[LCP]Problem with GNU C sockets

[James McLean]

Hi All,

I have previously written a small IRC bot in perl to get a handle on 
perl sockets, which worked well and was easy to learn.

In an attempt to learn more about C, I am re-writing the same bot from 
scratch in C.

The basic C structure is not a problem, but I have been looking at the 
GNU C Sockets documentation to learn how to program the sockets, and 
borrowed the example outlined on the site.

I have struck a problem, which my be easy to fix, but also might not be.

I am writing the program on FreeBSD (hope that doesnt exclude me from 
this list...)

I think the problem lies in the way im calling my 'irc_connect()' 
function, as this is where the errors are generated from the compiler.

I have attached a uname output, gcc version, compiler errors and the 
program source. The program is not complete, just trying to get it to 
compile cleanly in the various steps along the way.

I would appreciate any pointers or tips as to where I am going wrong.

Cheers

Uname
-----
-bash-2.05b$ uname -a
FreeBSD wan-gw.lanpad.org 4.8-RELEASE FreeBSD 4.8-RELEASE #0: Sun Jul 20 
20:19:47 CST 2003 
jamesmc at wan-gw.lanpad.org:/usr/src/sys/compile/WIRELESSGW  i386

GCC Version.
------------
-bash-2.05b$ gcc -v
Using builtin specs.
gcc version 2.95.4 20020320 [FreeBSD]

Compile Errors
--------------
-bash-2.05b$ make ircbot
cc -O -pipe   ircbot.c  -o ircbot
In file included from ircbot.c:3:
/usr/include/sys/socket.h:52: syntax error before `sa_family_t'
/usr/include/sys/socket.h:52: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:163: syntax error before `u_char'
/usr/include/sys/socket.h:174: syntax error before `u_short'
/usr/include/sys/socket.h:188: syntax error before `u_char'
/usr/include/sys/socket.h:190: `int64_t' undeclared here (not in a function)
/usr/include/sys/socket.h:190: `u_char' undeclared here (not in a function)
/usr/include/sys/socket.h:190: size of array `__ss_pad1' is too large
/usr/include/sys/socket.h:191: syntax error before `int64_t'
/usr/include/sys/socket.h:192: `u_char' undeclared here (not in a function)
/usr/include/sys/socket.h:192: `int64_t' undeclared here (not in a function)
/usr/include/sys/socket.h:192: `u_char' undeclared here (not in a function)
/usr/include/sys/socket.h:192: `int64_t' undeclared here (not in a function)
/usr/include/sys/socket.h:359: syntax error before `pid_t'
/usr/include/sys/socket.h:364: syntax error before `gid_t'
/usr/include/sys/socket.h:399: syntax error before `u_short'
/usr/include/sys/socket.h:407: syntax error before `caddr_t'
/usr/include/sys/socket.h:411: syntax error before `caddr_t'
/usr/include/sys/socket.h:444: syntax error before `recv'
/usr/include/sys/socket.h:444: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:445: syntax error before `recvfrom'
/usr/include/sys/socket.h:445: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:446: syntax error before `recvmsg'
/usr/include/sys/socket.h:446: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:447: syntax error before `send'
/usr/include/sys/socket.h:447: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:448: syntax error before `sendto'
/usr/include/sys/socket.h:449: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:450: syntax error before `sendmsg'
/usr/include/sys/socket.h:450: warning: data definition has no type or 
storage class
/usr/include/sys/socket.h:451: syntax error before `off_t'
In file included from ircbot.c:4:
/usr/include/netinet/in.h:235: syntax error before `in_addr_t'
/usr/include/netinet/in.h:287: syntax error before `u_char'
In file included from /usr/include/netinet/in.h:469,
                  from ircbot.c:4:
/usr/include/netinet6/in6.h:122: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:144: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:149: syntax error before `u_int32_t'
/usr/include/netinet6/in6.h:612: syntax error before `*'
/usr/include/netinet6/in6.h:614: syntax error before `*'
/usr/include/netinet6/in6.h:614: warning: data definition has no type or 
storage class
/usr/include/netinet6/in6.h:615: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:616: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:631: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:636: syntax error before `u_int8_t'
/usr/include/netinet6/in6.h:638: syntax error before `u_int8_t'
ircbot.c:29: syntax error before `uint16_t'
ircbot.c: In function `irc_connect':
ircbot.c:33: `hostname' undeclared (first use in this function)
ircbot.c:33: (Each undeclared identifier is reported only once
ircbot.c:33: for each function it appears in.)
ircbot.c:33: `port' undeclared (first use in this function)
ircbot.c:35: `name' undeclared (first use in this function)
ircbot.c: In function `main':
ircbot.c:53: warning: initialization makes integer from pointer without 
a cast
*** Error code 1

Stop in /usr/home/jamesmc/src/ircbot.

Program Source.
---------------

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
 

/*
  * simple IRC bot.
  *
  */
 

void
intro (void) {
 

     static char intro[] =
     " \n"
     "SimpleBot - super simple IRC bot. \n"
     "Copyright 2003 James Mclean <james at lanpad.org> \n"
     "\n";
 

     printf("%s",intro);
 
 

}
 

void
irc_connect(struct sockaddr_in *name,
             const char *hostname,
             uint16_t port) {
 

     struct hostent *hostinfo;
 

     printf("Connecting to %s:%s... \n",hostname,port);
 

     name->sin_family = AF_INET;
     name->sin_port = htons (port);
     hostinfo = gethostbyname (hostname);
     if (hostinfo == NULL) {
       fprintf (stderr, "Unknown host %s.\n", hostname);
       exit (EXIT_FAILURE);
     }
 

     name->sin_addr = *(struct in_addr *) hostinfo->h_addr;
 

}

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

     char BOTNAME[16]    = "fred";
     char SERVERNAME[32] = "irc.enterthegame.com";
     int  SERVERPORT     = "6667";
 

     intro();
 

     printf("Initialising %s... \n",BOTNAME);
 

     irc_connect(SERVERNAME,SERVERNAME,SERVERPORT);
 

     /*
      * supply name and connection details here
      */
 

     for(;;) { /* infinite loop */
 

 

     }
 

     return 0;
}