From 983e886ff3280e65bf59f3493b7dabbc29d60e23 Mon Sep 17 00:00:00 2001
From: Sebastian <sebastian@sebsite.pw>
Date: Sun, 3 Oct 2021 19:50:34 -0400
Subject: [PATCH] Fix non-portable use of dirname(3) in rmdir

Fixes ticket #6: https://todo.sr.ht/~sircmpwn/ctools/6

The implementation of rmdir was dependent on dirname(3) modifying its
source, which isn't portable behavior. This commit ensures that path is
always modified.

Signed-off-by: Sebastian <sebastian@sebsite.pw>
---
 src/rmdir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rmdir.c b/src/rmdir.c
index c06c3cc..6395d9f 100644
--- a/src/rmdir.c
+++ b/src/rmdir.c
@@ -38,7 +38,7 @@ main(int argc, char *argv[])
 				perror("rmdir");
 				return 1;
 			}
-		} while (remove_path && strcmp(dirname(path), ".") != 0);
+		} while (remove_path && strcmp((path = dirname(path)), ".") != 0);
 	}
 
 	return 0;
-- 
2.38.5