support --without-openssl at configure time

Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.

Considered highly experimental for now.

1 files changed, 61 insertions, 0 deletions

diff --git a/openbsd-compat/rmd160.h b/openbsd-compat/rmd160.h
new file mode 100644
index 000000000..99c1dcdc0
--- /dev/null
+++ b/openbsd-compat/rmd160.h
@@ -0,0 +1,61 @@
+/*      $OpenBSD: rmd160.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $     */
+/*
+ * Copyright (c) 2001 Markus Friedl.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef  _RMD160_H
+#define  _RMD160_H
+
+#ifndef WITH_OPENSSL
+
+#define RMD160_BLOCK_LENGTH             64
+#define RMD160_DIGEST_LENGTH            20
+#define RMD160_DIGEST_STRING_LENGTH     (RMD160_DIGEST_LENGTH * 2 + 1)
+
+/* RMD160 context. */
+typedef struct RMD160Context {
+        u_int32_t state[5];                     /* state */
+        u_int64_t count;                        /* number of bits, mod 2^64 */
+        u_int8_t buffer[RMD160_BLOCK_LENGTH];   /* input buffer */
+} RMD160_CTX;
+
+void     RMD160Init(RMD160_CTX *);
+void     RMD160Transform(u_int32_t [5], const u_int8_t [RMD160_BLOCK_LENGTH])
+                __attribute__((__bounded__(__minbytes__,1,5)))
+                __attribute__((__bounded__(__minbytes__,2,RMD160_BLOCK_LENGTH)));
+void     RMD160Update(RMD160_CTX *, const u_int8_t *, size_t)
+                __attribute__((__bounded__(__string__,2,3)));
+void     RMD160Pad(RMD160_CTX *);
+void     RMD160Final(u_int8_t [RMD160_DIGEST_LENGTH], RMD160_CTX *)
+                __attribute__((__bounded__(__minbytes__,1,RMD160_DIGEST_LENGTH)));
+char    *RMD160End(RMD160_CTX *, char *)
+                __attribute__((__bounded__(__minbytes__,2,RMD160_DIGEST_STRING_LENGTH)));
+char    *RMD160File(const char *, char *)
+                __attribute__((__bounded__(__minbytes__,2,RMD160_DIGEST_STRING_LENGTH)));
+char    *RMD160FileChunk(const char *, char *, off_t, off_t)
+                __attribute__((__bounded__(__minbytes__,2,RMD160_DIGEST_STRING_LENGTH)));
+char    *RMD160Data(const u_int8_t *, size_t, char *)
+                __attribute__((__bounded__(__string__,1,2)))
+                __attribute__((__bounded__(__minbytes__,3,RMD160_DIGEST_STRING_LENGTH)));
+
+#endif /* !WITH_OPENSSL */
+#endif  /* _RMD160_H */