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