1 /* $NetBSD: sysv_sem_14.c,v 1.1 1999/08/25 04:47:12 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/signal.h> 43 #include <sys/proc.h> 44 #include <sys/mount.h> 45 #include <sys/sem.h> 46 47 #define SYSVSEM 48 49 #include <sys/syscallargs.h> 50 51 void 52 semid_ds14_to_native(osembuf, sembuf) 53 struct semid_ds14 *osembuf; 54 struct semid_ds *sembuf; 55 { 56 57 ipc_perm14_to_native(&osembuf->sem_perm, &sembuf->sem_perm); 58 59 #define CVT(x) sembuf->x = osembuf->x 60 CVT(sem_nsems); 61 CVT(sem_otime); 62 CVT(sem_ctime); 63 #undef CVT 64 } 65 66 void 67 native_to_semid_ds14(sembuf, osembuf) 68 struct semid_ds *sembuf; 69 struct semid_ds14 *osembuf; 70 { 71 72 native_to_ipc_perm14(&sembuf->sem_perm, &osembuf->sem_perm); 73 74 #define CVT(x) osembuf->x = sembuf->x 75 CVT(sem_nsems); 76 CVT(sem_otime); 77 CVT(sem_ctime); 78 #undef CVT 79 } 80 81 int 82 compat_14_sys___semctl(p, v, retval) 83 struct proc *p; 84 void *v; 85 register_t *retval; 86 { 87 struct compat_14_sys___semctl_args /* { 88 syscallarg(int) semid; 89 syscallarg(int) semnum; 90 syscallarg(int) cmd; 91 syscallarg(union __semun *) arg; 92 } */ *uap = v; 93 union __semun arg; 94 struct semid_ds sembuf; 95 struct semid_ds14 osembuf; 96 int cmd, error; 97 void *pass_arg = NULL; 98 99 cmd = SCARG(uap, cmd); 100 101 switch (cmd) { 102 case IPC_SET: 103 case IPC_STAT: 104 pass_arg = &sembuf; 105 break; 106 107 case GETALL: 108 case SETVAL: 109 case SETALL: 110 pass_arg = &arg; 111 break; 112 } 113 114 if (pass_arg != NULL) { 115 error = copyin(SCARG(uap, arg), &arg, sizeof(arg)); 116 if (error) 117 return (error); 118 if (cmd == IPC_SET) { 119 error = copyin(arg.buf, &osembuf, sizeof(osembuf)); 120 if (error) 121 return (error); 122 semid_ds14_to_native(&osembuf, &sembuf); 123 } 124 } 125 126 error = semctl1(p, SCARG(uap, semid), SCARG(uap, semnum), cmd, 127 pass_arg, retval); 128 129 if (error == 0 && cmd == IPC_STAT) { 130 native_to_semid_ds14(&sembuf, &osembuf); 131 error = copyout(&osembuf, arg.buf, sizeof(osembuf)); 132 } 133 134 return (error); 135 } 136