author | viric@llimona |
Fri, 16 Jun 2006 18:45:24 +0200 | |
changeset 62 | 39bf7ecd7b21 |
parent 61 | 4cd174a9b698 |
permissions | -rw-r--r-- |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
1 |
#include <unistd.h> // Per les crides a fitxer |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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2 |
#include <stdio.h> // Per l'I/O de stdin/stdout |
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The tcp server listen() started working. By now the connections are closed at once.
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3 |
#include <errno.h> // Pels errors de les crides a fitxer |
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The tcp server listen() started working. By now the connections are closed at once.
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4 |
#include <string.h> // Per strerror() |
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The tcp server listen() started working. By now the connections are closed at once.
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5 |
#include <stdlib.h> // Per abort() |
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The tcp server listen() started working. By now the connections are closed at once.
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6 |
#include <fcntl.h> // Per fcntl() |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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7 |
#include <netinet/in.h> |
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The tcp server listen() started working. By now the connections are closed at once.
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8 |
#include <arpa/inet.h> |
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The tcp server listen() started working. By now the connections are closed at once.
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9 |
#include <stdbool.h> |
52
3af277b9f73b
Removed the signal handler for the TCP server.
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diff
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10 |
#include <signal.h> |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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11 |
#include <assert.h> // Per assert() |
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The tcp server listen() started working. By now the connections are closed at once.
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12 |
#include <sys/select.h> // Pel select() |
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The tcp server listen() started working. By now the connections are closed at once.
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13 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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14 |
#include "syslog.h" |
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The tcp server listen() started working. By now the connections are closed at once.
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15 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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16 |
/* Prototypes */ |
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The tcp server listen() started working. By now the connections are closed at once.
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17 |
static void listen_tcp(const int port, const bool ipv6enabled); |
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The tcp server listen() started working. By now the connections are closed at once.
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18 |
static int listen_tcp_ipv6(int port); |
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The tcp server listen() started working. By now the connections are closed at once.
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19 |
static int listen_tcp_ipv4(int port); |
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The tcp server listen() started working. By now the connections are closed at once.
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20 |
static int accept_connection(int socket); |
55 | 21 |
static int sendlog(const int socket); |
51
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The tcp server listen() started working. By now the connections are closed at once.
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22 |
|
55 | 23 |
/* Globals */ |
24 |
static int tcp_server_pid = 0; |
|
25 |
||
26 |
/* Code */ |
|
51
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The tcp server listen() started working. By now the connections are closed at once.
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27 |
/* Returns 0 on success. Returns -1 on error. */ |
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The tcp server listen() started working. By now the connections are closed at once.
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28 |
int init_tcp_server() |
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The tcp server listen() started working. By now the connections are closed at once.
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29 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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30 |
int pid; |
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The tcp server listen() started working. By now the connections are closed at once.
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31 |
int port; |
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The tcp server listen() started working. By now the connections are closed at once.
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32 |
char service[MAX_STRING]; |
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The tcp server listen() started working. By now the connections are closed at once.
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33 |
enum { |
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The tcp server listen() started working. By now the connections are closed at once.
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34 |
SUCCESS=0, |
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The tcp server listen() started working. By now the connections are closed at once.
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35 |
ERROR=-1, |
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The tcp server listen() started working. By now the connections are closed at once.
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36 |
DISABLED=-2 |
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The tcp server listen() started working. By now the connections are closed at once.
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37 |
} ret; |
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The tcp server listen() started working. By now the connections are closed at once.
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38 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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39 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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40 |
/* Get the configuration */ |
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The tcp server listen() started working. By now the connections are closed at once.
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41 |
get_config(TCP_MANAGER, service, MAX_STRING); |
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The tcp server listen() started working. By now the connections are closed at once.
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42 |
if (strncmp(service, "disabled", MAX_STRING) == 0) |
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The tcp server listen() started working. By now the connections are closed at once.
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43 |
return DISABLED; |
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The tcp server listen() started working. By now the connections are closed at once.
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44 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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45 |
/* Check the configuration */ |
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The tcp server listen() started working. By now the connections are closed at once.
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46 |
port = atoi(service); |
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The tcp server listen() started working. By now the connections are closed at once.
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47 |
if (port < -65535 || port > 65535) |
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The tcp server listen() started working. By now the connections are closed at once.
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48 |
return ERROR; |
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The tcp server listen() started working. By now the connections are closed at once.
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49 |
|
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The tcp server listen() started working. By now the connections are closed at once.
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50 |
/* Create the server process */ |
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The tcp server listen() started working. By now the connections are closed at once.
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51 |
pid = child_fork(); |
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The tcp server listen() started working. By now the connections are closed at once.
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52 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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53 |
if (pid == 0) |
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The tcp server listen() started working. By now the connections are closed at once.
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54 |
{ |
52
3af277b9f73b
Removed the signal handler for the TCP server.
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diff
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55 |
program_child_handler(SIG_DFL); |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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56 |
/* Child */ |
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The tcp server listen() started working. By now the connections are closed at once.
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57 |
close(0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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58 |
close(1); |
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The tcp server listen() started working. By now the connections are closed at once.
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59 |
//close(2); |
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The tcp server listen() started working. By now the connections are closed at once.
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|
60 |
if(port < 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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61 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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62 |
listen_tcp(-port, true); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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63 |
} else |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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64 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
65 |
listen_tcp(port, false); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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66 |
} |
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The tcp server listen() started working. By now the connections are closed at once.
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67 |
/* Should be Not reachable */ |
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The tcp server listen() started working. By now the connections are closed at once.
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|
68 |
exit(0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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69 |
} else if (pid > 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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70 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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71 |
/* Parent */ |
55 | 72 |
tcp_server_pid = pid; |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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73 |
fprintf(stderr, "Child forked (tcp server on port %i): %i\n", |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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74 |
port, pid); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
75 |
ret = SUCCESS; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
76 |
} else |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
77 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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|
78 |
ret = ERROR; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
79 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
80 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
81 |
return ret; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
82 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
83 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
84 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
85 |
static void listen_tcp(const int port, const bool ipv6enabled) |
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The tcp server listen() started working. By now the connections are closed at once.
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86 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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87 |
int socket_ipv6, socket_ipv4; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
88 |
fd_set listen_sockets; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
89 |
int result; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
90 |
int high_socket; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
91 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
92 |
socket_ipv4 = listen_tcp_ipv4(port); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
93 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
94 |
if (ipv6enabled) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
95 |
socket_ipv6 = listen_tcp_ipv6(port); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
96 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
97 |
/* Mirem quin és el socket més alt pel select() */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
98 |
high_socket = socket_ipv4; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
99 |
if (ipv6enabled && (high_socket < socket_ipv6) ) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
100 |
high_socket = socket_ipv6; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
101 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
102 |
high_socket += 1; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
103 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
104 |
result = 0; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
diff
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|
105 |
while (result >= 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
106 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
107 |
/* Establim els FDs que volem esperar al select() */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
108 |
FD_ZERO(&listen_sockets); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
diff
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|
109 |
if (ipv6enabled) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
diff
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|
110 |
FD_SET(socket_ipv6, &listen_sockets); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
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|
111 |
FD_SET(socket_ipv4, &listen_sockets); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
diff
changeset
|
112 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
113 |
result = select(high_socket, &listen_sockets, NULL, NULL, |
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The tcp server listen() started working. By now the connections are closed at once.
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|
114 |
NULL); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
diff
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|
115 |
if (result == 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
116 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
117 |
/* Això no hauria de passar, no tenim timeout fixat. */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
118 |
continue; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
119 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
120 |
else if (result == -1 && errno != EINTR) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
121 |
{ |
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The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
122 |
fprintf(stderr, "Error in select(): %s\n", |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
123 |
strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
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|
124 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
125 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
126 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
127 |
/* Algun FD té dades... */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
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|
128 |
if (FD_ISSET(socket_ipv4, &listen_sockets)) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
129 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
130 |
accept_connection(socket_ipv4); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
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|
131 |
} |
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The tcp server listen() started working. By now the connections are closed at once.
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parents:
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|
132 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
133 |
if (ipv6enabled && FD_ISSET(socket_ipv6, &listen_sockets)) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
134 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
135 |
accept_connection(socket_ipv6); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
136 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
137 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
138 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
139 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
140 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
141 |
static int listen_tcp_ipv6(int port) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
142 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
143 |
int socket_ipv6; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
144 |
struct sockaddr_in6 source_ipv6; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
145 |
int result; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
146 |
int on=1; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
147 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
148 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
149 |
socket_ipv6 = socket(PF_INET6, SOCK_STREAM, 0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
150 |
if (socket_ipv6 == -1) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
151 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
152 |
fprintf(stderr, "IPv6 socket failed.\n"); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
153 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
154 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
155 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
156 |
/* Fem que poguem reutilitzar l'adreça encara que no s'hagi acabat |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
157 |
el timeout després de tancar-se la connexió */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
158 |
if (setsockopt(socket_ipv6, SOL_SOCKET, SO_REUSEADDR, |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
159 |
(char *)&on,sizeof(on)) < 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
160 |
{ |
61
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
161 |
fprintf(stderr, "IPv6 setsockopt() failed for SO_REUSEADDR: %s.\n", |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
162 |
strerror(errno)); |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
163 |
abort(); |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
164 |
} |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
165 |
|
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
166 |
/* Es necessita per a que linux no fagi Bind del port IPv4 alhora */ |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
167 |
if (setsockopt(socket_ipv6, IPPROTO_IPV6, IPV6_V6ONLY, |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
168 |
(char *)&on,sizeof(on)) < 0) |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
169 |
{ |
4cd174a9b698
Added the setsockopt for IPV6_V6ONLY, in order to have IPv6 and IPv4 in two
viric@llimona
parents:
58
diff
changeset
|
170 |
fprintf(stderr, "IPv6 setsockopt() failed for IPV6_V6ONLY: %s.\n", |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
171 |
strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
172 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
173 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
174 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
175 |
/* No volem que aquest socket bloquegi. */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
176 |
if (fcntl(socket_ipv6, F_SETFL, O_NONBLOCK) == -1) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
177 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
178 |
fprintf(stderr, "IPv6 fcntl() failed: %s.\n", |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
179 |
strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
180 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
181 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
182 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
183 |
/* IPv6 listen address */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
184 |
memset(&source_ipv6, 0, sizeof(source_ipv6)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
185 |
source_ipv6.sin6_family = AF_INET6; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
186 |
source_ipv6.sin6_flowinfo = 0; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
187 |
source_ipv6.sin6_port = htons(port); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
188 |
source_ipv6.sin6_addr = in6addr_any; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
189 |
result = bind(socket_ipv6, (struct sockaddr *) &source_ipv6, |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
190 |
sizeof(source_ipv6)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
191 |
assert(result == 0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
192 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
193 |
result = listen(socket_ipv6, TCP_LISTEN_QUEUE); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
194 |
if (result != 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
195 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
196 |
fprintf(stderr,"Error in listen() ipv6: %s\n", strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
197 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
198 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
199 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
200 |
return socket_ipv6; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
201 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
202 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
203 |
static int listen_tcp_ipv4(int port) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
204 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
205 |
int socket_ipv4; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
206 |
struct sockaddr_in source_ipv4; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
207 |
int result; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
208 |
int on=1; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
209 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
210 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
211 |
socket_ipv4 = socket(PF_INET, SOCK_STREAM, 0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
212 |
if (socket_ipv4 == -1) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
213 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
214 |
fprintf(stderr, "IPv4 socket not supported.\n"); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
215 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
216 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
217 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
218 |
/* Fem que poguem reutilitzar l'adreça encara que no s'hagi acabat |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
219 |
el timeout després de tancar-se la connexió */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
220 |
if (setsockopt(socket_ipv4, SOL_SOCKET, SO_REUSEADDR, |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
221 |
(char *)&on,sizeof(on)) < 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
222 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
223 |
fprintf(stderr, "IPv4 setsockopt() failed: %s.\n", |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
224 |
strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
225 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
226 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
227 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
228 |
/* No volem que aquest socket bloquegi. */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
229 |
if (fcntl(socket_ipv4, F_SETFL, O_NONBLOCK) == -1) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
230 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
231 |
fprintf(stderr, "IPv6 fcntl() failed: %s.\n", |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
232 |
strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
233 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
234 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
235 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
236 |
/* IPv4 listen address */ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
237 |
memset(&source_ipv4, 0, sizeof(source_ipv4)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
238 |
source_ipv4.sin_family = AF_INET; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
239 |
source_ipv4.sin_port = htons(port); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
240 |
source_ipv4.sin_addr.s_addr = htonl(INADDR_ANY); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
241 |
result = bind(socket_ipv4, (struct sockaddr *) &source_ipv4, |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
242 |
sizeof(source_ipv4)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
243 |
assert(result == 0); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
244 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
245 |
result = listen(socket_ipv4, TCP_LISTEN_QUEUE); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
246 |
if (result != 0) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
247 |
{ |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
248 |
fprintf(stderr,"Error in listen() ipv4: %s\n", strerror(errno)); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
249 |
abort(); |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
250 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
251 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
252 |
return socket_ipv4; |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
253 |
} |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
254 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
viric@llimona
parents:
diff
changeset
|
255 |
|
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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256 |
static int accept_connection(int socket) |
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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257 |
{ |
52
3af277b9f73b
Removed the signal handler for the TCP server.
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|
258 |
int newsock, pid; |
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Removed the signal handler for the TCP server.
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|
259 |
|
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260 |
newsock = accept(socket, NULL, NULL); |
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|
261 |
if (newsock == -1) |
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Removed the signal handler for the TCP server.
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|
262 |
return 0; |
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Removed the signal handler for the TCP server.
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|
263 |
|
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Removed the signal handler for the TCP server.
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|
264 |
/* We don't use child_fork(), as it's only for the _main parent_ */ |
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Removed the signal handler for the TCP server.
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|
265 |
pid = fork(); |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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|
266 |
|
52
3af277b9f73b
Removed the signal handler for the TCP server.
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|
267 |
if (pid == 0) |
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Removed the signal handler for the TCP server.
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|
268 |
{ |
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Removed the signal handler for the TCP server.
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|
269 |
/* Child */ |
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|
270 |
close(socket); |
55 | 271 |
sendlog(newsock); |
52
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Removed the signal handler for the TCP server.
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|
272 |
close(newsock); |
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Removed the signal handler for the TCP server.
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|
273 |
exit(0); |
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Removed the signal handler for the TCP server.
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|
274 |
/* Unreachable */ |
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Removed the signal handler for the TCP server.
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|
275 |
} else if (pid > 0) |
3af277b9f73b
Removed the signal handler for the TCP server.
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|
276 |
{ |
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Removed the signal handler for the TCP server.
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|
277 |
/* Parent */ |
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Removed the signal handler for the TCP server.
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|
278 |
close(newsock); |
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Removed the signal handler for the TCP server.
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|
279 |
} |
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Removed the signal handler for the TCP server.
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|
280 |
else |
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Removed the signal handler for the TCP server.
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|
281 |
return -1; |
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Removed the signal handler for the TCP server.
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|
282 |
|
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Removed the signal handler for the TCP server.
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|
283 |
return 0; |
51
a01abd65856a
The tcp server listen() started working. By now the connections are closed at once.
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changeset
|
284 |
} |
55 | 285 |
|
286 |
/* Return -2 when the socket is not enabled. Otherwise, the output of close().*/ |
|
287 |
void close_out_tcp() |
|
288 |
{ |
|
289 |
if (tcp_server_pid != 0) |
|
290 |
{ |
|
291 |
fprintf(stderr,"close_out_tcp: Sending SIGTERM to %i\n", tcp_server_pid); |
|
292 |
kill(tcp_server_pid, SIGTERM); |
|
293 |
tcp_server_pid = 0; |
|
294 |
} |
|
295 |
return; |
|
296 |
} |
|
297 |
||
298 |
static int sendlog(const int socket) |
|
299 |
{ |
|
300 |
int fh; |
|
301 |
int bytes, res; |
|
302 |
enum config |
|
303 |
{ |
|
304 |
BUFFER_SIZE=500 |
|
305 |
}; |
|
306 |
char buffer[BUFFER_SIZE]; |
|
307 |
char *buffer2; |
|
308 |
char name[MAX_STRING]; |
|
309 |
||
58
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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diff
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|
310 |
if (get_config(LOG_FILE, name, MAX_STRING) < 0) |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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parents:
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diff
changeset
|
311 |
{ |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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parents:
56
diff
changeset
|
312 |
fprintf(stderr, "The tcp_server received a connection, but" |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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diff
changeset
|
313 |
" there isn't any log file."); |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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parents:
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diff
changeset
|
314 |
return -1; |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
315 |
} |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
316 |
|
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
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parents:
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diff
changeset
|
317 |
if (strncmp(name, "disabled", MAX_STRING) == 0) |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
318 |
{ |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
319 |
fprintf(stderr, "The tcp_server received a connection, but" |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
320 |
" there isn't any log file."); |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
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diff
changeset
|
321 |
return -1; |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
322 |
} |
c03287b2c3c1
Now the tcp_server handles well the situation where there isn't a log file.
viric@llimona
parents:
56
diff
changeset
|
323 |
|
55 | 324 |
|
56 | 325 |
fh = open(name, O_RDONLY); |
55 | 326 |
if (fh == -1) |
327 |
{ |
|
328 |
fprintf(stderr, "Error opening the log file for read: %s\n", |
|
329 |
strerror(errno)); |
|
330 |
return -1; |
|
331 |
} |
|
332 |
||
333 |
while((bytes = read(fh, buffer, BUFFER_SIZE)) > 0) |
|
334 |
{ |
|
335 |
buffer2 = buffer; |
|
336 |
while(bytes > 0) |
|
337 |
{ |
|
338 |
res = send(socket, buffer2, bytes, 0); |
|
339 |
if (res == 0) |
|
340 |
sleep(1); |
|
341 |
else if (res < 0) |
|
342 |
{ |
|
343 |
close(fh); |
|
344 |
return -1; |
|
345 |
} |
|
346 |
||
347 |
bytes = bytes - res; |
|
348 |
buffer2 = buffer2 + res; |
|
349 |
} |
|
350 |
} |
|
351 |
||
352 |
close(fh); |
|
353 |
return bytes; |
|
354 |
} |