Lean and mean initial commit

Not much functionality yet

1 files changed, 20 insertions, 0 deletions

diff --git a/matchcaseprefix.c b/matchcaseprefix.c
new file mode 100644
index 0000000..9f709b7
--- /dev/null
+++ b/matchcaseprefix.c
@@ -0,0 +1,20 @@
+#include <string.h>
+#include "case.h"
+#include "asn1.h"
+#include "str.h"
+
+/* behave like strcmp, but also return 0 if s is a prefix of c. */
+int matchcaseprefix(struct string* s,const char* c) {
+  unsigned int l,l1,i;
+  if (!c) return -1;
+  l1=l=str_len(c);
+  if (s->l<l1) l1=s->l;
+  i=case_diffb(s->s,l1,c);
+  if (i) return i;
+  /* one is a prefix of the other */
+  if (l==s->l) return 0;
+  if (c[l1]) /* is c the longer string? */
+    return 0;
+  return -(int)(s->s[l1]);
+}
+