1 /* $NetBSD: compat___semctl13.c,v 1.5 2014/08/13 14:43:48 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 #include <sys/cdefs.h> 39 #if defined(LIBC_SCCS) && !defined(lint) 40 __RCSID("$NetBSD: compat___semctl13.c,v 1.5 2014/08/13 14:43:48 joerg Exp $"); 41 #endif /* LIBC_SCCS and not lint */ 42 43 #include "namespace.h" 44 #define __LIBC12_SOURCE__ 45 #include <stdarg.h> 46 #include <sys/time.h> 47 #include <compat/sys/time.h> 48 #include <sys/sem.h> 49 #include <compat/sys/sem.h> 50 #if defined(__clang__) && defined(__powerpc__) && !defined(__powerpc64__) 51 #define __lint__ 52 #endif 53 #ifdef __lint__ 54 #include <string.h> 55 #endif 56 57 __warn_references(__semctl13, 58 "warning: reference to compatibility __semctl13(); include <sys/sem.h> to generate correct reference") 59 60 /* 61 * Copy timeout to local variable and call the syscall. 62 */ 63 int 64 __semctl13(int semid, int semnum, int cmd, ...) 65 { 66 va_list ap; 67 union __semun semun; 68 struct semid_ds13 *ds13; 69 struct semid_ds ds; 70 int error; 71 72 va_start(ap, cmd); 73 switch (cmd) { 74 case IPC_SET: 75 case IPC_STAT: 76 case GETALL: 77 case SETVAL: 78 case SETALL: 79 #ifdef __lint__ 80 memcpy(&semun, &ap, sizeof(semun)); 81 #else 82 semun = va_arg(ap, union __semun); 83 #endif 84 break; 85 default: 86 break; 87 } 88 va_end(ap); 89 90 switch (cmd) { 91 case IPC_SET: 92 case IPC_STAT: 93 ds13 = (void *)semun.buf; 94 semun.buf = &ds; 95 if (cmd == IPC_SET) 96 __semid_ds13_to_native(ds13, &ds); 97 break; 98 default: 99 ds13 = NULL; 100 break; 101 } 102 103 104 error = ____semctl50(semid, semnum, cmd, &semun); 105 if (error) 106 return error; 107 108 if (cmd == IPC_STAT) 109 __native_to_semid_ds13(&ds, ds13); 110 return 0; 111 } 112