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check for workspace command name arg

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* check for workspace command name arg (fix #5131)

For the 'workspace <name> output <output>' command, output_location must
be greater than zero or the attempt to get the workspace name with
join_args will segfault or abort() (depending on the flavor of
sway_assert() in use). This checks and returns an error instead.

* put workspace output error string on one line

To ease grepping as requested

* check for name in workspace gaps command as well

A malformed command here will lead to the same result seen in #5131, so
add a check. Done inside the cmd_workspace_gaps() function itself, to
take advantage of the existing 'Expected...' string.
This commit is contained in:
r-c-f 2020-03-24 10:07:12 -05:00 committed by GitHub
parent 0b9feb6f39
commit 854497b242
Failed to generate hash of commit
1 changed files with 7 additions and 1 deletions
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8
sway/commands/workspace.c
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@ -60,6 +60,9 @@ static struct cmd_results *cmd_workspace_gaps(int argc, char **argv,
int gaps_location) {
const char expected[] = "Expected 'workspace <name> gaps "
"inner|outer|horizontal|vertical|top|right|bottom|left <px>'";
if (gaps_location == 0) {
return cmd_results_new(CMD_INVALID, expected);
}
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "workspace", EXPECTED_EQUAL_TO,
gaps_location + 3))) {
@ -140,7 +143,10 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
break;
}
}
if (output_location >= 0) {
if (output_location == 0) {
return cmd_results_new(CMD_INVALID,
"Expected 'workspace <name> output <output>'");
} else if (output_location > 0) {
if ((error = checkarg(argc, "workspace", EXPECTED_AT_LEAST,
output_location + 2))) {
return error;