1 files changed, 18 insertions, 0 deletions
diff --git a/draw/eprint.c b/draw/eprint.c
new file mode 100644
index 0000000..3094b61
--- /dev/null
+++ b/draw/eprint.c
@@ -0,0 +1,18 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "draw.h"
+
+const char *progname;
+
+void
+eprint(const char *fmt, ...) {
+	va_list ap;
+
+	fprintf(stderr, "%s: ", progname);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}