From cd140950d7d4f0f22ed9d9dbeddac89ed423bbdf Mon Sep 17 00:00:00 2001
From: Alex Karle <alex@alexkarle.com>
Date: Sat, 18 Dec 2021 13:24:01 -0500
Subject: [PATCH] Add error if any arguments are given

This should help avoid confusion when run as `blag file` and apparently
hanging...
---
 blag.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/blag.c b/blag.c
index 57d9bbe..c5f2c30 100644
--- a/blag.c
+++ b/blag.c
@@ -5,7 +5,7 @@
  * "because markdown isn't in base!"
  */
 #include <stdio.h>
-#include <err.h>
+#include <stdlib.h>
 #include <unistd.h>
 
 enum Block {
@@ -375,7 +375,11 @@ int parse() {
     return 0;
 }
 
-int main(void) {
+int main(int argc, char *argv[]) {
+    if (argc > 1) {
+        fprintf(stderr, "error: %s takes no arguments\n", argv[0]);
+        exit(1);
+    }
 #ifdef __OpenBSD__
     pledge("stdio", "stdio");
 #endif
--
libgit2 1.1.1