1 files changed, 46 insertions, 0 deletions
diff --git a/include/sudo_digest.h b/include/sudo_digest.h
new file mode 100644
index 0000000..fccfc58
--- /dev/null
+++ b/include/sudo_digest.h
@@ -0,0 +1,46 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2018 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef SUDO_DIGEST_H
+#define SUDO_DIGEST_H
+
+/* Digest types. */
+#define SUDO_DIGEST_SHA224	0
+#define SUDO_DIGEST_SHA256	1
+#define SUDO_DIGEST_SHA384	2
+#define SUDO_DIGEST_SHA512	3
+#define SUDO_DIGEST_INVALID	4
+
+struct sudo_digest;
+
+/* Public functions. */
+sudo_dso_public struct sudo_digest *sudo_digest_alloc_v1(int digest_type);
+sudo_dso_public void sudo_digest_free_v1(struct sudo_digest *dig);
+sudo_dso_public void sudo_digest_reset_v1(struct sudo_digest *dig);
+sudo_dso_public int sudo_digest_getlen_v1(int digest_type);
+sudo_dso_public void sudo_digest_update_v1(struct sudo_digest *dig, const void *data, size_t len);
+sudo_dso_public void sudo_digest_final_v1(struct sudo_digest *dig, unsigned char *md);
+
+#define sudo_digest_alloc(_a) sudo_digest_alloc_v1((_a))
+#define sudo_digest_free(_a) sudo_digest_free_v1((_a))
+#define sudo_digest_reset(_a) sudo_digest_reset_v1((_a))
+#define sudo_digest_getlen(_a) sudo_digest_getlen_v1((_a))
+#define sudo_digest_update(_a, _b, _c) sudo_digest_update_v1((_a), (_b), (_c))
+#define sudo_digest_final(_a, _b) sudo_digest_final_v1((_a), (_b))
+
+#endif /* SUDO_DIGEST_H */