mux/src/tools/announce.c File Reference

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <netinet/in.h>
#include <netdb.h>
#include <signal.h>
#include <stdio.h>
#include <ctype.h>

Include dependency graph for announce.c:

Go to the source code of this file.

Defines
#define	PORT   2860
Functions
int	main (int argc, char *argv[])
Variables
char *	Name
char	msg [8192]
size_t	nmsg

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Define Documentation

#define PORT   2860

Definition at line 12 of file announce.c.

Referenced by main().

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Function Documentation

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 29 of file announce.c.

References msg, Name, nmsg, and PORT.

{
    int    s;
    int    ns;
    int    foo;
    static struct sockaddr_in sin = {AF_INET};
    char   *host;
    char   *inet_ntoa();
    long   ct;
    int    ch;
    char   *p;
    int    opt;

    // Save program name for error messages.
    //
    Name = argv[0];

    // Assume PORT, but let command-line override.
    //
    sin.sin_port = htons((u_short) PORT);
    argc--;
    argv++;
    if (argc > 0)
    {
        // unless specified on command-line.
        //
        sin.sin_port = atoi(*argv);
        sin.sin_port = htons((u_short) sin.sin_port);
    }

    // Read in message and translate CRLF/NL to something reasonable.
    //
    p = msg;
    while (  (ch = getchar()) != EOF
          && p + 2 < msg + sizeof(msg))
    {
        if (ch != '\r')
        {
            if (ch == '\n')
            {
                *p++ = '\r';
            }
            *p++ = ch;
        }
    }
    *p = '\0';
    nmsg = p - msg;

    signal(SIGHUP, SIG_IGN);
    s = socket(AF_INET, SOCK_STREAM, 0);
    if (s < 0)
    {
        perror("announce: socket");
        exit(1);
    }
    opt = 1;
    if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(opt)) < 0)
    {   
        perror("setsockopt");
    }
    if (bind(s, (struct sockaddr *)&sin, sizeof sin) < 0)
    {
        perror("bind");
        exit(1);
    }
    if ((foo = fork()) != 0)
    {
        fprintf(stderr, "announce: pid %d running on port %d\n", foo,
                ntohs((u_short) sin.sin_port));
        _exit(0);
    }
    else
    {
        setpriority(PRIO_PROCESS, getpid(), 10);
    }
    if (listen(s, 1) < 0)
    {
        // start listening on port.
        //
        perror("announce: listen");
        _exit(1);
    }
    foo = sizeof sin;
    for (;;)
    {
        // loop forever, accepting requests & printing msg.
        //
        ns = accept(s, (struct sockaddr *)&sin, &foo);
        if (ns < 0)
        {
            perror("announce: accept");
            _exit(1);
        }
        host = inet_ntoa(sin.sin_addr);
        ct = time(0L);
        fprintf(stderr, "CONNECTION made from %s at %s",
                host, ctime(&ct));
        write(ns, msg, nmsg);
        sleep(5);
        close(ns);
    }
}

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Variable Documentation

char msg[8192]

Definition at line 26 of file announce.c.

Referenced by do_chopen(), do_comwho_line(), do_edit_msg(), do_prog(), and main().

char* Name

Definition at line 25 of file announce.c.

Referenced by announce_connect(), announce_disconnect(), check_dead_refs(), check_floating(), CGuests::Create(), create_obj(), db_write_object(), debug_examine(), destroy_obj(), destroy_player(), dflt_from_msg(), did_it(), do_boot(), do_chown(), do_clone(), do_create(), do_decomp(), do_drop(), do_entrances(), do_examine(), do_fixdb(), do_get(), do_icmd(), do_inventory(), do_kill(), do_link(), do_mail_debug(), do_mail_fwd(), do_mail_list(), do_mail_nuke(), do_mail_proof(), do_mail_read(), do_mail_reply(), do_mail_review(), do_mail_stats(), do_malias_adminlist(), do_malias_list(), do_malias_list_all(), do_move(), do_name(), do_newpassword(), do_restart(), do_shutdown(), do_toad(), do_use(), dump_users(), find_connected_name(), FUNCTION(), give_money(), give_thing(), handle_ears(), CGuests::ListAll(), load_player_names(), log_name(), log_type_and_name(), look_contents(), look_exits(), main(), make_namelist(), mem_usage(), Moniker(), mux_exec(), notify_check(), process_command(), process_enter_loc(), process_leave_loc(), send_mail(), show_quota(), shutdownsock(), sweep_check(), tcache_finish(), unparse_boolexp1(), and unparse_object_numonly().

size_t nmsg

Definition at line 27 of file announce.c.

Referenced by main().

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