+static char *mk_file_path(const char *dir, const char *file)
+{
+ char *full_file = NULL;
+ size_t full_file_l = 0;
+ const char *sep = "";
+#ifndef OPENSSL_SYS_VMS
+ sep = "/";
+#endif
+
+ full_file_l = strlen(dir) + strlen(sep) + strlen(file) + 1;
+ full_file = OPENSSL_zalloc(full_file_l);
+ if (full_file != NULL) {
+ OPENSSL_strlcpy(full_file, dir, full_file_l);
+ OPENSSL_strlcat(full_file, sep, full_file_l);
+ OPENSSL_strlcat(full_file, file, full_file_l);
+ }
+
+ return full_file;
+}
+
+static X509 *load_pem_cert(const char *dir, const char *file)