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| author | millert <> | 2003-05-08 23:26:30 +0000 |
|---|---|---|
| committer | millert <> | 2003-05-08 23:26:30 +0000 |
| commit | cc7ac4251d9e79f59912cefe0a1327534890ca07 (patch) | |
| tree | 1c26f297e22f3f1fe18f87a223c6bdff66a0e471 /src/lib/libc/stdlib/insque.c | |
| parent | 904702870b8643c3707b8b8747e4c6814f2afa54 (diff) | |
| download | openbsd-cc7ac4251d9e79f59912cefe0a1327534890ca07.tar.gz openbsd-cc7ac4251d9e79f59912cefe0a1327534890ca07.tar.bz2 openbsd-cc7ac4251d9e79f59912cefe0a1327534890ca07.zip | |
move insque(3) and remque(3) from libcompat -> libc; they are now POSIX
Diffstat (limited to '')
| -rw-r--r-- | src/lib/libc/stdlib/insque.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/lib/libc/stdlib/insque.c b/src/lib/libc/stdlib/insque.c new file mode 100644 index 0000000000..549246c71f --- /dev/null +++ b/src/lib/libc/stdlib/insque.c | |||
| @@ -0,0 +1,52 @@ | |||
| 1 | /* $OpenBSD: insque.c,v 1.1 2003/05/08 23:26:30 millert Exp $ */ | ||
| 2 | |||
| 3 | /* | ||
| 4 | * Copyright (c) 1993 John Brezak | ||
| 5 | * All rights reserved. | ||
| 6 | * | ||
| 7 | * Redistribution and use in source and binary forms, with or without | ||
| 8 | * modification, are permitted provided that the following conditions | ||
| 9 | * are met: | ||
| 10 | * 1. Redistributions of source code must retain the above copyright | ||
| 11 | * notice, this list of conditions and the following disclaimer. | ||
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 13 | * notice, this list of conditions and the following disclaimer in the | ||
| 14 | * documentation and/or other materials provided with the distribution. | ||
| 15 | * 3. The name of the author may be used to endorse or promote products | ||
| 16 | * derived from this software without specific prior written permission. | ||
| 17 | * | ||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR | ||
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| 21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | ||
| 22 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
| 23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 26 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
| 27 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| 28 | * POSSIBILITY OF SUCH DAMAGE. | ||
| 29 | */ | ||
| 30 | |||
| 31 | #if defined(LIBC_SCCS) && !defined(lint) | ||
| 32 | static char *rcsid = "$OpenBSD: insque.c,v 1.1 2003/05/08 23:26:30 millert Exp $"; | ||
| 33 | #endif /* LIBC_SCCS and not lint */ | ||
| 34 | |||
| 35 | #include <search.h> | ||
| 36 | |||
| 37 | struct qelem { | ||
| 38 | struct qelem *q_forw; | ||
| 39 | struct qelem *q_back; | ||
| 40 | }; | ||
| 41 | |||
| 42 | void | ||
| 43 | insque(void *entry, void *pred) | ||
| 44 | { | ||
| 45 | struct qelem *e = (struct qelem *) entry; | ||
| 46 | struct qelem *p = (struct qelem *) pred; | ||
| 47 | |||
| 48 | e->q_forw = p->q_forw; | ||
| 49 | e->q_back = p; | ||
| 50 | p->q_forw->q_back = e; | ||
| 51 | p->q_forw = e; | ||
| 52 | } | ||
