1 files changed, 62 insertions, 0 deletions
diff --git a/modules/pam_timestamp/sha1.h b/modules/pam_timestamp/sha1.h
new file mode 100644
index 0000000..a1c3891
--- /dev/null
+++ b/modules/pam_timestamp/sha1.h
@@ -0,0 +1,62 @@
+/* Yet another SHA-1 implementation.
+ *
+ * Copyright (c) 2003 Red Hat, Inc.
+ * Written by Nalin Dahyabhai <nalin@redhat.com>
+ *
+ * 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, and the entire permission notice in its entirety,
+ *    including the disclaimer of warranties.
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * ALTERNATIVELY, this product may be distributed under the terms of
+ * the GNU Public License, in which case the provisions of the GPL are
+ * required INSTEAD OF the above restrictions.  (This clause is
+ * necessary due to a potential bad interaction between the GPL and
+ * the restrictions contained in a BSD-style copyright.)
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 pam_timestamp_sha1_h
+#define pam_timestamp_sha1_h
+
+#include <stdint.h>
+#include <sys/types.h>
+#include "pam_cc_compat.h"
+
+#define SHA1_BLOCK_SIZE 64
+
+struct sha1_context {
+	size_t count;
+	unsigned char pending[SHA1_BLOCK_SIZE] PAM_ATTRIBUTE_ALIGNED(4);
+	uint32_t counts[2];
+	size_t pending_count;
+	uint32_t a, b, c, d, e;
+};
+
+#define SHA1_OUTPUT_SIZE 20
+
+void sha1_init(struct sha1_context *ctx);
+void sha1_update(struct sha1_context *ctx,
+		 const unsigned char *data, size_t length);
+size_t sha1_output(struct sha1_context *ctx, unsigned char *out);
+
+#endif