1 files changed, 34 insertions, 0 deletions
diff --git a/sys/cmd/dwm/util.c b/sys/cmd/dwm/util.c
new file mode 100644
index 0000000..c9cc726
--- /dev/null
+++ b/sys/cmd/dwm/util.c
@@ -0,0 +1,34 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void
+fatal(char *fmt, ...) {
+	va_list args;
+
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+
+	exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		fatal("calloc:");
+	return p;
+}
+