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>10 107 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 debug_printf("osl_loadModule error %s", szError); 128 129 #ifndef OSL_DEBUG_LEVEL 130 WinMessageBox(HWND_DESKTOP,HWND_DESKTOP, 131 szError, "Critical error: DosLoadModule failed", 132 0, MB_ERROR | MB_OK | MB_MOVEABLE); 133 #endif 134 } 135 } 136 } 137 } 138 139 rtl_uString_release( ustrTmp ); 140 141 return pModule; 142 } 143 144 /*****************************************************************************/ 145 /* osl_getModuleHandle */ 146 /*****************************************************************************/ 147 148 sal_Bool SAL_CALL 149 osl_getModuleHandle(rtl_uString *pModuleName, oslModule *pResult) 150 { 151 HMODULE hmod; 152 APIRET rc; 153 rc = DosQueryModuleHandle(pModuleName->buffer, &hmod); 154 if( rc == NO_ERROR) 155 { 156 *pResult = (oslModule) hmod; 157 return sal_True; 158 } 159 160 return sal_False; 161 } 162 163 /*****************************************************************************/ 164 /* osl_unloadModule */ 165 /*****************************************************************************/ 166 void SAL_CALL osl_unloadModule(oslModule Module) 167 { 168 #if OSL_DEBUG_LEVEL>0 169 if (!Module) 170 fprintf( stderr, "osl_unloadModule NULL HANDLE.\n"); 171 #endif 172 173 DosFreeModule((HMODULE)Module); 174 } 175 176 /*****************************************************************************/ 177 /* osl_getSymbol */ 178 /*****************************************************************************/ 179 void* SAL_CALL 180 osl_getSymbol(oslModule Module, rtl_uString* pSymbolName) 181 { 182 return (void *) osl_getFunctionSymbol(Module, pSymbolName); 183 } 184 185 /*****************************************************************************/ 186 /* osl_getFunctionSymbol */ 187 /*****************************************************************************/ 188 oslGenericFunction SAL_CALL osl_getFunctionSymbol( oslModule Module, rtl_uString *strSymbolName ) 189 { 190 rtl_String *symbolName = NULL; 191 oslGenericFunction address; 192 193 OSL_ASSERT(Module); 194 OSL_ASSERT(strSymbolName); 195 196 rtl_uString2String( 197 &symbolName, 198 strSymbolName->buffer, 199 strSymbolName->length, 200 RTL_TEXTENCODING_UTF8, 201 OUSTRING_TO_OSTRING_CVTFLAGS 202 ); 203 204 address=osl_getAsciiFunctionSymbol(Module, rtl_string_getStr(symbolName)); 205 rtl_string_release(symbolName); 206 207 return address; 208 } 209 210 /*****************************************************************************/ 211 /* osl_getAsciiFunctionSymbol */ 212 /*****************************************************************************/ 213 oslGenericFunction SAL_CALL 214 osl_getAsciiFunctionSymbol( oslModule Module, const sal_Char *pSymbol ) 215 { 216 PFN pFunction; 217 APIRET rc; 218 void* pHandle=0; 219 220 OSL_ENSURE(Module,"osl_getSymbol : module handle is not valid"); 221 OSL_ENSURE(Module,"osl_getSymbol : ustrSymbolName"); 222 223 if ( Module!= 0 && pSymbol != 0 ) 224 { 225 226 rc = DosQueryProcAddr( (HMODULE) Module, 0, (PCSZ)pSymbol, &pFunction ); 227 if( rc == NO_ERROR ) 228 { 229 pHandle = (void*)pFunction; 230 } 231 else 232 { 233 // YD try again adding the '_' prefix 234 char _pszSymbolName[255]; 235 strcpy( _pszSymbolName, "_"); 236 strcat( _pszSymbolName, pSymbol); 237 rc = DosQueryProcAddr( (HMODULE) Module, 0, (PCSZ)_pszSymbolName, &pFunction ); 238 if( rc == NO_ERROR ) 239 pHandle = (void*)pFunction; 240 } 241 242 } 243 244 return pHandle; 245 } 246 247 /*****************************************************************************/ 248 /* osl_getModuleURLFromAddress */ 249 /*****************************************************************************/ 250 sal_Bool SAL_CALL osl_getModuleURLFromAddress(void * addr, rtl_uString ** ppLibraryUrl) 251 { 252 //APIRET APIENTRY DosQueryModFromEIP (HMODULE *phMod, ULONG *pObjNum, 253 // ULONG BuffLen, PCHAR pBuff, ULONG *pOffset, ULONG Address) 254 HMODULE hMod; 255 ULONG ObjNum; 256 CHAR Buff[2*_MAX_PATH]; 257 ULONG Offset; 258 APIRET rc; 259 260 // get module handle (and name) 261 rc = DosQueryModFromEIP( &hMod, &ObjNum, sizeof( Buff), Buff, &Offset, (ULONG)addr); 262 if (rc) 263 return sal_False; 264 265 // get module full path 266 rc = DosQueryModuleName( hMod, sizeof( Buff), Buff); 267 if (rc) 268 return sal_False; 269 270 #if OSL_DEBUG_LEVEL > 1 271 OSL_TRACE("module.c::osl_getModuleURLFromAddress - %s\n", Buff); 272 #endif 273 274 // convert to URL 275 rtl_uString *ustrSysPath = NULL; 276 rtl_string2UString( &ustrSysPath, Buff, strlen(Buff), osl_getThreadTextEncoding(), OSTRING_TO_OUSTRING_CVTFLAGS ); 277 OSL_ASSERT(ustrSysPath != NULL); 278 osl_getFileURLFromSystemPath( ustrSysPath, ppLibraryUrl ); 279 rtl_uString_release( ustrSysPath ); 280 281 return sal_True; 282 } 283 284 /*****************************************************************************/ 285 /* osl_getModuleURLFromFunctionAddress */ 286 /*****************************************************************************/ 287 sal_Bool SAL_CALL osl_getModuleURLFromFunctionAddress( oslGenericFunction addr, rtl_uString ** ppLibraryUrl ) 288 { 289 return osl_getModuleURLFromAddress( ( void * )addr, ppLibraryUrl ); 290 } 291 292 /*****************************************************************************/ 293 294