check also open result of fdu

justincormack · Jul 21, 2018 · eeb60b7 · eeb60b7
1 parent e446872
commit eeb60b7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/nsenter1.c b/nsenter1.c
@@ -22,7 +22,7 @@ int main(int argc, char **argv) {
 	int fdi = open("/proc/1/ns/ipc", O_RDONLY);
 	int froot = open("/proc/1/root", O_RDONLY);
 
-	if (fdm == -1 || fdn == -1 || fdi == -1 || froot == -1) {
+	if (fdm == -1 || fdu == -1 || fdn == -1 || fdi == -1 || froot == -1) {
 		fprintf(stderr, "Failed to open /proc/1 files, are you root?\n");
 		exit(1);
 	}