ubase

commit 941ffd2aed35c05346c1c77ab3cbfcc75b8e494a
parent b5c3bcda7d37cbcad68ce841f9bcd679f12400f4
Author: sin <sin@2f30.org>
Date:   Fri, 27 Jun 2014 11:47:03 +0100

Bail out on path truncation

Diffstat:
M
switch_root.c
 | 
6
++++--

1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/switch_root.c b/switch_root.c
@@ -36,8 +36,10 @@ delete_content(const char *dir, dev_t curdevice)
 					continue;
 
 				/* build path and dive deeper */
-				strlcat(path, dir, sizeof(path));
-				strlcat(path, dent->d_name, sizeof(path));
+				if (strlcat(path, dir, sizeof(path)) >= sizeof(path))
+					eprintf("path too long\n");
+				if (strlcat(path, dent->d_name, sizeof(path)) >= sizeof(path))
+					eprintf("path too long\n");
 
 				delete_content(path, curdevice);
 				path[0] = 0;