From 6f2cac23a7e759c464ef52103fac929e1eeb6b10 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Sat, 9 Oct 2021 10:30:50 -0700
Subject: feat(rc): added shell

---
 sys/cmd/rc/util.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 sys/cmd/rc/util.c

(limited to 'sys/cmd/rc/util.c')

diff --git a/sys/cmd/rc/util.c b/sys/cmd/rc/util.c
new file mode 100644
index 0000000..02b3611
--- /dev/null
+++ b/sys/cmd/rc/util.c
@@ -0,0 +1,40 @@
+#include "rc.h"
+
+void *
+emalloc(uintptr n)
+{
+    void *p = malloc(n);
+    if (!p)
+        panic("can't malloc %d bytes", n);
+
+    return p;
+}
+
+void *
+erealloc(void *p, uintptr n)
+{
+    void *new = realloc(p, n);
+    if (!new)
+        panic("can't realloc %d bytes", n);
+
+    return new;
+}
+
+void
+efree(void *p)
+{
+    if (p)
+        free(p);
+    else
+        pfmt(errio, "free <nil>\n");
+}
+
+void
+panic(char *s, int n)
+{
+    pfmt(errio, "rc: ");
+    pfmt(errio, s, n);
+    pchr(errio, '\n');
+    flush(&errio);
+    abort();
+}
-- 
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