Mailing List Archive

I apologize in advance for posting this question to the development
forum, but unfortunately the modules-development list is dead
according to the list server.


I have a module attempting to write a log file --
not one of the Apache log files -- for its own use.

I adopted the code from a similar module which uses
it to open-for-read a whitelist file in the default
configuration directory; it works in that module.

When opening for create-or-append a permissions
failure occurs. The module reports the error as follows:


Dec 24 22:11:58 mod_botlist: logfile </var/log/apache/>
Dec 24 22:11:58 mod_botlist: Log file </var/log/apache/robots.log>
Dec 24 22:11:58 mod_botlist: Error opening log file
</var/log/apache/robots.log>


Protection for the /var/log/apache directory is the default.
This is the directory where Apache keeps its log files:


/var/log ...
drwxr-xr-x 2 root root 4096 Dec 24 22:11 apache


The code for the file open is below. The module gets
through the stat checking section but fails to open
the (nonexistent at the first request) file for append.


/* Stat a possibly existing file in case there's a problem */

errno = 0;
logstat = stat(logfilename, &statdata);
if ( (logstat < 0) && (errno != ENOENT) ) {
filerr = errno;
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r,
"mod_botlist: Error on log file <%s>",
logfilename);
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r,
" %s",
strerror(filerr));
bl_unlock_mutex(r, bl_scfg);
return DECLINED;
}

/* Open the file for append, or if none, create it */

errno = 0;
logfile = fopen(logfilename, "a+");
if (errno != 0) {
filerr = errno;
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r,
"mod_botlist: Error opening log file <%s>",
logfilename);
ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r,
" %s",
strerror(filerr));
bl_unlock_mutex(r, bl_scfg);
return DECLINED;
}


1) Is this problem due to the core giving up its privilege
after the individual servers are started? Clearly some
part of the server had enough privilege to create those
files.

2) Am I doing this the hard way? Is there a method in Apache
to write log files other than the server log files? I've
investigated the source in /httpd/loggers but I'm sorry to
say I can't follow most of what is going on.