From ec1ce068edb4cc0b222008b295b22c565e5339df Mon Sep 17 00:00:00 2001
From: Markus Teich <markus.teich@stusta.mhn.de>
Date: Sun, 12 Jun 2016 00:55:09 +0200
Subject: update util: logging and assertions

---
 util.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 util.c

(limited to 'util.c')

diff --git a/util.c b/util.c
new file mode 100644
index 0000000..99d4c9b
--- /dev/null
+++ b/util.c
@@ -0,0 +1,47 @@
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+static void xvprintf(const char *, va_list);
+
+void
+eprintf(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	xvprintf(fmt, ap);
+	va_end(ap);
+
+	abort();
+}
+
+void
+weprintf(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	xvprintf(fmt, ap);
+	va_end(ap);
+}
+
+void
+xvprintf(const char *fmt, va_list ap)
+{
+	/**TODO: provide other logging target than stderr */
+	fputs("libbrandt: ", stderr);
+
+	vfprintf(stderr, fmt, ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+}
-- 
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