Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!ukma!xanth!mcnc!rti!sunpix!matthew
From: matthew@sunpix.UUCP ( Sun Visualization Products)
Newsgroups: comp.sys.amiga
Subject: Re: C Help
Message-ID: <682@greens.UUCP>
Date: 6 Jul 89 20:52:31 GMT
References: <4552@crash.cts.com>
Organization: Sun Microsystems, Research Triangle Park, NC
Lines: 21

In article <4552@crash.cts.com>, news@crash.cts.com (Usenet News) writes:
> But if I were to send ATZ or ATDT5551212, nothing happens.
> 
>     sprintf(SendData,"%s\n\000",GetData);
>

  Notice the '\n' in the above line, is this being mapped to a Carriage Return
or Linefeed.  If its the latter, thats your problem.  Most Hayes modes (and
compatibles) expect commands to be carriage return terminated strings.  If
they are terminated by linefeeds, the modem is still waiting for more.  I know 
that a few people in the MS-DOS field got nabbed because MS-DOS termiantes 
strings with CRLF, and the the modem would start dialing and then suddenly 
stop. (While waiting for a connection, any input to one of these modems forces
it back to the "Wait for Command state").


-- 
Matthew Lee Stier                         |
Sun Microsystems ---  RTP, NC  27709-3447 |        "Wisconsin   Escapee"
uucp: { sun, mcnc!rti }!sunpix!matthew    |
phone: (919) 469-8300 fax: (919) 460-8355 |