2 * Kernel string functions
4 * Copyright 1993 Yngvi Sigurjonsson
5 * Copyright 1996 Alexandre Julliard
6 * Copyright 2001 Dmitry Timoshkov for CodeWeavers
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include "wine/port.h"
33 #include "wine/winbase16.h"
34 #include "wine/unicode.h"
35 #include "wine/exception.h"
38 static INT (WINAPI *pLoadStringA)(HINSTANCE, UINT, LPSTR, INT);
39 static INT (WINAPI *pwvsprintfA)(LPSTR, LPCSTR, va_list);
41 /* filter for page-fault exceptions */
42 static WINE_EXCEPTION_FILTER(page_fault)
44 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
45 return EXCEPTION_EXECUTE_HANDLER;
46 return EXCEPTION_CONTINUE_SEARCH;
50 /***********************************************************************
51 * Helper for k32 family functions
53 static void *user32_proc_address(const char *proc_name)
55 static HMODULE hUser32;
57 if(!hUser32) hUser32 = LoadLibraryA("user32.dll");
58 return GetProcAddress(hUser32, proc_name);
62 /***********************************************************************
63 * k32CharToOemBuffA (KERNEL32.11)
65 BOOL WINAPI k32CharToOemBuffA(LPCSTR s, LPSTR d, DWORD len)
69 if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
71 MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
72 WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
73 HeapFree( GetProcessHeap(), 0, bufW );
79 /***********************************************************************
80 * k32CharToOemA (KERNEL32.10)
82 BOOL WINAPI k32CharToOemA(LPCSTR s, LPSTR d)
84 if (!s || !d) return TRUE;
85 return k32CharToOemBuffA( s, d, strlen(s) + 1 );
89 /***********************************************************************
90 * k32OemToCharBuffA (KERNEL32.13)
92 BOOL WINAPI k32OemToCharBuffA(LPCSTR s, LPSTR d, DWORD len)
96 if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
98 MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
99 WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
100 HeapFree( GetProcessHeap(), 0, bufW );
106 /***********************************************************************
107 * k32OemToCharA (KERNEL32.12)
109 BOOL WINAPI k32OemToCharA(LPCSTR s, LPSTR d)
111 return k32OemToCharBuffA( s, d, strlen(s) + 1 );
115 /**********************************************************************
116 * k32LoadStringA (KERNEL32.14)
118 INT WINAPI k32LoadStringA(HINSTANCE instance, UINT resource_id,
119 LPSTR buffer, INT buflen)
121 if(!pLoadStringA) pLoadStringA = user32_proc_address("LoadStringA");
122 return pLoadStringA(instance, resource_id, buffer, buflen);
126 /***********************************************************************
127 * k32wvsprintfA (KERNEL32.16)
129 INT WINAPI k32wvsprintfA(LPSTR buffer, LPCSTR spec, va_list args)
131 if(!pwvsprintfA) pwvsprintfA = user32_proc_address("wvsprintfA");
132 return (*pwvsprintfA)(buffer, spec, args);
136 /***********************************************************************
137 * k32wsprintfA (KERNEL32.15)
139 INT WINAPIV k32wsprintfA(LPSTR buffer, LPCSTR spec, ...)
144 va_start(args, spec);
145 res = k32wvsprintfA(buffer, spec, args);
151 /***********************************************************************
152 * hmemcpy (KERNEL.348)
154 void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
156 memcpy( dst, src, count );
160 /***********************************************************************
161 * lstrcat (KERNEL.89)
163 SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
165 /* Windows does not check for NULL pointers here, so we don't either */
166 strcat( MapSL(dst), src );
171 /***********************************************************************
172 * lstrcat (KERNEL32.@)
173 * lstrcatA (KERNEL32.@)
175 LPSTR WINAPI lstrcatA( LPSTR dst, LPCSTR src )
183 SetLastError( ERROR_INVALID_PARAMETER );
191 /***********************************************************************
192 * lstrcatW (KERNEL32.@)
194 LPWSTR WINAPI lstrcatW( LPWSTR dst, LPCWSTR src )
202 SetLastError( ERROR_INVALID_PARAMETER );
210 /***********************************************************************
211 * lstrcatn (KERNEL.352)
213 SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
215 LPSTR p = MapSL(dst);
219 if ((n -= (p - start)) <= 0) return dst;
220 lstrcpynA( p, src, n );
225 /***********************************************************************
226 * lstrcpy (KERNEL.88)
228 SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
230 if (!lstrcpyA( MapSL(dst), src )) dst = 0;
235 /***********************************************************************
236 * lstrcpy (KERNEL32.@)
237 * lstrcpyA (KERNEL32.@)
239 LPSTR WINAPI lstrcpyA( LPSTR dst, LPCSTR src )
243 /* this is how Windows does it */
244 memmove( dst, src, strlen(src)+1 );
248 SetLastError( ERROR_INVALID_PARAMETER );
256 /***********************************************************************
257 * lstrcpyW (KERNEL32.@)
259 LPWSTR WINAPI lstrcpyW( LPWSTR dst, LPCWSTR src )
267 SetLastError( ERROR_INVALID_PARAMETER );
275 /***********************************************************************
276 * lstrcpyn (KERNEL.353)
278 SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
280 lstrcpynA( MapSL(dst), src, n );
285 /***********************************************************************
286 * lstrcpyn (KERNEL32.@)
287 * lstrcpynA (KERNEL32.@)
289 * Note: this function differs from the UNIX strncpy, it _always_ writes
292 * Note: n is an INT but Windows treats it as unsigned, and will happily
293 * copy a gazillion chars if n is negative.
295 LPSTR WINAPI lstrcpynA( LPSTR dst, LPCSTR src, INT n )
303 while ((count > 1) && *s)
312 SetLastError( ERROR_INVALID_PARAMETER );
320 /***********************************************************************
321 * lstrcpynW (KERNEL32.@)
323 * Note: this function differs from the UNIX strncpy, it _always_ writes
326 * Note: n is an INT but Windows treats it as unsigned, and will happily
327 * copy a gazillion chars if n is negative.
329 LPWSTR WINAPI lstrcpynW( LPWSTR dst, LPCWSTR src, INT n )
337 while ((count > 1) && *s)
346 SetLastError( ERROR_INVALID_PARAMETER );
354 /***********************************************************************
355 * lstrlen (KERNEL.90)
357 INT16 WINAPI lstrlen16( LPCSTR str )
359 return (INT16)lstrlenA( str );
363 /***********************************************************************
364 * lstrlen (KERNEL32.@)
365 * lstrlenA (KERNEL32.@)
367 INT WINAPI lstrlenA( LPCSTR str )
376 SetLastError( ERROR_INVALID_PARAMETER );
384 /***********************************************************************
385 * lstrlenW (KERNEL32.@)
387 INT WINAPI lstrlenW( LPCWSTR str )
396 SetLastError( ERROR_INVALID_PARAMETER );
404 /***********************************************************************
405 * UnicodeToAnsi (KERNEL.434)
407 INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
409 if ( codepage == -1 ) codepage = CP_ACP;
410 return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
414 /***************************************************************************
416 * Win 2.x string functions now moved to USER
418 * We rather want to implement them here instead of doing Callouts
421 /***********************************************************************
422 * Reserved1 (KERNEL.77)
424 SEGPTR WINAPI KERNEL_AnsiNext16(SEGPTR current)
426 return (*(char *)MapSL(current)) ? current + 1 : current;
429 /***********************************************************************
430 * Reserved2(KERNEL.78)
432 SEGPTR WINAPI KERNEL_AnsiPrev16( SEGPTR start, SEGPTR current )
434 return (current==start)?start:current-1;
437 /***********************************************************************
438 * Reserved3 (KERNEL.79)
440 SEGPTR WINAPI KERNEL_AnsiUpper16( SEGPTR strOrChar )
442 /* uppercase only one char if strOrChar < 0x10000 */
443 if (HIWORD(strOrChar))
445 char *s = MapSL(strOrChar);
453 else return toupper((char)strOrChar);
456 /***********************************************************************
457 * Reserved4 (KERNEL.80)
459 SEGPTR WINAPI KERNEL_AnsiLower16( SEGPTR strOrChar )
461 /* lowercase only one char if strOrChar < 0x10000 */
462 if (HIWORD(strOrChar))
464 char *s = MapSL(strOrChar);
472 else return tolower((char)strOrChar);
476 /***********************************************************************
477 * Reserved5 (KERNEL.87)
479 INT16 WINAPI KERNEL_lstrcmp16( LPCSTR str1, LPCSTR str2 )
481 return (INT16)strcmp( str1, str2 );