dlls/msvcrt/scanf.c

   1 /*
   2  * general implementation of scanf used by scanf, sscanf, fscanf,
   3  * _cscanf, wscanf, swscanf and fwscanf
   4  *
   5  * Copyright 1996,1998 Marcus Meissner
   6  * Copyright 1996 Jukka Iivonen
   7  * Copyright 1997,2000 Uwe Bonnes
   8  * Copyright 2000 Jon Griffiths
   9  * Copyright 2002 Daniel Gudbjartsson
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24  */
  25
  26 #include <stdarg.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "winternl.h"
  32 #include "msvcrt.h"
  33 #include "msvcrt/conio.h"
  34 #include "msvcrt/io.h"
  35 #include "msvcrt/stdio.h"
  36 #include "msvcrt/wctype.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  40
  41 extern MSVCRT_FILE MSVCRT__iob[];
  42
  43 /* helper function for *scanf.  Returns the value of character c in the
  44  * given base, or -1 if the given character is not a digit of the base.
  45  */
  46 static int char2digit(char c, int base) {
  47     if ((c>='0') && (c<='9') && (c<='0'+base-1)) return (c-'0');
  48     if (base<=10) return -1;
  49     if ((c>='A') && (c<='Z') && (c<='A'+base-11)) return (c-'A'+10);
  50     if ((c>='a') && (c<='z') && (c<='a'+base-11)) return (c-'a'+10);
  51     return -1;
  52 }
  53
  54 /* helper function for *wscanf.  Returns the value of character c in the
  55  * given base, or -1 if the given character is not a digit of the base.
  56  */
  57 static int wchar2digit(MSVCRT_wchar_t c, int base) {
  58     if ((c>=L'0') && (c<=L'9') && (c<=L'0'+base-1)) return (c-L'0');
  59     if (base<=10) return -1;
  60     if ((c>=L'A') && (c<=L'Z') && (c<=L'A'+base-11)) return (c-L'A'+10);
  61     if ((c>=L'a') && (c<=L'z') && (c<=L'a'+base-11)) return (c-L'a'+10);
  62     return -1;
  63 }
  64
  65 /* vfscanf */
  66 #undef WIDE_SCANF
  67 #undef CONSOLE
  68 #undef STRING
  69 #include "scanf.h"
  70
  71 /* vfwscanf */
  72 #define WIDE_SCANF 1
  73 #undef CONSOLE
  74 #undef STRING
  75 #include "scanf.h"
  76
  77 /* vsscanf */
  78 #undef WIDE_SCANF
  79 #undef CONSOLE
  80 #define STRING 1
  81 #include "scanf.h"
  82
  83 /* vswscanf */
  84 #define WIDE_SCANF 1
  85 #undef CONSOLE
  86 #define STRING 1
  87 #include "scanf.h"
  88
  89 /* vcscanf */
  90 #undef WIDE_SCANF
  91 #define CONSOLE 1
  92 #undef STRING
  93 #include "scanf.h"
  94
  95
  96 /*********************************************************************
  97  *              fscanf (MSVCRT.@)
  98  */
  99 int MSVCRT_fscanf(MSVCRT_FILE *file, const char *format, ...)
 100 {
 101     va_list valist;
 102     int res;
 103
 104     va_start(valist, format);
 105     res = MSVCRT_vfscanf(file, format, valist);
 106     va_end(valist);
 107     return res;
 108 }
 109
 110 /*********************************************************************
 111  *              scanf (MSVCRT.@)
 112  */
 113 int MSVCRT_scanf(const char *format, ...)
 114 {
 115     va_list valist;
 116     int res;
 117
 118     va_start(valist, format);
 119     res = MSVCRT_vfscanf(MSVCRT_stdin, format, valist);
 120     va_end(valist);
 121     return res;
 122 }
 123
 124 /*********************************************************************
 125  *              fwscanf (MSVCRT.@)
 126  */
 127 int MSVCRT_fwscanf(MSVCRT_FILE *file, const MSVCRT_wchar_t *format, ...)
 128 {
 129     va_list valist;
 130     int res;
 131
 132     va_start(valist, format);
 133     res = MSVCRT_vfwscanf(file, format, valist);
 134     va_end(valist);
 135     return res;
 136 }
 137
 138
 139 /*********************************************************************
 140  *              wscanf (MSVCRT.@)
 141  */
 142 int MSVCRT_wscanf(const MSVCRT_wchar_t *format, ...)
 143 {
 144     va_list valist;
 145     int res;
 146
 147     va_start(valist, format);
 148     res = MSVCRT_vfwscanf(MSVCRT_stdin, format, valist);
 149     va_end(valist);
 150     return res;
 151 }
 152
 153
 154 /*********************************************************************
 155  *              sscanf (MSVCRT.@)
 156  */
 157 int MSVCRT_sscanf(const char *str, const char *format, ...)
 158 {
 159     va_list valist;
 160     int res;
 161
 162     va_start(valist, format);
 163     res = MSVCRT_vsscanf(str, format, valist);
 164     va_end(valist);
 165     return res;
 166 }
 167
 168
 169 /*********************************************************************
 170  *              swscanf (MSVCRT.@)
 171  */
 172 int MSVCRT_swscanf(const MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format, ...)
 173 {
 174     va_list valist;
 175     int res;
 176
 177     va_start(valist, format);
 178     res = MSVCRT_vswscanf(str, format, valist);
 179     va_end(valist);
 180     return res;
 181 }
 182
 183
 184 /*********************************************************************
 185  *              _cscanf (MSVCRT.@)
 186  */
 187 int _cscanf(const char *format, ...)
 188 {
 189     va_list valist;
 190     int res;
 191
 192     va_start(valist, format);
 193     res = MSVCRT_vcscanf(format, valist);
 194     va_end(valist);
 195     return res;
 196 }