dedupe command line routines

1 files changed, 34 insertions, 0 deletions

diff --git a/src/cmd_line.c b/src/cmd_line.c
new file mode 100644
index 0000000..9527d6f
--- /dev/null
+++ b/src/cmd_line.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2023 Egor Tensin <Egor.Tensin@gmail.com>
+ * This file is part of the "cimple" project.
+ * For details, see https://github.com/egor-tensin/cimple.
+ * Distributed under the MIT License.
+ */
+
+#include "cmd_line.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void exit_with_usage(int ec, const char *argv0)
+{
+	FILE *dest = stdout;
+	if (ec)
+		dest = stderr;
+
+	fprintf(dest, "usage: %s %s\n", argv0, get_usage_string());
+	exit(ec);
+}
+
+void exit_with_usage_err(const char *argv0, const char *msg)
+{
+	if (msg)
+		fprintf(stderr, "usage error: %s\n", msg);
+	exit_with_usage(1, argv0);
+}
+
+void exit_with_version()
+{
+	printf("%s\n", VERSION);
+	exit(0);
+}