diff options
| author | ame <[email protected]> | 2024-04-15 08:23:28 -0500 |
|---|---|---|
| committer | ame <[email protected]> | 2024-04-15 08:23:28 -0500 |
| commit | 89c9c2e56c8b547ee0b0e104798c609d8d307f5e (patch) | |
| tree | e864d5bb71d06320ede5a5f15158938dcc4c1912 /src/hash/crc.c | |
| parent | 7018bae05d9c04c799e715294b5c58317f21a5ac (diff) | |
msys2 + fix logging
Diffstat (limited to 'src/hash/crc.c')
| -rw-r--r-- | src/hash/crc.c | 320 |
1 files changed, 160 insertions, 160 deletions
diff --git a/src/hash/crc.c b/src/hash/crc.c index acb6984..650b315 100644 --- a/src/hash/crc.c +++ b/src/hash/crc.c @@ -1,160 +1,160 @@ -#include "../crypto.h" -#include <stdio.h> -#include <stdint.h> -#include <stdio.h> -#include <stdint.h> - -struct crc32_hash crc32_init(){ - return (struct crc32_hash){.crc = 0xFFFFFFFF}; -} - -void crc32_update(uint8_t* data, size_t len, struct crc32_hash* hash){ - for(int i = 0; i < len; i++){ - uint32_t extract = data[i]; - for(int z = 0; z < 8; z++){ - uint32_t b = (extract^hash->crc)&1; - hash->crc>>=1; - if(b) hash->crc^=0xEDB88320; - extract>>=1; - } - } -} - -uint32_t crc32_final(struct crc32_hash* hash){ - return -(hash->crc+1); -} - -uint32_t crc32(uint8_t* data, size_t len){ - struct crc32_hash a = crc32_init(); - crc32_update(data, len, &a); - return crc32_final(&a); -} - -struct crc16_hash crc16_init(){ - return (struct crc16_hash){.crc = 0x0}; -} - -void crc16_update(uint8_t *aa, size_t len, struct crc16_hash *hash){ - for(int i = 0; i != len; i++){ - uint8_t a = aa[i]; - hash->crc ^= a; - for (int z = 0; z < 8; z++){ - if (hash->crc & 1) hash->crc = (hash->crc >> 1) ^ 0xA001; - else hash->crc = (hash->crc >> 1); - } - } -} - -uint16_t crc16_final(struct crc16_hash *hash){ - return hash->crc; -} - -uint16_t crc16(uint8_t *aa, size_t len){ - struct crc16_hash a = crc16_init(); - crc16_update(aa, len, &a); - return crc16_final(&a); -} - -struct crc8_hash crc8_init(){ - return (struct crc8_hash){.crc = 0x00}; -} - -void crc8_update(uint8_t *aa, size_t len, struct crc8_hash *hash){ - for(int i = 0; i != len; i++){ - uint8_t a = aa[i]; - - for (int z = 0; z < 8; z++){ - uint8_t b = (hash->crc ^ a) & 1; - hash->crc >>= 1; - if(b) hash->crc ^= 0x8c; - a >>=1; - } - } -} - -uint8_t crc8_final(struct crc8_hash *hash){ - return hash->crc; -} - -uint8_t crc8(uint8_t *aa, size_t len){ - struct crc8_hash a = crc8_init(); - crc8_update(aa, len, &a); - return crc8_final(&a); -} - -common_hash_clone(crc32); -common_hash_clone(crc16); -common_hash_clone(crc8); - -common_hash_init_update(crc32); -common_hash_init_update(crc16); -common_hash_init_update(crc8); - -int l_crc8_final(lua_State* L){ - struct crc8_hash* a = (struct crc8_hash*)lua_touserdata(L, 1); - uint32_t u = crc8_final(a); - char digest[8]; - sprintf(digest,"%x",u); - lua_pushstring(L, digest); - return 1; -} - -int l_crc16_final(lua_State* L){ - struct crc16_hash* a = (struct crc16_hash*)lua_touserdata(L, 1); - uint32_t u = crc16_final(a); - char digest[16]; - sprintf(digest,"%04x",u); - lua_pushstring(L, digest); - return 1; -} - -int l_crc32_final(lua_State* L){ - struct crc32_hash* a = (struct crc32_hash*)lua_touserdata(L, 1); - uint32_t u = crc32_final(a); - char digest[32]; - sprintf(digest,"%08x",u); - lua_pushstring(L, digest); - return 1; -} - -int l_crc8(lua_State* L){ - if(lua_gettop(L) == 0) return l_crc8_init(L); - size_t len = 0; - uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len); - - char digest[8]; - - uint8_t u = crc8(a, len); - sprintf(digest,"%x",u); - lua_pushstring(L, digest); - - return 1; -} - -int l_crc16(lua_State* L){ - if(lua_gettop(L) == 0) return l_crc16_init(L); - size_t len = 0; - uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len); - - char digest[16]; - - uint16_t u = crc16(a, len); - sprintf(digest,"%x",u); - lua_pushstring(L, digest); - - return 1; -} - -int l_crc32(lua_State* L){ - if(lua_gettop(L) == 0) return l_crc32_init(L); - size_t len = 0; - uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len); - - char digest[32]; - - uint32_t u = crc32(a, len); - sprintf(digest,"%x",u); - lua_pushstring(L, digest); - - return 1; -} +#include "../crypto.h"
+#include <stdio.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdint.h>
+
+struct crc32_hash crc32_init(){
+ return (struct crc32_hash){.crc = 0xFFFFFFFF};
+}
+
+void crc32_update(uint8_t* data, size_t len, struct crc32_hash* hash){
+ for(int i = 0; i < len; i++){
+ uint32_t extract = data[i];
+ for(int z = 0; z < 8; z++){
+ uint32_t b = (extract^hash->crc)&1;
+ hash->crc>>=1;
+ if(b) hash->crc^=0xEDB88320;
+ extract>>=1;
+ }
+ }
+}
+
+uint32_t crc32_final(struct crc32_hash* hash){
+ return -(hash->crc+1);
+}
+
+uint32_t crc32(uint8_t* data, size_t len){
+ struct crc32_hash a = crc32_init();
+ crc32_update(data, len, &a);
+ return crc32_final(&a);
+}
+
+struct crc16_hash crc16_init(){
+ return (struct crc16_hash){.crc = 0x0};
+}
+
+void crc16_update(uint8_t *aa, size_t len, struct crc16_hash *hash){
+ for(int i = 0; i != len; i++){
+ uint8_t a = aa[i];
+ hash->crc ^= a;
+ for (int z = 0; z < 8; z++){
+ if (hash->crc & 1) hash->crc = (hash->crc >> 1) ^ 0xA001;
+ else hash->crc = (hash->crc >> 1);
+ }
+ }
+}
+
+uint16_t crc16_final(struct crc16_hash *hash){
+ return hash->crc;
+}
+
+uint16_t crc16(uint8_t *aa, size_t len){
+ struct crc16_hash a = crc16_init();
+ crc16_update(aa, len, &a);
+ return crc16_final(&a);
+}
+
+struct crc8_hash crc8_init(){
+ return (struct crc8_hash){.crc = 0x00};
+}
+
+void crc8_update(uint8_t *aa, size_t len, struct crc8_hash *hash){
+ for(int i = 0; i != len; i++){
+ uint8_t a = aa[i];
+
+ for (int z = 0; z < 8; z++){
+ uint8_t b = (hash->crc ^ a) & 1;
+ hash->crc >>= 1;
+ if(b) hash->crc ^= 0x8c;
+ a >>=1;
+ }
+ }
+}
+
+uint8_t crc8_final(struct crc8_hash *hash){
+ return hash->crc;
+}
+
+uint8_t crc8(uint8_t *aa, size_t len){
+ struct crc8_hash a = crc8_init();
+ crc8_update(aa, len, &a);
+ return crc8_final(&a);
+}
+
+common_hash_clone(crc32);
+common_hash_clone(crc16);
+common_hash_clone(crc8);
+
+common_hash_init_update(crc32);
+common_hash_init_update(crc16);
+common_hash_init_update(crc8);
+
+int l_crc8_final(lua_State* L){
+ struct crc8_hash* a = (struct crc8_hash*)lua_touserdata(L, 1);
+ uint32_t u = crc8_final(a);
+ char digest[8];
+ sprintf(digest,"%x",u);
+ lua_pushstring(L, digest);
+ return 1;
+}
+
+int l_crc16_final(lua_State* L){
+ struct crc16_hash* a = (struct crc16_hash*)lua_touserdata(L, 1);
+ uint32_t u = crc16_final(a);
+ char digest[16];
+ sprintf(digest,"%04x",u);
+ lua_pushstring(L, digest);
+ return 1;
+}
+
+int l_crc32_final(lua_State* L){
+ struct crc32_hash* a = (struct crc32_hash*)lua_touserdata(L, 1);
+ uint32_t u = crc32_final(a);
+ char digest[32];
+ sprintf(digest,"%08x",u);
+ lua_pushstring(L, digest);
+ return 1;
+}
+
+int l_crc8(lua_State* L){
+ if(lua_gettop(L) == 0) return l_crc8_init(L);
+ size_t len = 0;
+ uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
+
+ char digest[8];
+
+ uint8_t u = crc8(a, len);
+ sprintf(digest,"%x",u);
+ lua_pushstring(L, digest);
+
+ return 1;
+}
+
+int l_crc16(lua_State* L){
+ if(lua_gettop(L) == 0) return l_crc16_init(L);
+ size_t len = 0;
+ uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
+
+ char digest[16];
+
+ uint16_t u = crc16(a, len);
+ sprintf(digest,"%x",u);
+ lua_pushstring(L, digest);
+
+ return 1;
+}
+
+int l_crc32(lua_State* L){
+ if(lua_gettop(L) == 0) return l_crc32_init(L);
+ size_t len = 0;
+ uint8_t* a = (uint8_t*)luaL_checklstring(L, 1, &len);
+
+ char digest[32];
+
+ uint32_t u = crc32(a, len);
+ sprintf(digest,"%x",u);
+ lua_pushstring(L, digest);
+
+ return 1;
+}
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