add error handling for scroll button out of range
user will be informed if the scroll button indentifier values causes
underflow or overflow.
#include <string.h>
#include <strings.h>
+#include <errno.h>
#include "sway/config.h"
#include "sway/commands.h"
#include "sway/input/input-manager.h"
@@ -18,13 +19,19 @@ struct cmd_results *input_cmd_scroll_button(int argc, char **argv) {
struct input_config *new_config =
new_input_config(current_input_config->identifier);
+ errno = 0;
char *endptr;
- long scroll_button = strtol(*argv, &endptr, 10);
+ int scroll_button = strtol(*argv, &endptr, 10);
if (endptr == *argv && scroll_button == 0) {
free_input_config(new_config);
return cmd_results_new(CMD_INVALID, "scroll_button",
"Scroll button identifier must be an integer.");
}
+ if (errno == ERANGE) {
+ free_input_config(new_config);
+ return cmd_results_new(CMD_INVALID, "scroll_button",
+ "Scroll button identifier out of range.");
+ }
if (scroll_button < 0) {
free_input_config(new_config);
return cmd_results_new(CMD_INVALID, "scroll_button",
