- OpenBSD CVS update
   - [auth-krb4.c]
     -Wall
   - [auth-rh-rsa.c auth-rsa.c hostfile.c hostfile.h key.c key.h match.c]
     [match.h ssh.c ssh.h sshconnect.c sshd.c]
     initial support for DSA keys. ok deraadt@, niels@
   - [cipher.c cipher.h]
     remove unused cipher_attack_detected code
   - [scp.1 ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh.1 sshd.8]
     Fix some formatting problems I missed before.
   - [ssh.1 sshd.8]
     fix spelling errors, From: FreeBSD
   - [ssh.c]
     switch to raw mode only if he _get_ a pty (not if we _want_ a pty).
diff --git a/match.h b/match.h
new file mode 100644
index 0000000..4625d97
--- /dev/null
+++ b/match.h
@@ -0,0 +1,18 @@
+#ifndef MATCH_H
+#define MATCH_H
+
+/*
+ * Returns true if the given string matches the pattern (which may contain ?
+ * and * as wildcards), and zero if it does not match.
+ */
+int     match_pattern(const char *s, const char *pattern);
+
+/*
+ * Tries to match the host name (which must be in all lowercase) against the
+ * comma-separated sequence of subpatterns (each possibly preceded by ! to
+ * indicate negation).  Returns true if there is a positive match; zero
+ * otherwise.
+ */
+int     match_hostname(const char *host, const char *pattern, unsigned int len);
+
+#endif