Subject: at: Read MAILTO environment variable to determine recipient for
standard out/err
Package: at
Version: 3.1.10.2-0js
Severity: wishlist
Tags: patch
Hi,
it would be nice if one could more dynamically adjust the mail adress standard
out and err are sent to. I've attached a little patch that gives the MAILTO
environment variable preference to all other name sources.
I don't know if I had better included an extra commandline option for that
purpose, but this way it's simpler and perhaps there are some scripts which
make use of this variable anyway (as in crontab, but perhaps it is overkill to
use at and cron together [-; ) and it better fits in the way at receives its
mailnames (LOGNAME, utmp).
-- System Information:
Debian Release: 5.0.5
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.26-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages at depends on:
ii exim4 4.69-9 metapackage to ease Exim MTA (v4)
ii exim4-daemon-light [mail- 4.69-9 lightweight Exim MTA (v4) daemon
ii libc6 2.7-18lenny4 GNU C Library: Shared libraries
ii libpam0g 1.0.1-5+lenny1 Pluggable Authentication Modules l
ii lsb-base 3.2-20 Linux Standard Base 3.2 init scrip
at recommends no packages.
at suggests no packages.
-- no debconf information
diff -r -u ../at-3.1.12/at.c ./at.c
--- ../at-3.1.12/at.c 2010-08-26 16:12:11.000000000 +0200
+++ ./at.c 2010-08-26 15:48:48.000000000 +0200
@@ -355,6 +355,12 @@
/* Get the userid to mail to, first by trying getlogin(), which reads
* /var/run/utmp, then from LOGNAME, finally from getpwuid().
*/
+
+ /* New Feature: MAILTO overrides everything */
+ mailname = getenv("MAILTO");
+ if (mailname != NULL)
+ goto dontbother;
+
mailname = getlogin();
if (mailname == NULL)
mailname = getenv("LOGNAME");
@@ -364,6 +370,7 @@
mailname = pass_entry->pw_name;
}
+dontbother:
if ((mailname == NULL) || (mailname[0] == '\0')
|| (strlen(mailname) > mailsize) ) {
panic("Cannot find username to mail output to");
@@ -374,6 +381,7 @@
perr("Cannot open input file %.500s", atinput);
}
+ fprintf(stderr, "Mail will be sent to %s\n", mailname);
fprintf(fp, "#!/bin/sh\n# atrun uid=%d gid=%d\n# mail %s %d\n",
real_uid, real_gid, mailname, send_mail);
