src/server/util/hashing.c

changeset 586
9861e8ceaf96
child 587
c94800af0490
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/util/hashing.c	Wed May 28 20:54:43 2025 +0200
@@ -0,0 +1,69 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2025 Olaf Wintermann. 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+#include "hashing.h"
+
+#include <stdlib.h>
+
+WS_SHA_CTX* ws_sha256_create(void) {
+    WS_SHA_CTX *ctx = malloc(sizeof(WS_SHA_CTX));
+    ws_sha256_init(ctx);
+    return ctx;
+}
+
+#if OPENSSL_VERSION_NUMBER < 0x30000000L
+
+void ws_sha256_init(WS_SHA_CTX *ctx) {
+    SHA256_Init(ctx);
+}
+
+void ws_sha256_update(WS_SHA_CTX *ctx, const void *data, size_t length) {
+    SHA256_Update(ctx, data, length);
+}
+
+void ws_sha256_final(char *md, WS_SHA_CTX *ctx) {
+    SHA256_Final(md, ctx);
+}
+
+#else
+
+void ws_sha256_init(WS_SHA_CTX *ctx) {
+    EVP_MD_CTX *mdctx = EVP_MD_CTX_new();
+    EVP_DigestInit_ex(mdctx, EVP_sha256(), NULL);
+    *ctx = mdctx;
+}
+
+void ws_sha256_update(WS_SHA_CTX *ctx, const char *data, size_t length) {
+    EVP_DigestUpdate(*ctx, data, length);
+}
+
+void ws_sha256_final(WS_SHA_CTX *ctx, unsigned char *md) {
+    EVP_DigestFinal(*ctx, md, NULL);
+}
+
+#endif

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