/****************************************************************************** * * Project: MapServer * Purpose: Functions copied from GDAL's CPL. * Author: Y. Assefa, DM Solutions Group (assefa@dmsolutions.ca) * * This file contain utility functions that come from the GDAL/OGR cpl * library. The idea behind it is to have access in mapserver to all these * utilities, without being constarined to link with GDAL/OGR. * Note : Names of functions used here are the same as those in the cpl * library with the exception the the CPL prefix is changed to ms * (eg : CPLGetBasename() would become msGetBasename()) * ****************************************************************************** * Copyright (c) 1996-2005 Regents of the University of Minnesota. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies of this Software or works derived from this Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ****************************************************************************** * * $Log: mapcpl.c,v $ * Revision 1.5 2005/10/29 02:03:43 jani * MS RFC 8: Pluggable External Feature Layer Providers (bug 1477). * * Revision 1.4 2005/06/14 16:03:33 dan * Updated copyright date to 2005 * * Revision 1.3 2004/10/21 04:30:55 frank * Added standardized headers. Added MS_CVSID(). * */ /* $Id: mapcpl.c,v 1.5 2005/10/29 02:03:43 jani Exp $ */ #include #include "map.h" MS_CVSID("$Id: mapcpl.c,v 1.5 2005/10/29 02:03:43 jani Exp $") /* should be size of largest possible filename */ #define MS_PATH_BUF_SIZE 2048 static char szStaticResult[MS_PATH_BUF_SIZE]; /************************************************************************/ /* msFindFilenameStart() */ /************************************************************************/ static int msFindFilenameStart( const char * pszFilename ) { int iFileStart; for( iFileStart = strlen(pszFilename); iFileStart > 0 && pszFilename[iFileStart-1] != '/' && pszFilename[iFileStart-1] != '\\'; iFileStart-- ) {} return iFileStart; } /************************************************************************/ /* msGetBasename() */ /************************************************************************/ /** * Extract basename (non-directory, non-extension) portion of filename. * * Returns a string containing the file basename portion of the passed * name. If there is no basename (passed value ends in trailing directory * separator, or filename starts with a dot) an empty string is returned. * * 
 * msGetBasename( "abc/def.xyz" ) == "def"
 * msGetBasename( "abc/def" ) == "def"
 * msGetBasename( "abc/def/" ) == ""
 *
* * @param pszFullFilename the full filename potentially including a path. * * @return just the non-directory, non-extension portion of the path in * an internal string which must not be freed. The string * may be destroyed by the next ms filename handling call. */ const char *msGetBasename( const char *pszFullFilename ) { int iFileStart = msFindFilenameStart( pszFullFilename ); int iExtStart, nLength; for( iExtStart = strlen(pszFullFilename); iExtStart > iFileStart && pszFullFilename[iExtStart] != '.'; iExtStart-- ) {} if( iExtStart == iFileStart ) iExtStart = strlen(pszFullFilename); nLength = iExtStart - iFileStart; assert( nLength < MS_PATH_BUF_SIZE ); strncpy( szStaticResult, pszFullFilename + iFileStart, nLength ); szStaticResult[nLength] = '\0'; return szStaticResult; } /* Id: GDAL/port/cplgetsymbol.cpp,v 1.14 2004/11/11 20:40:38 fwarmerdam Exp */ /* ==================================================================== */ /* Unix Implementation */ /* ==================================================================== */ #if defined(HAVE_DLFCN_H) #define GOT_GETSYMBOL #include /************************************************************************/ /* msGetSymbol() */ /************************************************************************/ /** * Fetch a function pointer from a shared library / DLL. * * This function is meant to abstract access to shared libraries and * DLLs and performs functions similar to dlopen()/dlsym() on Unix and * LoadLibrary() / GetProcAddress() on Windows. * * If no support for loading entry points from a shared library is available * this function will always return NULL. Rules on when this function * issues a msError() or not are not currently well defined, and will have * to be resolved in the future. * * Currently msGetSymbol() doesn't try to: * * * Some of these issues may be worked on in the future. * * @param pszLibrary the name of the shared library or DLL containing * the function. May contain path to file. If not system supplies search * paths will be used. * @param pszSymbolName the name of the function to fetch a pointer to. * @return A pointer to the function if found, or NULL if the function isn't * found, or the shared library can't be loaded. */ void *msGetSymbol( const char * pszLibrary, const char * pszSymbolName ) { void *pLibrary; void *pSymbol; pLibrary = dlopen(pszLibrary, RTLD_LAZY); if( pLibrary == NULL ) { msSetError(MS_MISCERR, "Dynamic loading failed: %s", "msGetSymbol()", dlerror()); return NULL; } pSymbol = dlsym( pLibrary, pszSymbolName ); #if (defined(__APPLE__) && defined(__MACH__)) /* On mach-o systems, C symbols have a leading underscore and depending * on how dlcompat is configured it may or may not add the leading * underscore. So if dlsym() fails add an underscore and try again. */ if( pSymbol == NULL ) { char withUnder[strlen(pszSymbolName) + 2]; withUnder[0] = '_'; withUnder[1] = 0; strcat(withUnder, pszSymbolName); pSymbol = dlsym( pLibrary, withUnder ); } #endif if( pSymbol == NULL ) { msSetError(MS_MISCERR, "Dynamic loading failed: %s", "msGetSymbol()", dlerror()); return NULL; } return( pSymbol ); } #endif /* def __unix__ && defined(HAVE_DLFCN_H) */ /* ==================================================================== */ /* Windows Implementation */ /* ==================================================================== */ #ifdef WIN32 #define GOT_GETSYMBOL #include /************************************************************************/ /* msGetSymbol() */ /************************************************************************/ void *msGetSymbol( const char * pszLibrary, const char * pszSymbolName ) { void *pLibrary; void *pSymbol; pLibrary = LoadLibrary(pszLibrary); if( pLibrary == NULL ) { msSetError(MS_MISCERR, "Can't load requested dynamic library: %s", "msGetSymbol()", pszLibrary); return NULL; } pSymbol = (void *) GetProcAddress( (HINSTANCE) pLibrary, pszSymbolName ); if( pSymbol == NULL ) { msSetError(MS_MISCERR, "Can't find requested entry point: %s in lib %s", "msGetSymbol()", pszSymbolName, pLibrary); return NULL; } return( pSymbol ); } #endif /* def _WIN32 */ /* ==================================================================== */ /* Dummy implementation. */ /* ==================================================================== */ #ifndef GOT_GETSYMBOL /************************************************************************/ /* msGetSymbol() */ /* */ /* Dummy implementation. */ /************************************************************************/ void *msGetSymbol(const char *pszLibrary, const char *pszEntryPoint) { msSetError(MS_MISCERR, "msGetSymbol(%s,%s) called. Failed as this is stub implementation.", "msGetSymbol()", pszLibrary, pszEntryPoint); return NULL; } #endif