Win32 fixes

[wimlib] / src / sha1.h

diff --git a/src/sha1.h b/src/sha1.h
index 7ec8456d20cee8cf633c51ef04617bfa1024cdf0..c8fe87ff20800182b82cedda72a435785ce97ac3 100644 (file)
--- a/src/sha1.h
+++ b/src/sha1.h
@@ -5,34 +5,95 @@
 #include <stdio.h>
 #include <stddef.h>
 #include "string.h"
+#include "util.h"
 
 #define SHA1_HASH_SIZE 20
 
-extern const u8 empty_file_sha1sum[SHA1_HASH_SIZE];
+extern const u8 zero_hash[SHA1_HASH_SIZE];
 
-static inline bool is_empty_file_hash(const u8 hash[SHA1_HASH_SIZE])
+static inline void
+copy_hash(u8 dest[SHA1_HASH_SIZE], const u8 src[SHA1_HASH_SIZE])
 {
-       return memcmp(hash, empty_file_sha1sum, SHA1_HASH_SIZE) == 0;
+       memcpy(dest, src, SHA1_HASH_SIZE);
+}
+
+static inline void
+random_hash(u8 hash[SHA1_HASH_SIZE])
+{
+       randomize_byte_array(hash, SHA1_HASH_SIZE);
+}
+
+static inline bool
+hashes_equal(const u8 h1[SHA1_HASH_SIZE], const u8 h2[SHA1_HASH_SIZE])
+{
+       return memcmp(h1, h2, SHA1_HASH_SIZE) == 0;
+}
+
+static inline int
+hashes_cmp(const u8 h1[SHA1_HASH_SIZE],
+                            const u8 h2[SHA1_HASH_SIZE])
+{
+       return memcmp(h1, h2, SHA1_HASH_SIZE);
+}
+
+static inline void
+print_hash(const u8 hash[SHA1_HASH_SIZE])
+{
+       print_byte_field(hash, SHA1_HASH_SIZE);
+}
+
+static inline bool
+is_zero_hash(const u8 hash[SHA1_HASH_SIZE])
+{
+       if (hash)
+               for (u8 i = 0; i < SHA1_HASH_SIZE / 4; i++)
+                       if (((u32*)hash)[i])
+                               return false;
+       return true;
+}
+
+static inline void
+zero_out_hash(u8 hash[SHA1_HASH_SIZE])
+{
+       memset(hash, 0, SHA1_HASH_SIZE);
 }
 
-/* Compute SHA1 message digest for bytes read from STREAM.  The
-   resulting message digest number will be written into the 20 bytes
-   beginning at RESBLOCK.  */
-extern int sha1_stream(FILE * stream, void *resblock);
 
 #ifdef WITH_LIBCRYPTO
+
 #include <openssl/sha.h>
-static inline void *sha1_buffer(const char *buffer, size_t len, void *resblock)
+static inline void
+sha1_buffer(const void *buffer, size_t len, u8 hash[SHA1_HASH_SIZE])
 {
-       return SHA1(buffer, len, resblock);
+       SHA1(buffer, len, hash);
 }
-#else
-/* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
-   result is always in little endian byte order, so that a byte-wise
-   output yields to the wanted ASCII representation of the message
-   digest.  */
-extern void *sha1_buffer(const char *buffer, size_t len, void *resblock);
-#endif
+#define sha1_init     SHA1_Init
+#define sha1_update   SHA1_Update
+#define sha1_final    SHA1_Final
+
+#else /* WITH_LIBCRYPTO */
+
+typedef struct {
+       u32 state[5];
+       u32 count[2];
+       u8 buffer[64];
+} SHA_CTX;
+
+extern void
+sha1_buffer(const void *buffer, size_t len, u8 hash[SHA1_HASH_SIZE]);
+
+extern void
+sha1_init(SHA_CTX *ctx);
+
+extern void
+sha1_update(SHA_CTX *ctx, const void *data, size_t len);
+
+extern void
+sha1_final(u8 hash[SHA1_HASH_SIZE], SHA_CTX *ctx);
+
+#endif /* !WITH_LIBCRYPTO */
 
+extern int
+sha1sum(const mbchar *filename, u8 hash[SHA1_HASH_SIZE]);
 
 #endif /* _WIMLIB_SHA1_H */