[Serusers] exec_dset() error checking?

[Alan Crosswell]

The following code fragment causes a SER error rather than returning a 
detectable failure:

if (!exec_dset("/etc/ser/sipldap")) {
	sl_send_reply("404", "Not Found");
	break;
}

Nov 26 15:26:32 ren /usr/sbin/ser[30834]: INFO: SIGCHLD received: we do 
not worry about grand-children
Nov 26 15:26:32 ren /usr/sbin/ser[30834]: ERROR:exec_str: no uri from 
/etc/ser/sipldap sip:wwww at columbia.edu

The script prints a URI and does exit 0 on success.  It prints nothing 
and does exit 1 on failure.  However, this does not appear to be seen as 
a failure by ser but rather a runtime error.  What am I doing wrong?

/a
PS: The documentation for exec_dset() misspells it as exec_dst() in 
http://iptel.org/ser/doc/modules/html/exec.html