busybox: fail if --install is not given an absolute path

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 69cac2e9a8b55e52d22f399f3315d227b7fd3f45..fc84d36ece86484f3a026bb624d2735ff66935c1 100644 (file)
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -721,10 +721,9 @@ static int busybox_main(char **argv)
                         * In such case, better use argv[0] as symlink target
                         * if it is a full path name.
                         */
-                       if (argv[0][0] == '/')
-                               busybox = argv[0];
-                       else
-                               busybox = bb_busybox_exec_path;
+                       if (argv[0][0] != '/')
+                               bb_error_msg_and_die("'%s' is not an absolute path", argv[0]);
+                       busybox = argv[0];
                }
                /* busybox --install [-s] [DIR]:
                 * -s: make symlinks