/[LeafOK_CVS]/lbbs/src/net_server.c
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Revision 1.9 by sysadm, Sat Mar 19 14:44:21 2005 UTC Revision 1.12 by sysadm, Sat May 7 12:08:28 2005 UTC
# Line 17  Line 17 
17    
18  #include "common.h"  #include "common.h"
19  #include "io.h"  #include "io.h"
20    #include "tcplib.h"
21  #include <sys/socket.h>  #include <sys/socket.h>
22  #include <netinet/in.h>  #include <netinet/in.h>
23  #include <arpa/inet.h>  #include <arpa/inet.h>
# Line 24  Line 25 
25  int  int
26  net_server (const char *hostaddr, unsigned int port)  net_server (const char *hostaddr, unsigned int port)
27  {  {
28    int 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    socket_server = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);    socket_server = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
35    
# Line 41  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 (socket_server, (struct sockaddr *)&sin, sizeof(sin)) < 0)    if (bind (socket_server, (struct sockaddr *) &sin, sizeof (sin)) < 0)
48      {      {
49        log_error ("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));
51        exit (2);        exit (2);
52      }      }
53    
# Line 54  net_server (const char *hostaddr, unsign Line 57  net_server (const char *hostaddr, unsign
57        exit (3);        exit (3);
58      }      }
59    
60    strcpy(hostaddr_server, inet_ntoa(sin.sin_addr));    strcpy (hostaddr_server, inet_ntoa (sin.sin_addr));
61    port_server = ntohs(sin.sin_port);    port_server = ntohs (sin.sin_port);
62      
63    log_std ("Listening at %s:%d\n", hostaddr_server, port_server);    log_std ("Listening at %s:%d\n", hostaddr_server, port_server);
64    
65    namelen = sizeof (sin);    namelen = sizeof (sin);
66    while(1)    while (!SYS_exit)
67      {      {
68        if ((socket_client = accept (socket_server, (struct sockaddr *) &sin, &namelen)) < 0)        FD_ZERO (&testfds);
69          {        FD_SET (socket_server, &testfds);
           log_error ("Accept connection error\n");  
           continue;  
         }  
70    
71        strcpy (hostaddr_client, (const char *)inet_ntoa(sin.sin_addr));        timeout.tv_sec = 1;
72        port_client = ntohs(sin.sin_port);        timeout.tv_usec = 0;
73    
74        log_std ("Accept connection from %s:%d\n", hostaddr_client, port_client);        result = SignalSafeSelect (FD_SETSIZE, &testfds, NULL, NULL, &timeout);
75                if (result < 0)
76        if (fork_server()<0)           {
77          {             log_error ("Accept connection error\n");
78            log_error ("Fork error\n");             continue;
79          }           }
80          
81        if (close(socket_client) == -1)        if (result == 0)
82             {
83               continue;
84             }
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)    if (close (socket_server) == -1)
126      {      {
127        log_error("Close server socket failed\n");        log_error ("Close server socket failed\n");
128      }      }
129    
130    return 0;    return 0;

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