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"
30 #define WINE_NO_INLINE_STRING
34 #include "wine/winbase16.h"
35 #include "wine/unicode.h"
36 #include "wine/exception.h"
39 static INT (WINAPI *pLoadStringA)(HINSTANCE, UINT, LPSTR, INT);
40 static INT (WINAPI *pwvsprintfA)(LPSTR, LPCSTR, va_list);
42 /* filter for page-fault exceptions */
43 static WINE_EXCEPTION_FILTER(page_fault)
45 if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
46 return EXCEPTION_EXECUTE_HANDLER;
47 return EXCEPTION_CONTINUE_SEARCH;
51 /***********************************************************************
52 * Helper for k32 family functions
54 static void *user32_proc_address(const char *proc_name)
56 static HMODULE hUser32;
58 if(!hUser32) hUser32 = LoadLibraryA("user32.dll");
59 return GetProcAddress(hUser32, proc_name);
63 /***********************************************************************
64 * k32CharToOemBuffA (KERNEL32.11)
66 BOOL WINAPI k32CharToOemBuffA(LPCSTR s, LPSTR d, DWORD len)
70 if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
72 MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
73 WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
74 HeapFree( GetProcessHeap(), 0, bufW );
80 /***********************************************************************
81 * k32CharToOemA (KERNEL32.10)
83 BOOL WINAPI k32CharToOemA(LPCSTR s, LPSTR d)
85 if (!s || !d) return TRUE;
86 return k32CharToOemBuffA( s, d, strlen(s) + 1 );
90 /***********************************************************************
91 * k32OemToCharBuffA (KERNEL32.13)
93 BOOL WINAPI k32OemToCharBuffA(LPCSTR s, LPSTR d, DWORD len)
97 if ((bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
99 MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
100 WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
101 HeapFree( GetProcessHeap(), 0, bufW );
107 /***********************************************************************
108 * k32OemToCharA (KERNEL32.12)
110 BOOL WINAPI k32OemToCharA(LPCSTR s, LPSTR d)
112 return k32OemToCharBuffA( s, d, strlen(s) + 1 );
116 /**********************************************************************
117 * k32LoadStringA (KERNEL32.14)
119 INT WINAPI k32LoadStringA(HINSTANCE instance, UINT resource_id,
120 LPSTR buffer, INT buflen)
122 if(!pLoadStringA) pLoadStringA = user32_proc_address("LoadStringA");
123 return pLoadStringA(instance, resource_id, buffer, buflen);
127 /***********************************************************************
128 * k32wvsprintfA (KERNEL32.16)
130 INT WINAPI k32wvsprintfA(LPSTR buffer, LPCSTR spec, va_list args)
132 if(!pwvsprintfA) pwvsprintfA = user32_proc_address("wvsprintfA");
133 return (*pwvsprintfA)(buffer, spec, args);
137 /***********************************************************************
138 * k32wsprintfA (KERNEL32.15)
140 INT WINAPIV k32wsprintfA(LPSTR buffer, LPCSTR spec, ...)
145 va_start(args, spec);
146 res = k32wvsprintfA(buffer, spec, args);
152 /***********************************************************************
153 * hmemcpy (KERNEL.348)
155 void WINAPI hmemcpy16( LPVOID dst, LPCVOID src, LONG count )
157 memcpy( dst, src, count );
161 /***********************************************************************
162 * lstrcat (KERNEL.89)
164 SEGPTR WINAPI lstrcat16( SEGPTR dst, LPCSTR src )
166 /* Windows does not check for NULL pointers here, so we don't either */
167 strcat( MapSL(dst), src );
172 /***********************************************************************
173 * lstrcatA (KERNEL32.@)
174 * lstrcat (KERNEL32.@)
176 LPSTR WINAPI lstrcatA( LPSTR dst, LPCSTR src )
184 SetLastError( ERROR_INVALID_PARAMETER );
192 /***********************************************************************
193 * lstrcatW (KERNEL32.@)
195 LPWSTR WINAPI lstrcatW( LPWSTR dst, LPCWSTR src )
203 SetLastError( ERROR_INVALID_PARAMETER );
211 /***********************************************************************
212 * lstrcatn (KERNEL.352)
214 SEGPTR WINAPI lstrcatn16( SEGPTR dst, LPCSTR src, INT16 n )
216 LPSTR p = MapSL(dst);
220 if ((n -= (p - start)) <= 0) return dst;
221 lstrcpynA( p, src, n );
226 /***********************************************************************
227 * lstrcpy (KERNEL.88)
229 SEGPTR WINAPI lstrcpy16( SEGPTR dst, LPCSTR src )
231 if (!lstrcpyA( MapSL(dst), src )) dst = 0;
236 /***********************************************************************
237 * lstrcpyA (KERNEL32.@)
238 * lstrcpy (KERNEL32.@)
240 LPSTR WINAPI lstrcpyA( LPSTR dst, LPCSTR src )
244 /* this is how Windows does it */
245 memmove( dst, src, strlen(src)+1 );
249 SetLastError( ERROR_INVALID_PARAMETER );
257 /***********************************************************************
258 * lstrcpyW (KERNEL32.@)
260 LPWSTR WINAPI lstrcpyW( LPWSTR dst, LPCWSTR src )
268 SetLastError( ERROR_INVALID_PARAMETER );
276 /***********************************************************************
277 * lstrcpyn (KERNEL.353)
279 SEGPTR WINAPI lstrcpyn16( SEGPTR dst, LPCSTR src, INT16 n )
281 lstrcpynA( MapSL(dst), src, n );
286 /***********************************************************************
287 * lstrcpynA (KERNEL32.@)
288 * lstrcpyn (KERNEL32.@)
290 * Note: this function differs from the UNIX strncpy, it _always_ writes
293 * Note: n is an INT but Windows treats it as unsigned, and will happily
294 * copy a gazillion chars if n is negative.
296 LPSTR WINAPI lstrcpynA( LPSTR dst, LPCSTR src, INT n )
304 while ((count > 1) && *s)
313 SetLastError( ERROR_INVALID_PARAMETER );
321 /***********************************************************************
322 * lstrcpynW (KERNEL32.@)
324 * Note: this function differs from the UNIX strncpy, it _always_ writes
327 * Note: n is an INT but Windows treats it as unsigned, and will happily
328 * copy a gazillion chars if n is negative.
330 LPWSTR WINAPI lstrcpynW( LPWSTR dst, LPCWSTR src, INT n )
338 while ((count > 1) && *s)
347 SetLastError( ERROR_INVALID_PARAMETER );
355 /***********************************************************************
356 * lstrlen (KERNEL.90)
358 INT16 WINAPI lstrlen16( LPCSTR str )
360 return (INT16)lstrlenA( str );
364 /***********************************************************************
365 * lstrlenA (KERNEL32.@)
366 * lstrlen (KERNEL32.@)
368 INT WINAPI lstrlenA( LPCSTR str )
377 SetLastError( ERROR_INVALID_PARAMETER );
385 /***********************************************************************
386 * lstrlenW (KERNEL32.@)
388 INT WINAPI lstrlenW( LPCWSTR str )
397 SetLastError( ERROR_INVALID_PARAMETER );
405 /***********************************************************************
406 * UnicodeToAnsi (KERNEL.434)
408 INT16 WINAPI UnicodeToAnsi16( LPCWSTR src, LPSTR dst, INT16 codepage )
410 if ( codepage == -1 ) codepage = CP_ACP;
411 return WideCharToMultiByte( codepage, 0, src, -1, dst, 0x7fffffff, NULL, NULL );
415 /***************************************************************************
417 * Win 2.x string functions now moved to USER
419 * We rather want to implement them here instead of doing Callouts
422 /***********************************************************************
423 * Reserved1 (KERNEL.77)
425 SEGPTR WINAPI KERNEL_AnsiNext16(SEGPTR current)
427 return (*(char *)MapSL(current)) ? current + 1 : current;
430 /***********************************************************************
431 * Reserved2(KERNEL.78)
433 SEGPTR WINAPI KERNEL_AnsiPrev16( SEGPTR start, SEGPTR current )
435 return (current==start)?start:current-1;
438 /***********************************************************************
439 * Reserved3 (KERNEL.79)
441 SEGPTR WINAPI KERNEL_AnsiUpper16( SEGPTR strOrChar )
443 /* uppercase only one char if strOrChar < 0x10000 */
444 if (HIWORD(strOrChar))
446 char *s = MapSL(strOrChar);
454 else return toupper((char)strOrChar);
457 /***********************************************************************
458 * Reserved4 (KERNEL.80)
460 SEGPTR WINAPI KERNEL_AnsiLower16( SEGPTR strOrChar )
462 /* lowercase only one char if strOrChar < 0x10000 */
463 if (HIWORD(strOrChar))
465 char *s = MapSL(strOrChar);
473 else return tolower((char)strOrChar);
477 /***********************************************************************
478 * Reserved5 (KERNEL.87)
480 INT16 WINAPI KERNEL_lstrcmp16( LPCSTR str1, LPCSTR str2 )
482 return (INT16)strcmp( str1, str2 );