forked from Mirrors/wine-wine
425 lines
9.9 KiB
C
425 lines
9.9 KiB
C
/*
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* NTDLL string functions
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*
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* Copyright 2000 Alexandre Julliard
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* Copyright 2000 Jon Griffiths
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* Copyright 2003 Thomas Mertes
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <ctype.h>
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#include <string.h>
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#include "windef.h"
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#include "winternl.h"
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/*********************************************************************
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* _memicmp (NTDLL.@)
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*/
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INT __cdecl NTDLL__memicmp( LPCSTR s1, LPCSTR s2, DWORD len )
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{
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int ret = 0;
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while (len--)
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{
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if ((ret = tolower(*s1) - tolower(*s2))) break;
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s1++;
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s2++;
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}
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return ret;
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}
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/*********************************************************************
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* _strupr (NTDLL.@)
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*/
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LPSTR __cdecl _strupr( LPSTR str )
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{
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LPSTR ret = str;
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for ( ; *str; str++) *str = toupper(*str);
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return ret;
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}
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/*********************************************************************
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* _strlwr (NTDLL.@)
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*
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* convert a string in place to lowercase
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*/
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LPSTR __cdecl _strlwr( LPSTR str )
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{
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LPSTR ret = str;
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for ( ; *str; str++) *str = tolower(*str);
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return ret;
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}
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/*********************************************************************
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* _ultoa (NTDLL.@)
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*
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* Converts an unsigned long integer to a string.
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*
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* RETURNS
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* Always returns str.
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*
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* NOTES
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* Converts value to a '\0' terminated string which is copied to str.
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* The maximum length of the copied str is 33 bytes.
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* Does not check if radix is in the range of 2 to 36.
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* If str is NULL it crashes, as the native function does.
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*/
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char * __cdecl _ultoa(
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unsigned long value, /* [I] Value to be converted */
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char *str, /* [O] Destination for the converted value */
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int radix) /* [I] Number base for conversion */
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{
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char buffer[33];
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char *pos;
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int digit;
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pos = &buffer[32];
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*pos = '\0';
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do {
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digit = value % radix;
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value = value / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (value != 0L);
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memcpy(str, pos, &buffer[32] - pos + 1);
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return str;
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}
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/*********************************************************************
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* _ltoa (NTDLL.@)
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*
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* Converts a long integer to a string.
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*
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* RETURNS
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* Always returns str.
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*
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* NOTES
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* Converts value to a '\0' terminated string which is copied to str.
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* The maximum length of the copied str is 33 bytes. If radix
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* is 10 and value is negative, the value is converted with sign.
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* Does not check if radix is in the range of 2 to 36.
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* If str is NULL it crashes, as the native function does.
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*/
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char * __cdecl _ltoa(
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long value, /* [I] Value to be converted */
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char *str, /* [O] Destination for the converted value */
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int radix) /* [I] Number base for conversion */
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{
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unsigned long val;
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int negative;
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char buffer[33];
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char *pos;
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int digit;
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if (value < 0 && radix == 10) {
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negative = 1;
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val = -value;
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} else {
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negative = 0;
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val = value;
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} /* if */
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pos = &buffer[32];
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*pos = '\0';
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do {
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digit = val % radix;
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val = val / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (val != 0L);
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if (negative) {
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*--pos = '-';
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} /* if */
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memcpy(str, pos, &buffer[32] - pos + 1);
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return str;
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}
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/*********************************************************************
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* _itoa (NTDLL.@)
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*
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* Converts an integer to a string.
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*
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* RETURNS
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* Always returns str.
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*
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* NOTES
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* Converts value to a '\0' terminated string which is copied to str.
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* The maximum length of the copied str is 33 bytes. If radix
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* is 10 and value is negative, the value is converted with sign.
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* Does not check if radix is in the range of 2 to 36.
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* If str is NULL it crashes, as the native function does.
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*/
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char * __cdecl _itoa(
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int value, /* [I] Value to be converted */
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char *str, /* [O] Destination for the converted value */
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int radix) /* [I] Number base for conversion */
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{
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return _ltoa(value, str, radix);
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}
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/*********************************************************************
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* _ui64toa (NTDLL.@)
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*
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* Converts a large unsigned integer to a string.
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*
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* RETURNS
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* Always returns str.
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*
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* NOTES
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* Converts value to a '\0' terminated string which is copied to str.
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* The maximum length of the copied str is 65 bytes.
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* Does not check if radix is in the range of 2 to 36.
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* If str is NULL it crashes, as the native function does.
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*/
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char * __cdecl _ui64toa(
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ULONGLONG value, /* [I] Value to be converted */
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char *str, /* [O] Destination for the converted value */
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int radix) /* [I] Number base for conversion */
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{
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char buffer[65];
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char *pos;
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int digit;
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pos = &buffer[64];
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*pos = '\0';
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do {
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digit = value % radix;
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value = value / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (value != 0L);
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memcpy(str, pos, &buffer[64] - pos + 1);
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return str;
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}
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/*********************************************************************
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* _i64toa (NTDLL.@)
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*
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* Converts a large integer to a string.
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*
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* RETURNS
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* Always returns str.
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*
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* NOTES
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* Converts value to a '\0' terminated string which is copied to str.
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* The maximum length of the copied str is 65 bytes. If radix
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* is 10 and value is negative, the value is converted with sign.
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* Does not check if radix is in the range of 2 to 36.
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* If str is NULL it crashes, as the native function does.
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*
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* DIFFERENCES
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* - The native DLL converts negative values (for base 10) wrong:
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* -1 is converted to -18446744073709551615
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* -2 is converted to -18446744073709551614
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* -9223372036854775807 is converted to -9223372036854775809
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* -9223372036854775808 is converted to -9223372036854775808
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* The native msvcrt _i64toa function and our ntdll _i64toa function
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* do not have this bug.
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*/
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char * __cdecl _i64toa(
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LONGLONG value, /* [I] Value to be converted */
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char *str, /* [O] Destination for the converted value */
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int radix) /* [I] Number base for conversion */
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{
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ULONGLONG val;
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int negative;
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char buffer[65];
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char *pos;
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int digit;
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if (value < 0 && radix == 10) {
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negative = 1;
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val = -value;
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} else {
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negative = 0;
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val = value;
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} /* if */
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pos = &buffer[64];
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*pos = '\0';
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do {
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digit = val % radix;
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val = val / radix;
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if (digit < 10) {
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*--pos = '0' + digit;
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} else {
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*--pos = 'a' + digit - 10;
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} /* if */
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} while (val != 0L);
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if (negative) {
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*--pos = '-';
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} /* if */
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memcpy(str, pos, &buffer[64] - pos + 1);
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return str;
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}
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/*********************************************************************
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* _atoi64 (NTDLL.@)
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*
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* Converts a string to a large integer.
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*
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* PARAMS
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* str [I] Wstring to be converted
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*
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* RETURNS
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* On success it returns the integer value otherwise it returns 0.
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*
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* NOTES
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* Accepts: {whitespace} [+|-] {digits}
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* No check is made for value overflow, only the lower 64 bits are assigned.
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* If str is NULL it crashes, as the native function does.
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*/
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LONGLONG __cdecl _atoi64( char *str )
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{
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ULONGLONG RunningTotal = 0;
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char bMinus = 0;
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while (*str == ' ' || (*str >= '\011' && *str <= '\015')) {
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str++;
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} /* while */
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if (*str == '+') {
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str++;
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} else if (*str == '-') {
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bMinus = 1;
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str++;
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} /* if */
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while (*str >= '0' && *str <= '9') {
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RunningTotal = RunningTotal * 10 + *str - '0';
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str++;
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} /* while */
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return bMinus ? -RunningTotal : RunningTotal;
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}
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/*********************************************************************
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* _splitpath (NTDLL.@)
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*/
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void __cdecl _splitpath(const char* inpath, char * drv, char * dir,
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char* fname, char * ext )
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{
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/* Modified PD code from 'snippets' collection. */
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char ch, *ptr, *p;
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char pathbuff[MAX_PATH], *path=pathbuff;
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strcpy(pathbuff, inpath);
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/* convert slashes to backslashes for searching */
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for (ptr = (char*)path; *ptr; ++ptr)
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if ('/' == *ptr)
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*ptr = '\\';
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/* look for drive spec */
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if ('\0' != (ptr = strchr(path, ':')))
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{
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++ptr;
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if (drv)
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{
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strncpy(drv, path, ptr - path);
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drv[ptr - path] = '\0';
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}
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path = ptr;
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}
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else if (drv)
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*drv = '\0';
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/* find rightmost backslash or leftmost colon */
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if (NULL == (ptr = strrchr(path, '\\')))
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ptr = (strchr(path, ':'));
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if (!ptr)
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{
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ptr = (char *)path; /* no path */
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if (dir)
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*dir = '\0';
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}
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else
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{
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++ptr; /* skip the delimiter */
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if (dir)
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{
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ch = *ptr;
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*ptr = '\0';
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strcpy(dir, path);
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*ptr = ch;
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}
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}
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if (NULL == (p = strrchr(ptr, '.')))
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{
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if (fname)
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strcpy(fname, ptr);
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if (ext)
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*ext = '\0';
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}
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else
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{
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*p = '\0';
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if (fname)
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strcpy(fname, ptr);
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*p = '.';
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if (ext)
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strcpy(ext, p);
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}
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/* Fix pathological case - Win returns ':' as part of the
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* directory when no drive letter is given.
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*/
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if (drv && drv[0] == ':')
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{
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*drv = '\0';
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if (dir)
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{
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pathbuff[0] = ':';
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pathbuff[1] = '\0';
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strcat(pathbuff,dir);
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strcpy(dir,pathbuff);
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}
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}
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}
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