- djm@cvs.openbsd.org 2011/06/17 21:44:31
[log.c log.h monitor.c monitor.h monitor_wrap.c monitor_wrap.h sshd.c]
make the pre-auth privsep slave log via a socketpair shared with the
monitor rather than /var/empty/dev/log; ok dtucker@ deraadt@ markus@
diff --git a/log.c b/log.c
index 4a8239b..ad5a10b 100644
--- a/log.c
+++ b/log.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: log.c,v 1.41 2008/06/10 04:50:25 dtucker Exp $ */
+/* $OpenBSD: log.c,v 1.42 2011/06/17 21:44:30 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -56,6 +56,8 @@
static int log_on_stderr = 1;
static int log_facility = LOG_AUTH;
static char *argv0;
+static log_handler_fn *log_handler;
+static void *log_handler_ctx;
extern char *__progname;
@@ -260,6 +262,9 @@
exit(1);
}
+ log_handler = NULL;
+ log_handler_ctx = NULL;
+
log_on_stderr = on_stderr;
if (on_stderr)
return;
@@ -327,6 +332,23 @@
#define MSGBUFSIZ 1024
void
+set_log_handler(log_handler_fn *handler, void *ctx)
+{
+ log_handler = handler;
+ log_handler_ctx = ctx;
+}
+
+void
+do_log2(LogLevel level, const char *fmt,...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ do_log(level, fmt, args);
+ va_end(args);
+}
+
+void
do_log(LogLevel level, const char *fmt, va_list args)
{
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
@@ -337,6 +359,7 @@
char *txt = NULL;
int pri = LOG_INFO;
int saved_errno = errno;
+ log_handler_fn *tmp_handler;
if (level > log_level)
return;
@@ -375,7 +398,7 @@
pri = LOG_ERR;
break;
}
- if (txt != NULL) {
+ if (txt != NULL && log_handler == NULL) {
snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
} else {
@@ -383,7 +406,13 @@
}
strnvis(fmtbuf, msgbuf, sizeof(fmtbuf),
log_on_stderr ? LOG_STDERR_VIS : LOG_SYSLOG_VIS);
- if (log_on_stderr) {
+ if (log_handler != NULL) {
+ /* Avoid recursion */
+ tmp_handler = log_handler;
+ log_handler = NULL;
+ tmp_handler(level, fmtbuf, log_handler_ctx);
+ log_handler = tmp_handler;
+ } else if (log_on_stderr) {
snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf);
write(STDERR_FILENO, msgbuf, strlen(msgbuf));
} else {