ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/dlls/msvcrt/console.c

527 lines
15 KiB
C
Raw Blame History

/*
* msvcrt.dll console functions
*
* Copyright 2000 Jon Griffiths
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Note: init and free don't need MT locking since they are called at DLL
* (de)attachment time, which is syncronised for us
*/
#include "msvcrt.h"
#include "wincon.h"
#include "msvcrt/conio.h"
#include "msvcrt/malloc.h"
#include "msvcrt/stdio.h"
#include "mtdll.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/* MT */
#define LOCK_CONSOLE _mlock(_CONIO_LOCK)
#define UNLOCK_CONSOLE _munlock(_CONIO_LOCK)
static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
static int __MSVCRT_console_buffer = MSVCRT_EOF;
/* INTERNAL: Initialise console handles */
void msvcrt_init_console(void)
{
TRACE(":Opening console handles\n");
MSVCRT_console_in = GetStdHandle(STD_INPUT_HANDLE);
/* FIXME: Should be initialised with:
* CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
* NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
*/
MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
(MSVCRT_console_out== INVALID_HANDLE_VALUE))
WARN(":Console handle Initialisation FAILED!\n");
}
/* INTERNAL: Free console handles */
void msvcrt_free_console(void)
{
TRACE(":Closing console handles\n");
CloseHandle(MSVCRT_console_in);
CloseHandle(MSVCRT_console_out);
}
/*********************************************************************
* _cputs (MSVCRT.@)
*/
int _cputs(const char* str)
{
DWORD count;
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
&& count == 1)
retval = 0;
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _getch (MSVCRT.@)
*/
int _getch(void)
{
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (__MSVCRT_console_buffer != MSVCRT_EOF)
{
retval = __MSVCRT_console_buffer;
__MSVCRT_console_buffer = MSVCRT_EOF;
}
else
{
INPUT_RECORD ir;
DWORD count;
DWORD mode = 0;
GetConsoleMode(MSVCRT_console_in, &mode);
if(mode)
SetConsoleMode(MSVCRT_console_in, 0);
do {
if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
{
/* Only interested in ASCII chars */
if (ir.EventType == KEY_EVENT &&
ir.Event.KeyEvent.bKeyDown &&
ir.Event.KeyEvent.uChar.AsciiChar)
{
retval = ir.Event.KeyEvent.uChar.AsciiChar;
break;
}
}
else
break;
} while(1);
if (mode)
SetConsoleMode(MSVCRT_console_in, mode);
}
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _putch (MSVCRT.@)
*/
int _putch(int c)
{
int retval = MSVCRT_EOF;
DWORD count;
LOCK_CONSOLE;
if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
retval = c;
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _getche (MSVCRT.@)
*/
int _getche(void)
{
int retval;
LOCK_CONSOLE;
retval = _getch();
if (retval != MSVCRT_EOF)
retval = _putch(retval);
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _cgets (MSVCRT.@)
*/
char* _cgets(char* str)
{
char *buf = str + 2;
int c;
str[1] = 0; /* Length */
/* FIXME: No editing of string supported */
LOCK_CONSOLE;
do
{
if (str[1] >= str[0] || (str[1]++, c = _getche()) == MSVCRT_EOF || c == '\n')
break;
*buf++ = c & 0xff;
} while (1);
UNLOCK_CONSOLE;
*buf = '\0';
return str + 2;
}
/*********************************************************************
* _ungetch (MSVCRT.@)
*/
int _ungetch(int c)
{
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
retval = __MSVCRT_console_buffer = c;
UNLOCK_CONSOLE;
return retval;
}
/* helper function for _cscanf. Returns the value of character c in the
* given base, or -1 if the given character is not a digit of the base.
*/
static int char2digit(char c, int base) {
if ((c>='0') && (c<='9') && (c<='0'+base-1)) return (c-'0');
if (base<=10) return -1;
if ((c>='A') && (c<='Z') && (c<='A'+base-11)) return (c-'A'+10);
if ((c>='a') && (c<='z') && (c<='a'+base-11)) return (c-'a'+10);
return -1;
}
/*********************************************************************
* _cscanf (MSVCRT.@)
*/
int _cscanf(const char* format, ...)
{
/* NOTE: If you extend this function, extend MSVCRT_fscanf in file.c too */
int rd = 0;
int nch;
va_list ap;
if (!*format) return 0;
WARN("\"%s\": semi-stub\n", format);
va_start(ap, format);
LOCK_CONSOLE;
nch = _getch();
while (*format) {
/* a whitespace character in the format string causes scanf to read,
* but not store, all consecutive white-space characters in the input
* up to the next non-white-space character. One white space character
* in the input matches any number (including zero) and combination of
* white-space characters in the input. */
if (isspace(*format)) {
/* skip whitespace */
while ((nch!=MSVCRT_EOF) && isspace(nch))
nch = _getch();
}
/* a format specification causes scanf to read and convert characters
* in the input into values of a specified type. The value is assigned
* to an argument in the argument list. Format specifications have
* the form %[*][width][{h | l | I64 | L}]type */
/* FIXME: unimplemented: h/l/I64/L modifiers and some type specs. */
else if (*format == '%') {
int st = 0; int suppress = 0; int width = 0;
int base, number_signed;
format++;
/* look for leading asterisk, which means 'suppress assignment of
* this field'. */
if (*format=='*') {
format++;
suppress=1;
}
/* look for width specification */
while (isdigit(*format)) {
width*=10;
width+=*format++ - '0';
}
if (width==0) width=-1; /* no width spec seen */
switch(*format) {
case '%': /* read a percent symbol */
if (nch!='%') break;
nch = _getch();
break;
case 'x':
case 'X': /* hexadecimal integer. */
base = 16; number_signed = 0;
goto number;
case 'o': /* octal integer */
base = 8; number_signed = 0;
goto number;
case 'u': /* unsigned decimal integer */
base = 10; number_signed = 0;
goto number;
case 'd': /* signed decimal integer */
base = 10; number_signed = 1;
goto number;
case 'i': /* generic integer */
base = 0; number_signed = 1;
number: {
/* read an integer */
int*val = suppress ? NULL : va_arg(ap, int*);
int cur = 0; int negative = 0; int seendigit=0;
/* skip initial whitespace */
while ((nch!=MSVCRT_EOF) && isspace(nch))
nch = _getch();
/* get sign */
if (number_signed && (nch == '-' || nch == '+')) {
negative = (nch=='-');
nch = _getch();
if (width>0) width--;
}
/* look for leading indication of base */
if (width!=0 && nch == '0') {
nch = _getch();
if (width>0) width--;
seendigit=1;
if (width!=0 && (nch=='x' || nch=='X')) {
if (base==0)
base=16;
if (base==16) {
nch = _getch();
if (width>0) width--;
seendigit=0;
}
} else if (base==0)
base = 8;
}
if (base==0)
base=10;
/* throw away leading zeros */
while (width!=0 && nch=='0') {
nch = _getch();
if (width>0) width--;
seendigit=1;
}
/* get first digit. Keep working copy negative, as the
* range of negative numbers in two's complement notation
* is one larger than the range of positive numbers. */
if (width!=0 && char2digit(nch, base)!=-1) {
cur = -char2digit(nch, base);
nch = _getch();
if (width>0) width--;
seendigit=1;
}
/* read until no more digits */
while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
cur = cur*base + char2digit(nch, base);
nch = _getch();
if (width>0) width--;
seendigit=1;
}
/* negate parsed number if non-negative */
if (!negative) cur=-cur;
/* okay, done! */
if (!seendigit) break; /* not a valid number */
st = 1;
if (!suppress) *val = cur;
}
break;
case 'e':
case 'E':
case 'f':
case 'g':
case 'G': { /* read a float */
float*val = suppress ? NULL : va_arg(ap, float*);
float cur = 0;
int negative = 0;
/* skip initial whitespace */
while ((nch!=MSVCRT_EOF) && isspace(nch))
nch = _getch();
/* get sign. */
if (nch == '-' || nch == '+') {
negative = (nch=='-');
if (width>0) width--;
if (width==0) break;
nch = _getch();
}
/* get first digit. */
if (!isdigit(nch)) break;
cur = (nch - '0') * (negative ? -1 : 1);
nch = _getch();
if (width>0) width--;
/* read until no more digits */
while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
cur = cur*10 + (nch - '0');
nch = _getch();
if (width>0) width--;
}
/* handle decimals */
if (width!=0 && nch == '.') {
float dec = 1;
nch = _getch();
if (width>0) width--;
while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
dec /= 10;
cur += dec * (nch - '0');
nch = _getch();
if (width>0) width--;
}
}
/* handle exponent */
if (width!=0 && (nch == 'e' || nch == 'E')) {
int exponent = 0, negexp = 0;
float expcnt;
nch = _getch();
if (width>0) width--;
/* possible sign on the exponent */
if (width!=0 && (nch=='+' || nch=='-')) {
negexp = (nch=='-');
nch = _getch();
if (width>0) width--;
}
/* exponent digits */
while (width!=0 && (nch!=MSVCRT_EOF) && isdigit(nch)) {
exponent *= 10;
exponent += (nch - '0');
nch = _getch();
if (width>0) width--;
}
/* update 'cur' with this exponent. */
expcnt = negexp ? .1 : 10;
while (exponent!=0) {
if (exponent&1)
cur*=expcnt;
exponent/=2;
expcnt=expcnt*expcnt;
}
}
st = 1;
if (!suppress) *val = cur;
}
break;
case 's': { /* read a word */
char*str = suppress ? NULL : va_arg(ap, char*);
char*sptr = str;
/* skip initial whitespace */
while ((nch!=MSVCRT_EOF) && isspace(nch))
nch = _getch();
/* read until whitespace */
while (width!=0 && (nch!=MSVCRT_EOF) && !isspace(nch)) {
if (!suppress) *sptr++ = nch;
st++;
nch = _getch();
if (width>0) width--;
}
/* terminate */
if (!suppress) *sptr = 0;
TRACE("read word: %s\n", str);
}
break;
default: FIXME("unhandled: %%%c\n", *format);
/* From spec: "if a percent sign is followed by a character
* that has no meaning as a format-control character, that
* character and the following characters are treated as
* an ordinary sequence of characters, that is, a sequence
* of characters that must match the input. For example,
* to specify that a percent-sign character is to be input,
* use %%."
* LEAVING AS-IS because we catch bugs better that way. */
}
if (st && !suppress) rd++;
else break;
}
/* a non-white-space character causes scanf to read, but not store,
* a matching non-white-space character. */
else {
/* check for character match */
if (nch == *format)
nch = _getch();
else break;
}
format++;
}
if (nch != MSVCRT_EOF)
_ungetch(nch);
UNLOCK_CONSOLE;
va_end(ap);
TRACE("returning %d\n", rd);
return rd;
}
/*********************************************************************
* _kbhit (MSVCRT.@)
*/
int _kbhit(void)
{
int retval = 0;
LOCK_CONSOLE;
if (__MSVCRT_console_buffer != MSVCRT_EOF)
retval = 1;
else
{
/* FIXME: There has to be a faster way than this in Win32.. */
INPUT_RECORD *ir = NULL;
DWORD count = 0, i;
GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
for(i = 0; i < count - 1; i++)
{
if (ir[i].EventType == KEY_EVENT &&
ir[i].Event.KeyEvent.bKeyDown &&
ir[i].Event.KeyEvent.uChar.AsciiChar)
{
retval = 1;
break;
}
}
if (ir)
MSVCRT_free(ir);
}
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _cprintf (MSVCRT.@)
*/
int _cprintf(const char* format, ...)
{
char buf[2048], *mem = buf;
int written, resize = sizeof(buf), retval;
va_list valist;
va_start( valist, format );
/* There are two conventions for snprintf failing:
* Return -1 if we truncated, or
* Return the number of bytes that would have been written
* The code below handles both cases
*/
while ((written = _snprintf( mem, resize, format, valist )) == -1 ||
written > resize)
{
resize = (written == -1 ? resize * 2 : written + 1);
if (mem != buf)
MSVCRT_free (mem);
if (!(mem = (char *)MSVCRT_malloc(resize)))
return MSVCRT_EOF;
va_start( valist, format );
}
va_end(valist);
LOCK_CONSOLE;
retval = _cputs( mem );
UNLOCK_CONSOLE;
if (mem != buf)
MSVCRT_free (mem);
return retval;
}
Reference in New Issue View Git Blame Copy Permalink