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Re: lynx-dev How do I debug a HPUX/Lynx problem?
From: |
T.E.Dickey |
Subject: |
Re: lynx-dev How do I debug a HPUX/Lynx problem? |
Date: |
Thu, 25 Nov 1999 11:12:51 -0500 (EST) |
> We've been using Lynx from our application for several years, and now that
> we're trying to move to HPUX11 (from HPUX10.20) we find that lynx no longer
> works when called from "inside" our application. Lynx runs fine on HPUX11
> from a shell, but not when called with "system" from our application.
> There are three symptoms:
> 1) Arrow keys no longer work
> 2) To quit from lynx requires a 'q' AND a carriage return).
Perhaps there's some problem with the connection to the terminal when
run from system(), i.e., stdin/stdout are redirected. (I'm not sure:
I can think of some problems where your application's terminal modes
would not be restored properly, but offhand none where the subprocess
would not initialize them properly).
> 3) If the page being viewed is large, you cannot move to the next page by
> pressing "space".
>
> It acts as though lynx is not getting into "raw" mode.
> I've run stty -a from the shell and from lynx, and find the later has
> c_cc[VMIN]=4,
> I've tried setting this to 1 before I call lynx, but it did not appear to
> help.
>
> Any ideas how I'd go about debugging this?
> I've made a pass at RTFM, but obviously not enough :-)
>
> Thanks in advance.
>
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> Content-Type: text/html;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> <HTML><HEAD>
> <META content=3D"text/html; charset=3Diso-8859-1" =
> http-equiv=3DContent-Type>
> <META content=3D"MSHTML 5.00.2722.2800" name=3DGENERATOR></HEAD>
> <BODY bgColor=3D#ffffff>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>We've =
> been using=20
> Lynx from our application for several years, and now that we're trying =
> to move=20
> to HPUX11 (from HPUX10.20) we find that lynx no longer works when called =
> from=20
> "inside" our application. </SPAN></FONT><FONT face=3DArial =
> size=3D2><SPAN=20
> class=3D640414518-24111999>Lynx runs fine on HPUX11 from a shell, but =
> not when=20
> called with "system" from our application.</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>There =
> are three=20
> symptoms:</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>1) =
> Arrow keys no=20
> longer work</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN =
> class=3D640414518-24111999>2) To quit from=20
> lynx requires a 'q' AND a carriage return).</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>3) If =
> the page being=20
> viewed is large, you cannot move to the next page by pressing=20
> "space".</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN=20
> class=3D640414518-24111999></SPAN></FONT> </DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>It =
> acts as though=20
> lynx is not getting into "raw" mode.</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>I've =
> run stty -a=20
> from the shell and from lynx, and find the later has=20
> c_cc[VMIN]=3D4,</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>I've =
> tried setting=20
> this to 1 before I call lynx, but it did not appear to =
> help.</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN=20
> class=3D640414518-24111999></SPAN></FONT> </DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>Any =
> ideas how I'd go=20
> about debugging this?</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>I've =
> made a pass at=20
> RTFM, but obviously not enough :-)</SPAN></FONT></DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN=20
> class=3D640414518-24111999></SPAN></FONT> </DIV>
> <DIV><FONT face=3DArial size=3D2><SPAN class=3D640414518-24111999>Thanks =
> in=20
> advance.</SPAN></FONT></DIV></BODY></HTML>
>
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--
Thomas E. Dickey
address@hidden
http://www.clark.net/pub/dickey