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* Better error handling

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git-svn-id: trunk@2350 -
This commit is contained in:
daniel 2006-01-27 10:36:46 +00:00
parent 44ee4f6a39
commit f1e849a469
1 changed files with 8 additions and 4 deletions
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12
utils/grab_vcsa.pp
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@ -65,7 +65,7 @@ var thistty:string;
ttystat:stat; ttystat:stat;
s:string[15]; s:string[15];
c:char; c:char;
pid,parent,dummy:integer; ppid,pid,parent,dummy:integer;
device:longint; device:longint;
f:text; f:text;
found_vcsa:boolean; found_vcsa:boolean;
@ -81,7 +81,10 @@ begin
assign(f,'/proc/'+s+'/stat'); assign(f,'/proc/'+s+'/stat');
reset(f); reset(f);
if ioresult<>0 then if ioresult<>0 then
break; begin
found_vcsa:=false;
break;
end;
read(f,dummy); read(f,dummy);
read(f,c); read(f,c);
repeat repeat
@ -90,14 +93,15 @@ begin
repeat repeat
read(f,c); read(f,c);
until c=' '; until c=' ';
ppid:=pid;
read(f,pid); read(f,pid);
read(f,dummy); read(f,dummy);
read(f,dummy); read(f,dummy);
read(f,device); read(f,device);
close(f); close(f);
if device=0 then
break; {Not attached to a terminal, i.e. an xterm.}
found_vcsa:=device and $ffffff00=$00000400; {/dev/tty*} found_vcsa:=device and $ffffff00=$00000400; {/dev/tty*}
if (device=0) or (pid=-1) or (ppid=pid) then
break; {Not attached to a terminal, i.e. an xterm.}
until found_vcsa; until found_vcsa;
if found_vcsa then if found_vcsa then
begin begin