_listener(registry, &registry_listener, NULL);
>	assert(registry);
>	wl_display_roundtrip(display);
>
>	assert(seat);
>	struct wl_keyboard* keyboard = wl_seat_get_keyboard(seat);
>	wl_keyboard_add_listener(keyboard, &keyboard_listener, NULL);
>	wl_display_roundtrip(display);
>
>	return 0;
>}

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Attachments on bug 101595: 132248 | 132254 | 132291 | 132307 | 132308 | 132327 | 132375

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