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authorTodd C. Miller <millert@cvs.openbsd.org>2003-05-08 23:26:31 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>2003-05-08 23:26:31 +0000
commit2dc1a94e9793fba3e4faeb3e1ef7156fa729a958 (patch)
treeb127207232928c5ffc890daf1f3257fea832cb3b /lib/libc/stdlib/insque.c
parent2321232e458a84c459f724406192cc87b757f469 (diff)
move insque(3) and remque(3) from libcompat -> libc; they are now POSIX
Diffstat (limited to 'lib/libc/stdlib/insque.c')
-rw-r--r--lib/libc/stdlib/insque.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/lib/libc/stdlib/insque.c b/lib/libc/stdlib/insque.c
new file mode 100644
index 00000000000..549246c71f5
--- /dev/null
+++ b/lib/libc/stdlib/insque.c
@@ -0,0 +1,52 @@
+/* $OpenBSD: insque.c,v 1.1 2003/05/08 23:26:30 millert Exp $ */
+
+/*
+ * Copyright (c) 1993 John Brezak
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char *rcsid = "$OpenBSD: insque.c,v 1.1 2003/05/08 23:26:30 millert Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <search.h>
+
+struct qelem {
+ struct qelem *q_forw;
+ struct qelem *q_back;
+};
+
+void
+insque(void *entry, void *pred)
+{
+ struct qelem *e = (struct qelem *) entry;
+ struct qelem *p = (struct qelem *) pred;
+
+ e->q_forw = p->q_forw;
+ e->q_back = p;
+ p->q_forw->q_back = e;
+ p->q_forw = e;
+}