1 files changed, 46 insertions, 0 deletions
diff --git a/source/help.c b/source/help.c
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+++ b/source/help.c
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+/*
+	Copyright 2022-2023 Gabriel Bjørnager Jensen.
+
+	This file is part of agbsum.
+
+	agbsum is free software: you can redistribute it
+	and/or modify it under the terms of the GNU
+	Affero General Public License as published by
+	the Free Software Foundation, either version 3
+	of the License, or (at your option) any later
+	version.
+
+	agbsum 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 Affero General Public License for more
+	details.
+
+	You should have received a copy of the GNU
+	Affero General Public License along with agbsum.
+	If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <agbsum.h>
+
+#include <inttypes.h>
+#include <stdio.h>
+
+void
+agb_help (void)
+{
+	fputs (
+		"agbsum - Patch AGB image header checksums.\n"
+		"\n"
+		"Usage: agbsum [options] <image>\n"
+		"Options:\n"
+		"    --help -h    Print the help screen\n"
+		"    -p           Patch the image file\n"
+		"    -s           Don't print results\n"
+		"    --version    Print the version number\n"
+		"\n",
+		stdout
+	);
+	agb_copyright ();
+}