stephen@dcl-cs.UUCP (Stephen J. Muir) (08/07/85)
I wanted to maintain large mailing lists using "sendmail". I only knew of two
ways of doing this:
- set up a login name with a ".forward" file
OR
- set up aliases in "/usr/lib/aliases"
I didn't want to set up login names and "/usr/lib/aliases" would have become
too unwieldy, so I wrote another program to do it and this follows. If there
is another way to do it, or there is a better program about, please mail me.
Installation:
Compile the following program and put in "/usr/bin/maillistfile". Create a
file containing all the mailboxes in the list, one per line. Put an entry of
the following form in "/usr/lib/aliases":
fire-lovers:"|maillistfile /usr/gurus/elton/fire-lovers".
----------------------------------- cut here ----------------------------------
#!/bin/sh
echo 'Start of pack.out, part 01 of 01:'
echo 'x - maillistfile.c'
sed 's/^X//' > maillistfile.c << '/'
X/* Written by Stephen J. Muir, Computing Dept., Lancaster University */
X
X# include <sys/types.h>
X# include <sys/stat.h>
X# include <sys/file.h>
X# include <stdio.h>
X
Xextern char *malloc ();
X
Xchar *mailer = "/usr/lib/sendmail", **newargv, **nargvp;
X
Xint fd, count;
X
Xstruct stat stat;
X
Xmain (argc, argv, envp)
X char *argv [], *envp [];
X { register char *cp, *recipients;
X if (argc != 2)
X { fprintf (stderr, "usage: maillistfile file\n");
X exit (1);
X }
X if ((fd = open (argv [1], O_RDONLY, 0)) == -1)
X { perror (argv [1]);
X exit (1);
X }
X setuid (getuid ());
X (void)fstat (fd, &stat);
X if ((stat.st_mode & S_IFMT) != S_IFREG)
X { fprintf (stderr, "%s: not a regular file", argv [1]);
X exit (1);
X }
X if ((recipients = malloc (stat.st_size)) == 0)
X { fprintf (stderr, "Out of memory.\n");
X exit (1);
X }
X if (read (fd, recipients, stat.st_size) != stat.st_size)
X { perror ("read()");
X exit (1);
X }
X for (cp = recipients; cp < recipients + stat.st_size; ++cp)
X if (*cp == '\0')
X { fprintf (stderr, "%s: null byte in file\n", argv [1]);
X exit (1);
X }
X else if (*cp == '\n')
X { *cp = '\0';
X ++count;
X }
X if (*--cp != '\0')
X { fprintf (stderr, "%s: incomplete last line\n", argv [1]);
X exit (1);
X }
X if (count == 0)
X { fprintf (stderr, "%s: empty list\n", argv [1]);
X exit (1);
X }
X if ((nargvp =
X newargv =
X (char **)malloc ((sizeof (char **)) * (count + 3))
X ) == 0
X )
X { fprintf (stderr, "Out of memory.\n");
X exit (1);
X }
X *nargvp++ = "maillist";
X *nargvp++ = "-oMslist-channel";
X cp = recipients;
X while (count--)
X { *nargvp++ = cp;
X while (*cp++ != '\0');
X }
X *nargvp++ = 0;
X execve (mailer, newargv, envp);
X perror (mailer);
X exit (1);
X }
/
echo 'Part 01 of pack.out complete.'
exit
--
UUCP: ...!seismo!mcvax!ukc!dcl-cs!stephen
DARPA: stephen%lancs.comp@ucl-cs | Post: University of Lancaster,
JANET: stephen@uk.ac.lancs.comp | Department of Computing,
Phone: +44 524 65201 Ext. 4599 | Bailrigg, Lancaster, UK.
Project:Alvey ECLIPSE Distribution | LA1 4YRstephen@dcl-cs.UUCP (Stephen J. Muir) (08/09/85)
I was informed by booker@arpa.nrl-aic that this facility is already built into sendmail. The format is as follows: list1::include:/usr/list1 I wish the documents for sendmail were as up to date as the program! -- UUCP: ...!seismo!mcvax!ukc!dcl-cs!stephen DARPA: stephen%lancs.comp@ucl-cs | Post: University of Lancaster, JANET: stephen@uk.ac.lancs.comp | Department of Computing, Phone: +44 524 65201 Ext. 4599 | Bailrigg, Lancaster, UK. Project:Alvey ECLIPSE Distribution | LA1 4YR
gregc@ucsfcgl.UUCP (Greg Couch%CGL) (08/10/85)
There is a documented feature of sendmail, that most sendmail configuration files defeat, which allows the alias list to be read in from a file. In /usr/lib/aliases put: fire-lovers: :include:/usr/gurus/elton/fire-lovers And in /usr/lib/sendmail.cf, put the following lines just after the line that starts with S3, i.e.: S3 # support :include: directive in alias file R:include:$* $@:include:$1 ----- Greg Couch ucbvax!ucsfcgl!gregc gregc@ucsf-cgl.ARPA
mendell@utai.UUCP (Mark Mendell) (08/12/85)
How about the (almost undocumented) :include: keyword in /usr/lib/aliases.
You can put "firelovers: :include: /usr/fireloverNames" into /usr/lib/aliases,
and sendmail will use the contents of the file to expand the alias.
Have fun trying to find the documentation!
--
Mark Mendell
Computer Systems Research Institute University of Toronto
Usenet: {linus, ihnp4, allegra, decvax, floyd}!utcsri!mendell
CSNET: mendell@Toronto
ARPA: mendell%Toronto@CSNet-Relaylouie@umd5.UUCP (08/20/85)
In article <654@utai.UUCP> mendell@utai.UUCP (Mark Mendell) writes: >How about the (almost undocumented) :include: keyword in /usr/lib/aliases. >You can put "firelovers: :include: /usr/fireloverNames" into /usr/lib/aliases, >and sendmail will use the contents of the file to expand the alias. >Have fun trying to find the documentation! >-- >Mark Mendell Well, if you look at the doc directory in /usr/src/usr.lib/sendmail, in "SENDMAIL - An Internetwork Mail Router", the :include: feature is described in section 3.3 "Aliasing, Forwarding, Inclusion". RTFM. -- Louis A. Mamakos WA3YMH University of Maryland, Computer Science Center Internet: louie@trantor.arpa UUCP: {seismo!umcp-cs, ihnp4!rlgvax}!cvl!umd5!louie