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Cron: add CC and BCC option for crontab variables

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Signed-off-by: Lakshmikanth Ayyadevara <lakshmikanth.a.ayyadevara@oracle.com>
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1865
This commit is contained in:
Lakshmikanth Ayyadevara 2025-10-02 21:38:09 +05:30 • committed by Warner Losh
parent 5395471516
commit 3e72ce4081
2 changed files with 18 additions and 2 deletions
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6
usr.sbin/cron/cron/do_command.c
View file

@ -82,7 +82,7 @@ child_process(entry *e, user *u)
{
int stdin_pipe[2], stdout_pipe[2];
char *input_data;
const char *usernm, *mailto, *mailfrom;
const char *usernm, *mailto, *mailfrom, *mailcc, *mailbcc;
PID_T jobpid, stdinjob, mailpid;
FILE *mail;
int bytes = 1;
@ -104,6 +104,8 @@ child_process(entry *e, user *u)
*/
usernm = env_get("LOGNAME", e->envp);
mailto = env_get("MAILTO", e->envp);
mailcc = env_get("MAILCC", e->envp);
mailbcc = env_get("MAILBCC", e->envp);
mailfrom = env_get("MAILFROM", e->envp);
#ifdef PAM
@ -547,6 +549,8 @@ child_process(entry *e, user *u)
fprintf(mail, "From: Cron Daemon <%s>\n",
mailfrom);
fprintf(mail, "To: %s\n", mailto);
fprintf(mail, "CC: %s\n", mailcc);
fprintf(mail, "BCC: %s\n", mailbcc);
fprintf(mail, "Subject: Cron <%s@%s> %s\n",
usernm, first_word(hostname, "."),
e->cmd);

14
usr.sbin/cron/crontab/crontab.5
View file

@ -128,9 +128,19 @@ If
is defined (and non-empty), mail is
sent to the user so named.
If
.Ev MAILCC
is defined (and non-empty), mail is carbon copied to the user(s) so named.
.Ev MAILBCC
is defined (and non-empty),
mail is blind carbon copied to the user(s) so named.
If
.Ev MAILFROM
is defined (and non-empty), its value will be used as the from address.
.Ev MAILTO
,
.Ev MAILCC
and
.Ev MAILBCC
may also be used to direct mail to multiple recipients
by separating recipient users with a comma.
If
@ -298,7 +308,9 @@ is started or the crontab entry is reloaded.
SHELL=/bin/sh
# mail any output to `paul', no matter whose crontab this is
MAILTO=paul
#
# CC and BCC mail to `lakshmikanth@example.com' and 'paul@example.com'
MAILCC=lakshmikanth@example.com,paul@example.com
MAILBCC=peter@example.com
# run five minutes after midnight, every day
5 0 * * * $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
# run at 2:15pm on the first of every month -- output mailed to paul