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Annotation of sys/compat/hpux/m68k/hpux_sig2.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: hpux_sig2.c,v 1.2 2004/09/28 11:00:22 miod Exp $      */
                      2: /*     $NetBSD: hpux_sig.c,v 1.16 1997/04/01 19:59:02 scottr Exp $     */
                      3:
                      4: /*
                      5:  * Copyright (c) 1988 University of Utah.
                      6:  * Copyright (c) 1990, 1993
                      7:  *     The Regents of the University of California.  All rights reserved.
                      8:  *
                      9:  * This code is derived from software contributed to Berkeley by
                     10:  * the Systems Programming Group of the University of Utah Computer
                     11:  * Science Department.
                     12:  *
                     13:  * Redistribution and use in source and binary forms, with or without
                     14:  * modification, are permitted provided that the following conditions
                     15:  * are met:
                     16:  * 1. Redistributions of source code must retain the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer.
                     18:  * 2. Redistributions in binary form must reproduce the above copyright
                     19:  *    notice, this list of conditions and the following disclaimer in the
                     20:  *    documentation and/or other materials provided with the distribution.
                     21:  * 3. Neither the name of the University nor the names of its contributors
                     22:  *    may be used to endorse or promote products derived from this software
                     23:  *    without specific prior written permission.
                     24:  *
                     25:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     26:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     27:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     28:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     29:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     30:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     31:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     32:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     33:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     34:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     35:  * SUCH DAMAGE.
                     36:  *
                     37:  * from: Utah $Hdr: hpux_sig.c 1.4 92/01/20$
                     38:  *
                     39:  *     @(#)hpux_sig.c  8.2 (Berkeley) 9/23/93
                     40:  */
                     41:
                     42: /*
                     43:  * Signal related HPUX compatibility routines
                     44:  */
                     45:
                     46: #include <sys/param.h>
                     47: #include <sys/systm.h>
                     48: #include <sys/kernel.h>
                     49: #include <sys/mount.h>
                     50: #include <sys/proc.h>
                     51: #include <sys/signalvar.h>
                     52: #include <sys/syscallargs.h>
                     53:
                     54: #include <compat/hpux/hpux.h>
                     55: #include <compat/hpux/hpux_sig.h>
                     56: #include <compat/hpux/m68k/hpux_syscallargs.h>
                     57:
                     58: int
                     59: hpux_sys_ssig_6x(p, v, retval)
                     60:        struct proc *p;
                     61:        void *v;
                     62:        register_t *retval;
                     63: {
                     64:        struct hpux_sys_ssig_6x_args /* {
                     65:                syscallarg(int) signo;
                     66:                syscallarg(sig_t) fun;
                     67:        } */ *uap = v;
                     68:        int a;
                     69:        struct sigaction vec;
                     70:        struct sigaction *sa = &vec;
                     71:
                     72:        a = hpuxtobsdsig(SCARG(uap, signo));
                     73:        sa->sa_handler = SCARG(uap, fun);
                     74:        /*
                     75:         * Kill processes trying to use job control facilities
                     76:         * (this'll help us find any vestiges of the old stuff).
                     77:         */
                     78:        if ((a &~ 0377) ||
                     79:            (sa->sa_handler != SIG_DFL && sa->sa_handler != SIG_IGN &&
                     80:             ((int)sa->sa_handler) & 1)) {
                     81:                psignal(p, SIGSYS);
                     82:                return (0);
                     83:        }
                     84:        if (a <= 0 || a >= NSIG || a == SIGKILL || a == SIGSTOP ||
                     85:            (a == SIGCONT && sa->sa_handler == SIG_IGN))
                     86:                return (EINVAL);
                     87:        sa->sa_mask = 0;
                     88:        sa->sa_flags = 0;
                     89:        *retval = (int)p->p_sigacts->ps_sigact[a];
                     90:        setsigvec(p, a, sa);
                     91: #if 0
                     92:        p->p_flag |= SOUSIG;            /* mark as simulating old stuff */
                     93: #endif
                     94:        return (0);
                     95: }