1 files changed, 59 insertions, 0 deletions
diff --git a/util/hash/sha1/openssl.c b/util/hash/sha1/openssl.c
new file mode 100644
index 000000000..ba3212ff2
--- /dev/null
+++ b/util/hash/sha1/openssl.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "openssl.h"
+
+int git_hash_sha1_global_init(void)
+{
+	return 0;
+}
+
+int git_hash_sha1_ctx_init(git_hash_sha1_ctx *ctx)
+{
+	return git_hash_sha1_init(ctx);
+}
+
+void git_hash_sha1_ctx_cleanup(git_hash_sha1_ctx *ctx)
+{
+	GIT_UNUSED(ctx);
+}
+
+int git_hash_sha1_init(git_hash_sha1_ctx *ctx)
+{
+	assert(ctx);
+
+	if (SHA1_Init(&ctx->c) != 1) {
+		git_error_set(GIT_ERROR_SHA1, "hash_openssl: failed to initialize hash context");
+		return -1;
+	}
+
+	return 0;
+}
+
+int git_hash_sha1_update(git_hash_sha1_ctx *ctx, const void *data, size_t len)
+{
+	assert(ctx);
+
+	if (SHA1_Update(&ctx->c, data, len) != 1) {
+		git_error_set(GIT_ERROR_SHA1, "hash_openssl: failed to update hash");
+		return -1;
+	}
+
+	return 0;
+}
+
+int git_hash_sha1_final(git_oid *out, git_hash_sha1_ctx *ctx)
+{
+	assert(ctx);
+
+	if (SHA1_Final(out->id, &ctx->c) != 1) {
+		git_error_set(GIT_ERROR_SHA1, "hash_openssl: failed to finalize hash");
+		return -1;
+	}
+
+	return 0;
+}