From a5bd09d5a995400c4f4ec1270e1ad380d238783c Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Fri, 27 Aug 2021 19:36:37 +0200
Subject: make vfs_mount_resolve pass all the tests

---
 src/kernel/vfs/mount.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'src/kernel/vfs/mount.c')

diff --git a/src/kernel/vfs/mount.c b/src/kernel/vfs/mount.c
index bf98957..bd06370 100644
--- a/src/kernel/vfs/mount.c
+++ b/src/kernel/vfs/mount.c
@@ -21,7 +21,16 @@ struct vfs_mount *vfs_mount_resolve(
 	for (; top; top = top->prev) {
 		if (top->prefix_len > path_len)
 			continue;
-		if (memcmp(top->prefix, path, top->prefix_len) == 0)
+		if (memcmp(top->prefix, path, top->prefix_len) != 0)
+			continue;
+
+		/* ensure that there's no garbage after the match
+		 * recognize that e.g. /thisasdf doesn't get recognized as mounted under
+		 * /this */
+		
+		if (top->prefix_len == path_len) // can't happen if prefix == path
+			break;
+		if (path[top->prefix_len] == '/')
 			break;
 	}
 	return top;
-- 
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