lnstools

commit c3838c58b485225753db7b0db5a0bc6eb9fdd9ce
parent a0935155f8491fc179f94e8b9e2f571f3dae8c6d
Author: Jan Pobrislo <ccx@te2000.cz>
Date:   Fri, 12 Dec 2025 02:01:08 +0000

Check for new_root lenght

Diffstat:
M
src/lns-lockdown_main.c
 | 
7
+++++--

1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/lns-lockdown_main.c b/src/lns-lockdown_main.c
@@ -78,6 +78,9 @@ void pivot_and_umount(
             strerr_dief1x(111, "realpath() returned invalid string");
         }
     }
+    if(newroot_len == 0) {
+        strerr_dief1x(111, "got empty path?");
+    }
     size_t mtp_count, mtp_n;
     size_t oldroot_len = strlen(put_old) - newroot_len;
     stralloc sa_env = STRALLOC_ZERO;
@@ -279,11 +282,11 @@ int main (int argc, char const *const *argv) {
     }
     char *new_root = realpath(argv[0], NULL);
     if (new_root == NULL) {
-	    strerr_diefu1sys(111, "to resolve first path");
+        strerr_diefu1sys(111, "to resolve first path");
     }
     char *put_old = realpath(argv[1], NULL);
     if (new_root == NULL) {
-	    strerr_diefu1sys(111, "to resolve first path");
+        strerr_diefu1sys(111, "to resolve first path");
     }
     pivot_and_umount(new_root, put_old, &unex);
     free(new_root);