More shrinkage, a bit for ramdisks but mostly for static binaries:

- wrap with #ifndef NO_LOG_BAD_DNS_RESPONSES libc code that uses
  p_class() and p_type() for diagnostics, then add that define to
  libstub to avoid pulling in res_debug_syms.o
- split rcmd() and ruserok() into separate files, as nothing uses both
- split readdir_r() to its own file
- split syslog_r() from syslog(), as the latter needs localtime(); many
  binaries no longer need to pull in all the time code after this; switch
  from usleep() to nanosleep() while we're at it

(The profit of analysis of -Wl,-M,--cref output)

Chops 888kB from /bin and /sbin on i386

ok deraadt@, miod@

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/libc/gen/readdir_r.c b/lib/libc/gen/readdir_r.c
new file mode 100644
index 00000000000..04a7fdc953f
--- /dev/null
+++ b/lib/libc/gen/readdir_r.c
@@ -0,0 +1,56 @@
+/*	$OpenBSD: readdir_r.c,v 1.1 2009/11/18 07:43:22 guenther Exp $ */
+/*
+ * Copyright (c) 1983, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <dirent.h>
+#include <string.h>
+#include <errno.h>
+#include "thread_private.h"
+
+int
+readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
+{
+	struct dirent *dp;
+
+	_MUTEX_LOCK(&dirp->dd_lock);
+	if (_readdir_unlocked(dirp, &dp, 1) != 0) {
+		_MUTEX_UNLOCK(&dirp->dd_lock);
+		return errno;
+	}
+	if (dp != NULL)
+		memcpy(entry, dp,
+		    sizeof (struct dirent) - MAXNAMLEN + dp->d_namlen);
+	_MUTEX_UNLOCK(&dirp->dd_lock);
+	if (dp != NULL)
+		*result = entry;
+	else
+		*result = NULL;
+	return 0;
+}