1 files changed, 64 insertions, 0 deletions
diff --git a/src/testing/testing_api_cmd_common.c b/src/testing/testing_api_cmd_common.c
new file mode 100644
index 000000000..2d828a2b0
--- /dev/null
+++ b/src/testing/testing_api_cmd_common.c
@@ -0,0 +1,64 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2018-2022 Taler Systems SA
+
+  TALER is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 3, or (at your
+  option) any later version.
+
+  TALER 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
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public
+  License along with TALER; see the file COPYING.  If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file testing/testing_api_cmd_common.c
+ * @brief common functions for commands
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_testing_lib.h"
+
+
+enum GNUNET_GenericReturnValue
+TALER_TESTING_parse_coin_reference (
+  const char *coin_reference,
+  char **cref,
+  unsigned int *idx)
+{
+  const char *index;
+  char dummy;
+
+  /* We allow command references of the form "$LABEL#$INDEX" or
+     just "$LABEL", which implies the index is 0. Figure out
+     which one it is. */
+  index = strchr (coin_reference, '#');
+  if (NULL == index)
+  {
+    *idx = 0;
+    *cref = GNUNET_strdup (coin_reference);
+    return GNUNET_OK;
+  }
+  *cref = GNUNET_strndup (coin_reference,
+                          index - coin_reference);
+  if (1 != sscanf (index + 1,
+                   "%u%c",
+                   idx,
+                   &dummy))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Numeric index (not `%s') required after `#' in command reference of command in %s:%u\n",
+                index,
+                __FILE__,
+                __LINE__);
+    GNUNET_free (*cref);
+    *cref = NULL;
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}