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345 lines
8.4 KiB
C
345 lines
8.4 KiB
C
/*
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* String functions
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*
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* Copyright 1993 Yngvi Sigurjonsson
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* Copyright 1996 Alexandre Julliard
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*/
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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 "winbase.h"
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#include "wine/winbase16.h"
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#include "wine/exception.h"
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#include "wine/unicode.h"
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#include "winerror.h"
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#include "winnls.h"
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#include "ldt.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(string);
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/* filter for page-fault exceptions */
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static WINE_EXCEPTION_FILTER(page_fault)
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{
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if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
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return EXCEPTION_EXECUTE_HANDLER;
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return EXCEPTION_CONTINUE_SEARCH;
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}
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/***********************************************************************
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* hmemcpy16 (KERNEL.348)
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*/
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void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
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{
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memcpy( dst, src, count );
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}
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/***********************************************************************
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* lstrcat16 (KERNEL.89)
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*/
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SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
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{
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/* Windows does not check for NULL pointers here, so we don't either */
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strcat( (LPSTR)PTR_SEG_TO_LIN(dst), src );
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return dst;
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}
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/***********************************************************************
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* lstrcatA (KERNEL32.599)
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*/
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LPSTR WINAPI lstrcatA( LPSTR dst, LPCSTR src )
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{
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__TRY
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{
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strcat( dst, src );
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}
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__EXCEPT(page_fault)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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__ENDTRY
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return dst;
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}
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/***********************************************************************
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* lstrcatW (KERNEL32.600)
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*/
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LPWSTR WINAPI lstrcatW( LPWSTR dst, LPCWSTR src )
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{
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__TRY
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{
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strcatW( dst, src );
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}
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__EXCEPT(page_fault)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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__ENDTRY
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return dst;
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}
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/***********************************************************************
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* lstrcatn16 (KERNEL.352)
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*/
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SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
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{
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LPSTR p = (LPSTR)PTR_SEG_TO_LIN(dst);
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while (*p) p++;
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if ((n -= (p - (LPSTR)PTR_SEG_TO_LIN(dst))) <= 0) return dst;
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lstrcpynA( p, src, n );
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return dst;
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}
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/***********************************************************************
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* lstrcmpA (KERNEL.602)
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*/
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INT WINAPI lstrcmpA( LPCSTR str1, LPCSTR str2 )
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{
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return CompareStringA(LOCALE_SYSTEM_DEFAULT,0,str1,-1,str2,-1) - 2 ;
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}
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/***********************************************************************
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* lstrcmpW (KERNEL.603)
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* FIXME : should call CompareStringW, when it is implemented.
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* This implementation is not "word sort", as it should.
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*/
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INT WINAPI lstrcmpW( LPCWSTR str1, LPCWSTR str2 )
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{
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TRACE("%s and %s\n",
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debugstr_w (str1), debugstr_w (str2));
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if (!str1 || !str2) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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while (*str1 && (*str1 == *str2)) { str1++; str2++; }
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return (INT)(*str1 - *str2);
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}
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/***********************************************************************
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* lstrcmpiA (KERNEL32.605)
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*/
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INT WINAPI lstrcmpiA( LPCSTR str1, LPCSTR str2 )
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{ TRACE("strcmpi %s and %s\n",
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debugstr_a (str1), debugstr_a (str2));
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return CompareStringA(LOCALE_SYSTEM_DEFAULT,NORM_IGNORECASE,str1,-1,str2,-1)-2;
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}
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/***********************************************************************
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* lstrcmpiW (KERNEL32.606)
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*/
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INT WINAPI lstrcmpiW( LPCWSTR str1, LPCWSTR str2 )
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{
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if (!str1 || !str2) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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return strcmpiW( str1, str2 );
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}
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/***********************************************************************
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* lstrcpy16 (KERNEL.88)
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*/
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SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
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{
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if (!lstrcpyA( PTR_SEG_TO_LIN(dst), src )) dst = 0;
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return dst;
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}
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/***********************************************************************
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* lstrcpyA (KERNEL32.608)
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*/
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LPSTR WINAPI lstrcpyA( LPSTR dst, LPCSTR src )
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{
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__TRY
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{
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/* this is how Windows does it */
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memmove( dst, src, strlen(src)+1 );
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}
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__EXCEPT(page_fault)
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{
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ERR("(%p, %p): page fault occurred ! Caused by bug ?\n", dst, src);
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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__ENDTRY
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return dst;
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}
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/***********************************************************************
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* lstrcpyW (KERNEL32.609)
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*/
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LPWSTR WINAPI lstrcpyW( LPWSTR dst, LPCWSTR src )
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{
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__TRY
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{
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strcpyW( dst, src );
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}
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__EXCEPT(page_fault)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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__ENDTRY
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return dst;
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}
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/***********************************************************************
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* lstrcpyn16 (KERNEL.353)
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*/
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SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
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{
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lstrcpynA( (LPSTR)PTR_SEG_TO_LIN(dst), src, n );
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return dst;
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}
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/***********************************************************************
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* lstrcpynA (KERNEL32.611)
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* Note: this function differs from the UNIX strncpy, it _always_ writes
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* a terminating \0
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*/
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LPSTR WINAPI lstrcpynA( LPSTR dst, LPCSTR src, INT n )
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{
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LPSTR p = dst;
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TRACE("(%p, %s, %i)\n", dst, debugstr_an(src,n), n);
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/* In real windows the whole function is protected by an exception handler
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* that returns ERROR_INVALID_PARAMETER on faulty parameters
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* We currently just check for NULL.
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*/
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if (!dst || !src) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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while ((n-- > 1) && *src) *p++ = *src++;
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if (n >= 0) *p = 0;
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return dst;
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}
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/***********************************************************************
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* lstrcpynW (KERNEL32.612)
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* Note: this function differs from the UNIX strncpy, it _always_ writes
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* a terminating \0
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*/
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LPWSTR WINAPI lstrcpynW( LPWSTR dst, LPCWSTR src, INT n )
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{
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LPWSTR p = dst;
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TRACE("(%p, %s, %i)\n", dst, debugstr_wn(src,n), n);
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/* In real windows the whole function is protected by an exception handler
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* that returns ERROR_INVALID_PARAMETER on faulty parameters
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* We currently just check for NULL.
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*/
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if (!dst || !src) {
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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while ((n-- > 1) && *src) *p++ = *src++;
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if (n >= 0) *p = 0;
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return dst;
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}
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/***********************************************************************
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* lstrlen16 (KERNEL.90)
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*/
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INT16 WINAPI lstrlen16( LPCSTR str )
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{
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return (INT16)lstrlenA( str );
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}
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/***********************************************************************
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* lstrlenA (KERNEL32.614)
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*/
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INT WINAPI lstrlenA( LPCSTR str )
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{
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INT ret;
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__TRY
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{
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ret = strlen(str);
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}
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__EXCEPT(page_fault)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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__ENDTRY
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return ret;
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}
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/***********************************************************************
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* lstrlenW (KERNEL32.615)
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*/
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INT WINAPI lstrlenW( LPCWSTR str )
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{
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INT ret;
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__TRY
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{
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ret = strlenW(str);
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}
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__EXCEPT(page_fault)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return 0;
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}
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__ENDTRY
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return ret;
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}
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/***********************************************************************
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* lstrcpynAtoW (Not a Windows API)
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* Note: this function differs from the UNIX strncpy, it _always_ writes
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* a terminating \0
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*/
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LPWSTR WINAPI lstrcpynAtoW( LPWSTR dst, LPCSTR src, INT n )
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{
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if (n > 0 && !MultiByteToWideChar( CP_ACP, 0, src, -1, dst, n )) dst[n-1] = 0;
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return dst;
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}
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/***********************************************************************
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* lstrcpynWtoA (Not a Windows API)
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* Note: this function differs from the UNIX strncpy, it _always_ writes
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* a terminating \0
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*
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* The terminating zero should be written at the end of the string, not
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* the end of the buffer, as some programs specify the wrong size for
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* the buffer (eg. winnt's sol.exe)
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*/
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LPSTR WINAPI lstrcpynWtoA( LPSTR dst, LPCWSTR src, INT n )
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{
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if (n > 0 && !WideCharToMultiByte( CP_ACP, 0, src, -1, dst, n, NULL, NULL )) dst[n-1] = 0;
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return dst;
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}
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/***********************************************************************
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* UnicodeToAnsi (KERNEL.434)
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*/
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INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
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{
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if ( codepage == -1 )
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codepage = CP_ACP;
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return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
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}
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