| 1 |
/***************************************************************************
|
| 2 |
net_server.c - description
|
| 3 |
-------------------
|
| 4 |
begin : Mon Oct 11 2004
|
| 5 |
copyright : (C) 2004 by Leaflet
|
| 6 |
email : leaflet@leafok.com
|
| 7 |
***************************************************************************/
|
| 8 |
|
| 9 |
/***************************************************************************
|
| 10 |
* *
|
| 11 |
* This program is free software; you can redistribute it and/or modify *
|
| 12 |
* it under the terms of the GNU General Public License as published by *
|
| 13 |
* the Free Software Foundation; either version 2 of the License, or *
|
| 14 |
* (at your option) any later version. *
|
| 15 |
* *
|
| 16 |
***************************************************************************/
|
| 17 |
|
| 18 |
#include "common.h"
|
| 19 |
#include "io.h"
|
| 20 |
#include "tcplib.h"
|
| 21 |
#include <sys/socket.h>
|
| 22 |
#include <netinet/in.h>
|
| 23 |
#include <arpa/inet.h>
|
| 24 |
|
| 25 |
int net_server(const char *hostaddr, unsigned int port)
|
| 26 |
{
|
| 27 |
int namelen, seq, netint, result, flags;
|
| 28 |
struct sockaddr_in sin;
|
| 29 |
char temp[256];
|
| 30 |
fd_set testfds;
|
| 31 |
struct timeval timeout;
|
| 32 |
|
| 33 |
socket_server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
| 34 |
|
| 35 |
if (socket_server < 0)
|
| 36 |
{
|
| 37 |
log_error("Create socket failed\n");
|
| 38 |
exit(1);
|
| 39 |
}
|
| 40 |
|
| 41 |
sin.sin_family = AF_INET;
|
| 42 |
sin.sin_addr.s_addr =
|
| 43 |
(strlen(hostaddr) > 0 ? inet_addr(hostaddr) : INADDR_ANY);
|
| 44 |
sin.sin_port = htons(port);
|
| 45 |
|
| 46 |
if (bind(socket_server, (struct sockaddr *)&sin, sizeof(sin)) < 0)
|
| 47 |
{
|
| 48 |
log_error("Bind address %s:%u failed\n",
|
| 49 |
inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));
|
| 50 |
exit(2);
|
| 51 |
}
|
| 52 |
|
| 53 |
if (listen(socket_server, 10) < 0)
|
| 54 |
{
|
| 55 |
log_error("Socket listen failed\n");
|
| 56 |
exit(3);
|
| 57 |
}
|
| 58 |
|
| 59 |
strcpy(hostaddr_server, inet_ntoa(sin.sin_addr));
|
| 60 |
port_server = ntohs(sin.sin_port);
|
| 61 |
|
| 62 |
log_std("Listening at %s:%d\n", hostaddr_server, port_server);
|
| 63 |
|
| 64 |
namelen = sizeof(sin);
|
| 65 |
while (!SYS_exit)
|
| 66 |
{
|
| 67 |
FD_ZERO(&testfds);
|
| 68 |
FD_SET(socket_server, &testfds);
|
| 69 |
|
| 70 |
timeout.tv_sec = 1;
|
| 71 |
timeout.tv_usec = 0;
|
| 72 |
|
| 73 |
result = SignalSafeSelect(FD_SETSIZE, &testfds, NULL, NULL, &timeout);
|
| 74 |
if (result < 0)
|
| 75 |
{
|
| 76 |
log_error("Accept connection error\n");
|
| 77 |
continue;
|
| 78 |
}
|
| 79 |
|
| 80 |
if (result == 0)
|
| 81 |
{
|
| 82 |
continue;
|
| 83 |
}
|
| 84 |
|
| 85 |
if (FD_ISSET(socket_server, &testfds))
|
| 86 |
{
|
| 87 |
flags = fcntl(socket_server, F_GETFL, 0);
|
| 88 |
fcntl(socket_server, F_SETFL, flags | O_NONBLOCK);
|
| 89 |
while ((socket_client =
|
| 90 |
accept(socket_server, (struct sockaddr *)&sin, &namelen)) < 0)
|
| 91 |
{
|
| 92 |
if (errno != EWOULDBLOCK && errno != ECONNABORTED && errno != EINTR)
|
| 93 |
{
|
| 94 |
log_error("Accept connection error\n");
|
| 95 |
break;
|
| 96 |
}
|
| 97 |
}
|
| 98 |
fcntl(socket_server, F_SETFL, flags);
|
| 99 |
}
|
| 100 |
|
| 101 |
if (socket_client < 0)
|
| 102 |
{
|
| 103 |
log_error("Accept connection error\n");
|
| 104 |
continue;
|
| 105 |
}
|
| 106 |
|
| 107 |
strcpy(hostaddr_client, (const char *)inet_ntoa(sin.sin_addr));
|
| 108 |
port_client = ntohs(sin.sin_port);
|
| 109 |
|
| 110 |
log_std("Accept connection from %s:%d\n", hostaddr_client,
|
| 111 |
port_client);
|
| 112 |
|
| 113 |
if (fork_server() < 0)
|
| 114 |
{
|
| 115 |
log_error("Fork error\n");
|
| 116 |
}
|
| 117 |
|
| 118 |
if (close(socket_client) == -1)
|
| 119 |
{
|
| 120 |
log_error("Close client socket failed\n");
|
| 121 |
}
|
| 122 |
}
|
| 123 |
|
| 124 |
if (close(socket_server) == -1)
|
| 125 |
{
|
| 126 |
log_error("Close server socket failed\n");
|
| 127 |
}
|
| 128 |
|
| 129 |
return 0;
|
| 130 |
}
|
Parent Directory
| 
Revision Log