2012-02-25

最初のWebサーバーを保存せよ

Help save the worlds first webserver. We need to track down a copy of the original tarball WWWDaemon_0.1.tar.Z to preserve in the annals of history. [x-post] : compsci

1991年8月20日、Tim Berners-Leeはcomp.sys.next.announceに対して、歴史に残る告知を投稿した。「info.cern.chから、WorldWideWebアプリケーションのアルファ版リリースをソースコードとバイナリの両方で公開する」
この投稿は、以下の三つのソフトウェアを示し、我々が今知る、いわゆるインターネッツを開始したのだ。

/pub/WWWNeXTStepEditor_0.12.tar.Z NeXT application + sources
/pub/WWWLineMode_0.11.tar.Z    Portable Line Mode Browser
/pub/WWWDaemon_0.1.tar.Z     Simple server

エディターとブラウザーは、多くのサイトで保存されている。例えばここだ。しかし、最初のWebサーバーは、どこにも見当たらない。これは憂慮すべき事態である。公開アクセスできるFPSサーバーを大量に漁った末、容易に入手できる中でもっとも初期の版は、v 2.08bである(apacheとw3.rogの両方の公開FTPにコピーが置いてある)。しかし、これ以前のものは見当たらない。

Redditターよ。汝ら猫を救い、政府と戦い、正義を守り続けてきた(あと他にも下らないことたくさんしてるけどな)。この歴史的に重要な財産を守り、もって次の世代に伝えよ。

追記:Henrik Frystyk Nielsen、WWWの最初のコントリビューターも参加した。
https://twitter.com/#!/frystyk/status/173128770763501568

追記2:Timのw3.orgのアドレスにメール送ってみた。でも多分、「インターネット早くしてよ!」ってなメールに埋もれてしまうだろうけど。

これは非常に興味深い問題である。もし歴史家が、インターネットの歴史について研究する場合、当然、最初のWebサーバーのソースコードの改良具合を順々に検証できる必要がある。しかるに、たったの21年しか立っていない今、その最初のオリジナルのソースコードが見つからないとは脅威だ。堂々と公開されていたはずなのに存在しないのだ。いわんや著作権とDRMで保存を妨害しているコンテンツをや。

そろそろ、我々は将来のために、文化的財産を保存する方法を真剣に考えるべきだ。さもなければ、将来の歴史家は海賊たちに感謝することになる。

参考:本の虫: なぜ歴史には海賊が必要なのか

追記:なんと見つかったそうだ。しかし、utilities.hがないのでコンパイルできないそうだ。どうもコメントから察するに、何らかのマクロを定義したヘッダのようだが。実際にコンパイルしていないので、どこで引っかかるのかわからないが、コードからどんなマクロなのか推測できそうなものである。

/*  TCP/IP based server for HyperText   TCPServer.c
**  ---------------------------------
**
**  History:
** 2 Oct 90 Written TBL. Include filenames for VM from RTB.
*/
/* Module parameters:
** -----------------
**
**  These may be undefined and redefined by syspec.h
*/
 
#define LISTEN_BACKLOG 2 /* Number of pending connect requests (TCP)*/
#define MAX_CHANNELS 20  /* Number of channels we will keep open */
#define BUFFER_SIZE 4096 /* Arbitrary size for efficiency */
 
#define WILDCARD '*'     /* Wildcard used in addressing */
 
#define NETCLOSE close     /* Routine to close a TCP-IP socket  */
#define NETREAD  read     /* Routine to read from a TCP-IP socket */
#define NETWRITE write     /* Routine to write to a TCP-IP socket */
 
#define FIRST_TCP_PORT 5000 /* When using dynamic allocation */
#define LAST_TCP_PORT 5999
 
#ifdef NeXT
#define SELECT   /* Handle >1 channel if we can.  */
#include <libc.h>  /* NeXT has all this packaged up */
#define ntohs(x) (x)
#define htons(x) (x)
#include <streams/streams.h>
 
#else
#include <stdio.h>
/* VM doesn't have a built-in predefined token, so we cheat: */
#ifdef __STDIO__
#define VM
#else
#include <string.h>  /* For bzero etc - not NeXT or VM */
#endif
#define SELECT   /* Handle >1 channel if we can.  */
#endif
 
 
#ifndef VM
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>     /* Must be after netinet/in.h */
#include <netdb.h>
#include <errno.h>     /* independent */
#include <sys/time.h>     /* independent */
#define TOASCII(c) (c)
#define FROMASCII(c) (c)                                   
 
#else    /* VM */
#include <manifest.h>                                                           
#include <bsdtypes.h>                                                           
#include <stdefs.h>                                                             
#include <socket.h>                                                             
#include <in.h>
#include <netdb.h>                                                                 
#include <errno.h>     /* independent */
extern char asciitoebcdic[], ebcdictoascii[];
#define TOASCII(c)   (c=='\n' ?  10  : ebcdictoascii[c])
#define FROMASCII(c) (c== 10  ? '\n' : asciitoebcdic[c])                                   
#include <bsdtime.h>                                                            
#define index(a,b) my_index(a,b) /* Why index() doesn't work I don't know  */
#endif
 
#include "utilities.h"  /* Coding convention macros */
 
/* Default macros for manipulating masks for select()
*/
#ifndef FD_SET
typedef unsigned int fd_set;
#define FD_SET(fd,pmask) (*(pmask)) |=  (1<<(fd))
#define FD_CLR(fd,pmask) (*(pmask)) &= ~(1<<(fd))
#define FD_ZERO(pmask)   (*(pmask))=0
#define FD_ISSET(fd,pmask) (*(pmask) & (1<<(fd)))
#endif
 
 
 
 
/* Module-Global Variables
** -----------------------
*/
PRIVATE enum role_enum {master, slave, transient, passive} role;
PRIVATE struct sockaddr_in  soc_address;  /* See netinet/in.h    */
PRIVATE int      soc_addrlen;
PRIVATE int      master_soc;   /* inet socket number to listen on */
PRIVATE int      com_soc;   /* inet socket number to read on */
PRIVATE fd_set      open_sockets; /* Mask of channels which are active */
PRIVATE int      num_sockets;  /* Number of sockets to scan */
PRIVATE BOOLEAN      dynamic_allocation; /* Search for port? */
PRIVATE char      buffer[BUFFER_SIZE];
 
/* Find character within string
**
** See the ANSI definition of index()
*/
#ifdef VM
char * my_index(char *s, char c)
{
    char *p;
    for(p=s; *p && (*p!=c); p++) /*scan */ ;
    return *p ? p : 0;
}
#endif
 
 
/*  Read a file
**  -----------
**
** The function reads a file from the given file POINTER
** into the given file DESCRIPTOR!
**
** On exit,
** returns  0 for end of file, <0 for error.
*/
PRIVATE int read_file(int dest, FILE * source)
{
   unsigned char * status;
   for(;;) {
       status = fgets(buffer, BUFFER_SIZE, source);
       if (!status) return -1;
       (void) write(dest, buffer, status);
   }
}
 
 
/* Strip white space off a string
**
** On exit,
** Return value points to first non-white character, or to 0 if none.
** All trailing white space is overwritten with zero.
*/
PRIVATE char * strip(char * s)
{
#define SPACE(c) ((c==' ')||(c=='\t')||(c=='\n')) 
    char * p=s;
    for(p=s;*p;p++);          /* Find end of string */
    for(p--;p>=s;p--) {
     if(SPACE(*p)) *p=0; /* Zap trailing blanks */
 else break;
    }
    while(SPACE(*s))s++; /* Strip leading blanks */
    return s;
}
 
/* Send a string down a socket
** ---------------------------
**
** The trailing zero is not sent.
** There is a maximum string length.
*/
PRIVATE int write_ascii(int soc, char * s)
{
    char * p;
    char ascii[255];
    char *q = ascii;
    for (p=s; *p; p++) {
        *q++ = TOASCII(*p);
    }
    return write(soc, ascii, p-s);
}
 
/* Handle one message
** ------------------
**
** On entry,
** soc  A file descriptor for input and output.
** On exit,
** returns  >0 Channel is still open.
**   0 End of file was found, please close file
**   <0 Error found, please close file.
*/
int handle(int soc)
{
#define COMMAND_SIZE 255
#define MAX_LINES 10000   /* Maximum number of lines returned */
    char command[COMMAND_SIZE+1];
    int status;
    char * arg;  /* Pointer to the argument string */
    char * filename; /* Pointer to filename or group list*/
    char * keywords; /* pointer to keywords */
    char system_command[COMMAND_SIZE+1];
    int lines, i;
    int fd;  /* File descriptor number */
   
    for (;;) {
 status = read(soc, command, COMMAND_SIZE);
 if (status<=0) {
     if (TRACE) printf("read returned %i, errno=%i\n", status, errno);
     return status; /* Return and close file */
 }
 command[status]=0; /* terminate the string */
#ifdef VM
 {
     char * p;
     for (p=command; *p; p++) {
  *p = FROMASCII(*p);
  if (*p == '\n') *p = ' ';
     }
 }
#endif
 if (TRACE) printf("read string is `%s'\n", command);
 
 arg=index(command,' ');
 if (arg) {
     *arg++ = 0;    /* Terminate command & move on */
     arg = strip(arg);   /* Strip leading & trailing space */
     if (0==strcmp("GET", command)) { /* Get a file    */
 
/*  Remove host and any punctuation. (Could use HTParse to remove access too @)
*/      
  filename = arg;
  if (arg[0]=='/') {
      if (arg[1]=='/') {
          filename = index(arg+2, '/'); /* Skip //host/ */
   if (!filename) filename=arg+strlen(arg);
      } else {
          filename = arg+1;  /* Assume root: skip slash */
      }
  }
 
  if (*filename) {  /* (else return test message)  */
      keywords=index(filename, '?');
      if (keywords) *keywords++=0; /* Split into two */
#ifdef VM
 
/* Formats supported by FIND are:
**
** /FIND    Help for find general index
** /FIND/    (same)
** /FIND/?    (same)
** /FIND/group.disk.ft.fn  Get a document from a disk
** /FIND/grouplist?  Help for group index
** /FIND/grouplist?keylist  Search a set of disks for keywords
**     where grouplist = group+group+group.. or void
**     keylist = key+key+key... (not void)
*/
      if((0==strncmp(filename,"FIND",4)) &&
         ((filename[4]==0) || (filename[4]=='/') || (filename[4]='?'))) {
      
          filename=filename+4;
   if (*filename=='/') filename++;  /* Skip first slash */
    
   if (!*filename) {  /* If no data at all,    */
       if (!keywords)
        keywords = filename; /* Respond as if just "?" given */   
   }
    
   if (keywords) {
       char *p;
       while((p=index(filename,'+'))!=0) *p=' ';/* Remove +s */
       while((p=index(keywords,'+'))!=0) *p=' ';/* Remove +s */
       
       if (!*keywords) { /* If no keywords    */
    write_ascii(soc,
    "<IsIndex><TITLE>Keyword Index</TITLE>\n");
    if (*filename) {
        write_ascii(soc, "This index covers groups: `");
        write_ascii(soc, filename);
    } else {
            write_ascii(soc,
            "This is the general CERN public document index");
    }
    write_ascii(soc,
  ".<P>Use a keyword search to get documents, help files, etc.<P>\n");
    return 0;
       }
    
       strcpy(system_command,"EXEC NICFIND1 ");
       strcat(system_command, keywords);
       if (*filename) {
    strcat(system_command, " ( ");
    strcat(system_command, filename);
       }
   } else {
       strcpy(system_command,"EXEC NICFOUN1 ");
       strcat(system_command, filename);
   }
   
   lines = system(system_command);
   if (TRACE) printf("Command `%s' returned %i lines.\n",
     system_command, lines);
   if (lines<=0) {
       write_ascii(soc,
       "\nSorry, the FIND server could not execute\n  `");
       write_ascii(soc, system_command);
       write_ascii(soc, "'\n\n");
       return 0;
   }
   
   /* Copy the file across: */
   
   for(;lines; lines--){  /* Speed necessary here */
       char *p;
       fgets(buffer, BUFFER_SIZE, stdin);
  /*     if (strcmp(buffer,"<END_OF_FILE>")==0) break; */
       for(p=buffer; *p; p++) *p = TOASCII(*p);
       write(soc, buffer, p-buffer);
   }
   return 0;
   
      }  /* if FIND */
#else
      fd = open(arg, O_RDONLY, 0 ); /* un*x open @@ */
      if (fd<0) return fd;
      status = read_file(soc, fd);
      close(fd);
      return 0;
#endif
  }
     } 
 }
 
 write_ascii(soc, "<h1>Small network access test v1.01</h1>\n");
 write_ascii(soc, "\n\nThe (unrecognised) command used was `");
 write_ascii(soc, command);
 write_ascii(soc, "'.\n\n");
 
 if (TRACE) printf("Return test string written back'\n");
 return 0;  /* End of file - please close socket */
    } /* for */
    
} /* handle */
 
/*_____________________________________________________________________________________
*/
/* Encode INET status (as in sys/errno.h)      inet_status()
** ------------------
**
** On entry,
** where  gives a description of what caused the error
** global errno gives the error number in the unix way.
**
** On return,
** returns  a negative status in the unix way.
*/
#ifdef vms
extern int uerrno; /* Deposit of error info (as perr errno.h) */
extern int vmserrno; /* Deposit of VMS error info */
extern volatile noshare int errno;  /* noshare to avoid PSECT conflict */
#else
#ifndef errno
extern int errno;
#endif
#endif
PRIVATE int inet_status(where)
    char    *where;
{
    CTRACE(tfp, "TCP: Error %d in `errno' after call to %s() failed.\n",
     errno,  where);
#ifdef vms
    CTRACE(tfp, "         Unix error number (uerrno) = %ld dec\n", uerrno);
    CTRACE(tfp, "         VMS error (vmserrno)       = %lx hex\n", vmserrno);
#endif
    return -errno;
}
 
 
/* Parse a cardinal value            parse_cardinal()
** ----------------------
**
** On entry,
** *pp     points to first character to be interpreted, terminated by
**      non 0:9 character.
** *pstatus    points to status already valid
** maxvalue    gives the largest allowable value.
**
** On exit,
** *pp     points to first unread character
** *pstatus    points to status updated iff bad
*/
PRIVATE unsigned int parse_cardinal(pstatus, pp, max_value)
   int   *pstatus;
   char   **pp;
   unsigned int  max_value;
{
    int   n;
    if ( (**pp<'0') || (**pp>'9')) {     /* Null string is error */
 *pstatus = -3;  /* No number where one expeceted */
 return 0;
    }
 
    n=0;
    while ((**pp>='0') && (**pp<='9')) n = n*10 + *((*pp)++) - '0';
 
    if (n>max_value) {
 *pstatus = -4;  /* Cardinal outside range */
 return 0;
    }
 
    return n;
}
/*  Bind to a TCP port
**  ------------------
**
** On entry,
** tsap is a string explaining where to take data from.
**  ""  means data is taken from stdin.
**  "*:1729" means "listen to anyone on port 1729"
**
** On exit,
** returns  Negative value if error.
*/
int do_bind(const char * tsap)
{
 
    FD_ZERO(&open_sockets); /* Clear our record of open sockets */
    num_sockets = 0;
    
/*  Deal with PASSIVE socket:
**
** A passive TSAP is one which has been created by the inet daemon.
** It is indicated by a void TSAP name.  In this case, the inet
** daemon has started this process and given it, as stdin, the connection
** which it is to use.
*/
    if (*tsap == 0) {   /* void tsap => passive */
 
 dynamic_allocation = FALSE;  /* not dynamically allocated */
 role = passive; /* Passive: started by daemon */
 
#ifdef vms
 {   unsigned short channel;     /* VMS I/O channel */
     struct string_descriptor {     /* This is NOT a proper descriptor*/
      int size;      /*  but it will work.       */
      char *ptr;      /* Should be word,byte,byte,long  */
     } sys_input = {10, "SYS$INPUT:"};
     int status;      /* Returned status of assign */
     extern int sys$assign();
 
     status = sys$assign(&sys_input, &channel, 0, 0);
     com_soc = channel; /* The channel is stdin */
     CTRACE(tfp, "IP: Opened PASSIVE socket %d\n", channel);
     return -BAD(status);
 } 
#else
 com_soc = 0;     /* The channel is stdin */
 CTRACE(tfp, "IP: PASSIVE socket 0 assumed from inet daemon\n");
 return 0;  /* Good */
#endif
 
/*  Parse the name (if not PASSIVE)
*/
    } else {    /* Non-void TSAP */
 char *p;  /* pointer to string */
 char *q;
 struct hostent  *phost;     /* Pointer to host - See netdb.h */
 char buffer[256];  /* One we can play with */
 register struct sockaddr_in* sin = &soc_address;
 
 strcpy(buffer, tsap);
 p = buffer;
 
/*  Set up defaults:
*/
 sin->sin_family = AF_INET;     /* Family = internet, host order  */
 sin->sin_port = 0;      /* Default: new port,    */
 dynamic_allocation = TRUE;     /*  dynamically allocated */
 role = passive;       /*  by default */
 
/*  Check for special characters:
*/
 if (*p == WILDCARD) {  /* Any node */
     role = master;
     p++;
 }
 
/*  Strip off trailing port number if any:
*/
 for(q=p; *q; q++)
     if (*q==':') {
         int status;
  *q++ = 0;  /* Terminate node string */
  sin->sin_port = htons((unsigned short)parse_cardinal(
         &status, &q, (unsigned int)65535));
  if (status<0) return status;
  
  if (*q) return -2;  /* Junk follows port number */
  dynamic_allocation = FALSE;
  break;     /* Exit for loop before we skip the zero */
     } /*if*/
 
/* Get node name:
*/
 if (*p == 0) {
     sin->sin_addr.s_addr = INADDR_ANY; /* Default: any address */
 
 } else if (*p>='0' && *p<='9') {   /* Numeric node address: */
     sin->sin_addr.s_addr = inet_addr(p); /* See arpa/inet.h */
 
 } else {      /* Alphanumeric node name: */
     phost=gethostbyname(p); /* See netdb.h */
     if (!phost) {
  CTRACE(tfp, "IP: Can't find internet node name `%s'.\n",p);
  return inet_status("gethostbyname");  /* Fail? */
     }
     memcpy(&sin->sin_addr, phost->h_addr, phost->h_length);
 }
 
 CTRACE(tfp, 
     "TCP: Parsed address as port %4x, inet %d.%d.%d.%d\n",
      (unsigned int)ntohs(sin->sin_port),
      (int)*((unsigned char *)(&sin->sin_addr)+0),
      (int)*((unsigned char *)(&sin->sin_addr)+1),
      (int)*((unsigned char *)(&sin->sin_addr)+2),
      (int)*((unsigned char *)(&sin->sin_addr)+3));
 
    } /* scope of p */
 
 
/*  Master socket for server:
*/
    if (role == master) {
 
/*  Create internet socket
*/
 master_soc = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   
 if (master_soc<0)
     return inet_status("socket");
      
 CTRACE(tfp, "IP: Opened socket number %d\n", master_soc);
 
/*  If the port number was not specified, then we search for a free one.
*/
 if (dynamic_allocation) {
     unsigned short try;
     for (try=FIRST_TCP_PORT; try<=LAST_TCP_PORT; try++) { 
  soc_address.sin_port = htons(try);
  if (bind(master_soc,
   (struct sockaddr*)&soc_address, /* Cast to generic sockaddr */
   sizeof(soc_address)) == 0)
      break;
  if (try == LAST_TCP_PORT)
      return inet_status("bind");
     }
     CTRACE(tfp, "IP:  Bound to port %u.\n",
      ntohs(soc_address.sin_port));
 } else {     /* Port was specified */
     if (bind(master_soc,
       (struct sockaddr*)&soc_address, /* Case to generic address */
       sizeof(soc_address))<0)
  return inet_status("bind");
 }
 if (listen(master_soc, LISTEN_BACKLOG)<0)
     return inet_status("listen");
 
 CTRACE(tfp, "TCP: Master socket(), bind() and listen() all OK\n");
 FD_SET(master_soc, &open_sockets);
 if ((master_soc+1) > num_sockets) num_sockets=master_soc+1;
 
 return master_soc;
    } /* if master */
    
    return -1;  /* unimplemented role */
 
} /* do_bind */
 
 
/*      Handle incomming messages     do_action()
** -------------------------
**
** On entry:
**
**      timeout         -1 for infinite, 0 for poll, else in units of 10ms
**
** On exit,
** returns  The status of the operation, <0 if failed.
**
*/
#ifdef __STDC__
PRIVATE int do_action(void)
#else
PRIVATE int do_action()
#endif
{
    int tcp_status;  /* <0 if error, in general */
    int timeout = -1;  /* No timeout required but code exists */
    for(;;) {
 
/*  If it's a master socket, then find a slave:
*/
     if (role == master) {
#ifdef SELECT
     fd_set  read_chans;
     fd_set  write_chans;
     fd_set  except_chans;
     int   nfound;     /* Number of ready channels */
     struct timeval max_wait;   /* timeout in form for select() */
    
     FD_ZERO(&write_chans);     /* Clear the write mask */
     FD_ZERO(&except_chans);     /* Clear the exception mask */
 
/*  If timeout is required, the timeout structure is set up. Otherwise
**  (timeout<0) a zero is passed instead of a pointer to the struct timeval.
*/
     if (timeout>=0) {
  max_wait.tv_sec = timeout/100;
  max_wait.tv_usec = (timeout%100)*10000;
     }
    
     for (com_soc=-1; com_soc<0;) { /* Loop while connections keep coming */
    
  
/*  The read mask expresses interest in the master channel for incomming
**  connections) or any slave channel (for incomming messages).
*/
 
/*  Wait for incoming connection or message
*/
         read_chans = open_sockets;     /* Read on all active channels */
  if (TRACE) printf(
 "TcpAccess: Waiting for connection or message. (Mask=%x hex, max=%x hex).\n", 
    *(int *)(&read_chans), num_sockets);
  nfound=select(num_sockets, &read_chans,
      &write_chans, &except_chans,
      timeout >= 0 ? &max_wait : 0);
 
  if (nfound<0) return inet_status("accept");
  if (nfound==0) return 0; /* Timeout */
 
/*  If an incomming connection has arrived, accept the new socket:
*/
  if (FD_ISSET(master_soc, &read_chans)) {
    
   CTRACE(tfp, "TCP: New incomming connection:\n");
   tcp_status = accept(master_soc,
     (struct sockaddr *)&soc_address,
     &soc_addrlen);
   if (tcp_status<0)
       return inet_status("accept");
   CTRACE(tfp, "TCP: Accepted new socket %d\n",
       tcp_status);
   FD_SET(tcp_status, &open_sockets);
   if ((tcp_status+1) > num_sockets) num_sockets=tcp_status+1;
   nfound--;
    
  } /* end if new connection */
    
/*  If a message has arrived on one of the channels, take that channel:
*/
  if(nfound) {
   int i;
   for(i=0;;i++)
       if(FD_ISSET(i, &read_chans)) {
    if (TRACE) printf("Got new socket %i\n", i);
    com_soc = i;  /* Got one! */
    break;
       }
   
   break;   /* Found input socket com_soc */
  } /* if message waiting */
    
     } /* loop on event */
 
#else /* SELECT not supported */
    
     if (com_soc<0) { /* No slaves: must accept */
      CTRACE(tfp, "TCP: Waiting for incomming connection...\n");
      tcp_status = accept(master_soc,
        &rsoc->mdp.soc_tcp.soc_address,
        &rsoc->mdp.soc_tcp.soc_addrlen);
      if (tcp_status<0)
   return inet_status("accept");
      com_soc = tcp_status; /* socket number */
      CTRACE(tfp, "TCP: Accepted socket %d\n", tcp_status);
     } /* end if no slaves */
    
#endif
 
 }  /* end if master */
 
 
/* com_soc is now valid for read */
 
/*  Read the message now on whatever channel there is:
*/
        CTRACE(tfp,"TCP: Reading socket %d\n", com_soc);
 tcp_status=handle(com_soc);
 
 if(tcp_status<=0) {    /* EOF or error */
     if (tcp_status<0) {    /* error */
         CTRACE(tfp, "TCP: Error %i handling incomming message (errno=%i).\n",
    tcp_status, errno);
         /* DONT return inet_status("netread");  error */
     } else {
  CTRACE(tfp, "TCP: Socket %d disconnected by peer\n",
      com_soc);
            }
     if (role==master) {
  NETCLOSE(com_soc);
  FD_CLR(com_soc, &open_sockets);
     } else
#ifdef VM
  return -69;
  ;
#else
  return -ECONNRESET;
#endif
 } /* end if handler got EOF or error */
    
    }; /* for loop */
/*NOTREACHED*/
} /* end do_action */
 
 
/*  Main program
**  ------------
*/
int main(int arc, char*argv[])
{
    int status;
    
    status = do_bind("*:2784");
    if (status<0) {
     printf("Bad setup.\n");
 exit(status);
    }
    
    status = do_action();
    if (status<0) {
     printf("Error in server loop.\n");
 exit(status);
    }
    
    exit(0);
    return 0;  /* For gcc */
}
  

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