sys/compat/irix/irix_misc.c

   1 /*      $NetBSD: irix_misc.c,v 1.11 2007/12/20 23:02:50 dsl Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Emmanuel Dreyfus.
   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  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: irix_misc.c,v 1.11 2007/12/20 23:02:50 dsl Exp $");
  34
  35 #include <sys/types.h>
  36 #include <sys/signal.h>
  37 #include <sys/systm.h>
  38 #include <sys/param.h>
  39 #include <sys/kernel.h>
  40 #include <sys/proc.h>
  41 #include <sys/mount.h>
  42 #include <sys/syscallargs.h>
  43
  44 #include <compat/svr4/svr4_types.h>
  45 #include <compat/svr4/svr4_lwp.h>
  46 #include <compat/svr4/svr4_signal.h>
  47 #include <compat/svr4/svr4_ucontext.h>
  48 #include <compat/svr4/svr4_utsname.h>
  49 #include <compat/svr4/svr4_syscallargs.h>
  50
  51 #include <compat/irix/irix_types.h>
  52 #include <compat/irix/irix_signal.h>
  53 #include <compat/irix/irix_exec.h>
  54 #include <compat/irix/irix_sysctl.h>
  55 #include <compat/irix/irix_syscallargs.h>
  56
  57 /*
  58  * This is copied from sys/compat/sunos/sunos_misc.c:sunos_sys_setpgrp()
  59  * Maybe consider moving this to sys/compat/common/compat_util.c?
  60  */
  61 int
  62 irix_sys_setpgrp(struct lwp *l, const struct irix_sys_setpgrp_args *uap, register_t *retval)
  63 {
  64         /* {
  65                 syscallarg(int) pid;
  66                 syscallarg(int) pgid;
  67         } */
  68         struct proc *p = l->l_proc;
  69
  70         /*
  71          * difference to our setpgid call is to include backwards
  72          * compatibility to pre-setsid() binaries. Do setsid()
  73          * instead of setpgid() in those cases where the process
  74          * tries to create a new session the old way.
  75          */
  76         if (!SCARG(uap, pgid) &&
  77             (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid))
  78                 return sys_setsid(l, uap, retval);
  79         else
  80                 return sys_setpgid(l, (const void *)uap, retval);
  81 }
  82
  83 #define BUF_SIZE 16
  84
  85 int
  86 irix_sys_uname(struct lwp *l, const struct irix_sys_uname_args *uap, register_t *retval)
  87 {
  88         /* {
  89                 syscallarg(struct irix_utsname *) name;
  90         } */
  91         struct irix_utsname sut;
  92         char irix_release[BUF_SIZE + 1];
  93
  94         snprintf(irix_release, sizeof(irix_release), "%s.%s",
  95             irix_si_osrel_maj, irix_si_osrel_min);
  96         memset(&sut, 0, sizeof(sut));
  97
  98         strncpy(sut.sysname, irix_si_os_name, sizeof(sut.sysname));
  99         sut.sysname[sizeof(sut.sysname) - 1] = '\0';
 100
 101         strncpy(sut.nodename, hostname, sizeof(sut.nodename));
 102         sut.nodename[sizeof(sut.nodename) - 1] = '\0';
 103
 104         strncpy(sut.release, irix_release, sizeof(sut.release));
 105         sut.release[sizeof(sut.release) - 1] = '\0';
 106
 107         strncpy(sut.version, irix_si_version, sizeof(sut.version));
 108         sut.version[sizeof(sut.version) - 1] = '\0';
 109
 110         strncpy(sut.machine, irix_si_hw_name, sizeof(sut.machine));
 111         sut.machine[sizeof(sut.machine) - 1] = '\0';
 112
 113         return copyout((void *) &sut, (void *) SCARG(uap, name),
 114             sizeof(struct irix_utsname));
 115 }
 116
 117 int
 118 irix_sys_utssys(struct lwp *l, const struct irix_sys_utssys_args *uap, register_t *retval)
 119 {
 120         /* {
 121                 syscallarg(void *) a1;
 122                 syscallarg(void *) a2;
 123                 syscallarg(int) sel;
 124                 syscallarg(void) a3;
 125         } */
 126
 127         switch (SCARG(uap, sel)) {
 128         case 0: {       /* uname(2)  */
 129                 struct irix_sys_uname_args ua;
 130                 SCARG(&ua, name) = SCARG(uap, a1);
 131                 return irix_sys_uname(l, &ua, retval);
 132         }
 133         break;
 134
 135         default:
 136                 return(svr4_sys_utssys(l, (const void *)uap, retval));
 137         break;
 138         }
 139
 140         return 0;
 141 }