1 /* $NetBSD: linux_sigaction.c,v 1.17 1998/10/07 23:47:44 erh Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and Eric Haszlakiewicz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * heavily from: svr4_signal.c,v 1.7 1995/01/09 01:04:21 christos Exp 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/proc.h> 46 #include <sys/filedesc.h> 47 #include <sys/mount.h> 48 #include <sys/kernel.h> 49 #include <sys/signal.h> 50 #include <sys/signalvar.h> 51 52 #include <sys/syscallargs.h> 53 54 #include <compat/linux/common/linux_types.h> 55 #include <compat/linux/common/linux_signal.h> 56 #include <compat/linux/common/linux_util.h> 57 58 #include <compat/linux/linux_syscallargs.h> 59 60 /* Used on: alpha (aka osf_sigaction), arm, i386, m68k, mips, ppc */ 61 /* Not used on: sparc, sparc64 */ 62 63 /* 64 * The Linux sigaction() system call. Do the usual conversions, 65 * and just call sigaction(). 66 */ 67 int 68 linux_sys_sigaction(p, v, retval) 69 register struct proc *p; 70 void *v; 71 register_t *retval; 72 { 73 struct linux_sys_sigaction_args /* { 74 syscallarg(int) signum; 75 syscallarg(const struct linux_old_sigaction *) nsa; 76 syscallarg(struct linux_old_sigaction *) osa; 77 } */ *uap = v; 78 struct linux_old_sigaction nlsa, olsa; 79 struct sigaction nbsa, obsa; 80 int error; 81 82 /* XXX XAX handle switch to RT signal handler */ 83 /* XXX XAX and update emuldata->ps_siginfo. */ 84 85 if (SCARG(uap, nsa)) { 86 error = copyin(SCARG(uap, nsa), &nlsa, sizeof(nlsa)); 87 if (error) 88 return (error); 89 linux_old_to_native_sigaction(&nlsa, &nbsa); 90 } 91 error = sigaction1(p, linux_to_native_sig[SCARG(uap, signum)], 92 SCARG(uap, nsa) ? &nbsa : 0, SCARG(uap, osa) ? &obsa : 0); 93 if (error) 94 return (error); 95 if (SCARG(uap, osa)) { 96 native_to_linux_old_sigaction(&obsa, &olsa); 97 error = copyout(&olsa, SCARG(uap, osa), sizeof(olsa)); 98 if (error) 99 return (error); 100 } 101 return (0); 102 } 103