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From James.Stevens@jrcs.co.uk Mon Aug 25 18:11:36 1997
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Date: Mon, 18 Aug 1997 10:55:57 +0100
From: James Stevens <James.Stevens@jrcs.co.uk>
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Subject: A Little Tip...
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Seeing Eric tip us that we could run a "fetchmail -quit" in the
"ip-down" script, I thougt it would be neat to run a fetchmail
collection in the "ip-up" script. That way mail is collected
automatically every time I am connecting to Internet for whatever reason
(I use "diald" to automatically manage my connection).
However, it did not work. It hung right after the POP3 login. I tracked
this down to the fact that the "pppd" masks a wide range of signals and
this means a time-out does not kick in. As I run the "ip-up" script in
"bash" this masking is inheritied by "fetchmail".
So, I wrote a silly little "C" program that unmasks all signals and then
runs a command of you choice (in this case fetchmail). This is the code
for that program :-
#include <stdio.h>
#include <signal.h>
main(int argc,char * argv[])
{
sigset_t set;
if (argc>1)
{
sigfillset(&set);
sigprocmask(SIG_UNBLOCK,&set,NULL);
system(argv[1]);
}
}
I call it "allsigs". So, now in my "ip-up" I have the line :-
allsigs "fetchmail -f /etc/fetahmail"
Note the quotes as "allsigs" only looks at argv[1]. I guess this
unmasking of all signals could be added into "fetchmail" ?
James
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