1 files changed, 125 insertions, 0 deletions
diff --git a/tests/run-genrandom.c b/tests/run-genrandom.c
new file mode 100644
index 00000000..18b8c7ab
--- /dev/null
+++ b/tests/run-genrandom.c
@@ -0,0 +1,125 @@
+/* run-genrandom.c  - Test tool for the genrandom function
+ * Copyright (C) 2025 g10 Code GmbH
+ *
+ * This file is part of GPGME.
+ *
+ * GPGME is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * GPGME is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <https://gnu.org/licenses/>.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+/* We need to include config.h so that we know whether we are building
+   with large file system (LFS) support. */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+#include <gpgme.h>
+
+#define PGM "run-genrandom"
+
+#include "run-support.h"
+
+
+static int verbose;
+
+
+static int
+show_usage (int ex)
+{
+  fputs ("usage: " PGM " [options]\n\n"
+         "Options:\n"
+         "  --verbose        run in verbose mode\n"
+         "  --zbase32        generate 30 zbase32 characters\n"
+         , stderr);
+  exit (ex);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  int last_argc = -1;
+  gpgme_error_t err;
+  gpgme_ctx_t ctx;
+  gpgme_protocol_t protocol = GPGME_PROTOCOL_OPENPGP;
+  gpgme_random_mode_t mode = 0;
+  char buffer[128];
+
+
+  if (argc)
+    { argc--; argv++; }
+
+  while (argc && last_argc != argc )
+    {
+      last_argc = argc;
+      if (!strcmp (*argv, "--"))
+        {
+          argc--; argv++;
+          break;
+        }
+      else if (!strcmp (*argv, "--help"))
+        show_usage (0);
+      else if (!strcmp (*argv, "--verbose"))
+        {
+          verbose = 1;
+          argc--; argv++;
+        }
+      else if (!strcmp (*argv, "--zbase32"))
+        {
+          mode = GPGME_RANDOM_MODE_ZBASE32;
+          argc--; argv++;
+        }
+      else if (!strncmp (*argv, "--", 2))
+        show_usage (1);
+    }
+
+  if (argc)
+    show_usage (1);
+
+  init_gpgme (protocol);
+
+  err = gpgme_new (&ctx);
+  fail_if_err (err);
+  gpgme_set_protocol (ctx, protocol);
+
+  err = gpgme_op_random_bytes (ctx, mode, buffer, sizeof buffer);
+  if (err)
+    {
+      fprintf (stderr, PGM ": error getting random: %s\n", gpg_strerror (err));
+      exit (1);
+    }
+
+  if (mode == GPGME_RANDOM_MODE_ZBASE32)
+    puts (buffer);
+  else
+    {
+      int i;
+
+      for (i=0; i < sizeof buffer; i++)
+        {
+          if (i && !(i%32))
+            putchar ('\n');
+          printf ("%02x", ((unsigned char *)buffer)[i]);
+        }
+      putchar ('\n');
+    }
+
+  gpgme_release (ctx);
+  return 0;
+}