1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 25 #include "system.h" 26 27 #include <osl/module.h> 28 #include <osl/diagnose.h> 29 #include <osl/file.h> 30 #include <osl/thread.h> 31 32 #include <stdlib.h> 33 #include <dlfcn.h> 34 35 int UnicodeToText(char *, size_t, const sal_Unicode *, sal_Int32); 36 37 // static data for holding SAL dll module and full path 38 static HMODULE hModSal; 39 static char szSalDir[ _MAX_PATH]; 40 static char szSalDrive[ _MAX_PATH]; 41 42 /*****************************************************************************/ 43 /* osl_loadModule */ 44 /*****************************************************************************/ 45 46 ULONG APIENTRY _DosLoadModule (PSZ pszObject, ULONG uObjectLen, PCSZ pszModule, 47 PHMODULE phmod) 48 { 49 APIRET rc; 50 rc = DosLoadModule( pszObject, uObjectLen, pszModule, phmod); 51 // YD 22/05/06 issue again if first call fails (why?) 52 if (rc == ERROR_INVALID_PARAMETER) 53 rc = DosLoadModule( pszObject, uObjectLen, pszModule, phmod); 54 return rc; 55 } 56 57 oslModule SAL_CALL osl_loadAsciiModule( const sal_Char* pModuleName, sal_Int32 nRtldMode ) 58 { 59 rtl_uString* pUniName = NULL; 60 rtl_uString_newFromAscii( &pUniName, pModuleName ); 61 oslModule aModule = osl_loadModule( pUniName, nRtldMode ); 62 rtl_uString_release( pUniName ); 63 return aModule; 64 } 65 66 oslModule SAL_CALL osl_loadModule(rtl_uString *ustrModuleName, sal_Int32 nRtldMode) 67 { 68 HMODULE hModule; 69 BYTE szErrorMessage[256]; 70 APIRET rc; 71 oslModule pModule=0; 72 rtl_uString* ustrTmp = NULL; 73 74 OSL_ENSURE(ustrModuleName,"osl_loadModule : string is not valid"); 75 76 /* ensure ustrTmp hold valid string */ 77 if( osl_File_E_None != osl_getSystemPathFromFileURL( ustrModuleName, &ustrTmp ) ) 78 rtl_uString_assign( &ustrTmp, ustrModuleName ); 79 80 if( ustrTmp ) 81 { 82 char buffer[PATH_MAX]; 83 84 if( UnicodeToText( buffer, PATH_MAX, ustrTmp->buffer, ustrTmp->length ) ) 85 { 86 char drive[_MAX_DRIVE], dir[_MAX_DIR]; 87 char fname[_MAX_FNAME], ext[_MAX_EXT]; 88 char* dot; 89 // 21/02/2006 YD dll names must be 8.3: since .uno.dll files 90 // have hardcoded names, I'm truncating names here and also in 91 // the build system 92 _splitpath (buffer, drive, dir, fname, ext); 93 if (strlen(fname)>8) 94 fname[8] = 0; // truncate to 8.3 95 dot = strchr( fname, '.'); 96 if (dot) 97 *dot = '\0'; // truncate on dot 98 // if drive is not specified, remove starting \ from dir name 99 // so dll is loaded from LIBPATH 100 if (drive[0] == 0 && dir[0] == '\\' && dir[1] == '\\') { 101 while( dir[0] == '\\') 102 strcpy( dir, dir+1); 103 } 104 _makepath( buffer, drive, dir, fname, ext); 105 106 #if OSL_DEBUG_LEVEL>0 107 debug_printf("osl_loadModule module %s", buffer); 108 #endif 109 //rc = _DosLoadModule( szErrorMessage, sizeof( szErrorMessage), (PCSZ)buffer, &hModule); 110 //if (rc == NO_ERROR ) 111 hModule = dlopen( buffer, RTLD_LOCAL); 112 if (hModule != NULL ) 113 pModule = (oslModule)hModule; 114 else 115 { 116 if (rc == NO_ERROR ) 117 pModule = (oslModule)hModule; 118 else 119 { 120 sal_Char szError[ PATH_MAX*2 ]; 121 sprintf( szError, "Module: %s; rc: %d;\nReason: %s;\n" 122 "Please contact technical support and report above informations.\n\n", 123 buffer, rc, szErrorMessage ); 124 #if OSL_DEBUG_LEVEL>0 125 fprintf( stderr, szError); 126 #endif 127 //OSL_TRACE(szError); 128 #ifndef OSL_DEBUG_LEVEL 129 WinMessageBox(HWND_DESKTOP,HWND_DESKTOP, 130 szError, "Critical error: DosLoadModule failed", 131 0, MB_ERROR | MB_OK | MB_MOVEABLE); 132 #endif 133 } 134 } 135 } 136 } 137 138 rtl_uString_release( ustrTmp ); 139 140 return pModule; 141 } 142 143 /*****************************************************************************/ 144 /* osl_getModuleHandle */ 145 /*****************************************************************************/ 146 147 sal_Bool SAL_CALL 148 osl_getModuleHandle(rtl_uString *pModuleName, oslModule *pResult) 149 { 150 HMODULE hmod; 151 APIRET rc; 152 rc = DosQueryModuleHandle(pModuleName->buffer, &hmod); 153 if( rc == NO_ERROR) 154 { 155 *pResult = (oslModule) hmod; 156 return sal_True; 157 } 158 159 return sal_False; 160 } 161 162 /*****************************************************************************/ 163 /* osl_unloadModule */ 164 /*****************************************************************************/ 165 void SAL_CALL osl_unloadModule(oslModule Module) 166 { 167 #if OSL_DEBUG_LEVEL>0 168 if (!Module) 169 fprintf( stderr, "osl_unloadModule NULL HANDLE.\n"); 170 #endif 171 172 DosFreeModule((HMODULE)Module); 173 } 174 175 /*****************************************************************************/ 176 /* osl_getSymbol */ 177 /*****************************************************************************/ 178 void* SAL_CALL 179 osl_getSymbol(oslModule Module, rtl_uString* pSymbolName) 180 { 181 return (void *) osl_getFunctionSymbol(Module, pSymbolName); 182 } 183 184 /*****************************************************************************/ 185 /* osl_getFunctionSymbol */ 186 /*****************************************************************************/ 187 oslGenericFunction SAL_CALL osl_getFunctionSymbol( oslModule Module, rtl_uString *strSymbolName ) 188 { 189 rtl_String *symbolName = NULL; 190 oslGenericFunction address; 191 192 OSL_ASSERT(Module); 193 OSL_ASSERT(strSymbolName); 194 195 rtl_uString2String( 196 &symbolName, 197 strSymbolName->buffer, 198 strSymbolName->length, 199 RTL_TEXTENCODING_UTF8, 200 OUSTRING_TO_OSTRING_CVTFLAGS 201 ); 202 203 address=osl_getAsciiFunctionSymbol(Module, rtl_string_getStr(symbolName)); 204 rtl_string_release(symbolName); 205 206 return address; 207 } 208 209 /*****************************************************************************/ 210 /* osl_getAsciiFunctionSymbol */ 211 /*****************************************************************************/ 212 oslGenericFunction SAL_CALL 213 osl_getAsciiFunctionSymbol( oslModule Module, const sal_Char *pSymbol ) 214 { 215 PFN pFunction; 216 APIRET rc; 217 void* pHandle=0; 218 219 OSL_ENSURE(Module,"osl_getSymbol : module handle is not valid"); 220 OSL_ENSURE(Module,"osl_getSymbol : ustrSymbolName"); 221 222 if ( Module!= 0 && pSymbol != 0 ) 223 { 224 225 rc = DosQueryProcAddr( (HMODULE) Module, 0, (PCSZ)pSymbol, &pFunction ); 226 if( rc == NO_ERROR ) 227 { 228 pHandle = (void*)pFunction; 229 } 230 else 231 { 232 // YD try again adding the '_' prefix 233 char _pszSymbolName[255]; 234 strcpy( _pszSymbolName, "_"); 235 strcat( _pszSymbolName, pSymbol); 236 rc = DosQueryProcAddr( (HMODULE) Module, 0, (PCSZ)_pszSymbolName, &pFunction ); 237 if( rc == NO_ERROR ) 238 pHandle = (void*)pFunction; 239 } 240 241 } 242 243 return pHandle; 244 } 245 246 /*****************************************************************************/ 247 /* osl_getModuleURLFromAddress */ 248 /*****************************************************************************/ 249 sal_Bool SAL_CALL osl_getModuleURLFromAddress(void * addr, rtl_uString ** ppLibraryUrl) 250 { 251 //APIRET APIENTRY DosQueryModFromEIP (HMODULE *phMod, ULONG *pObjNum, 252 // ULONG BuffLen, PCHAR pBuff, ULONG *pOffset, ULONG Address) 253 HMODULE hMod; 254 ULONG ObjNum; 255 CHAR Buff[2*_MAX_PATH]; 256 ULONG Offset; 257 APIRET rc; 258 259 // get module handle (and name) 260 rc = DosQueryModFromEIP( &hMod, &ObjNum, sizeof( Buff), Buff, &Offset, (ULONG)addr); 261 if (rc) 262 return sal_False; 263 264 // get module full path 265 rc = DosQueryModuleName( hMod, sizeof( Buff), Buff); 266 if (rc) 267 return sal_False; 268 269 #if OSL_DEBUG_LEVEL > 1 270 OSL_TRACE("module.c::osl_getModuleURLFromAddress - %s\n", Buff); 271 #endif 272 273 // convert to URL 274 rtl_uString *ustrSysPath = NULL; 275 rtl_string2UString( &ustrSysPath, Buff, strlen(Buff), osl_getThreadTextEncoding(), OSTRING_TO_OUSTRING_CVTFLAGS ); 276 OSL_ASSERT(ustrSysPath != NULL); 277 osl_getFileURLFromSystemPath( ustrSysPath, ppLibraryUrl ); 278 rtl_uString_release( ustrSysPath ); 279 280 return sal_True; 281 } 282 283 /*****************************************************************************/ 284 /* osl_getModuleURLFromFunctionAddress */ 285 /*****************************************************************************/ 286 sal_Bool SAL_CALL osl_getModuleURLFromFunctionAddress( oslGenericFunction addr, rtl_uString ** ppLibraryUrl ) 287 { 288 return osl_getModuleURLFromAddress( ( void * )addr, ppLibraryUrl ); 289 } 290 291 /*****************************************************************************/ 292 293