[ale] Socket Programming

[ChrisF at computone.com (Chris Fowler)]

<SPAN 
class=746544717-05062001>Well,
<SPAN 
class=746544717-05062001>??
I 
compiled and ran under Cygwin.?? It yields same results!.?? Apparently 
I'm going to have to investigate internals.
<SPAN 
class=746544717-05062001>??
<SPAN 
class=746544717-05062001>Chris

  <FONT face=Tahoma 
  size=2>-----Original Message-----From: Bao C. Ha 
  [mailto:baoha at sensoria.com]Sent: Tuesday, June 05, 2001 11:53 
  AMTo: Chris FowlerCc: ale at ale.orgSubject: RE: 
  [ale] Socket Programming
  Have 
  you tried to open it with O_NOCTTY also?
  <SPAN 
  class=525445015-05062001>??
  open(argv[1], 
  O_RDWR | 
  O_NOCTTY)
  <SPAN 
  class=525445015-05062001>??
  <SPAN 
  class=525445015-05062001>It prevents a break to kill the session.?? It is 
  Unix thing and
  <SPAN 
  class=525445015-05062001>I don't know if it works with win32 or 
  not.
  <SPAN 
  class=525445015-05062001>??
  <SPAN 
  class=525445015-05062001>Bao
  <BLOCKQUOTE 
  style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">
    <FONT face=Tahoma 
    size=2>-----Original Message-----From: owner-ale at ale.org 
    [mailto:owner-ale at ale.org]On Behalf Of Chris FowlerSent: 
    Tuesday, June 05, 2001 8:36 AMTo: 'Vernard Martin'Cc: 
    'ale at ale.org'Subject: RE: [ale] Socket 
    Programming
    Vernard, 
    You know much about Win32 programming? 
    I need to sucessfully run this piece of UNIX OK code in 
    winbloze /* terminal.c <FONT 
    size=2>??* ??*?? Small program to allow 
    running of an excutable ??* <FONT 
    size=2>??*?? Arguments: <FONT 
    size=2>??*?????????? 
    ?????????????? argv[1]: PORT to be input and 
    output ??*?????????? 
    ?????????????? argv[2]: Console application to 
    execute on the serial port defined ??* 
    ??*/ ???? 
    #include <fcntl.h> <FONT 
    size=2>#include <stdio.h> 
    int main(int argc, char 
    *argv[]) { 
    ?????????????? 
    ?????????????? int fd; 
    ?????????????? 
    ?????????????? /* check arguments 
    */ ?????????????? 
    ?????????????? if(argc != 3) 
    ?????????????? 
    ?????????????? { 
    ?????????????? 
    ?????????????? 
    ?????????????? printf("terminal 
    [serial port] [command shell to execute]\n"); 
    ?????????????? 
    ?????????????? 
    ?????????????? exit(1); 
    ?????????????? 
    ?????????????? } 
    ?????????????? 
    ?????????????? 
    ?????????????? 
    ?????????????? /* Open Serial Port 
    */ ?????????????? 
    ?????????????? if((fd = 
    open(argv[1], O_RDWR)) == -1) 
    ?????????????? 
    ?????????????? { 
    ?????????????? 
    ?????????????? 
    ?????????????? perror("terminal: 
    OPEN COM"); ?????????????? 
    ?????????????? 
    ?????????????? exit(1); 
    ?????????????? 
    ?????????????? } 
    ?????????????? 
    ?????????????? 
    ?????????????? 
    ?????????????? /* Set STDIN, 
    STDOUT, STDERR to the serial port */ 
    ?????????????? 
    ?????????????? dup2(fd, 0); 
    ?????????????? 
    ?????????????? dup2(fd, 1); 
    ?????????????? 
    ?????????????? dup2(fd, 2); 
    
    ?????????????? 
    ?????????????? /* Execute the 
    command specified */ ?????????????? 
    ?????????????? <FONT 
    size=2>execl(argv[2],argv[2], 0); 
    ?????????????? 
    ?????????????? 
    ?????????????? 
    ?????????????? /* If we are here, 
    there is an issue! */ ?????????????? 
    ?????????????? <FONT 
    size=2>perror("terminal"); 
    ?????????????? 
    ?????????????? return 1; 
    } 
    What happens: 
    cmd.exe comes across COM1.?? But, on terminal, I can not 
    type anything and it appears that cmd.exe has 
    terminated.?? Sorry for the windows post. 
    Any help would be appreciated. 
    Thanks, Chris 
    -----Original Message----- From: 
    Vernard Martin [<A 
    href="mailto:vernard at cc.gatech.edu">mailto:vernard at cc.gatech.edu] 
    Sent: Tuesday, June 05, 2001 11:07 AM <FONT 
    size=2>To: Fulton Green Cc: Terry Lee Tucker; 
    ale at ale.org Subject: Re: [ale] Socket 
    Programming 
    > When I was learning sockets back in '98, I found the 
    book _Beginning Linux > Programming_ to be 
    invaluable for a quick start. Then I got the _UNIX <FONT 
    size=2>> Network Programming_ book by Richard Stevens to go more 
    in-depth. 
    By far the most in-depth book for doing any unix network 
    programming is the Stevens book. A must have book in 
    my library. 
    V -- Vernard 
    Martin (vernard at cc.gatech.edu) <A href="http://www.cc.gatech.edu/~vernard/"; 
    target=_blank>http://www.cc.gatech.edu/~vernard/???????? 
    ?????????????? "Anything 
    worth fighting over is worth fighting dirty over" <FONT 
    size=2>-- To unsubscribe: mail majordomo at ale.org 
    with "unsubscribe ale" in message body.