libgourou/utils/launcher.cpp

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2022-08-15 09:54:13 +02:00
#include <iostream>
#include <unistd.h>
#include <libgen.h>
#include <string.h>
#include "utils_common.h"
#ifndef DEFAULT_UTIL
#define DEFAULT_UTIL "acsmdownloader"
#endif
/* Inspired from https://discourse.appimage.org/t/call-alternative-binary-from-appimage/93/10*/
int main(int argc, char** argv)
{
char* util, *argv0;
char* mountPoint = getenv("APPDIR");
std::string fullPath;
/* Original command is in ARGV0 env variable*/
argv0 = strdup(getenv("ARGV0"));
util = basename(argv0);
fullPath = std::string(mountPoint) + util;
if (std::string(util) == "launcher" || !fileExists(fullPath.c_str()))
fullPath = std::string(mountPoint) + DEFAULT_UTIL;
free(argv0);
argv[0] = strdup(fullPath.c_str());
if (execvp(argv[0], argv))
std::cout << "Unable to launch '" << argv[0] << "'" << std::endl;
/* Should not happens */
free(argv[0]);
return 0;
}