diff --git a/lib/libiscsiutil/libiscsiutil.h b/lib/libiscsiutil/libiscsiutil.h
--- a/lib/libiscsiutil/libiscsiutil.h
+++ b/lib/libiscsiutil/libiscsiutil.h
@@ -162,9 +162,13 @@
 void			log_set_peer_addr(const char *addr);
 void			log_err(int, const char *, ...)
 			    __dead2 __printflike(2, 3);
+void			log_errc(int, int, const char *, ...)
+			    __dead2 __printflike(3, 4);
 void			log_errx(int, const char *, ...)
 			    __dead2 __printflike(2, 3);
 void			log_warn(const char *, ...) __printflike(1, 2);
+void			log_warnc(int, const char *, ...)
+			    __printflike(2, 3);
 void			log_warnx(const char *, ...) __printflike(1, 2);
 void			log_debugx(const char *, ...) __printflike(1, 2);
 
diff --git a/lib/libiscsiutil/log.c b/lib/libiscsiutil/log.c
--- a/lib/libiscsiutil/log.c
+++ b/lib/libiscsiutil/log.c
@@ -152,6 +152,18 @@
 	exit(eval);
 }
 
+void
+log_errc(int eval, int code, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	log_common(LOG_CRIT, code, fmt, ap);
+	va_end(ap);
+
+	exit(eval);
+}
+
 void
 log_errx(int eval, const char *fmt, ...)
 {
@@ -174,6 +186,16 @@
 	va_end(ap);
 }
 
+void
+log_warnc(int code, const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	log_common(LOG_WARNING, code, fmt, ap);
+	va_end(ap);
+}
+
 void
 log_warnx(const char *fmt, ...)
 {