1 files changed, 49 insertions, 0 deletions
diff --git a/contrib/pam_modules/pam_passwdqc/md4.h b/contrib/pam_modules/pam_passwdqc/md4.h
new file mode 100644
index 000000000000..7d68651b2121
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+++ b/contrib/pam_modules/pam_passwdqc/md4.h
@@ -0,0 +1,49 @@
+/*
+ * This is an OpenSSL API compatible (but not ABI compatible) implementation
+ * of the RSA Data Security, Inc. MD4 Message-Digest Algorithm (RFC 1320).
+ *
+ * Homepage:
+ * https://openwall.info/wiki/people/solar/software/public-domain-source-code/md4
+ *
+ * Author:
+ * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
+ *
+ * This software was written by Alexander Peslyak in 2001.  No copyright is
+ * claimed, and the software is hereby placed in the public domain.
+ * In case this attempt to disclaim copyright and place the software in the
+ * public domain is deemed null and void, then the software is
+ * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
+ * general public under the following terms:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted.
+ *
+ * There's ABSOLUTELY NO WARRANTY, express or implied.
+ *
+ * See md4.c for more information.
+ */
+
+#ifdef HAVE_OPENSSL
+#include <openssl/md4.h>
+#elif !defined(_MD4_H)
+#define _MD4_H
+
+#include <stddef.h> /* for size_t */
+
+/* Any 32-bit or wider unsigned integer data type will do */
+typedef unsigned int MD4_u32plus;
+
+typedef struct {
+	MD4_u32plus lo, hi;
+	MD4_u32plus a, b, c, d;
+	unsigned char buffer[64];
+#if !(defined(__i386__) || defined(__x86_64__) || defined(__vax__))
+	MD4_u32plus block[16];
+#endif
+} MD4_CTX;
+
+extern void MD4_Init(MD4_CTX *ctx);
+extern void MD4_Update(MD4_CTX *ctx, const void *data, size_t size);
+extern void MD4_Final(unsigned char *result, MD4_CTX *ctx);
+
+#endif