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Diffstat (limited to 'usr/src/lib/libbc/libc/sys/common/setsid.c')
-rw-r--r--usr/src/lib/libbc/libc/sys/common/setsid.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/sys/common/setsid.c b/usr/src/lib/libbc/libc/sys/common/setsid.c
new file mode 100644
index 0000000000..138917bc4d
--- /dev/null
+++ b/usr/src/lib/libbc/libc/sys/common/setsid.c
@@ -0,0 +1,68 @@
+/*
+ * 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 1993 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/errno.h>
+
+
+static int setsid_called = 0;
+static int real_setsid_called=0;
+static int setsid_val, setsid_errno;
+
+extern int errno;
+
+/* setpgrp system call number, setsid command code */
+#define SYS_pgrpsys 39
+#define SYS_setsid 3
+
+setsid()
+{
+ if (setsid_called != getpid()) {
+ setsid_called = getpid();
+ return(bc_setsid());
+ } else {
+ errno = EPERM;
+ return(-1);
+ }
+}
+
+
+
+int
+bc_setsid()
+{
+ if (real_setsid_called != getpid()) {
+ real_setsid_called = getpid();
+ setsid_val = _syscall(SYS_pgrpsys, SYS_setsid);
+ setsid_errno = errno;
+ }
+ errno = setsid_errno;
+ return(setsid_val);
+}
+
+
+