Move logging functions to log.c

Instead of keeping all unrelated to
C/R procedure helpers in util.c move
logging related helpers to log.c.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>

util.c

@@ -37,50 +37,16 @@
 #include "types.h"
 #include "list.h"
 #include "util.h"
+#include "log.h"
 
 #include "crtools.h"
 
-static int logfd = STDERR_FILENO;
-
-int init_logging(const char *name)
-{
-	struct rlimit rlimit;
-	int fd = STDERR_FILENO;
-
-	if (name) {
-		fd = open(name, O_CREAT | O_WRONLY);
-		if (fd == -1) {
-			pr_perror("Can't create log file %s\n", name);
-			return -1;
-		}
-	}
-
-	if (getrlimit(RLIMIT_NOFILE, &rlimit)) {
-		pr_err("can't get rlimit: %m\n");
-		return -1;
-	}
-
-	logfd = rlimit.rlim_cur - 1;
-	if (dup2(fd, logfd) < 0) {
-		pr_err("can't duplicate descriptor 2->%d: %m\n", logfd);
-		return -1;
-	}
-
-	return 0;
-}
-
-void deinit_logging(void)
-{
-	close(logfd);
-	logfd = -1;
-}
-
 void printk(const char *format, ...)
 {
 	va_list params;
 
 	va_start(params, format);
-	vdprintf(logfd, format, params);
+	vdprintf(get_logfd(), format, params);
 	va_end(params);
 }