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Diffstat (limited to 'usr/src/uts/common/syscall/resolvepath.c')
-rw-r--r--usr/src/uts/common/syscall/resolvepath.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/usr/src/uts/common/syscall/resolvepath.c b/usr/src/uts/common/syscall/resolvepath.c
new file mode 100644
index 0000000000..e6cb678761
--- /dev/null
+++ b/usr/src/uts/common/syscall/resolvepath.c
@@ -0,0 +1,60 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+#ident "%Z%%M% %I% %E% SMI"
+
+/*
+ * Copyright 1997 by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/errno.h>
+#include <sys/pathname.h>
+
+int
+resolvepath(char *path, char *buf, size_t count)
+{
+ struct pathname lookpn;
+ struct pathname resolvepn;
+ int error;
+
+ if (count == 0)
+ return (0);
+ if (error = pn_get(path, UIO_USERSPACE, &lookpn))
+ return (set_errno(error));
+ pn_alloc(&resolvepn);
+ error = lookuppn(&lookpn, &resolvepn, FOLLOW, NULL, NULL);
+ if (error == 0) {
+ if (count > resolvepn.pn_pathlen)
+ count = resolvepn.pn_pathlen;
+ if (copyout(resolvepn.pn_path, buf, count))
+ error = EFAULT;
+ }
+ pn_free(&resolvepn);
+ pn_free(&lookpn);
+
+ if (error)
+ return (set_errno(error));
+ return ((int)count);
+}