4 * The author dedicates this file to the public domain.
5 * You can do whatever you want with this file.
11 #include "wimlib/types.h"
12 #include "wimlib/util.h"
16 #define SHA1_HASH_SIZE 20
18 extern const u8 zero_hash[SHA1_HASH_SIZE];
21 copy_hash(u8 dest[SHA1_HASH_SIZE], const u8 src[SHA1_HASH_SIZE])
23 memcpy(dest, src, SHA1_HASH_SIZE);
27 random_hash(u8 hash[SHA1_HASH_SIZE])
29 randomize_byte_array(hash, SHA1_HASH_SIZE);
33 hashes_cmp(const u8 h1[SHA1_HASH_SIZE], const u8 h2[SHA1_HASH_SIZE])
35 return memcmp(h1, h2, SHA1_HASH_SIZE);
39 hashes_equal(const u8 h1[SHA1_HASH_SIZE], const u8 h2[SHA1_HASH_SIZE])
41 return !hashes_cmp(h1, h2);
45 print_hash(const u8 hash[SHA1_HASH_SIZE], FILE *out)
47 print_byte_field(hash, SHA1_HASH_SIZE, out);
51 is_zero_hash(const u8 *hash)
53 return (hash == zero_hash || hashes_equal(hash, zero_hash));
57 zero_out_hash(u8 hash[SHA1_HASH_SIZE])
59 copy_hash(hash, zero_hash);
64 #include <openssl/sha.h>
66 #define sha1_init SHA1_Init
67 #define sha1_update SHA1_Update
68 #define sha1_final SHA1_Final
71 sha1_buffer(const void *buffer, size_t len, u8 hash[SHA1_HASH_SIZE])
73 SHA1(buffer, len, hash);
76 #else /* WITH_LIBCRYPTO */
85 sha1_init(SHA_CTX *ctx);
88 sha1_update(SHA_CTX *ctx, const void *data, size_t len);
91 sha1_final(u8 hash[SHA1_HASH_SIZE], SHA_CTX *ctx);
94 sha1_buffer(const void *buffer, size_t len, u8 hash[SHA1_HASH_SIZE]);
96 #endif /* !WITH_LIBCRYPTO */
98 #endif /* _WIMLIB_SHA1_H */