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From: paul@devon.UUCP (Paul Sutcliffe Jr.)
Newsgroups: comp.unix.questions
Subject: Re: How to make sendmail re-read the configuration file
Message-ID: <201@devon.UUCP>
Date: Thu, 15-Jan-87 08:52:06 EST
Article-I.D.: devon.201
Posted: Thu Jan 15 08:52:06 1987
Date-Received: Mon, 19-Jan-87 03:48:27 EST
References: <136@quacky.mips.UUCP>
Distribution: na
Organization: Devon Computer Services, Allentown, PA
Lines: 21
Summary: No help, but a suggestion.

In article <136@quacky.mips.UUCP>, dce@mips.UUCP (David Elliott) writes:

> I would like to modify sendmail to have it re-read the configuration
> file on some given signal (HUP?), but I am worried that sendmail
> can't handle this without modifications elsewhere. Is there anyone
> with a lot of sendmail experience that can help me out?

Why not do what cron(1) does.  Perform a stat() call on the file's fd
after it is first opened and save the st_mtime value somewhere (the
last modification time of the file).  Then have sendmail re-stat the
file every time it is awakened, compare the new st_mtime value with the
saved one, and if the new one is greater (the config file has been
modified since the original read), re-read the file.

-paul

-- 
Paul Sutcliffe, Jr.	 UUCP: {seismo,ihnp4,allegra,rutgers}!cbmvax!devon!paul
Devon Computer Services  COMPUSERVE: 76176,502
Allentown, Penna.	 "I love work ..."
+1 215 398 3776 	 "... I could sit and watch people do it all day!"