Rename sha1_buffer() to simply sha1()

[wimlib] / src / sha1.c

diff --git a/src/sha1.c b/src/sha1.c
index 24f9b68292afb001ceaee802620cc2aa913e96ca..58f60dd7c829b2f24b3e976a252026cc7d118e12 100644 (file)
--- a/src/sha1.c
+++ b/src/sha1.c
@@ -1,15 +1,28 @@
 /*
- * sha1.c
+ * sha1.c - implementation of the Secure Hash Algorithm version 1 (FIPS 180-1)
  *
- * Implementation of the Secure Hash Algorithm version 1 (FIPS 180-1).
+ * Copyright 2022 Eric Biggers
  *
- * Author:  Eric Biggers
- * Year:    2014
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
  *
- * The default SHA-1 transform is based on public domain code by Steve Reid.
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
  *
- * The author dedicates this file to the public domain.
- * You can do whatever you want with this file.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -212,16 +225,15 @@ sha1_final(u8 md[20], SHA_CTX *ctx)
                store_be32_unaligned(cpu_to_be32(ctx->state[i]), &md[i * 4]);
 }
 
-/* Calculate the SHA-1 message digest of the specified buffer.
- * @len is the buffer length in bytes.  */
+/* Calculate the SHA-1 message digest of the given data. */
 void
-sha1_buffer(const void *buffer, size_t len, u8 md[20])
+sha1(const void *data, size_t len, u8 hash[SHA1_HASH_SIZE])
 {
        SHA_CTX ctx;
 
        sha1_init(&ctx);
-       sha1_update(&ctx, buffer, len);
-       sha1_final(md, &ctx);
+       sha1_update(&ctx, data, len);
+       sha1_final(hash, &ctx);
 }
 
 #endif /* !WITH_LIBCRYPTO */