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-rw-r--r--odk/source/unoapploader/unx/unoapploader.c310
1 files changed, 310 insertions, 0 deletions
diff --git a/odk/source/unoapploader/unx/unoapploader.c b/odk/source/unoapploader/unx/unoapploader.c
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+++ b/odk/source/unoapploader/unx/unoapploader.c
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#ifdef LINUX
+#define __USE_GNU
+#endif
+#include <dlfcn.h>
+
+#include <cppuhelper/findsofficepath.h>
+#include <rtl/string.h>
+#include <sal/types.h>
+
+static char* getPath(void);
+static char* createCommandName( char* argv0 );
+
+static const int SEPARATOR = '/';
+static const char* PATHSEPARATOR = ":";
+
+
+/*
+ * The main function implements a loader for applications which use UNO.
+ *
+ * <p>This code runs on the Unix/Linux platforms only.</p>
+ *
+ * <p>The main function detects a UNO installation on the system and adds the
+ * relevant directories of the installation to the LD_LIBRARY_PATH environment
+ * variable. After that, the application process is loaded and started, whereby
+ * the new process inherits the environment of the calling process, including
+ * the modified LD_LIBRARY_PATH environment variable. The application's
+ * executable name must be the same as the name of this executable, prefixed
+ * by '_'.</p>
+ * <p>On MACOSX DYLD_LIBRARY_PATH is used instead of LD_LIBRARY_PATH!<p>
+ *
+ * <p>A UNO installation can be specified by the user by setting the UNO_PATH
+ * environment variable to the program directory of the UNO installation.
+ * If no installation is specified by the user, the default installation on
+ * the system will be taken. The default installation is found from the
+ * PATH environment variable. This requires that the 'soffice' executable or
+ * a symbolic link is in one of the directories listed in the PATH environment
+ * variable.</p>
+ */
+int main( int argc, char *argv[] )
+{
+ char* path;
+ char* cmdname;
+
+ (void) argc; /* avoid warning about unused parameter */
+
+ /* get the path of the UNO installation */
+ path = getPath();
+
+ if ( path != NULL )
+ {
+#if defined(MACOSX)
+ static const char* ENVVARNAME = "DYLD_LIBRARY_PATH";
+#elif defined(AIX)
+ static const char* ENVVARNAME = "LIBPATH";
+#else
+ static const char* ENVVARNAME = "LD_LIBRARY_PATH";
+#endif
+ char* libpath;
+ char* value;
+ char* envstr;
+ int size;
+
+ size_t pathlen = strlen(path);
+ struct stat stats;
+ int ret;
+
+ static char const unoinfoSuffix[] = "/unoinfo";
+ char * unoinfo = malloc(
+ pathlen + RTL_CONSTASCII_LENGTH(unoinfoSuffix) + 1);
+ /*TODO: overflow */
+ if (unoinfo == NULL) {
+ free(path);
+ fprintf(stderr, "Error: out of memory!\n");
+ exit(EXIT_FAILURE);
+ }
+ strcpy(unoinfo, path);
+ strcpy(
+ unoinfo + pathlen,
+ unoinfoSuffix + (pathlen == 0 || path[pathlen - 1] != '/' ? 0 : 1));
+ ret = lstat(unoinfo, &stats);
+ free(unoinfo);
+
+ if (ret == 0) {
+ char * cmd = malloc(
+ 2 * pathlen + RTL_CONSTASCII_LENGTH("/unoinfo c++") + 1);
+ /*TODO: overflow */
+ char const * p;
+ char * q;
+ FILE * f;
+ size_t n = 1000;
+ size_t old = 0;
+ if (cmd == NULL) {
+ fprintf(stderr, "Error: out of memory!\n");
+ exit(EXIT_FAILURE);
+ }
+ p = path;
+ q = cmd;
+ while (*p != '\0') {
+ *q++ = '\\';
+ *q++ = *p++;
+ }
+ if (p == path || p[-1] != '/') {
+ *q++ = '/';
+ }
+ strcpy(q, "unoinfo c++");
+ f = popen(cmd, "r");
+ free(cmd);
+ if (f == NULL)
+ {
+ fprintf(stderr, "Error: calling unoinfo failed!\n");
+ exit(EXIT_FAILURE);
+ }
+ libpath = NULL;
+ for (;;) {
+ size_t m;
+ libpath = realloc(libpath, n);
+ if (libpath == NULL) {
+ fprintf(
+ stderr,
+ "Error: out of memory reading unoinfo output!\n");
+ exit(EXIT_FAILURE);
+ }
+ m = fread(libpath + old, 1, n - old - 1, f);
+ if (m != n - old - 1) {
+ if (ferror(f)) {
+ fprintf(stderr, "Error: cannot read unoinfo output!\n");
+ exit(EXIT_FAILURE);
+ }
+ libpath[old + m] = '\0';
+ break;
+ }
+ if (n >= SAL_MAX_SIZE / 2) {
+ fprintf(
+ stderr,
+ "Error: out of memory reading unoinfo output!\n");
+ exit(EXIT_FAILURE);
+ }
+ old = n - 1;
+ n *= 2;
+ }
+ if (pclose(f) != 0) {
+ fprintf(stderr, "Error: executing unoinfo failed!\n");
+ exit(EXIT_FAILURE);
+ }
+ free(path);
+ }
+ else
+ {
+ /* Assume an old OOo 2.x installation without unoinfo: */
+ libpath = path;
+ }
+
+ value = getenv( ENVVARNAME );
+
+ // workaround for finding wrong libsqlite3.dylib in the office installation
+ // For MacOS > 10.6 nss uses the system lib -> unresolved symbol _sqlite3_wal_checkpoint
+#ifdef MACOSX
+ size = strlen( ENVVARNAME ) + strlen( "=/usr/lib:" ) + strlen( libpath ) + 1;
+#else
+ size = strlen( ENVVARNAME ) + strlen( "=" ) + strlen( libpath ) + 1;
+#endif
+ if ( value != NULL )
+ size += strlen( PATHSEPARATOR ) + strlen( value );
+ envstr = (char*) malloc( size );
+ strcpy( envstr, ENVVARNAME );
+#ifdef MACOSX
+ strcat( envstr, "=/usr/lib:" );
+#else
+ strcat( envstr, "=" );
+#endif
+ strcat( envstr, libpath );
+ free( libpath );
+ if ( value != NULL )
+ {
+ strcat( envstr, PATHSEPARATOR );
+ strcat( envstr, value );
+ }
+ /* coverity[tainted_data : FALSE] */
+ putenv( envstr );
+ }
+ else
+ {
+ fprintf( stderr, "Warning: no office installation found!\n" );
+ fflush( stderr );
+ }
+
+ /* set the executable name for the application process */
+ cmdname = createCommandName( argv[0] );
+ argv[0] = cmdname;
+
+ /*
+ * create the application process;
+ * if successful, execvp doesn't return to the calling process
+ */
+ /* coverity[tainted_string] - createCommandName creates a safe string */
+ execvp( cmdname, argv );
+ fprintf( stderr, "Error: execvp failed!\n" );
+ fflush( stderr );
+
+ return 0;
+}
+
+/*
+ * Gets the path of a UNO installation.
+ *
+ * @return the installation path or NULL, if no installation was specified or
+ * found, or if an error occurred.
+ * Returned pointer must be released with free()
+ */
+char* getPath(void)
+{
+ char* path = cppuhelper_detail_findSofficePath();
+
+ if ( path == NULL )
+ {
+ fprintf( stderr, "Warning: getting path from PATH environment "
+ "variable failed!\n" );
+ fflush( stderr );
+ }
+
+ return path;
+}
+
+/*
+ * Creates the application's executable file name.
+ *
+ * <p>The application's executable file name is the name of this executable
+ * prefixed by '_'.</p>
+ *
+ * @param argv0 specifies the argv[0] parameter of the main function
+ *
+ * @return the application's executable file name or NULL, if an error occurred
+ */
+char* createCommandName( char* argv0 )
+{
+ const char* CMDPREFIX = "_";
+ const char* prgname = NULL;
+
+ char* cmdname = NULL;
+ char* sep = NULL;
+#ifndef AIX
+ Dl_info dl_info;
+#endif
+
+ /* get the executable file name from argv0 */
+ prgname = argv0;
+
+#ifndef AIX
+ /*
+ * if argv0 doesn't contain an absolute path name, try to get the absolute
+ * path name from dladdr; note that this only works for Solaris, not for
+ * Linux
+ */
+ if ( argv0 != NULL && *argv0 != SEPARATOR &&
+ dladdr( (void*) &createCommandName, &dl_info ) &&
+ dl_info.dli_fname != NULL && *dl_info.dli_fname == SEPARATOR )
+ {
+ prgname = dl_info.dli_fname;
+ }
+#endif
+
+ /* prefix the executable file name by '_' */
+ if ( prgname != NULL )
+ {
+ cmdname = (char*) malloc( strlen( prgname ) + strlen( CMDPREFIX ) + 1 );
+ sep = strrchr( prgname, SEPARATOR );
+ if ( sep != NULL )
+ {
+ int pos = ++sep - prgname;
+ strncpy( cmdname, prgname, pos );
+ cmdname[ pos ] = '\0';
+ strcat( cmdname, CMDPREFIX );
+ strcat( cmdname, sep );
+ }
+ else
+ {
+ strcpy( cmdname, CMDPREFIX );
+ strcat( cmdname, prgname );
+ }
+ }
+
+ return cmdname;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */