Support for BOM

Added support for BOM (byte order mark), it will fix issue with opening decrypted file in text editors.

BDO_decrypt.c

@@ -4,6 +4,7 @@
 #include "zlib.h"
 
 const wchar_t CHAR_LF = 0x000A;
+const wchar_t BOM_UTF16LE = 0xFEFF;
 const unsigned long MAX_BUFF_SIZE = 4096;
 
 
@@ -32,7 +33,7 @@ int main(int argc, char **argv)
 	fseek(srcFile, 0, SEEK_END);
 	compressedSize = ftell(srcFile) - 4; // 1st 4 bytes holds information about uncompressed data size
 	rewind(srcFile);
-	
+
 	fread(&uncompressedSize, 4, 1, srcFile);
 
 	unsigned char *pCompressedData = (unsigned char *) calloc(compressedSize, sizeof(unsigned char));
@@ -58,6 +59,9 @@ int main(int argc, char **argv)
 
 		rewind(tmpFile);
 
+		//write BOM (byte order mark) 0xFEFF = UTF-16 little-endian
+		fwrite(&BOM_UTF16LE, 2, 1, outFile);
+
 		while (1){
 			if (fread(&strSize, 4, 1, tmpFile) != 1) break;
 			if (fread(&strType, 4, 1, tmpFile) != 1) break;

BDO_encrypt.c

@@ -6,6 +6,7 @@
 const wchar_t CHAR_NULL = 0x0000;
 const wchar_t CHAR_CR = 0x000D;
 const wchar_t CHAR_LF = 0x000A;
+const wchar_t BOM_UTF16LE = 0xFEFF;
 const unsigned long MAX_BUFF_SIZE = 4096;
 
 
@@ -39,21 +40,26 @@ int main(int argc, char **argv)
 	int a;
 	wchar_t strBuff[MAX_BUFF_SIZE];
 
+	//Handle BOM (if present, skip it)
+	fread(&strBuff[0], 2, 1, srcFile);
+	if (strBuff[0] != BOM_UTF16LE) {
+		rewind(srcFile);
+	}
+
 	while (1){
 		wmemset(strBuff, CHAR_NULL, MAX_BUFF_SIZE);
 
 		if (fwscanf(srcFile, L"%u\t%u\t%u\t%u\t%u\t", &strType, &strID1, &strID2, &strID3, &strID4) < 5) break; //this pattern "eats" leading white space from next string, so I had to enclose strings in double quotes (in bss -> txt conversion)
-		
+
 		fseek(srcFile, 2, SEEK_CUR); //skip leading double quotes
-		
+
 		for (a = 0; a < MAX_BUFF_SIZE; a++) {
 			fread(&strBuff[a], 2, 1, srcFile);
 			if (a > 0) {
-				if (strBuff[a] == CHAR_LF && strBuff[a-1] == CHAR_CR) {
-					if (strBuff[a-2] == L'"') {
-						strBuff[a-2] = CHAR_NULL;
+				if (strBuff[a] == CHAR_LF || strBuff[a] == CHAR_CR) {
+					if (strBuff[a-1] == L'"') {
+						strBuff[a-1] = CHAR_NULL;
 					}
-					strBuff[a-1] = CHAR_NULL;
 					strBuff[a] = CHAR_NULL;
 					break;
 				}
@@ -85,7 +91,7 @@ int main(int argc, char **argv)
 	fseek(tmpFile, 0, SEEK_END);
 	uncompressedSize = ftell(tmpFile);
 	rewind(tmpFile);
-	
+
 	compressedSize = compressBound(uncompressedSize);
 
 	unsigned char *pCompressedData = (unsigned char *) calloc(compressedSize, sizeof(unsigned char));