You're going to kick yourself, you need to change "function;" to "function();"(We've all done this at one time or another).
You also shouldn't use an exclusive lock when reading from a file, you should use a shared lock.
This is how I got the code to work.
#start of login.cgi
open(FILE, ">file.log");
flock(FILE, 2); # 2 is an exclusive lock
print FILE "$a:$b:$c\n";
close FILE;
#call function
function ();
# return 0;
#end of login.cgi
-------------------
;#start of login.pl
sub function
{
open(FILE, "<file.log");
flock(FILE, 1); # 1 is a shared lock
$a = <FILE>;
print "line: $a\n";
close FILE;
#end of login.pl
1;
}
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