8231277 : Adjust Linux application image layout
Submitted-by: asemenyuk
Reviewed-by: herrick, almatvee
/*
* Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <dlfcn.h>
#include <locale.h>
#include <string>
#include <libgen.h>
#include <stdio.h>
#include <unistd.h>
typedef bool (*start_launcher)(int argc, char* argv[]);
typedef void (*stop_launcher)();
#define MAX_PATH 1024
std::string GetProgramPath() {
ssize_t len = 0;
std::string result;
char buffer[MAX_PATH] = {0};
if ((len = readlink("/proc/self/exe", buffer, MAX_PATH - 1)) != -1) {
buffer[len] = '\0';
result = buffer;
}
return result;
}
int main(int argc, char *argv[]) {
int result = 1;
setlocale(LC_ALL, "en_US.utf8");
void* library = NULL;
{
std::string programPath = GetProgramPath();
std::string libraryName = dirname((char*)programPath.c_str());
libraryName += "/../lib/libapplauncher.so";
library = dlopen(libraryName.c_str(), RTLD_LAZY);
if (library == NULL) {
fprintf(stderr, "dlopen failed: %s\n", dlerror());
fprintf(stderr, "%s not found.\n", libraryName.c_str());
}
}
if (library != NULL) {
start_launcher start = (start_launcher)dlsym(library, "start_launcher");
stop_launcher stop = (stop_launcher)dlsym(library, "stop_launcher");
if (start != NULL && stop != NULL) {
if (start(argc, argv) == true) {
result = 0;
stop();
}
} else {
fprintf(stderr, "cannot find start_launcher and stop_launcher in libapplauncher.so");
}
dlclose(library);
}
return result;
}