From 35c37ef1221d5860731435137059dc4533adff42 Mon Sep 17 00:00:00 2001
From: ame <amelia@amyy.cc>
Date: Thu, 28 Mar 2024 12:41:17 -0500
Subject: more hashes fixed

---
 src/hash/fletcher.h | 63 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 37 insertions(+), 26 deletions(-)

(limited to 'src/hash/fletcher.h')

diff --git a/src/hash/fletcher.h b/src/hash/fletcher.h
index c77bce4..d66692f 100644
--- a/src/hash/fletcher.h
+++ b/src/hash/fletcher.h
@@ -1,33 +1,44 @@
 #include "../lua.h"
 #include <stdint.h>
 
-/**
- * calculates a fletcher hash of (len) bytes
- *
- * @param {uint8_t*} input bytes
- * @param {size_t} input length
- * @return {uint8_t} 8 bit hash
-*/
-uint8_t i_fletcher8(uint8_t*,size_t);
-
-/**
- * calculates a fletcher hash of (len) bytes
- *
- * @param {uint8_t*} input bytes
- * @param {size_t} input length
- * @return {uint16_t} 16 bit checksum
-*/
-uint16_t i_fletcher16(uint8_t*,size_t);
-
-/**
- * calculates a fletcher hash of (len) bytes
- *
- * @param {uint8_t*} input bytes
- * @param {size_t} input length
- * @return {uint32_t} 32 bit checksum
-*/
-uint32_t i_fletcher32(uint8_t*,size_t);
+struct fletcher8_hash {
+    uint8_t s1, s2;
+};
+
+struct fletcher16_hash {
+    uint16_t s1, s2;
+};
+
+struct fletcher32_hash {
+    uint32_t s1, s2;
+};
+
+uint8_t fletcher8(uint8_t*,size_t);
+struct fletcher8_hash fletcher8_init();
+void fletcher8_update(uint8_t*, size_t, struct fletcher8_hash*);
+uint8_t fletcher8_final(struct fletcher8_hash*);
+
+uint16_t fletcher16(uint8_t*,size_t);
+struct fletcher16_hash fletcher16_init();
+void fletcher16_update(uint8_t*, size_t, struct fletcher16_hash*);
+uint16_t fletcher16_final(struct fletcher16_hash*);
+
+uint32_t fletcher32(uint8_t*,size_t);
+struct fletcher32_hash fletcher32_init();
+void fletcher32_update(uint8_t*, size_t, struct fletcher32_hash*);
+uint32_t fletcher32_final(struct fletcher32_hash*);
 
 int l_fletcher32(lua_State*);
+int l_fletcher32_init(lua_State*);
+int l_fletcher32_update(lua_State*);
+int l_fletcher32_final(lua_State*);
+
 int l_fletcher16(lua_State*);
+int l_fletcher16_init(lua_State*);
+int l_fletcher16_update(lua_State*);
+int l_fletcher16_final(lua_State*);
+
 int l_fletcher8(lua_State*);
+int l_fletcher8_init(lua_State*);
+int l_fletcher8_update(lua_State*);
+int l_fletcher8_final(lua_State*);
\ No newline at end of file
-- 
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