import the plan 9 libraries libc (lib9) and libbio into the tree.

remove the dependency on /home/r.

SVN=122482

1 files changed, 57 insertions, 0 deletions

diff --git a/src/lib9/dirstat.c b/src/lib9/dirstat.c
new file mode 100644
index 000000000..5cb6790bc
--- /dev/null
+++ b/src/lib9/dirstat.c
@@ -0,0 +1,57 @@
+/*
+Plan 9 from User Space src/lib9/dirstat.c
+http://code.swtch.com/plan9port/src/tip/src/lib9/dirstat.c
+
+Copyright 2001-2007 Russ Cox.  All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+#include <u.h>
+#define NOPLAN9DEFINES
+#include <libc.h>
+
+#include <sys/stat.h>
+
+extern int _p9dir(struct stat*, struct stat*, char*, Dir*, char**, char*);
+
+Dir*
+dirstat(char *file)
+{
+	struct stat lst;
+	struct stat st;
+	int nstr;
+	Dir *d;
+	char *str;
+
+	if(lstat(file, &lst) < 0)
+		return nil;
+	st = lst;
+	if((lst.st_mode&S_IFMT) == S_IFLNK)
+		stat(file, &st);
+
+	nstr = _p9dir(&lst, &st, file, nil, nil, nil);
+	d = malloc(sizeof(Dir)+nstr);
+	if(d == nil)
+		return nil;
+	memset(d, 0, sizeof(Dir)+nstr);
+	str = (char*)&d[1];
+	_p9dir(&lst, &st, file, d, &str, str+nstr);
+	return d;
+}
+