From bedd2e7ccb1595c23e159eaa952ae1b0b5a3d2ad Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Sat, 15 Mar 2014 01:49:50 +0100
Subject: Lean and mean initial commit

Not much functionality yet
---
 matchstring.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 matchstring.c

(limited to 'matchstring.c')

diff --git a/matchstring.c b/matchstring.c
new file mode 100644
index 0000000..61bbec8
--- /dev/null
+++ b/matchstring.c
@@ -0,0 +1,21 @@
+#include "byte.h"
+#include "bstr.h"
+#include "asn1.h"
+
+/* behave like strcmp */
+int matchstring(struct string* s,const char* c) {
+  unsigned int l,l1,i;
+  if (!c) return -1;
+  l1=l=bstrlen(c);
+  if (s->l<l1) l1=s->l;
+  c=bstrfirst(c);
+  i=byte_diff(s->s,l1,c);
+  if (i) return i;
+  /* same length? */
+  if (l==s->l) return 0;
+  /* one is a prefix of the other */
+  if (l1<l)	/* we cut off c */
+    return -c[l1];
+  return (int)(s->s[l1]);
+}
+
-- 
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