static int arc4_seed_proc_sys_kernel_random_uuid( void )
{
/*
* Occasionally, somebody will make /proc/sys accessible in a chroot,
* but not /dev/urandom. Let's try /proc/sys/kernel/random/uuid.
* Its format is stupid, so we need to decode it from hex.
*/
char buf[ 128 ];
HB_U8 entropy[ 64 ];
int bytes, i, nybbles;
for( bytes = 0; bytes < ADD_ENTROPY; )
{
int fd = open( "/proc/sys/kernel/random/uuid", O_RDONLY, 0 );
int n;
if( fd < 0 )
return -1;
n = read( fd, buf, sizeof( buf ) );
close( fd );
if( n <= 0 )
return -1;
memset( entropy, 0, sizeof( entropy ) );
for( i = nybbles = 0; i < n; ++i )
{
if( HB_ISXDIGIT( buf[ i ] ) )
{
int nyb = hex_char_to_int( buf[ i ] );
if( nybbles & 1 )
entropy[ nybbles / 2 ] |= nyb;
else
entropy[ nybbles / 2 ] |= nyb << 4;
++nybbles;
}
}
if( nybbles < 2 )
return -1;
arc4_addrandom( entropy, nybbles / 2 );
bytes += nybbles / 2;
}
memset( entropy, 0, sizeof( entropy ) );
memset( buf, 0, sizeof( buf ) );
return 0;
}
int hb_macro_yylex( YYSTYPE * yylval_ptr, HB_MACRO_PTR pMacro )
{
PHB_MACRO_LEX pLex = ( PHB_MACRO_LEX ) pMacro->pLex;
while( pLex->nSrc < pLex->nLen )
{
unsigned char ch = ( unsigned char ) pLex->pString[ pLex->nSrc++ ];
switch( ch )
{
case ' ':
case '\t':
break;
case '$':
case ',':
case '|':
case '@':
case '(':
case '{':
pLex->quote = HB_TRUE;
return ch;
case ')':
case '}':
case ']':
pLex->quote = HB_FALSE;
return ch;
case '#':
pLex->quote = HB_TRUE;
return NE1;
case '!':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return NE2;
}
return NOT;
case '<':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '>' )
{
pLex->nSrc++;
return NE2;
}
else if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return LE;
}
return '<';
case '>':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return GE;
}
return '>';
case '=':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return EQ;
}
else if( pLex->pString[ pLex->nSrc ] == '>' && HB_SUPPORT_HARBOUR )
{
pLex->nSrc++;
return HASHOP;
}
return '=';
case '+':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '+' )
{
pLex->nSrc++;
return INC;
}
else if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return PLUSEQ;
}
return '+';
case '-':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '-' )
{
pLex->nSrc++;
return DEC;
}
else if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return MINUSEQ;
}
else if( pLex->pString[ pLex->nSrc ] == '>' )
{
pLex->nSrc++;
return ALIASOP;
}
return '-';
case '*':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '*' )
{
pLex->nSrc++;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return EXPEQ;
}
return POWER;
}
else if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return MULTEQ;
}
return '*';
case '/':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return DIVEQ;
}
return '/';
case '%':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return MODEQ;
}
return '%';
case '^':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return EXPEQ;
}
return POWER;
case ':':
pLex->quote = HB_TRUE;
if( pLex->pString[ pLex->nSrc ] == '=' )
{
pLex->nSrc++;
return INASSIGN;
}
else if( pLex->pString[ pLex->nSrc ] == ':' )
{
yylval_ptr->string = "SELF";
return IDENTIFIER;
}
return ':';
case '.':
pLex->quote = HB_TRUE;
if( pLex->nSrc < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ pLex->nSrc ] ) )
{
HB_SIZE ul = pLex->nSrc;
while( ++ul < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ ul ] ) ) {};
ul -= --pLex->nSrc;
return hb_lexNumConv( yylval_ptr, pLex, ul );
}
if( pLex->nLen - pLex->nSrc >= 4 &&
pLex->pString[ pLex->nSrc + 3 ] == '.' )
{
if( ( pLex->pString[ pLex->nSrc + 0 ] | ( 'a' - 'A' ) ) == 'a' &&
( pLex->pString[ pLex->nSrc + 1 ] | ( 'a' - 'A' ) ) == 'n' &&
( pLex->pString[ pLex->nSrc + 2 ] | ( 'a' - 'A' ) ) == 'd' )
{
pLex->nSrc += 4;
return AND;
}
if( ( pLex->pString[ pLex->nSrc + 0 ] | ( 'a' - 'A' ) ) == 'n' &&
( pLex->pString[ pLex->nSrc + 1 ] | ( 'a' - 'A' ) ) == 'o' &&
( pLex->pString[ pLex->nSrc + 2 ] | ( 'a' - 'A' ) ) == 't' )
{
pLex->nSrc += 4;
return NOT;
}
}
if( pLex->nLen - pLex->nSrc >= 3 &&
pLex->pString[ pLex->nSrc + 2 ] == '.' )
{
if( ( pLex->pString[ pLex->nSrc + 0 ] | ( 'a' - 'A' ) ) == 'o' &&
( pLex->pString[ pLex->nSrc + 1 ] | ( 'a' - 'A' ) ) == 'r' )
{
pLex->nSrc += 3;
return OR;
}
}
if( pLex->nLen - pLex->nSrc >= 2 &&
pLex->pString[ pLex->nSrc + 1 ] == '.' )
{
if( ( pLex->pString[ pLex->nSrc ] | ( 'a' - 'A' ) ) == 't' ||
( pLex->pString[ pLex->nSrc ] | ( 'a' - 'A' ) ) == 'y' )
{
pLex->quote = HB_FALSE;
pLex->nSrc += 2;
return TRUEVALUE;
}
if( ( pLex->pString[ pLex->nSrc ] | ( 'a' - 'A' ) ) == 'f' ||
( pLex->pString[ pLex->nSrc ] | ( 'a' - 'A' ) ) == 'n' )
{
pLex->quote = HB_FALSE;
pLex->nSrc += 2;
return FALSEVALUE;
}
if( pLex->pString[ pLex->nSrc ] == '.' )
{
pLex->nSrc += 2;
return EPSILON;
}
}
return '.';
case '[':
if( pLex->quote )
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, ']' );
pLex->quote = HB_TRUE;
return '[';
case '`':
case '\'':
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, '\'' );
case '"':
return hb_lexStringCopy( yylval_ptr, pMacro, pLex, '"' );
case '&':
if( pLex->nSrc < pLex->nLen )
{
if( HB_ISFIRSTIDCHAR( pLex->pString[ pLex->nSrc ] ) )
{
/* [&<keyword>[.[<nextidchars>]]]+ */
int iParts = 0;
pLex->quote = HB_FALSE;
yylval_ptr->string = pLex->pDst;
pLex->nSrc--;
do
{
++iParts;
*pLex->pDst++ = '&';
pLex->nSrc++;
hb_lexIdentCopy( pLex );
if( pLex->pString[ pLex->nSrc ] == '.' )
{
++iParts;
*pLex->pDst++ = '.';
pLex->nSrc++;
hb_lexIdentCopy( pLex );
}
}
while( pLex->nLen - pLex->nSrc > 1 &&
pLex->pString[ pLex->nSrc ] == '&' &&
HB_ISFIRSTIDCHAR( pLex->pString[ pLex->nSrc + 1 ] ) );
if( iParts == 2 && *( pLex->pDst - 1 ) == '.' )
{
pLex->pDst--;
iParts = 1;
}
*pLex->pDst++ = '\0';
if( iParts == 1 )
{
yylval_ptr->string++;
if( pLex->pDst - yylval_ptr->string > HB_SYMBOL_NAME_LEN + 1 )
( ( char * ) yylval_ptr->string )[ HB_SYMBOL_NAME_LEN ] = '\0';
return MACROVAR;
}
return MACROTEXT;
}
else if( pLex->pString[ pLex->nSrc ] == '\'' ||
pLex->pString[ pLex->nSrc ] == '"' ||
pLex->pString[ pLex->nSrc ] == '[' )
hb_macroError( EG_SYNTAX, pMacro );
}
pLex->quote = HB_TRUE;
return '&';
default:
if( HB_ISDIGIT( ch ) )
{
HB_SIZE n = pLex->nSrc;
pLex->quote = HB_FALSE;
if( ch == '0' && n < pLex->nLen )
{
if( pLex->pString[ n ] == 'd' || pLex->pString[ n ] == 'D' )
{
while( ++n < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ n ] ) ) {};
if( n - pLex->nSrc == 9 )
{
int year, month, day;
hb_dateStrGet( pLex->pString + pLex->nSrc + 1,
&year, &month, &day );
yylval_ptr->valLong.lNumber =
hb_dateEncode( year, month, day );
pLex->nSrc = n;
if( yylval_ptr->valLong.lNumber == 0 &&
( year != 0 || month != 0 || day != 0 ) )
{
hb_macroError( EG_SYNTAX, pMacro );
}
return NUM_DATE;
}
else if( n - pLex->nSrc == 2 &&
pLex->pString[ pLex->nSrc + 1 ] == '0' )
{
yylval_ptr->valLong.lNumber = 0;
return NUM_DATE;
}
n = pLex->nSrc;
}
else if( pLex->pString[ n ] == 'x' ||
pLex->pString[ n ] == 'X' )
{
while( ++n < pLex->nLen &&
HB_ISXDIGIT( pLex->pString[ n ] ) ) {};
if( n == pLex->nSrc + 1 )
--n;
}
else
{
while( n < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ n ] ) )
++n;
if( pLex->nLen - n > 1 && pLex->pString[ n ] == '.' &&
HB_ISDIGIT( pLex->pString[ n + 1 ] ) )
{
while( ++n < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ n ] ) ) {};
}
}
}
else
{
while( n < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ n ] ) )
++n;
if( pLex->nLen - n > 1 && pLex->pString[ n ] == '.' &&
HB_ISDIGIT( pLex->pString[ n + 1 ] ) )
{
while( ++n < pLex->nLen &&
HB_ISDIGIT( pLex->pString[ n ] ) ) {};
}
}
n -= --pLex->nSrc;
return hb_lexNumConv( yylval_ptr, pLex, n );
}
else if( HB_ISFIRSTIDCHAR( ch ) )
{
HB_SIZE nLen;
pLex->quote = HB_FALSE;
yylval_ptr->string = pLex->pDst;
*pLex->pDst++ = ch - ( ( ch >= 'a' && ch <= 'z' ) ? 'a' - 'A' : 0 );
hb_lexIdentCopy( pLex );
if( pLex->nLen - pLex->nSrc > 1 &&
pLex->pString[ pLex->nSrc ] == '&' &&
HB_ISFIRSTIDCHAR( pLex->pString[ pLex->nSrc + 1 ] ) )
{
/* [<keyword>][&<keyword>[.[<nextidchars>]]]+ */
do
{
*pLex->pDst++ = '&';
pLex->nSrc++;
hb_lexIdentCopy( pLex );
if( pLex->pString[ pLex->nSrc ] == '.' )
{
*pLex->pDst++ = '.';
pLex->nSrc++;
hb_lexIdentCopy( pLex );
}
}
while( pLex->nLen - pLex->nSrc > 1 &&
pLex->pString[ pLex->nSrc ] == '&' &&
HB_ISFIRSTIDCHAR( pLex->pString[ pLex->nSrc + 1 ] ) );
*pLex->pDst++ = '\0';
return MACROTEXT;
}
nLen = pLex->pDst - yylval_ptr->string;
*pLex->pDst++ = '\0';
if( nLen == 1 )
{
if( pLex->nLen > pLex->nSrc &&
pLex->pString[ pLex->nSrc ] == '"' )
{
switch( yylval_ptr->string[ 0 ] )
{
case 'E':
pLex->nSrc++;
return hb_lexStringExtCopy( yylval_ptr, pMacro, pLex );
case 'T':
pLex->nSrc++;
return hb_lexTimestampGet( yylval_ptr, pMacro, pLex );
case 'D':
pLex->nSrc++;
return hb_lexDateGet( yylval_ptr, pMacro, pLex );
}
}
}
else if( nLen == 2 )
{
if( yylval_ptr->string[ 0 ] == 'I' &&
yylval_ptr->string[ 1 ] == 'F' )
{
hb_lexSkipBlank( pLex );
if( pLex->nSrc < pLex->nLen &&
pLex->pString[ pLex->nSrc ] == '(' )
return IIF;
}
}
else if( nLen == 3 )
{
if( yylval_ptr->string[ 0 ] == 'I' &&
yylval_ptr->string[ 1 ] == 'I' &&
yylval_ptr->string[ 2 ] == 'F' )
{
hb_lexSkipBlank( pLex );
if( pLex->nSrc < pLex->nLen &&
pLex->pString[ pLex->nSrc ] == '(' )
return IIF;
}
else if( yylval_ptr->string[ 0 ] == 'N' &&
yylval_ptr->string[ 1 ] == 'I' &&
yylval_ptr->string[ 2 ] == 'L' )
return NIL;
}
else /* nLen >= 4 */
{
switch( yylval_ptr->string[ 0 ] )
{
case '_':
if( nLen <= 6 && memcmp( "FIELD", yylval_ptr->string + 1,
nLen - 1 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->nSrc + 1 < pLex->nLen &&
pLex->pString[ pLex->nSrc ] == '-' &&
pLex->pString[ pLex->nSrc + 1 ] == '>' )
return FIELD;
}
break;
case 'F':
if( nLen <= 5 && memcmp( "IELD", yylval_ptr->string + 1,
nLen - 1 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->nSrc + 1 < pLex->nLen &&
pLex->pString[ pLex->nSrc ] == '-' &&
pLex->pString[ pLex->nSrc + 1 ] == '>' )
return FIELD;
}
break;
case 'Q':
if( nLen == 5 && memcmp( "SELF", yylval_ptr->string + 1,
4 ) == 0 )
{
hb_lexSkipBlank( pLex );
if( pLex->nSrc < pLex->nLen &&
pLex->pString[ pLex->nSrc ] == '(' )
{
HB_SIZE n = pLex->nSrc;
while( ++n < pLex->nLen )
{
if( pLex->pString[ n ] == ')' )
{
pLex->nSrc = n + 1;
return SELF;
}
else if( pLex->pString[ n ] != ' ' &&
pLex->pString[ n ] != '\t' )
break;
}
}
}
break;
}
if( pLex->pDst - yylval_ptr->string > HB_SYMBOL_NAME_LEN + 1 )
( ( char * ) yylval_ptr->string )[ HB_SYMBOL_NAME_LEN ] = '\0';
}
return IDENTIFIER;
}
return ch;
}
}
return 0;
}
