1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include "lint.h" 33 #include <sys/types.h> 34 #include <sys/procset.h> 35 #include <sys/priocntl.h> 36 #include <stdarg.h> 37 #include <errno.h> 38 39 /* 40 * The declarations of __priocntlset() and __priocntl() were in prior releases 41 * in <sys/priocntl.h>. They are used to define PC_VERSION at compile time, 42 * based on the contents of the header file. This behavior is now changed. 43 * Old binaries call __priocntl() and __priocntlset() instead of priocntl() 44 * and priocntlset(). New binaries call priocntl() and priocntlset(). 45 */ 46 47 /* 48 * defined in priocntlset.s 49 */ 50 extern long __priocntlset(int, procset_t *, int, caddr_t, ...); 51 52 static int pc_vaargs2parms(va_list valist, pc_vaparms_t *vp); 53 54 long 55 __priocntl(int pc_version, idtype_t idtype, id_t id, int cmd, caddr_t arg) 56 { 57 procset_t procset; 58 59 setprocset(&procset, POP_AND, idtype, id, P_ALL, 0); 60 61 return (__priocntlset(pc_version, &procset, cmd, arg, 0)); 62 } 63 64 65 /*VARARGS3*/ 66 long 67 priocntl(idtype_t idtype, id_t id, int cmd, ...) 68 { 69 procset_t procset; 70 va_list valist; 71 pc_vaparms_t varparms; 72 caddr_t arg; 73 int error; 74 75 setprocset(&procset, POP_AND, idtype, id, P_ALL, 0); 76 77 va_start(valist, cmd); 78 arg = va_arg(valist, caddr_t); 79 80 if (cmd != PC_GETXPARMS && cmd != PC_SETXPARMS) { 81 va_end(valist); 82 return (__priocntlset(PC_VERSION, &procset, cmd, arg, 0)); 83 } 84 85 error = pc_vaargs2parms(valist, &varparms); 86 va_end(valist); 87 88 if (error) { 89 errno = error; 90 return (-1); 91 } 92 93 return (__priocntlset(PC_VERSION, &procset, cmd, arg, &varparms)); 94 } 95 96 97 /*VARARGS2*/ 98 long 99 priocntlset(procset_t *procsetp, int cmd, ...) 100 { 101 va_list valist; 102 pc_vaparms_t varparms; 103 caddr_t arg; 104 int error; 105 106 va_start(valist, cmd); 107 arg = va_arg(valist, caddr_t); 108 109 if (cmd != PC_GETXPARMS && cmd != PC_SETXPARMS) { 110 va_end(valist); 111 return (__priocntlset(PC_VERSION, procsetp, cmd, arg, 0)); 112 } 113 114 error = pc_vaargs2parms(valist, &varparms); 115 va_end(valist); 116 117 if (error) { 118 errno = error; 119 return (-1); 120 } 121 122 return (__priocntlset(PC_VERSION, procsetp, cmd, arg, &varparms)); 123 } 124 125 126 static int 127 pc_vaargs2parms(va_list valist, pc_vaparms_t *vp) 128 { 129 pc_vaparm_t *vpp = &vp->pc_parms[0]; 130 int key; 131 132 for (vp->pc_vaparmscnt = 0; 133 (key = va_arg(valist, int)) != PC_KY_NULL; vpp++) { 134 if (++vp->pc_vaparmscnt > PC_VAPARMCNT) 135 return (EINVAL); 136 137 vpp->pc_key = key; 138 vpp->pc_parm = va_arg(valist, uintptr_t); 139 } 140 141 return (0); 142 } 143