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Add a new option, -P, which reverts newsyslog(8) to the old behavior,

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which stops to proceed further, as it is possible that processes which
fails to create PID file get screwed by rotation.

Requested by:	stas
MFC after:	2 weeks
X-MFC with:	r200806
This commit is contained in:
Xin LI 2010-01-20 01:07:38 +00:00
parent 26f87cc6ff
commit ccc28f774a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202668
2 changed files with 13 additions and 5 deletions
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8
usr.sbin/newsyslog/newsyslog.8
View File

@ -17,7 +17,7 @@
.\" the suitability of this software for any purpose. It is
.\" provided "as is" without express or implied warranty.
.\"
.Dd February 24, 2005
.Dd January 19, 2010
.Dt NEWSYSLOG 8
.Os
.Sh NAME
@ -25,7 +25,7 @@
.Nd maintain system log files to manageable sizes
.Sh SYNOPSIS
.Nm
.Op Fl CFNnrsv
.Op Fl CFNPnrsv
.Op Fl R Ar tagname
.Op Fl a Ar directory
.Op Fl d Ar directory
@ -169,6 +169,10 @@ This option is intended to be used with the
or
.Fl CC
options when creating log files is the only objective.
.It Fl P
Prevent further action if we should send signal but the
.Dq pidfile
is empty or does not exist.
.It Fl R Ar tagname
Specify that
.Nm

10
usr.sbin/newsyslog/newsyslog.c
View File

@ -167,6 +167,7 @@ int needroot = 1; /* Root privs are necessary */
int noaction = 0; /* Don't do anything, just show it */
int norotate = 0; /* Don't rotate */
int nosignal; /* Do not send any signals */
int enforcepid = 0; /* If PID file does not exist or empty, do nothing */
int force = 0; /* Force the trim no matter what */
int rotatereq = 0; /* -R = Always rotate the file(s) as given */
/* on the command (this also requires */
@ -580,7 +581,7 @@ parse_args(int argc, char **argv)
*p = '\0';
/* Parse command line options. */
while ((ch = getopt(argc, argv, "a:d:f:nrsvCD:FNR:")) != -1)
while ((ch = getopt(argc, argv, "a:d:f:nrsvCD:FNPR:")) != -1)
switch (ch) {
case 'a':
archtodir++;
@ -624,6 +625,9 @@ parse_args(int argc, char **argv)
case 'N':
norotate++;
break;
case 'P':
enforcepid++;
break;
case 'R':
rotatereq++;
requestor = strdup(optarg);
@ -1779,7 +1783,7 @@ set_swpid(struct sigwork_entry *swork, const struct conf_entry *ent)
f = fopen(ent->pid_file, "r");
if (f == NULL) {
if (errno == ENOENT) {
if (errno == ENOENT && enforcepid == 0) {
/*
* Warn if the PID file doesn't exist, but do
* not consider it an error. Most likely it
@ -1801,7 +1805,7 @@ set_swpid(struct sigwork_entry *swork, const struct conf_entry *ent)
* has terminated, so it should be safe to rotate any
* log files that the process would have been using.
*/
if (feof(f)) {
if (feof(f) && enforcepid == 0) {
swork->sw_pidok = 1;
warnx("pid file is empty: %s", ent->pid_file);
} else