oneMark McLoughlin wrote:
Add a qemudLog() function which uses syslog() if we're in
daemon mode, doesn't output INFO/DEBUG messages unless
the verbose flag is set and doesn't output DEBUG messages
unless compiled with --enable-debug.
You're all gonna hate this I know, but libvirtd handles syslog by
forking an external logger(1) process. Messages sent to stderr go to
syslog. This is partly necessary because the SunRPC code within glibc
is a bit too happy to send debug messages to stderr & nowhere else.
The brief code snippet to enable this is below (and note my original
patch which you can also find on this list enables a test for LOGGER in
autoconf):
#ifdef LOGGER
/* Send stderr to syslog using logger. It's a lot simpler
* to do this. Note that SunRPC in glibc prints lots of
* gumf to stderr and it'd be a load of work to change that.
*/
int fd[2];
if (pipe (fd) == -1) {
perror ("pipe");
exit (2);
}
int pid = fork ();
if (pid == -1) {
perror ("fork");
exit (2);
}
if (pid == 0) { /* Child - logger. */
const char *args[] = {
"logger", "-tlibvirtd", "-p", "daemon.notice", NULL
};
close (fd[1]);
dup2 (fd[0], 0);
close (fd[0]);
execv (LOGGER, (char *const *) args);
perror ("execv");
_exit (1);
}
close (fd[0]);
dup2 (fd[1], 2);
close (fd[1]);
#endif
Rich.
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