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commands: Gracefully handle empty commands.

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Before this patch sway would proceed into find_handler which would cause
a crash trying to parse a NULL string.

This could be triggered via e.g. `i3-msg -s $(sway --get-socketpath)`.
This commit is contained in:
S. Christoffer Eliesen 2015-10-19 19:42:49 +02:00
parent 83c23f274c
commit e3837ba634
1 changed files with 5 additions and 0 deletions
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5
sway/commands.c
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@ -1178,6 +1178,11 @@ enum cmd_status handle_command(char *_exec) {
// Split commands // Split commands
cmd = argsep(&cmdlist, ","); cmd = argsep(&cmdlist, ",");
cmd += strspn(cmd, whitespace); cmd += strspn(cmd, whitespace);
if (strcmp(cmd, "") == 0) {
sway_log(L_INFO, "Ignoring empty command.");
continue;
}
sway_log(L_INFO, "Handling command '%s'", cmd); sway_log(L_INFO, "Handling command '%s'", cmd);
//TODO better handling of argv //TODO better handling of argv
int argc; int argc;