| 1 |
/***************************************************************************
|
| 2 |
fork.c - description
|
| 3 |
-------------------
|
| 4 |
Copyright : (C) 2004-2025 by Leaflet
|
| 5 |
Email : leaflet@leafok.com
|
| 6 |
***************************************************************************/
|
| 7 |
|
| 8 |
/***************************************************************************
|
| 9 |
* *
|
| 10 |
* This program is free software; you can redistribute it and/or modify *
|
| 11 |
* it under the terms of the GNU General Public License as published by *
|
| 12 |
* the Free Software Foundation; either version 3 of the License, or *
|
| 13 |
* (at your option) any later version. *
|
| 14 |
* *
|
| 15 |
***************************************************************************/
|
| 16 |
|
| 17 |
#include "common.h"
|
| 18 |
#include "bbs_main.h"
|
| 19 |
#include "log.h"
|
| 20 |
#include "io.h"
|
| 21 |
#include "fork.h"
|
| 22 |
#include <stdio.h>
|
| 23 |
#include <string.h>
|
| 24 |
#include <signal.h>
|
| 25 |
#include <unistd.h>
|
| 26 |
#include <stdlib.h>
|
| 27 |
#include <errno.h>
|
| 28 |
|
| 29 |
int fork_server()
|
| 30 |
{
|
| 31 |
int pid;
|
| 32 |
|
| 33 |
pid = fork();
|
| 34 |
|
| 35 |
if (pid > 0) // Parent process
|
| 36 |
{
|
| 37 |
SYS_child_process_count++;
|
| 38 |
log_std("Child process (%d) start\n", pid);
|
| 39 |
return 0;
|
| 40 |
}
|
| 41 |
else if (pid < 0) // Error
|
| 42 |
{
|
| 43 |
log_error("fork() error (%d)\n", errno);
|
| 44 |
return -1;
|
| 45 |
}
|
| 46 |
|
| 47 |
// Child process
|
| 48 |
if (close(socket_server) == -1)
|
| 49 |
{
|
| 50 |
log_error("Close server socket failed\n");
|
| 51 |
return -2;
|
| 52 |
}
|
| 53 |
|
| 54 |
// Redirect Input
|
| 55 |
close(STDIN_FILENO);
|
| 56 |
if (dup2(socket_client, STDIN_FILENO) == -1)
|
| 57 |
{
|
| 58 |
log_error("Redirect stdin to client socket failed\n");
|
| 59 |
return -3;
|
| 60 |
}
|
| 61 |
|
| 62 |
// Redirect Output
|
| 63 |
close(STDOUT_FILENO);
|
| 64 |
if (dup2(socket_client, STDOUT_FILENO) == -1)
|
| 65 |
{
|
| 66 |
log_error("Redirect stdout to client socket failed\n");
|
| 67 |
return -4;
|
| 68 |
}
|
| 69 |
|
| 70 |
SYS_child_process_count = 0;
|
| 71 |
|
| 72 |
// Reset signal handler to default
|
| 73 |
signal(SIGHUP, SIG_DFL);
|
| 74 |
signal(SIGCHLD, SIG_DFL);
|
| 75 |
signal(SIGTERM, SIG_DFL);
|
| 76 |
|
| 77 |
bbs_main();
|
| 78 |
|
| 79 |
// Child process exit
|
| 80 |
SYS_server_exit = 1;
|
| 81 |
|
| 82 |
if (close(socket_client) == -1)
|
| 83 |
{
|
| 84 |
log_error("Close client socket failed\n");
|
| 85 |
}
|
| 86 |
|
| 87 |
// Close Input and Output for client
|
| 88 |
close(STDIN_FILENO);
|
| 89 |
close(STDOUT_FILENO);
|
| 90 |
|
| 91 |
log_std("Process exit normally\n");
|
| 92 |
|
| 93 |
log_end();
|
| 94 |
|
| 95 |
return 0;
|
| 96 |
}
|
Parent Directory
| 
Revision Log