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Input: fix potential overflows in driver/input/joystick

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Change all sprintfs into snprintfs to make sure we won't stomp on
data adjacent to our buffers.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2006-06-26 01:45:48 -04:00
parent 08ffce4560
commit 10ca4c0a62
16 changed files with 40 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/input/joystick/a3d.c
View File

@ -306,7 +306,7 @@ static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv)
gameport_set_poll_handler(gameport, a3d_poll);
gameport_set_poll_interval(gameport, 20);
sprintf(a3d->phys, "%s/input0", gameport->phys);
snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys);
input_dev->name = a3d_names[a3d->mode];
input_dev->phys = a3d->phys;

15
drivers/input/joystick/analog.c
View File

@ -408,21 +408,23 @@ static void analog_calibrate_timer(struct analog_port *port)
static void analog_name(struct analog *analog)
{
sprintf(analog->name, "Analog %d-axis %d-button",
snprintf(analog->name, sizeof(analog->name), "Analog %d-axis %d-button",
hweight8(analog->mask & ANALOG_AXES_STD),
hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 +
hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4);
if (analog->mask & ANALOG_HATS_ALL)
sprintf(analog->name, "%s %d-hat",
snprintf(analog->name, sizeof(analog->name), "%s %d-hat",
analog->name, hweight16(analog->mask & ANALOG_HATS_ALL));
if (analog->mask & ANALOG_HAT_FCS)
strcat(analog->name, " FCS");
strlcat(analog->name, " FCS", sizeof(analog->name));
if (analog->mask & ANALOG_ANY_CHF)
strcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF");
strlcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF",
sizeof(analog->name));
strcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick");
strlcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick",
sizeof(analog->name));
}
/*
@ -435,7 +437,8 @@ static int analog_init_device(struct analog_port *port, struct analog *analog, i
int i, j, t, v, w, x, y, z;
analog_name(analog);
sprintf(analog->phys, "%s/input%d", port->gameport->phys, index);
snprintf(analog->phys, sizeof(analog->phys),
"%s/input%d", port->gameport->phys, index);
analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn;
analog->dev = input_dev = input_allocate_device();

3
drivers/input/joystick/cobra.c
View File

@ -202,7 +202,8 @@ static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv)
goto fail3;
}
sprintf(cobra->phys[i], "%s/input%d", gameport->phys, i);
snprintf(cobra->phys[i], sizeof(cobra->phys[i]),
"%s/input%d", gameport->phys, i);
input_dev->name = "Creative Labs Blaster GamePad Cobra";
input_dev->phys = cobra->phys[i];

3
drivers/input/joystick/db9.c
View File

@ -620,7 +620,8 @@ static struct db9 __init *db9_probe(int parport, int mode)
goto err_unreg_devs;
}
sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
snprintf(db9->phys[i], sizeof(db9->phys[i]),
"%s/input%d", db9->pd->port->name, i);
input_dev->name = db9_mode->name;
input_dev->phys = db9->phys[i];

3
drivers/input/joystick/gamecon.c
View File

@ -761,7 +761,8 @@ static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
if (!pads[i])
continue;
sprintf(gc->phys[i], "%s/input%d", gc->pd->port->name, i);
snprintf(gc->phys[i], sizeof(gc->phys[i]),
"%s/input%d", gc->pd->port->name, i);
err = gc_setup_pad(gc, i, pads[i]);
if (err)
goto err_unreg_devs;

2
drivers/input/joystick/gf2k.c
View File

@ -298,7 +298,7 @@ static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
gameport_set_poll_handler(gameport, gf2k_poll);
gameport_set_poll_interval(gameport, 20);
sprintf(gf2k->phys, "%s/input0", gameport->phys);
snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);
gf2k->length = gf2k_lens[gf2k->id];

3
drivers/input/joystick/grip.c
View File

@ -354,7 +354,8 @@ static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
goto fail3;
}
sprintf(grip->phys[i], "%s/input%d", gameport->phys, i);
snprintf(grip->phys[i], sizeof(grip->phys[i]),
"%s/input%d", gameport->phys, i);
input_dev->name = grip_name[grip->mode[i]];
input_dev->phys = grip->phys[i];

2
drivers/input/joystick/guillemot.c
View File

@ -222,7 +222,7 @@ static int guillemot_connect(struct gameport *gameport, struct gameport_driver *
gameport_set_poll_handler(gameport, guillemot_poll);
gameport_set_poll_interval(gameport, 20);
sprintf(guillemot->phys, "%s/input0", gameport->phys);
snprintf(guillemot->phys, sizeof(guillemot->phys), "%s/input0", gameport->phys);
guillemot->type = guillemot_type + i;
input_dev->name = guillemot_type[i].name;

2
drivers/input/joystick/interact.c
View File

@ -251,7 +251,7 @@ static int interact_connect(struct gameport *gameport, struct gameport_driver *d
gameport_set_poll_handler(gameport, interact_poll);
gameport_set_poll_interval(gameport, 20);
sprintf(interact->phys, "%s/input0", gameport->phys);
snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys);
interact->type = i;
interact->length = interact_type[i].length;

2
drivers/input/joystick/magellan.c
View File

@ -162,7 +162,7 @@ static int magellan_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
magellan->dev = input_dev;
sprintf(magellan->phys, "%s/input0", serio->phys);
snprintf(magellan->phys, sizeof(magellan->phys), "%s/input0", serio->phys);
input_dev->name = "LogiCad3D Magellan / SpaceMouse";
input_dev->phys = magellan->phys;

13
drivers/input/joystick/sidewinder.c
View File

@ -541,7 +541,7 @@ static void sw_print_packet(char *name, int length, unsigned char *buf, char bit
* Unfortunately I don't know how to do this for the other SW types.
*/
static void sw_3dp_id(unsigned char *buf, char *comment)
static void sw_3dp_id(unsigned char *buf, char *comment, size_t size)
{
int i;
char pnp[8], rev[9];
@ -554,7 +554,7 @@ static void sw_3dp_id(unsigned char *buf, char *comment)
pnp[7] = rev[8] = 0;
sprintf(comment, " [PnP %d.%02d id %s rev %s]",
snprintf(comment, size, " [PnP %d.%02d id %s rev %s]",
(int) ((sw_get_bits(buf, 8, 6, 1) << 6) | /* Two 6-bit values */
sw_get_bits(buf, 16, 6, 1)) / 100,
(int) ((sw_get_bits(buf, 8, 6, 1) << 6) |
@ -703,7 +703,8 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
sw->length = 22;
case 64:
sw->type = SW_ID_3DP;
if (j == 160) sw_3dp_id(idbuf, comment);
if (j == 160)
sw_3dp_id(idbuf, comment, sizeof(comment));
break;
}
}
@ -733,8 +734,10 @@ static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
for (i = 0; i < sw->number; i++) {
int bits, code;
sprintf(sw->name, "Microsoft SideWinder %s", sw_name[sw->type]);
sprintf(sw->phys[i], "%s/input%d", gameport->phys, i);
snprintf(sw->name, sizeof(sw->name),
"Microsoft SideWinder %s", sw_name[sw->type]);
snprintf(sw->phys[i], sizeof(sw->phys[i]),
"%s/input%d", gameport->phys, i);
sw->dev[i] = input_dev = input_allocate_device();
if (!input_dev) {

2
drivers/input/joystick/spaceball.c
View File

@ -220,7 +220,7 @@ static int spaceball_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
spaceball->dev = input_dev;
sprintf(spaceball->phys, "%s/input0", serio->phys);
snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);
input_dev->name = spaceball_names[id];
input_dev->phys = spaceball->phys;

2
drivers/input/joystick/spaceorb.c
View File

@ -177,7 +177,7 @@ static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
spaceorb->dev = input_dev;
sprintf(spaceorb->phys, "%s/input0", serio->phys);
snprintf(spaceorb->phys, sizeof(spaceorb->phys), "%s/input0", serio->phys);
input_dev->name = "SpaceTec SpaceOrb 360 / Avenger";
input_dev->phys = spaceorb->phys;

2
drivers/input/joystick/stinger.c
View File

@ -148,7 +148,7 @@ static int stinger_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
stinger->dev = input_dev;
sprintf(stinger->phys, "%s/serio0", serio->phys);
snprintf(stinger->phys, sizeof(stinger->phys), "%s/serio0", serio->phys);
input_dev->name = "Gravis Stinger";
input_dev->phys = stinger->phys;

2
drivers/input/joystick/twidjoy.c
View File

@ -199,7 +199,7 @@ static int twidjoy_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
twidjoy->dev = input_dev;
sprintf(twidjoy->phys, "%s/input0", serio->phys);
snprintf(twidjoy->phys, sizeof(twidjoy->phys), "%s/input0", serio->phys);
input_dev->name = "Handykey Twiddler";
input_dev->phys = twidjoy->phys;

2
drivers/input/joystick/warrior.c
View File

@ -154,7 +154,7 @@ static int warrior_connect(struct serio *serio, struct serio_driver *drv)
goto fail;
warrior->dev = input_dev;
sprintf(warrior->phys, "%s/input0", serio->phys);
snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);
input_dev->name = "Logitech WingMan Warrior";
input_dev->phys = warrior->phys;