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get device id correctly

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This commit is contained in:
Tony Crisci 2017-12-16 14:00:23 -05:00
parent b0ed1ad28d
commit 9e4fc7253e
1 changed files with 13 additions and 2 deletions
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15
sway/input/input-manager.c
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@ -5,6 +5,7 @@
#include <stdio.h>
#include <string.h>
#include <libinput.h>
#include <math.h>
#include "sway/config.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
@ -33,6 +34,13 @@ static struct sway_seat *input_manager_get_seat(
return sway_seat_create(input, seat_name);
}
static inline int strlen_num(int num) {
if (num == 0) {
return 2;
}
return (int)((ceil(log10(abs(num)))+2));
}
static char *get_device_identifier(struct wlr_input_device *device) {
int vendor = device->vendor;
int product = device->product;
@ -46,9 +54,12 @@ static char *get_device_identifier(struct wlr_input_device *device) {
}
}
sway_log(L_DEBUG, "rewritten name %s", name);
int len =
(strlen(name) +
strlen_num(device->vendor) +
strlen_num(device->product) +
3) * sizeof(char);
int len = strlen(name) + sizeof(char) * 6;
char *identifier = malloc(len);
if (!identifier) {
sway_log(L_ERROR, "Unable to allocate unique input device name");