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By default (for security reasons) syslogd(8) doesn't create log files

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when they don't exist, but sometimes its quite useful (eg. we use
non-standard log files and memory backed /var/, which is populated on
boot).

Add -C option which tells syslogd(8) to create log files if they don't
exist.

Glanced at by:	phk
MFC after:	3 days
This commit is contained in:
Pawel Jakub Dawidek 2006-03-06 10:36:33 +00:00
parent 4d5ea49784
commit c503ddf2cc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=156339
2 changed files with 14 additions and 5 deletions
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9
usr.sbin/syslogd/syslogd.8
View File

@ -36,7 +36,7 @@
.Nd log systems messages
.Sh SYNOPSIS
.Nm
.Op Fl 46Acdknosuv
.Op Fl 46ACcdknosuv
.Op Fl a Ar allowed_peer
.Op Fl b Ar bind_address
.Op Fl f Ar config_file
@ -157,6 +157,9 @@ option is also specified.
Specify one specific IP address or hostname to bind to.
If a hostname is specified,
the IPv4 or IPv6 address which corresponds to it is used.
.It Fl C
Create log files that do not exist (permission is set to
.Li 0600 ) .
.It Fl c
Disable the compression of repeated instances of the same line
into a single line of the form
@ -283,7 +286,9 @@ include file
.Pp
For security reasons,
.Nm
will not append to log files that do not exist;
will not append to log files that do not exist (unless
.Fl C
option is specified);
therefore, they must be created manually before running
.Nm .
.Sh FILES

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

@ -286,6 +286,7 @@ static int family = PF_INET; /* protocol family (IPv4 only) */
static int send_to_all; /* send message to all IPv4/IPv6 addresses */
static int use_bootfile; /* log entire bootfile for every kern msg */
static int no_compress; /* don't compress messages (1=pipes, 2=all) */
static int logflags = O_WRONLY|O_APPEND; /* flags used to open log files */
static char bootfile[MAXLINE+1]; /* booted kernel file */
@ -350,7 +351,7 @@ main(int argc, char *argv[])
socklen_t len;
bindhostname = NULL;
while ((ch = getopt(argc, argv, "46Aa:b:cdf:kl:m:nop:P:sS:uv")) != -1)
while ((ch = getopt(argc, argv, "46Aa:b:cCdf:kl:m:nop:P:sS:uv")) != -1)
switch (ch) {
case '4':
family = PF_INET;
@ -373,6 +374,9 @@ main(int argc, char *argv[])
case 'c':
no_compress++;
break;
case 'C':
logflags |= O_CREAT;
break;
case 'd': /* debug */
Debug++;
break;
@ -689,7 +693,7 @@ usage(void)
{
fprintf(stderr, "%s\n%s\n%s\n%s\n",
"usage: syslogd [-46Acdknosuv] [-a allowed_peer]",
"usage: syslogd [-46ACcdknosuv] [-a allowed_peer]",
" [-b bind address] [-f config_file]",
" [-l log_socket] [-m mark_interval]",
" [-P pid_file] [-p log_socket]");
@ -1886,7 +1890,7 @@ cfline(const char *line, struct filed *f, const char *prog, const char *host)
break;
case '/':
if ((f->f_file = open(p, O_WRONLY|O_APPEND, 0)) < 0) {
if ((f->f_file = open(p, logflags, 0600)) < 0) {
f->f_type = F_UNUSED;
logerror(p);
break;