pledge(2) support

vidir.c

@@ -67,6 +67,13 @@ int rm_path(const char *p) {
 }
 
 int main(int argc, char *argv[]) {
+#ifdef __OpenBSD__
+  if (pledge("stdio rpath wpath cpath proc exec", NULL) == -1) {
+    perror("pledge");
+    return 1;
+  }
+#endif
+
   char tmpname[] = "/tmp/vidirXXXXXX";
   int fd;
   FILE *tmp;