1 files changed, 59 insertions, 0 deletions
diff --git a/wsutil/cmdarg_err.c b/wsutil/cmdarg_err.c
new file mode 100644
index 0000000..85a4d8d
--- /dev/null
+++ b/wsutil/cmdarg_err.c
@@ -0,0 +1,59 @@
+/* cmdarg_err.c
+ * Routines to report command-line argument errors.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include "cmdarg_err.h"
+
+static void (*print_err)(const char *, va_list ap);
+static void (*print_err_cont)(const char *, va_list ap);
+
+/*
+ * Set the reporting functions for error messages.
+ */
+void
+cmdarg_err_init(void (*err)(const char *, va_list),
+                void (*err_cont)(const char *, va_list))
+{
+    print_err = err;
+    print_err_cont = err_cont;
+}
+
+/*
+ * Report an error in command-line arguments.
+ */
+void
+vcmdarg_err(const char *fmt, va_list ap)
+{
+    print_err(fmt, ap);
+}
+
+void
+cmdarg_err(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    print_err(fmt, ap);
+    va_end(ap);
+}
+
+/*
+ * Report additional information for an error in command-line arguments.
+ */
+void
+cmdarg_err_cont(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    print_err_cont(fmt, ap);
+    va_end(ap);
+}