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-rw-r--r--src/crypto.h10
-rw-r--r--src/encode/base64.c102
-rw-r--r--src/encode/base64.h4
-rw-r--r--src/encode/uuencode.c113
-rw-r--r--src/encode/uuencode.h4
5 files changed, 233 insertions, 0 deletions
diff --git a/src/crypto.h b/src/crypto.h
index 27dca51..eff9ffe 100644
--- a/src/crypto.h
+++ b/src/crypto.h
@@ -4,6 +4,9 @@
#include "hash/sha01.h"
#include "hash/sha2xx.h"
+#include "encode/uuencode.h"
+#include "encode/base64.h"
+
unsigned i_lr(unsigned, unsigned);
unsigned i_rr(unsigned, unsigned);
@@ -14,6 +17,13 @@ static const luaL_Reg crypto_function_list [] = {
{"sha256",l_sha256},
{"sha224",l_sha224},
+ {"uuencode",l_uuencode},
+ {"uudecode",l_uudecode},
+
+ {"base64encode",l_base64encode},
+ {"base64decode",l_base64decode},
+
+
{NULL,NULL}
};
diff --git a/src/encode/base64.c b/src/encode/base64.c
new file mode 100644
index 0000000..2cdda7e
--- /dev/null
+++ b/src/encode/base64.c
@@ -0,0 +1,102 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../crypto.h"
+
+int char_index(int c){
+ if(c <= 25) return 65 + c;
+ if(c <= 51) return 71 + c;
+ if(c <= 61) return (c - 52)+48;
+ if(c == 62) return 43;
+ if(c == 63) return 47;
+ return 61;
+}
+
+int ichar_index(int c){
+ if(65 <= c && c <= 90) return c - 65;
+ if(97 <= c && c <= 122) return c - 97 + 26;
+ if(48 <= c && c <= 57) return c - 48 + 52;
+ if(c == 47) return 63;
+ return 0;
+}
+
+int de_base64(char* in, char* out){
+ int len = 0;
+ for(int i = 0; in[i]!='\0'; i++) len++;
+
+ //char out[len];
+ for(int i = 0; i < len; i+=4){
+ uint8_t u1 = i>len?0:in[i];
+ uint8_t u2 = i+1>len?0:in[i+1];
+ uint8_t u3 = i+2>len?0:in[i+2];
+ uint8_t u4 = i+3>len?0:in[i+3];
+
+ u1 = ichar_index(u1);
+ u2 = ichar_index(u2);
+ u3 = ichar_index(u3);
+ u4 = ichar_index(u4);
+
+ uint8_t left = u1 << 2 | u2 >> 4;
+ uint8_t middle = u2 << 4 | u3 >> 2;
+ uint8_t right = u3 << 6 | u4;
+
+ if(u4==0) sprintf(out,"%s%c%c",out,left,middle);
+ else if(u3==0) sprintf(out,"%s%c",out,left);
+ else sprintf(out,"%s%c%c%c",out,left,middle,right);
+
+ }
+ return 0;
+}
+int en_base64(char* in, char* out){
+ int len = 0;
+ for(int i = 0; in[i]!='\0'; i++) len++;
+
+ //char out[(len+1)*3];
+ for(int i = 0; i < len; i+=3){
+ uint8_t f = i>len?0:in[i];
+ uint8_t s = i+1>len?0:in[i+1];
+ uint8_t t = i+2>len?0:in[i+2];
+
+ uint8_t i1 = f>>2;
+ uint8_t i2 = (uint8_t)(f<<6)>>2 | (s>>4);
+ uint8_t i3 = (uint8_t)(s<<4)>>2 | (t>>6);
+ uint8_t i4 = t & 0x3f;
+
+ if(t==0)i4 = 64;
+ if(s==0)i3 = 64;
+ sprintf(out,"%s%c%c%c%c",out,char_index(i1),char_index(i2),
+ char_index(i3),char_index(i4));
+ }
+ return 0;
+}
+
+int l_base64encode(lua_State* L){
+ size_t len;
+ const char* _a = lua_tolstring(L, 1, &len);
+ char *a = calloc(len, sizeof * a);
+ memcpy(a, _a, len);
+
+ char* encode = calloc(len * 3,sizeof * encode);
+ en_base64(a, encode);
+ lua_pushstring(L, encode);
+
+ free(a);
+ free(encode);
+ return 1;
+};
+
+int l_base64decode(lua_State* L){
+ size_t len;
+ const char* _a = lua_tolstring(L, 1, &len);
+ char *a = calloc(len,sizeof *a);
+ memcpy(a, _a, len);
+
+ char* encode = calloc(len, sizeof *encode);
+ de_base64(a, encode);
+ lua_pushstring(L, encode);
+
+ free(a);
+ free(encode);
+ return 1;
+};
diff --git a/src/encode/base64.h b/src/encode/base64.h
new file mode 100644
index 0000000..216d5e2
--- /dev/null
+++ b/src/encode/base64.h
@@ -0,0 +1,4 @@
+#include "../lua.h"
+
+int l_base64encode(lua_State*);
+int l_base64decode(lua_State*);
diff --git a/src/encode/uuencode.c b/src/encode/uuencode.c
new file mode 100644
index 0000000..6f92fb0
--- /dev/null
+++ b/src/encode/uuencode.c
@@ -0,0 +1,113 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include "../crypto.h"
+
+int uuechar_index(int c){
+ return c + 32;
+}
+
+int uueichar_index(int c){
+ return c - 32;
+}
+
+int de_uu(char* in2, char* out){
+ int len = 0;
+ for(int i = 0; in2[i]!='\0'; i++) len++;
+ char in[len*2];
+ sprintf(in," %s",in2); //padding byte to make things cleaner
+
+ //char out[len];
+ int skipped = 0;
+ for(int i = 0; i<len; i+=4){
+ if((i - skipped*2)%60==0){
+ i+=2;
+ skipped+=1;
+ };
+
+ uint8_t u1 = i>len?0:in[i];
+ uint8_t u2 = i+1>len?0:in[i+1];
+ uint8_t u3 = i+2>len?0:in[i+2];
+ uint8_t u4 = i+3>len?0:in[i+3];
+
+ u1 = uueichar_index(u1);
+ u2 = uueichar_index(u2);
+ u3 = uueichar_index(u3);
+ u4 = uueichar_index(u4);
+
+ uint8_t left = u1 << 2 | u2 >> 4;
+ uint8_t middle = u2 << 4 | u3 >> 2;
+ uint8_t right = u3 << 6 | u4;
+ if(u1 < 64 && u2 < 64){
+ sprintf(out,"%s%c",out,left);
+ }
+ if(u2 < 64 && u3 < 64){
+ sprintf(out,"%s%c",out,middle);
+ }
+ if(u3 < 64 && u4 < 64){
+ sprintf(out,"%s%c",out,right);
+ }
+
+ }
+ return 0;
+}
+int en_uu(char* in, char* out){
+ int len = 0;
+ for(int i = 0; in[i]!='\0'; i++) len++;
+
+ for(int i = 0; i < len; i+=3){
+ uint8_t f = i>len?0:in[i];
+ uint8_t s = i+1>len?0:in[i+1];
+ uint8_t t = i+2>len?0:in[i+2];
+
+ uint8_t i1 = f>>2;
+ uint8_t i2 = (uint8_t)(f<<6)>>2 | (s>>4);
+ uint8_t i3 = (uint8_t)(s<<4)>>2 | (t>>6);
+ uint8_t i4 = t & 0x3f;
+
+ if(t==0)i4 = 64;
+ if(s==0)i3 = 64;
+ if(i / 3 * 4 % 60 == 0){
+ if(i==0) sprintf(out,"%c",(len - i >= 45) ? 'M':uuechar_index(len - i));
+ else sprintf(out,"%s\n%c",out,(len - i >= 45) ? 'M':uuechar_index(len - i));
+ }
+ sprintf(out,"%s%c%c%c%c",out,uuechar_index(i1),uuechar_index(i2),
+ uuechar_index(i3),uuechar_index(i4));
+ }
+ sprintf(out,"%s\n`",out);
+
+ return 0;
+}
+
+
+
+int l_uuencode(lua_State* L){
+ size_t len;
+ const char* _a = lua_tolstring(L, 1, &len);
+ char *a = calloc(len, sizeof * a);
+ memcpy(a, _a, len);
+
+ char* encode = calloc(len * 3,sizeof * encode);
+ en_uu(a, encode);
+ lua_pushstring(L, encode);
+
+ free(a);
+ free(encode);
+ return 1;
+};
+
+int l_uudecode(lua_State* L){
+ size_t len;
+ const char* _a = lua_tolstring(L, 1, &len);
+ char *a = calloc(len, sizeof * a);
+ memcpy(a, _a, len);
+
+ char* encode = calloc(len,sizeof * encode);
+ de_uu(a, encode);
+ lua_pushstring(L, encode);
+
+ free(a);
+ free(encode);
+ return 1;
+};
diff --git a/src/encode/uuencode.h b/src/encode/uuencode.h
new file mode 100644
index 0000000..115dbd3
--- /dev/null
+++ b/src/encode/uuencode.h
@@ -0,0 +1,4 @@
+#include "../lua.h"
+
+int l_uuencode(lua_State*);
+int l_uudecode(lua_State*);
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-13 11:05:14 +0000