OpenSolaris Launch

1 files changed, 86 insertions, 0 deletions

diff --git a/usr/src/lib/libproc/common/proc_set.c b/usr/src/lib/libproc/common/proc_set.c
new file mode 100644
index 0000000000..bdd7ccb77d
--- /dev/null
+++ b/usr/src/lib/libproc/common/proc_set.c
@@ -0,0 +1,86 @@
+/*
+ * 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
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include "libproc.h"
+#include <alloca.h>
+#include <string.h>
+
+/*
+ * Convenience wrapper to set the cred attributes of a victim process
+ * to a set of new values. Caller must supply a prochandle and a
+ * fully populated prcred structure.
+ */
+int
+Psetcred(struct ps_prochandle *Pr, const prcred_t *credp)
+{
+	int ngrp;
+	int ctlsize;
+	struct {
+		long cmd;
+		prcred_t cred;
+	} *ctlp;
+
+	if (Pr == NULL || credp == NULL)
+		return (-1);
+
+	ngrp = credp->pr_ngroups;
+	ctlsize = sizeof (prcred_t) + (ngrp - 1) * sizeof (gid_t);
+	ctlp = alloca(ctlsize + sizeof (long));
+
+	ctlp->cmd = PCSCREDX;
+	(void) memcpy(&ctlp->cred, credp, ctlsize);
+
+	if (write(Pctlfd(Pr), ctlp, sizeof (long) + ctlsize) < 0)
+		return (-1);
+
+	return (0);
+}
+
+/*
+ * Convenience wrapper to set the zoneid attribute of a victim process to a new
+ * value (only to and from GLOBAL_ZONEID makes sense).  Caller must supply a
+ * prochandle and a valid zoneid.
+ */
+int
+Psetzoneid(struct ps_prochandle *Pr, zoneid_t zoneid)
+{
+	struct {
+		long cmd;
+		long zoneid;
+	} ctl;
+
+	if (Pr == NULL)
+		return (-1);
+
+	ctl.zoneid = zoneid;
+	ctl.cmd = PCSZONE;
+
+	if (write(Pctlfd(Pr), &ctl, sizeof (ctl)) < 0)
+		return (-1);
+	return (0);
+}