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authormillert <millert@openbsd.org>2003-05-08 23:26:30 +0000
committermillert <millert@openbsd.org>2003-05-08 23:26:30 +0000
commitcd087ff391bdbcbbdb7da34b396f13d637f24f78 (patch)
tree7333db3981c56e4ef99022d93be079d0dabe72ee /lib/libc/stdlib/remque.c
parentmove lsearch(3) and insque(3) from libcompat -> libc; they are now POSIX (diff)
downloadwireguard-openbsd-cd087ff391bdbcbbdb7da34b396f13d637f24f78.tar.xz
wireguard-openbsd-cd087ff391bdbcbbdb7da34b396f13d637f24f78.zip
move insque(3) and remque(3) from libcompat -> libc; they are now POSIX
Diffstat (limited to 'lib/libc/stdlib/remque.c')
-rw-r--r--lib/libc/stdlib/remque.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/lib/libc/stdlib/remque.c b/lib/libc/stdlib/remque.c
new file mode 100644
index 00000000000..f4c5769a8c1
--- /dev/null
+++ b/lib/libc/stdlib/remque.c
@@ -0,0 +1,48 @@
+/* $OpenBSD: remque.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: remque.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
+remque(void *element)
+{
+ struct qelem *e = (struct qelem *) element;
+ e->q_forw->q_back = e->q_back;
+ e->q_back->q_forw = e->q_forw;
+}