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path: root/src/hash/loselose.c
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Diffstat (limited to 'src/hash/loselose.c')
-rw-r--r--src/hash/loselose.c37
1 files changed, 31 insertions, 6 deletions
diff --git a/src/hash/loselose.c b/src/hash/loselose.c
index f3350f5..55d3fc6 100644
--- a/src/hash/loselose.c
+++ b/src/hash/loselose.c
@@ -3,18 +3,43 @@
#include <stdio.h>
#include <stdint.h>
+struct loselose_hash loselose_init(){
+ return (struct loselose_hash){.hash = 0};
+}
+
+void loselose_update(uint8_t* in, size_t len, struct loselose_hash* hash){
+ for(int i = 0; i != len; i++){
+ hash->hash += (uint64_t)*in;
+ in++;
+ }
+}
+
+uint64_t loselose_final(struct loselose_hash* hash){
+ return hash->hash;
+}
+
uint64_t loselose(uint8_t* in, size_t len){
- uint64_t hash = 0;
+ struct loselose_hash a = loselose_init();
+ loselose_update(in, len, &a);
+ return loselose_final(&a);
+}
+
+common_hash_init_update(loselose);
- for(int i = 0; i != len; i++){
- hash += (uint64_t)*in;
- in++;
- }
+int l_loselose_final(lua_State* L){
+ lua_pushstring(L, "ud");
+ lua_gettable(L, 1);
- return hash;
+ struct loselose_hash* a = (struct loselose_hash*)lua_touserdata(L, -1);
+ uint64_t u = loselose_final(a);
+ char digest[64];
+ sprintf(digest,"%08x",u);
+ lua_pushstring(L, digest);
+ return 1;
}
int l_loselose(lua_State* L){
+ if(lua_gettop(L) == 0) return l_loselose_init(L);
size_t len = 0;
uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);