import new drw and util from libsl.

1 files changed, 20 insertions, 4 deletions

diff --git a/util.c b/util.c
index ad3da78..6b703e9 100644
--- a/util.c
+++ b/util.c
@@ -2,16 +2,32 @@
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "util.h"
 
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		perror(NULL);
+	return p;
+}
+
 void
-die(const char *errstr, ...) {
+die(const char *fmt, ...) {
 	va_list ap;
 
-	va_start(ap, errstr);
-	vfprintf(stderr, errstr, ap);
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
 	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	}
+
 	exit(1);
 }
-