/[LeafOK_CVS]/lbbs/src/net_server.c
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Revision 1.5 by sysadm, Wed Oct 20 07:46:32 2004 UTC Revision 1.11 by sysadm, Sat May 7 09:28:12 2005 UTC
# Line 16  Line 16 
16   ***************************************************************************/   ***************************************************************************/
17    
18  #include "common.h"  #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  int
26  net_server (const char *hostaddr, unsigned int port)  net_server (const char *hostaddr, unsigned int port)
27  {  {
28    int sock_server, sock_client, namelen, seq, netint;    int namelen, seq, netint, result, flags;
29    struct sockaddr_in sin;    struct sockaddr_in sin;
30    char temp[256];    char temp[256];
31      fd_set testfds;
32      struct timeval timeout;
33    
34    sock_server = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);    socket_server = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
35    
36    if (sock_server < 0)    if (socket_server < 0)
37      {      {
38        log_error ("Create socket failed\n");        log_error ("Create socket failed\n");
39        exit (1);        exit (1);
# Line 37  net_server (const char *hostaddr, unsign Line 44  net_server (const char *hostaddr, unsign
44      (strlen (hostaddr) > 0 ? inet_addr (hostaddr) : INADDR_ANY);      (strlen (hostaddr) > 0 ? inet_addr (hostaddr) : INADDR_ANY);
45    sin.sin_port = htons (port);    sin.sin_port = htons (port);
46    
47    if (bind (sock_server, (struct sockaddr *)&sin, sizeof(sin)) < 0)    if (bind (socket_server, (struct sockaddr *) &sin, sizeof (sin)) < 0)
48      {      {
49        sprintf(temp, "Bind address %s:%u failed\n",        log_error ("Bind address %s:%u failed\n",
50          inet_ntoa(sin.sin_addr), ntohs(sin.sin_port));                   inet_ntoa (sin.sin_addr), ntohs (sin.sin_port));
       log_error (temp);  
51        exit (2);        exit (2);
52      }      }
53    
54    if (listen (sock_server, 10) < 0)    if (listen (socket_server, 10) < 0)
55      {      {
56        log_error ("Socket listen failed\n");        log_error ("Socket listen failed\n");
57        exit (3);        exit (3);
58      }      }
59    
60    socket_server = sock_server;    strcpy (hostaddr_server, inet_ntoa (sin.sin_addr));
61    strcpy(hostaddr_server,inet_ntoa(sin.sin_addr));    port_server = ntohs (sin.sin_port);
62    port_server = ntohs(sin.sin_port);  
63        log_std ("Listening at %s:%d\n", hostaddr_server, port_server);
   sprintf(temp, "Listening at %s:%d\n",  
     hostaddr_server, port_server);  
   log_std (temp);  
64    
65    namelen = sizeof (sin);    namelen = sizeof (sin);
66    while(1)    while (1)
67      {      {
68        if ((sock_client = accept (sock_server, (struct sockaddr *) &sin, &namelen)) < 0)        FD_ZERO (&testfds);
69          {        FD_SET (socket_server, &testfds);
70            log_error ("Accept connection error\n");  
71          }        timeout.tv_sec = 1;
72        else        timeout.tv_usec = 0;
73          {  
74            sprintf(temp, "Accept connection from %s:%d\n",        result = SignalSafeSelect (FD_SETSIZE, &testfds, NULL, NULL, &timeout);
75              inet_ntoa(sin.sin_addr),ntohs(sin.sin_port));        if (result < 0)
76            log_std (temp);           {
77          }             log_error ("Accept connection error\n");
78                     continue;
79        if (fork_server(sock_server, sock_client, &sin)<0)           }
80          {  
81            log_error ("Fork error\n");        if (result == 0)
82          }           {
83                     continue;
84        if (close(sock_client) == -1)           }
85    
86          if (FD_ISSET (socket_server, &testfds))
87          {          {
88            log_error("Close client socket failed\n");            flags = fcntl (socket_server, F_GETFL, 0);
89              fcntl (socket_server, F_SETFL, flags | O_NONBLOCK);
90              while ((socket_client =
91                   accept (socket_server, (struct sockaddr *) &sin, &namelen)) < 0)
92                {
93                  if (errno != EWOULDBLOCK && errno != ECONNABORTED && errno != EINTR)
94                    {
95                      log_error ("Accept connection error\n");
96                      break;
97                    }
98                }
99              fcntl (socket_server, F_SETFL, flags);
100          }          }
101    
102          if (socket_client < 0)
103             {
104               log_error ("Accept connection error\n");
105               continue;
106             }
107    
108          strcpy (hostaddr_client, (const char *) inet_ntoa (sin.sin_addr));
109          port_client = ntohs (sin.sin_port);
110    
111          log_std ("Accept connection from %s:%d\n", hostaddr_client,
112                   port_client);
113    
114          if (fork_server () < 0)
115            {
116              log_error ("Fork error\n");
117            }
118    
119          if (close (socket_client) == -1)
120            {
121              log_error ("Close client socket failed\n");
122            }
123        }
124    
125      if (close (socket_server) == -1)
126        {
127          log_error ("Close server socket failed\n");
128      }      }
129    
130    return 0;    return 0;

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