mirror of
https://github.com/chocolate-doom/launcher.git
synced 2024-11-28 23:22:39 +00:00
109 lines
2.6 KiB
Objective-C
109 lines
2.6 KiB
Objective-C
/* ... */
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// Copyright(C) 2009 Simon Howard
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version 2
|
|
// of the License, or (at your option) any later version.
|
|
//
|
|
// This program 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 for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
// 02111-1307, USA.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
#define RESPONSE_FILE "/tmp/launcher.rsp"
|
|
|
|
static char *executable_path;
|
|
|
|
// Called on startup to save the location of the launcher program
|
|
// (within a package, other executables should be in the same directory)
|
|
|
|
void SetProgramLocation(const char *path)
|
|
{
|
|
char *p;
|
|
|
|
executable_path = strdup(path);
|
|
|
|
p = strrchr(executable_path, '/');
|
|
*p = '\0';
|
|
}
|
|
|
|
// Write out the response file containing command line arguments.
|
|
|
|
static void WriteResponseFile(const char *iwad, const char *args)
|
|
{
|
|
FILE *fstream;
|
|
|
|
fstream = fopen(RESPONSE_FILE, "w");
|
|
|
|
if (iwad != NULL)
|
|
{
|
|
fprintf(fstream, "-iwad \"%s\"", iwad);
|
|
}
|
|
|
|
if (args != NULL)
|
|
{
|
|
fprintf(fstream, "%s", args);
|
|
}
|
|
|
|
fclose(fstream);
|
|
}
|
|
|
|
static void DoExec(const char *executable, const char *iwad, const char *args)
|
|
{
|
|
char *argv[3];
|
|
|
|
argv[0] = malloc(strlen(executable_path) + strlen(executable) + 3);
|
|
sprintf(argv[0], "%s/%s", executable_path, executable);
|
|
|
|
if (iwad != NULL || args != NULL)
|
|
{
|
|
WriteResponseFile(iwad, args);
|
|
|
|
argv[1] = "@" RESPONSE_FILE;
|
|
argv[2] = NULL;
|
|
}
|
|
else
|
|
{
|
|
argv[1] = NULL;
|
|
}
|
|
|
|
execv(argv[0], argv);
|
|
exit(-1);
|
|
}
|
|
|
|
// Execute the specified executable contained in the same directory
|
|
// as the launcher, with the specified arguments.
|
|
|
|
void ExecuteProgram(const char *executable, const char *iwad, const char *args)
|
|
{
|
|
pid_t childpid;
|
|
|
|
childpid = fork();
|
|
|
|
if (childpid == 0)
|
|
{
|
|
DoExec(executable, iwad, args);
|
|
}
|
|
else
|
|
{
|
|
signal(SIGCHLD, SIG_IGN);
|
|
}
|
|
}
|
|
|