dtrace discuss - Apr 2009 - the content of copyinstr get truncated.

Hi, All,

What''s the maximum length of copyinstr? I used the following line in
the
action part, but the got sql is not complete. Apparently it got truncated.
Is there anyway to get the full string instead of a partial one?

pid113::*mysql_parse*:entry
{
    printf("%s\n",copyinstr(arg1));
}

Thanks,
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Qihua Wu wrote:
> What''s the maximum length of copyinstr? I used the following line
in the
> action part, but the got sql is not complete. Apparently it got
> truncated. Is there anyway to get the full string instead of a partial one?
> 
> pid113::*mysql_parse*:entry
> {
>     printf("%s\n",copyinstr(arg1));
> }
You can modify the amount copied with this:

#pragma D option strsize=XXX

Where "XXX" is some number big enough for your string.  1K, or
whatever.  The default is apparently 256.

-- 
John Wren Kennedy
Solaris RPE

Hi

Strings in D are 256 bytes by default. You can change the default  
using the strsize pragma.

#!/usr/sbin/dtrace -s
#pragma D option strsize=1024
pid113::*mysql_parse*:entry
{
     printf("%s\n",copyinstr(arg1));
}

-Angelo


On Apr 15, 2009, at 10:01 PM, Qihua Wu wrote:
> Hi, All,
>
> What''s the maximum length of copyinstr? I used the following line
in
> the action part, but the got sql is not complete. Apparently it got  
> truncated. Is there anyway to get the full string instead of a  
> partial one?
>
> pid113::*mysql_parse*:entry
> {
>     printf("%s\n",copyinstr(arg1));
> }
>
> Thanks,
>
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
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