static int GetHexBase(const char * &line, unsigned char *store, int count, bool fixedLen, bool asc)
{
line=skipspace(line);
const char *sline=line;
unsigned char *sstore=store;
int scount=count;
while(count) {
if(line[0]==0 || line[1]==0 || !isxdigit(line[0]) || !isxdigit(line[1])) break;
if(asc) {
*store++=line[0]; *store++=line[1];
}
else {
int d1=HexDigit(line[0]);
int d0=HexDigit(line[1]);
*store++=(d1<<4) + d0;
}
line+=2; count--;
}
if(asc) *store=0; // make sure strings are NULL terminated
if((!count || (!fixedLen && count!=scount)) &&
(!*line || isspace(*line) || *line==';' || *line==']' || *line=='/') ) return scount-count;
memset(sstore,0,scount);
line=sline;
return 0;
}
void printByte(unsigned int theByte) {
char HexBuffer[3];
HexBuffer[2] = 0;
HexBuffer[1] = HexDigit(theByte & 0x000f);
theByte = theByte >> 4;
HexBuffer[0] = HexDigit(theByte & 0x000f);
printString(HexBuffer);
}
void printHex(unsigned int Number) {
char HexBuffer[5];
HexBuffer[4] = 0;
HexBuffer[3] = HexDigit(Number & 0x000f);
Number = Number >> 4;
HexBuffer[2] = HexDigit(Number & 0x000f);
Number = Number >> 4;
HexBuffer[1] = HexDigit(Number & 0x000f);
Number = Number >> 4;
HexBuffer[0] = HexDigit(Number & 0x000f);
printString(HexBuffer);
}
void LCD_Print_Hex(unsigned int number)
{
char hexBuffer[5];
hexBuffer[4] = 0;
hexBuffer[3] = HexDigit(number & 0x000f);
number = number >> 4;
hexBuffer[2] = HexDigit(number & 0x000f);
number = number >> 4;
hexBuffer[1] = HexDigit(number & 0x000f);
number = number >> 4;
hexBuffer[0] = HexDigit(number & 0x000f);
LCD_Print_String(hexBuffer);
}
//*****************************************************************************
//
// Decodes a single %xx escape sequence as an ASCII character.
//
// \param pcEncoded points to the ``%'' character at the start of a three
// character escape sequence which represents a single ASCII character.
// \param pcDecoded points to a byte which will be written with the decoded
// character assuming the escape sequence is valid.
//
// This function decodes a single escape sequence of the form ``%xy'' where
// x and y represent hexadecimal digits. If each digit is a valid hex digit,
// the function writes the decoded character to the pcDecoded buffer and
// returns true, else it returns false.
//
// \return Returns \b true on success or \b false if pcEncoded does not point
// to a valid escape sequence.
//
//*****************************************************************************
tBoolean
DecodeHexEscape(const char *pcEncoded, char *pcDecoded)
{
if((pcEncoded[0] != '%') || !IsValidHexDigit(pcEncoded[1]) ||
!IsValidHexDigit(pcEncoded[2]))
{
return(false);
}
else
{
*pcDecoded = ((HexDigit(pcEncoded[1]) * 16) +
HexDigit(pcEncoded[2]));
return(true);
}
}
bool IsHex(const std::string& str)
{
for(std::string::const_iterator it(str.begin()); it != str.end(); ++it)
{
if (HexDigit(*it) < 0)
return false;
}
return (str.size() > 0) && (str.size()%2 == 0);
}
void ReadHEXPwd(LPBYTE b, LPCSTR src)
{
for(int n = 0; *src; n++)
{
if(n >= FTP_PWD_LEN) {
fprintf(stderr, "Password code too long!\n");
abort();
}
if(*src == ',' || isspace(*src))
{
src++;
continue;
}
*b++ = (HexDigit(src[0]) << 4) + HexDigit(src[1]);
src += 2;
}
}
/*
* Remove NuLib2's normalization magic (e.g. "%2f" for '/').
*
* This always results in the filename staying the same length or getting
* smaller, so we can do it in place in the buffer.
*/
void DenormalizePath(NulibState* pState, char* pathBuf)
{
const char* srcp;
char* dstp;
char ch;
srcp = pathBuf;
dstp = pathBuf;
while (*srcp != '\0') {
if (*srcp == kForeignIndic) {
srcp++;
if (*srcp == kForeignIndic) {
*dstp++ = kForeignIndic;
srcp++;
} else if (isxdigit((int)*srcp)) {
ch = HexDigit(*srcp) << 4;
srcp++;
if (isxdigit((int)*srcp)) {
/* valid, output char */
ch += HexDigit(*srcp);
if (ch != '\0') /* used by Win32 converter */
*dstp++ = ch;
srcp++;
} else {
/* bogus '%' with trailing hex digit found! */
*dstp++ = kForeignIndic;
*dstp++ = *(srcp-1);
}
} else {
/* bogus lone '%s' found! */
*dstp++ = kForeignIndic;
}
} else {
*dstp++ = *srcp++;
}
}
*dstp = '\0';
Assert(dstp <= srcp);
}
std::vector<unsigned char> ParseHex(const char* psz)
{
// convert hex dump to vector
std::vector<unsigned char> vch;
while (true)
{
while (isspace(*psz))
psz++;
signed char c = HexDigit(*psz++);
if (c == (signed char)-1)
break;
unsigned char n = (c << 4);
c = HexDigit(*psz++);
if (c == (signed char)-1)
break;
n |= c;
vch.push_back(n);
}
return vch;
}
bool IsHexNumber(const std::string& str)
{
size_t starting_location = 0;
if (str.size() > 2 && *str.begin() == '0' && *(str.begin()+1) == 'x') {
starting_location = 2;
}
for (auto c : str.substr(starting_location)) {
if (HexDigit(c) < 0) return false;
}
// Return false for empty string or "0x".
return (str.size() > starting_location);
}
long CKeyRegistry::SetHexKey(CString sString)
{
sString.MakeUpper();
long key = 0;
for (int i = 0; i < sString.GetLength(); i++)
{
key |= HexDigit(sString[i]);
if (i < 7)
key <<= 4;
}
return key;
}
void printHex(unsigned int Number)
{
// Output the number over the serial port as
// as hexadecimal string.
char TxString[9];
int Index=8;
TxString[Index]=0; // terminate the string
Index--;
while(Index >=0)
{
TxString[Index]=HexDigit(Number & 0x0f);
Number = Number >> 4;
Index--;
}
eputs(TxString);
}
void printInteger(unsigned int Number)
{
// Output the number over the serial port as
// as hexadecimal string.
// Transmission is framed with a [ ] pair of brackets.
char TxString[11];
int Index=9;
TxString[0]='[';
TxString[9]=']';
TxString[10]=0;// terminate the string
Index--;
while(Index >0)
{
TxString[Index]=HexDigit(Number & 0x0f);
Number = Number >> 4;
Index--;
}
printString(TxString);
}
//
// Parse a quoted string.
//
bool FParse::QuotedString( const TCHAR* Buffer, FString& Value, int32* OutNumCharsRead )
{
if (OutNumCharsRead)
{
*OutNumCharsRead = 0;
}
const TCHAR* Start = Buffer;
// Require opening quote
if (*Buffer++ != TCHAR('"'))
{
return false;
}
while (*Buffer && *Buffer != TCHAR('"') && *Buffer != TCHAR('\n') && *Buffer != TCHAR('\r'))
{
if (*Buffer != TCHAR('\\')) // unescaped character
{
Value += *Buffer++;
}
else if (*++Buffer == TCHAR('\\')) // escaped backslash "\\"
{
Value += TEXT("\\");
++Buffer;
}
else if (*Buffer == TCHAR('\"')) // escaped double quote "\""
{
Value += TCHAR('"');
++Buffer;
}
else if (*Buffer == TCHAR('\'')) // escaped single quote "\'"
{
Value += TCHAR('\'');
++Buffer;
}
else if (*Buffer == TCHAR('n')) // escaped newline
{
Value += TCHAR('\n');
++Buffer;
}
else if (*Buffer == TCHAR('r')) // escaped carriage return
{
Value += TCHAR('\r');
++Buffer;
}
else // some other escape sequence, assume it's a hex character value
{
Value += FString::Printf(TEXT("%c"), (HexDigit(Buffer[0]) * 16) + HexDigit(Buffer[1]));
Buffer += 2;
}
}
// Require closing quote
if (*Buffer++ != TCHAR('"'))
{
return false;
}
if (OutNumCharsRead)
{
*OutNumCharsRead = (Buffer - Start);
}
return true;
}
