lib9pclient is the new libfs

src/lib9pclient/stat.c

@@ -0,0 +1,54 @@
+/* Copyright (C) 2003 Russ Cox, Massachusetts Institute of Technology */
+/* See COPYRIGHT */
+
+#include <u.h>
+#include <libc.h>
+#include <fcall.h>
+#include <9pclient.h>
+#include "fsimpl.h"
+
+Dir*
+fsdirstat(CFsys *fs, char *name)
+{
+	Dir *d;
+	CFid *fid;
+
+	if((fid = _fswalk(fs->root, name)) == nil)
+		return nil;
+	
+	d = fsdirfstat(fid);
+	fsclose(fid);
+	return d;
+}
+
+Dir*
+fsdirfstat(CFid *fid)
+{
+	Dir *d;
+	CFsys *fs;
+	Fcall tx, rx;
+	void *freep;
+	int n;
+
+	fs = fid->fs;
+	tx.type = Tstat;
+	tx.fid = fid->fid;
+
+	if(_fsrpc(fs, &tx, &rx, &freep) < 0)
+		return nil;
+
+	d = malloc(sizeof(Dir)+rx.nstat);
+	if(d == nil){
+		free(freep);
+		return nil;
+	}
+	n = convM2D(rx.stat, rx.nstat, d, (char*)&d[1]);
+	free(freep);
+	if(n != rx.nstat){
+		free(d);
+		werrstr("rx.nstat and convM2D disagree about dir length");
+		return nil;
+	}
+	return d;
+}
+