Changeset 4671:21813f03d0cc in roaraudio for libroar/crc.c

Timestamp:

12/20/10 00:23:21 (13 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

added RFC 2440/4880 CRC24 binding for hashing functions

File:

• libroar/crc.c (modified) (1 diff)

libroar/crc.c

@@ -58 +58 @@
 }
 
+int roar_hash_crc24_init(void * state) {
+ uint32_t * self = state;
+
+ *self = roar_crc24_init();
+
+ return 0;
+}
+
+int roar_hash_crc24_digest(void * state, void * digest, size_t * len) {
+ uint32_t * self = state;
+ unsigned char * out  = digest;
+ register uint32_t crc;
+
+ if ( *len < 3 )
+  return -1;
+
+ *len = 3;
+
+ crc = *self;
+
+ out[0] = ((crc & 0x00FF0000) >> 16) & 0xFF;
+ out[1] = ((crc & 0x0000FF00) >>  8) & 0xFF;
+ out[2] = ((crc & 0x000000FF) >>  0) & 0xFF;
+
+ return 0;
+}
+
+int roar_hash_crc24_proc(void * state, const void * data, size_t len) {
+ uint32_t * self = state;
+
+ *self = roar_crc24_add(*self, data, len);
+
+ return 0;
+}
+
 //ll