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 1997-2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/isa_defs.h> 30 31 #include <stdlib.h> 32 #include <unistd.h> 33 #include <signal.h> 34 #include <memory.h> 35 #include <errno.h> 36 37 #include "P32ton.h" 38 #include "libproc.h" 39 40 /* 41 * sigaction() system call -- executed by subject process. 42 */ 43 int 44 pr_sigaction(struct ps_prochandle *Pr, 45 int sig, const struct sigaction *act, struct sigaction *oact) 46 { 47 sysret_t rval; /* return value from sigaction() */ 48 argdes_t argd[3]; /* arg descriptors for sigaction() */ 49 argdes_t *adp; 50 int error; 51 #ifdef _LP64 52 struct sigaction32 act32; 53 struct sigaction32 oact32; 54 #endif /* _LP64 */ 55 56 if (Pr == NULL) /* no subject process */ 57 return (sigaction(sig, act, oact)); 58 59 adp = &argd[0]; /* sig argument */ 60 adp->arg_value = sig; 61 adp->arg_object = NULL; 62 adp->arg_type = AT_BYVAL; 63 adp->arg_inout = AI_INPUT; 64 adp->arg_size = 0; 65 66 adp++; /* act argument */ 67 adp->arg_value = 0; 68 if (act == NULL) { 69 adp->arg_type = AT_BYVAL; 70 adp->arg_inout = AI_INPUT; 71 adp->arg_object = NULL; 72 adp->arg_size = 0; 73 } else { 74 adp->arg_type = AT_BYREF; 75 adp->arg_inout = AI_INPUT; 76 #ifdef _LP64 77 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) { 78 sigaction_n_to_32(act, &act32); 79 adp->arg_object = &act32; 80 adp->arg_size = sizeof (act32); 81 } else { 82 adp->arg_object = (void *)act; 83 adp->arg_size = sizeof (*act); 84 } 85 #else /* _LP64 */ 86 adp->arg_object = (void *)act; 87 adp->arg_size = sizeof (*act); 88 #endif /* _LP64 */ 89 } 90 91 adp++; /* oact argument */ 92 adp->arg_value = 0; 93 if (oact == NULL) { 94 adp->arg_type = AT_BYVAL; 95 adp->arg_inout = AI_INPUT; 96 adp->arg_object = NULL; 97 adp->arg_size = 0; 98 } else { 99 adp->arg_type = AT_BYREF; 100 adp->arg_inout = AI_OUTPUT; 101 #ifdef _LP64 102 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) { 103 adp->arg_object = &oact32; 104 adp->arg_size = sizeof (oact32); 105 } else { 106 adp->arg_object = oact; 107 adp->arg_size = sizeof (*oact); 108 } 109 #else /* _LP64 */ 110 adp->arg_object = oact; 111 adp->arg_size = sizeof (*oact); 112 #endif /* _LP64 */ 113 } 114 115 error = Psyscall(Pr, &rval, SYS_sigaction, 3, &argd[0]); 116 117 if (error) { 118 errno = (error > 0)? error : ENOSYS; 119 return (-1); 120 } 121 #ifdef _LP64 122 if (oact != NULL && Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) 123 sigaction_32_to_n(&oact32, oact); 124 #endif /* _LP64 */ 125 return (rval.sys_rval1); 126 } 127