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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1997-2000 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/isa_defs.h> 30 #include <stdlib.h> 31 #include <unistd.h> 32 #include <errno.h> 33 #include "libproc.h" 34 35 /* 36 * getitimer() system call -- executed by victim process. 37 */ 38 int 39 pr_getitimer(struct ps_prochandle *Pr, int which, struct itimerval *itv) 40 { 41 sysret_t rval; /* return value from getitimer() */ 42 argdes_t argd[2]; /* arg descriptors for getitimer() */ 43 argdes_t *adp; 44 int error; 45 #ifdef _LP64 46 int victim32 = (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32); 47 struct itimerval32 itimerval32; 48 #endif 49 50 if (Pr == NULL) /* no victim process */ 51 return (getitimer(which, itv)); 52 53 adp = &argd[0]; /* which argument */ 54 adp->arg_value = which; 55 adp->arg_type = AT_BYVAL; 56 adp->arg_inout = AI_INPUT; 57 adp->arg_object = NULL; 58 adp->arg_size = 0; 59 60 adp++; /* itv argument */ 61 adp->arg_value = 0; 62 adp->arg_type = AT_BYREF; 63 adp->arg_inout = AI_OUTPUT; 64 #ifdef _LP64 65 if (victim32) { 66 adp->arg_object = &itimerval32; 67 adp->arg_size = sizeof (itimerval32); 68 } else { 69 adp->arg_object = itv; 70 adp->arg_size = sizeof (*itv); 71 } 72 #else /* _LP64 */ 73 adp->arg_object = itv; 74 adp->arg_size = sizeof (*itv); 75 #endif /* _LP64 */ 76 77 error = Psyscall(Pr, &rval, SYS_getitimer, 2, &argd[0]); 78 79 if (error) { 80 errno = (error > 0)? error : ENOSYS; 81 return (-1); 82 } 83 #ifdef _LP64 84 if (victim32) { 85 ITIMERVAL32_TO_ITIMERVAL(itv, &itimerval32); 86 } 87 #endif /* _LP64 */ 88 return (rval.sys_rval1); 89 } 90 91 /* 92 * setitimer() system call -- executed by victim process. 93 */ 94 int 95 pr_setitimer(struct ps_prochandle *Pr, 96 int which, const struct itimerval *itv, struct itimerval *oitv) 97 { 98 sysret_t rval; /* return value from setitimer() */ 99 argdes_t argd[3]; /* arg descriptors for setitimer() */ 100 argdes_t *adp; 101 int error; 102 #ifdef _LP64 103 int victim32 = (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32); 104 struct itimerval32 itimerval32; 105 struct itimerval32 oitimerval32; 106 #endif /* _LP64 */ 107 108 if (Pr == NULL) /* no victim process */ 109 return (setitimer(which, (struct itimerval *)itv, oitv)); 110 111 adp = &argd[0]; /* which argument */ 112 adp->arg_value = which; 113 adp->arg_type = AT_BYVAL; 114 adp->arg_inout = AI_INPUT; 115 adp->arg_object = NULL; 116 adp->arg_size = 0; 117 118 adp++; /* itv argument */ 119 adp->arg_value = 0; 120 adp->arg_type = AT_BYREF; 121 adp->arg_inout = AI_INPUT; 122 #ifdef _LP64 123 if (victim32) { 124 ITIMERVAL_TO_ITIMERVAL32(&itimerval32, itv); 125 adp->arg_object = (void *)&itimerval32; 126 adp->arg_size = sizeof (itimerval32); 127 } else { 128 adp->arg_object = (void *)itv; 129 adp->arg_size = sizeof (*itv); 130 } 131 #else /* _LP64 */ 132 adp->arg_object = (void *)itv; 133 adp->arg_size = sizeof (*itv); 134 #endif /* _LP64 */ 135 136 adp++; /* oitv argument */ 137 adp->arg_value = 0; 138 if (oitv == NULL) { 139 adp->arg_type = AT_BYVAL; 140 adp->arg_inout = AI_INPUT; 141 adp->arg_object = NULL; 142 adp->arg_size = 0; 143 } else { 144 adp->arg_type = AT_BYREF; 145 adp->arg_inout = AI_OUTPUT; 146 #ifdef _LP64 147 if (victim32) { 148 adp->arg_object = (void *)&oitimerval32; 149 adp->arg_size = sizeof (oitimerval32); 150 } else { 151 adp->arg_object = oitv; 152 adp->arg_size = sizeof (*oitv); 153 } 154 #else /* _LP64 */ 155 adp->arg_object = oitv; 156 adp->arg_size = sizeof (*oitv); 157 #endif /* _LP64 */ 158 } 159 160 error = Psyscall(Pr, &rval, SYS_setitimer, 3, &argd[0]); 161 162 if (error) { 163 errno = (error > 0)? error : ENOSYS; 164 return (-1); 165 } 166 #ifdef _LP64 167 if (victim32 && oitv != NULL) { 168 ITIMERVAL32_TO_ITIMERVAL(oitv, &oitimerval32); 169 } 170 #endif /* _LP64 */ 171 return (rval.sys_rval1); 172 } 173