The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/compat/svr4_32/svr4_32_misc.c

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    1 /*      $NetBSD: svr4_32_misc.c,v 1.39.2.1 2010/06/12 18:38:01 riz Exp $         */
    2 
    3 /*-
    4  * Copyright (c) 1994 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Christos Zoulas.
    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  * SVR4 compatibility module.
   41  *
   42  * SVR4 system calls that are implemented differently in BSD are
   43  * handled here.
   44  */
   45 
   46 #include <sys/cdefs.h>
   47 __KERNEL_RCSID(0, "$NetBSD: svr4_32_misc.c,v 1.39.2.1 2010/06/12 18:38:01 riz Exp $");
   48 
   49 #include <sys/param.h>
   50 #include <sys/systm.h>
   51 #include <sys/namei.h>
   52 #include <sys/dirent.h>
   53 #include <sys/proc.h>
   54 #include <sys/file.h>
   55 #include <sys/stat.h>
   56 #include <sys/time.h>
   57 #include <sys/filedesc.h>
   58 #include <sys/ioctl.h>
   59 #include <sys/kernel.h>
   60 #include <sys/malloc.h>
   61 #include <sys/pool.h>
   62 #include <sys/mbuf.h>
   63 #include <sys/mman.h>
   64 #include <sys/mount.h>
   65 #include <sys/resource.h>
   66 #include <sys/resourcevar.h>
   67 #include <sys/socket.h>
   68 #include <sys/vnode.h>
   69 #include <sys/uio.h>
   70 #include <sys/wait.h>
   71 #include <sys/utsname.h>
   72 #include <sys/unistd.h>
   73 #include <sys/times.h>
   74 #include <sys/sem.h>
   75 #include <sys/msg.h>
   76 #include <sys/ptrace.h>
   77 #include <sys/signalvar.h>
   78 
   79 #include <netinet/in.h>
   80 #include <sys/sa.h>
   81 #include <sys/syscallargs.h>
   82 
   83 #include <miscfs/specfs/specdev.h>
   84 
   85 #include <compat/svr4_32/svr4_32_types.h>
   86 #include <compat/svr4_32/svr4_32_signal.h>
   87 #include <compat/svr4_32/svr4_32_lwp.h>
   88 #include <compat/svr4_32/svr4_32_ucontext.h>
   89 #include <compat/svr4_32/svr4_32_syscallargs.h>
   90 #include <compat/svr4_32/svr4_32_util.h>
   91 #include <compat/svr4_32/svr4_32_time.h>
   92 #include <compat/svr4_32/svr4_32_dirent.h>
   93 #include <compat/svr4/svr4_ulimit.h>
   94 #include <compat/svr4_32/svr4_32_hrt.h>
   95 #include <compat/svr4/svr4_wait.h>
   96 #include <compat/svr4_32/svr4_32_statvfs.h>
   97 #include <compat/svr4/svr4_sysconfig.h>
   98 #include <compat/svr4_32/svr4_32_acl.h>
   99 #include <compat/svr4/svr4_mman.h>
  100 
  101 #include <machine/cpu.h>
  102 
  103 #include <uvm/uvm_extern.h>
  104 
  105 static int svr4_to_bsd_mmap_flags __P((int));
  106 
  107 static inline clock_t timeval_to_clock_t __P((struct timeval *));
  108 static int svr4_32_setinfo      __P((struct proc *, int, svr4_32_siginfo_tp));
  109 
  110 struct svr4_32_hrtcntl_args;
  111 static int svr4_32_hrtcntl      __P((struct proc *, struct svr4_32_hrtcntl_args *,
  112     register_t *));
  113 static void bsd_statvfs_to_svr4_32_statvfs __P((const struct statvfs *,
  114     struct svr4_32_statvfs *));
  115 static void bsd_statvfs_to_svr4_32_statvfs64 __P((const struct statvfs *,
  116     struct svr4_32_statvfs64 *));
  117 static int svr4_copystatvfs64(struct svr4_32_statvfs64 *, const struct statvfs *);
  118 static int svr4_copystatvfs(struct svr4_32_statvfs *, const struct statvfs *);
  119 #define svr4_32_pfind(pid) p_find((pid), PFIND_UNLOCK | PFIND_ZOMBIE)
  120 
  121 static int svr4_32_mknod __P((struct lwp *, register_t *, const char *,
  122     svr4_32_mode_t, svr4_32_dev_t));
  123 
  124 int
  125 svr4_32_sys_wait(l, v, retval)
  126         struct lwp *l;
  127         void *v;
  128         register_t *retval;
  129 {
  130         struct svr4_32_sys_wait_args *uap = v;
  131         struct proc *p = l->l_proc;
  132         struct sys_wait4_args w4;
  133         int error;
  134         size_t sz = sizeof(*SCARG(&w4, status));
  135         int st, sig;
  136 
  137         SCARG(&w4, rusage) = NULL;
  138         SCARG(&w4, options) = 0;
  139 
  140         if (SCARG(uap, status) == 0) {
  141                 caddr_t sg = stackgap_init(p, 0);
  142 
  143                 SCARG(&w4, status) = stackgap_alloc(p, &sg, sz);
  144         }
  145         else
  146                 SCARG(&w4, status) = (int *)(u_long)SCARG(uap, status);
  147 
  148         SCARG(&w4, pid) = WAIT_ANY;
  149 
  150         if ((error = sys_wait4(l, &w4, retval)) != 0)
  151                 return error;
  152 
  153         if ((error = copyin(SCARG(&w4, status), &st, sizeof(st))) != 0)
  154                 return error;
  155 
  156         if (WIFSIGNALED(st)) {
  157                 sig = WTERMSIG(st);
  158                 if (sig >= 0 && sig < NSIG)
  159                         st = (st & ~0177) | native_to_svr4_signo[sig];
  160         } else if (WIFSTOPPED(st)) {
  161                 sig = WSTOPSIG(st);
  162                 if (sig >= 0 && sig < NSIG)
  163                         st = (st & ~0xff00) | (native_to_svr4_signo[sig] << 8);
  164         }
  165 
  166         /*
  167          * It looks like wait(2) on svr4/solaris/2.4 returns
  168          * the status in retval[1], and the pid on retval[0].
  169          */
  170         retval[1] = st;
  171 
  172         if (SCARG(uap, status))
  173                 if ((error = copyout(&st, (caddr_t)(u_long)SCARG(uap, status),
  174                                      sizeof(st))) != 0)
  175                         return error;
  176 
  177         return 0;
  178 }
  179 
  180 
  181 int
  182 svr4_32_sys_execv(l, v, retval)
  183         struct lwp *l;
  184         void *v;
  185         register_t *retval;
  186 {
  187         struct svr4_32_sys_execv_args /* {
  188                 syscallarg(char *) path;
  189                 syscallarg(char **) argv;
  190         } */ *uap = v;
  191         struct netbsd32_execve_args_noconst {
  192                 syscallarg(netbsd32_charp) path;
  193                 syscallarg(netbsd32_charpp) argp;
  194                 syscallarg(netbsd32_charpp) envp;
  195         } ap;
  196 
  197         SCARG(&ap, path) = SCARG(uap, path);
  198         SCARG(&ap, argp) = SCARG(uap, argp);
  199         SCARG(&ap, envp) = 0;
  200 
  201         return netbsd32_execve(l, &ap, retval);
  202 }
  203 
  204 #if 0
  205 int
  206 svr4_32_sys_execve(p, v, retval)
  207         struct proc *p;
  208         void *v;
  209         register_t *retval;
  210 {
  211         struct svr4_32_sys_execve_args /* {
  212                 syscallarg(const char *) path;
  213                 syscallarg(char **) argv;
  214                 syscallarg(char **) envp;
  215         } */ *uap = v;
  216         struct sys_execve_args ap;
  217         caddr_t sg;
  218 
  219         sg = stackgap_init(p, 0);
  220 
  221         SCARG(&ap, path) = (const char *)(u_long)SCARG(uap, path);
  222         CHECK_ALT_EXIST(l, &sg, SCARG(&ap, path));
  223         SCARG(&ap, argp) = (char **)(u_long)SCARG(uap, argp);
  224         SCARG(&ap, envp) = (char **)(u_long)SCARG(uap, envp);
  225 
  226         return netbsd32_execve(p, &ap, retval);
  227 }
  228 #endif
  229 
  230 int
  231 svr4_32_sys_time(l, v, retval)
  232         struct lwp *l;
  233         void *v;
  234         register_t *retval;
  235 {
  236         struct svr4_32_sys_time_args *uap = v;
  237         int error = 0;
  238         struct timeval tv;
  239         struct netbsd32_timeval ntv;
  240 
  241         microtime(&tv);
  242         ntv.tv_sec = tv.tv_sec;
  243         ntv.tv_usec = tv.tv_usec;
  244         if (SCARG(uap, t))
  245                 error = copyout(&ntv.tv_sec, (caddr_t)(u_long)SCARG(uap, t),
  246                                 sizeof(ntv.tv_sec));
  247         *retval = (int) ntv.tv_sec;
  248 
  249         return error;
  250 }
  251 
  252 
  253 /*
  254  * Read SVR4-style directory entries.  We suck them into kernel space so
  255  * that they can be massaged before being copied out to user code.  Like
  256  * SunOS, we squish out `empty' entries.
  257  *
  258  * This is quite ugly, but what do you expect from compatibility code?
  259  */
  260 int
  261 svr4_32_sys_getdents64(l, v, retval)
  262         struct lwp *l;
  263         void *v;
  264         register_t *retval;
  265 {
  266         struct svr4_32_sys_getdents64_args *uap = v;
  267         struct proc *p = l->l_proc;
  268         struct dirent *bdp;
  269         struct vnode *vp;
  270         caddr_t inp, sbuf;      /* BSD-format */
  271         int len, reclen;        /* BSD-format */
  272         caddr_t outp;           /* SVR4-format */
  273         int resid, svr4_32_reclen;      /* SVR4-format */
  274         struct file *fp;
  275         struct uio auio;
  276         struct iovec aiov;
  277         struct svr4_32_dirent64 idb;
  278         off_t off;              /* true file offset */
  279         int buflen, error, eofflag;
  280         off_t *cookiebuf = NULL, *cookie;
  281         int ncookies;
  282 
  283         /* getvnode() will use the descriptor for us */
  284         if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
  285                 return (error);
  286 
  287         if ((fp->f_flag & FREAD) == 0) {
  288                 error = EBADF;
  289                 goto out1;
  290         }
  291 
  292         vp = (struct vnode *)fp->f_data;
  293         if (vp->v_type != VDIR) {
  294                 error = EINVAL;
  295                 goto out1;
  296         }
  297 
  298         buflen = min(MAXBSIZE, SCARG(uap, nbytes));
  299         sbuf = malloc(buflen, M_TEMP, M_WAITOK);
  300         vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
  301         off = fp->f_offset;
  302 again:
  303         aiov.iov_base = sbuf;
  304         aiov.iov_len = buflen;
  305         auio.uio_iov = &aiov;
  306         auio.uio_iovcnt = 1;
  307         auio.uio_rw = UIO_READ;
  308         auio.uio_resid = buflen;
  309         auio.uio_offset = off;
  310         UIO_SETUP_SYSSPACE(&auio);
  311         /*
  312          * First we read into the malloc'ed buffer, then
  313          * we massage it into user space, one record at a time.
  314          */
  315         error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
  316             &ncookies);
  317         if (error)
  318                 goto out;
  319 
  320         inp = sbuf;
  321         outp = (char *)(u_long) SCARG(uap, dp);
  322         resid = SCARG(uap, nbytes);
  323         if ((len = buflen - auio.uio_resid) == 0)
  324                 goto eof;
  325 
  326         for (cookie = cookiebuf; len > 0; len -= reclen) {
  327                 bdp = (struct dirent *)inp;
  328                 reclen = bdp->d_reclen;
  329                 if (reclen & 3)
  330                         panic("svr4_32_getdents64: bad reclen");
  331                 if (bdp->d_fileno == 0) {
  332                         inp += reclen;  /* it is a hole; squish it out */
  333                         if (cookie)
  334                                 off = *cookie++;
  335                         else
  336                                 off += reclen;
  337                         continue;
  338                 }
  339                 svr4_32_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
  340                 if (reclen > len || resid < svr4_32_reclen) {
  341                         /* entry too big for buffer, so just stop */
  342                         outp++;
  343                         break;
  344                 }
  345                 if (cookie)
  346                         off = *cookie++; /* each entry points to the next */
  347                 else
  348                         off += reclen;
  349                 /*
  350                  * Massage in place to make a SVR4-shaped dirent (otherwise
  351                  * we have to worry about touching user memory outside of
  352                  * the copyout() call).
  353                  */
  354                 idb.d_ino = (svr4_32_ino64_t)bdp->d_fileno;
  355                 idb.d_off = (svr4_32_off64_t)off;
  356                 idb.d_reclen = (u_short)svr4_32_reclen;
  357                 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
  358                 if ((error = copyout((caddr_t)&idb, outp, svr4_32_reclen)))
  359                         goto out;
  360                 /* advance past this real entry */
  361                 inp += reclen;
  362                 /* advance output past SVR4-shaped entry */
  363                 outp += svr4_32_reclen;
  364                 resid -= svr4_32_reclen;
  365         }
  366 
  367         /* if we squished out the whole block, try again */
  368         if (outp == (char *)(u_long) SCARG(uap, dp)) {
  369                 if (cookiebuf)
  370                         free(cookiebuf, M_TEMP);
  371                 cookiebuf = NULL;
  372                 goto again;
  373         }
  374         fp->f_offset = off;     /* update the vnode offset */
  375 
  376 eof:
  377         *retval = SCARG(uap, nbytes) - resid;
  378 out:
  379         VOP_UNLOCK(vp, 0);
  380         if (cookiebuf)
  381                 free(cookiebuf, M_TEMP);
  382         free(sbuf, M_TEMP);
  383  out1:
  384         FILE_UNUSE(fp, l);
  385         return error;
  386 }
  387 
  388 
  389 int
  390 svr4_32_sys_getdents(l, v, retval)
  391         struct lwp *l;
  392         void *v;
  393         register_t *retval;
  394 {
  395         struct svr4_32_sys_getdents_args *uap = v;
  396         struct proc *p = l->l_proc;
  397         struct dirent *bdp;
  398         struct vnode *vp;
  399         caddr_t inp, sbuf;      /* BSD-format */
  400         int len, reclen;        /* BSD-format */
  401         caddr_t outp;           /* SVR4-format */
  402         int resid, svr4_reclen; /* SVR4-format */
  403         struct file *fp;
  404         struct uio auio;
  405         struct iovec aiov;
  406         struct svr4_32_dirent idb;
  407         off_t off;              /* true file offset */
  408         int buflen, error, eofflag;
  409         off_t *cookiebuf = NULL, *cookie;
  410         int ncookies;
  411 
  412         /* getvnode() will use the descriptor for us */
  413         if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
  414                 return (error);
  415 
  416         if ((fp->f_flag & FREAD) == 0) {
  417                 error = EBADF;
  418                 goto out1;
  419         }
  420 
  421         vp = (struct vnode *)fp->f_data;
  422         if (vp->v_type != VDIR) {
  423                 error = EINVAL;
  424                 goto out1;
  425         }
  426 
  427         buflen = min(MAXBSIZE, SCARG(uap, nbytes));
  428         sbuf = malloc(buflen, M_TEMP, M_WAITOK);
  429         vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
  430         off = fp->f_offset;
  431 again:
  432         aiov.iov_base = sbuf;
  433         aiov.iov_len = buflen;
  434         auio.uio_iov = &aiov;
  435         auio.uio_iovcnt = 1;
  436         auio.uio_rw = UIO_READ;
  437         auio.uio_resid = buflen;
  438         auio.uio_offset = off;
  439         UIO_SETUP_SYSSPACE(&auio);
  440         /*
  441          * First we read into the malloc'ed buffer, then
  442          * we massage it into user space, one record at a time.
  443          */
  444         error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
  445             &ncookies);
  446         if (error)
  447                 goto out;
  448 
  449         inp = sbuf;
  450         outp = (caddr_t)(u_long)SCARG(uap, buf);
  451         resid = SCARG(uap, nbytes);
  452         if ((len = buflen - auio.uio_resid) == 0)
  453                 goto eof;
  454 
  455         for (cookie = cookiebuf; len > 0; len -= reclen) {
  456                 bdp = (struct dirent *)inp;
  457                 reclen = bdp->d_reclen;
  458                 if (reclen & 3)
  459                         panic("svr4_32_getdents: bad reclen");
  460                 if (cookie)
  461                         off = *cookie++; /* each entry points to the next */
  462                 else
  463                         off += reclen;
  464                 if ((off >> 32) != 0) {
  465                         compat_offseterr(vp, "svr4_32_getdents");
  466                         error = EINVAL;
  467                         goto out;
  468                 }
  469                 if (bdp->d_fileno == 0) {
  470                         inp += reclen;  /* it is a hole; squish it out */
  471                         continue;
  472                 }
  473                 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen);
  474                 if (reclen > len || resid < svr4_reclen) {
  475                         /* entry too big for buffer, so just stop */
  476                         outp++;
  477                         break;
  478                 }
  479                 /*
  480                  * Massage in place to make a SVR4-shaped dirent (otherwise
  481                  * we have to worry about touching user memory outside of
  482                  * the copyout() call).
  483                  */
  484                 idb.d_ino = (svr4_32_ino_t)bdp->d_fileno;
  485                 idb.d_off = (svr4_32_off_t)off;
  486                 idb.d_reclen = (u_short)svr4_reclen;
  487                 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
  488                 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen)))
  489                         goto out;
  490                 /* advance past this real entry */
  491                 inp += reclen;
  492                 /* advance output past SVR4-shaped entry */
  493                 outp += svr4_reclen;
  494                 resid -= svr4_reclen;
  495         }
  496 
  497         /* if we squished out the whole block, try again */
  498         if (outp == (caddr_t)(u_long)SCARG(uap, buf)) {
  499                 if (cookiebuf)
  500                         free(cookiebuf, M_TEMP);
  501                 cookiebuf = NULL;
  502                 goto again;
  503         }
  504         fp->f_offset = off;     /* update the vnode offset */
  505 
  506 eof:
  507         *retval = SCARG(uap, nbytes) - resid;
  508 out:
  509         VOP_UNLOCK(vp, 0);
  510         if (cookiebuf)
  511                 free(cookiebuf, M_TEMP);
  512         free(sbuf, M_TEMP);
  513  out1:
  514         FILE_UNUSE(fp, l);
  515         return error;
  516 }
  517 
  518 
  519 static int
  520 svr4_to_bsd_mmap_flags(f)
  521         int f;
  522 {
  523         int type = f & SVR4_MAP_TYPE;
  524         int nf;
  525 
  526         if (type != MAP_PRIVATE && type != MAP_SHARED)
  527                 return -1;
  528 
  529         nf = f & SVR4_MAP_COPYFLAGS;
  530         if (f & SVR4_MAP_ANON)
  531         nf |= MAP_ANON;
  532 
  533         return nf;
  534 }
  535 
  536 
  537 int
  538 svr4_32_sys_mmap(l, v, retval)
  539         struct lwp *l;
  540         void *v;
  541         register_t *retval;
  542 {
  543         struct svr4_32_sys_mmap_args    *uap = v;
  544         struct sys_mmap_args             mm;
  545         int                              error;
  546         /*
  547          * Verify the arguments.
  548          */
  549         if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
  550                 return EINVAL;  /* XXX still needed? */
  551 
  552         if (SCARG(uap, len) == 0)
  553                 return EINVAL;
  554 
  555         if ((SCARG(&mm, flags) = svr4_to_bsd_mmap_flags(SCARG(uap, flags))) == -1)
  556                 return EINVAL;
  557 
  558         SCARG(&mm, prot) = SCARG(uap, prot);
  559         SCARG(&mm, len) = SCARG(uap, len);
  560         SCARG(&mm, fd) = SCARG(uap, fd);
  561         SCARG(&mm, addr) = (void *)(u_long)SCARG(uap, addr);
  562         SCARG(&mm, pos) = SCARG(uap, pos);
  563 
  564         error = sys_mmap(l, &mm, retval);
  565         if ((u_long)*retval > (u_long)UINT_MAX) {
  566                 printf("svr4_32_mmap: retval out of range: 0x%lx",
  567                        (u_long)*retval);
  568                 /* Should try to recover and return an error here. */
  569         }
  570         return (error);
  571 }
  572 
  573 
  574 int
  575 svr4_32_sys_mmap64(l, v, retval)
  576         struct lwp *l;
  577         void *v;
  578         register_t *retval;
  579 {
  580         struct svr4_32_sys_mmap64_args  *uap = v;
  581         struct sys_mmap_args             mm;
  582         int                              error;
  583         /*
  584          * Verify the arguments.
  585          */
  586         if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
  587                 return EINVAL;  /* XXX still needed? */
  588 
  589         if (SCARG(uap, len) == 0)
  590                 return EINVAL;
  591 
  592         if ((SCARG(&mm, flags) = svr4_to_bsd_mmap_flags(SCARG(uap, flags))) == -1)
  593                 return EINVAL;
  594 
  595         SCARG(&mm, prot) = SCARG(uap, prot);
  596         SCARG(&mm, len) = SCARG(uap, len);
  597         SCARG(&mm, fd) = SCARG(uap, fd);
  598         SCARG(&mm, addr) = (void *)(u_long)SCARG(uap, addr);
  599         SCARG(&mm, pos) = SCARG(uap, pos);
  600 
  601         error = sys_mmap(l, &mm, retval);
  602         if ((u_long)*retval > (u_long)UINT_MAX) {
  603                 printf("svr4_32_mmap64: retval out of range: 0x%lx",
  604                        (u_long)*retval);
  605                 /* Should try to recover and return an error here. */
  606         }
  607         return (error);
  608 }
  609 
  610 
  611 static int
  612 svr4_32_mknod(l, retval, path, mode, dev)
  613         struct lwp *l;
  614         register_t *retval;
  615         const char *path;
  616         svr4_32_mode_t mode;
  617         svr4_32_dev_t dev;
  618 {
  619         caddr_t sg = stackgap_init(l->l_proc, 0);
  620 
  621         CHECK_ALT_CREAT(l, &sg, path);
  622 
  623         if (S_ISFIFO(mode)) {
  624                 struct sys_mkfifo_args ap;
  625                 SCARG(&ap, path) = path;
  626                 SCARG(&ap, mode) = mode;
  627                 return sys_mkfifo(l, &ap, retval);
  628         } else {
  629                 struct sys_mknod_args ap;
  630                 SCARG(&ap, path) = path;
  631                 SCARG(&ap, mode) = mode;
  632                 SCARG(&ap, dev) = dev;
  633                 return sys_mknod(l, &ap, retval);
  634         }
  635 }
  636 
  637 
  638 int
  639 svr4_32_sys_mknod(l, v, retval)
  640         struct lwp *l;
  641         void *v;
  642         register_t *retval;
  643 {
  644         struct svr4_32_sys_mknod_args *uap = v;
  645         return svr4_32_mknod(l, retval,
  646                           (caddr_t)(u_long)SCARG(uap, path), SCARG(uap, mode),
  647                           svr4_32_to_bsd_odev_t(SCARG(uap, dev)));
  648 }
  649 
  650 
  651 int
  652 svr4_32_sys_xmknod(l, v, retval)
  653         struct lwp *l;
  654         void *v;
  655         register_t *retval;
  656 {
  657         struct svr4_32_sys_xmknod_args *uap = v;
  658         return svr4_32_mknod(l, retval,
  659                           (caddr_t)(u_long)SCARG(uap, path), SCARG(uap, mode),
  660                           svr4_32_to_bsd_dev_t(SCARG(uap, dev)));
  661 }
  662 
  663 
  664 int
  665 svr4_32_sys_vhangup(l, v, retval)
  666         struct lwp *l;
  667         void *v;
  668         register_t *retval;
  669 {
  670         return 0;
  671 }
  672 
  673 
  674 int
  675 svr4_32_sys_sysconfig(l, v, retval)
  676         struct lwp *l;
  677         void *v;
  678         register_t *retval;
  679 {
  680         struct svr4_32_sys_sysconfig_args *uap = v;
  681         extern int      maxfiles;
  682         int active;
  683 
  684         switch (SCARG(uap, name)) {
  685         case SVR4_CONFIG_NGROUPS:
  686                 *retval = NGROUPS_MAX;
  687                 break;
  688         case SVR4_CONFIG_CHILD_MAX:
  689                 *retval = maxproc;
  690                 break;
  691         case SVR4_CONFIG_OPEN_FILES:
  692                 *retval = maxfiles;
  693                 break;
  694         case SVR4_CONFIG_POSIX_VER:
  695                 *retval = 198808;
  696                 break;
  697         case SVR4_CONFIG_PAGESIZE:
  698                 *retval = PAGE_SIZE;
  699                 break;
  700         case SVR4_CONFIG_CLK_TCK:
  701                 *retval = 60;   /* should this be `hz', ie. 100? */
  702                 break;
  703         case SVR4_CONFIG_XOPEN_VER:
  704                 *retval = 2;    /* XXX: What should that be? */
  705                 break;
  706         case SVR4_CONFIG_PROF_TCK:
  707                 *retval = 60;   /* XXX: What should that be? */
  708                 break;
  709         case SVR4_CONFIG_NPROC_CONF:
  710                 *retval = 1;    /* Only one processor for now */
  711                 break;
  712         case SVR4_CONFIG_NPROC_ONLN:
  713                 *retval = 1;    /* And it better be online */
  714                 break;
  715         case SVR4_CONFIG_AIO_LISTIO_MAX:
  716         case SVR4_CONFIG_AIO_MAX:
  717         case SVR4_CONFIG_AIO_PRIO_DELTA_MAX:
  718                 *retval = 0;    /* No aio support */
  719                 break;
  720         case SVR4_CONFIG_DELAYTIMER_MAX:
  721                 *retval = 0;    /* No delaytimer support */
  722                 break;
  723         case SVR4_CONFIG_MQ_OPEN_MAX:
  724 #ifdef SYSVMSG
  725                 *retval = msginfo.msgmni;
  726 #else
  727                 *retval = 0;
  728 #endif
  729                 break;
  730         case SVR4_CONFIG_MQ_PRIO_MAX:
  731                 *retval = 0;    /* XXX: Don't know */
  732                 break;
  733         case SVR4_CONFIG_RTSIG_MAX:
  734                 *retval = 0;
  735                 break;
  736         case SVR4_CONFIG_SEM_NSEMS_MAX:
  737 #ifdef SYSVSEM
  738                 *retval = seminfo.semmni;
  739 #else
  740                 *retval = 0;
  741 #endif
  742                 break;
  743         case SVR4_CONFIG_SEM_VALUE_MAX:
  744 #ifdef SYSVSEM
  745                 *retval = seminfo.semvmx;
  746 #else
  747                 *retval = 0;
  748 #endif
  749                 break;
  750         case SVR4_CONFIG_SIGQUEUE_MAX:
  751                 *retval = 0;    /* XXX: Don't know */
  752                 break;
  753         case SVR4_CONFIG_SIGRT_MIN:
  754         case SVR4_CONFIG_SIGRT_MAX:
  755                 *retval = 0;    /* No real time signals */
  756                 break;
  757         case SVR4_CONFIG_TIMER_MAX:
  758                 *retval = 3;    /* XXX: real, virtual, profiling */
  759                 break;
  760         case SVR4_CONFIG_PHYS_PAGES:
  761                 *retval = uvmexp.free;  /* XXX: free instead of total */
  762                 break;
  763         case SVR4_CONFIG_AVPHYS_PAGES:
  764                 uvm_estimatepageable(&active, NULL);
  765                 *retval = active;       /* XXX: active instead of avg */
  766                 break;
  767         case SVR4_CONFIG_COHERENCY:
  768                 *retval = 0;    /* XXX */
  769                 break;
  770         case SVR4_CONFIG_SPLIT_CACHE:
  771                 *retval = 0;    /* XXX */
  772                 break;
  773         case SVR4_CONFIG_ICACHESZ:
  774                 *retval = 256;  /* XXX */
  775                 break;
  776         case SVR4_CONFIG_DCACHESZ:
  777                 *retval = 256;  /* XXX */
  778                 break;
  779         case SVR4_CONFIG_ICACHELINESZ:
  780                 *retval = 64;   /* XXX */
  781                 break;
  782         case SVR4_CONFIG_DCACHELINESZ:
  783                 *retval = 64;   /* XXX */
  784                 break;
  785         case SVR4_CONFIG_ICACHEBLKSZ:
  786                 *retval = 64;   /* XXX */
  787                 break;
  788         case SVR4_CONFIG_DCACHEBLKSZ:
  789                 *retval = 64;   /* XXX */
  790                 break;
  791         case SVR4_CONFIG_DCACHETBLKSZ:
  792                 *retval = 64;   /* XXX */
  793                 break;
  794         case SVR4_CONFIG_ICACHE_ASSOC:
  795                 *retval = 1;    /* XXX */
  796                 break;
  797         case SVR4_CONFIG_DCACHE_ASSOC:
  798                 *retval = 1;    /* XXX */
  799                 break;
  800         case SVR4_CONFIG_MAXPID:
  801                 *retval = PID_MAX;
  802                 break;
  803         case SVR4_CONFIG_STACK_PROT:
  804                 *retval = PROT_READ|PROT_WRITE|PROT_EXEC;
  805                 break;
  806         default:
  807                 return EINVAL;
  808         }
  809         return 0;
  810 }
  811 
  812 
  813 /* ARGSUSED */
  814 int
  815 svr4_32_sys_break(l, v, retval)
  816         struct lwp *l;
  817         void *v;
  818         register_t *retval;
  819 {
  820         struct svr4_32_sys_break_args *uap = v;
  821         struct proc *p = l->l_proc;
  822         struct vmspace *vm = p->p_vmspace;
  823         vaddr_t new, old;
  824         int error;
  825 
  826         old = (vaddr_t) vm->vm_daddr;
  827         new = round_page((vaddr_t)SCARG(uap, nsize));
  828 
  829         if (new - old > p->p_rlimit[RLIMIT_DATA].rlim_cur && new > old)
  830                 return ENOMEM;
  831 
  832         old = round_page(old + ctob(vm->vm_dsize));
  833         DPRINTF(("break(2): dsize = %x ctob %x\n",
  834                  vm->vm_dsize, ctob(vm->vm_dsize)));
  835 
  836         if (new > old) {
  837                 error = uvm_map(&vm->vm_map, &old, new - old, NULL,
  838                         UVM_UNKNOWN_OFFSET, 0,
  839                         UVM_MAPFLAG(UVM_PROT_ALL, UVM_PROT_ALL, UVM_INH_COPY,
  840                         UVM_ADV_NORMAL,
  841                         UVM_FLAG_AMAPPAD|UVM_FLAG_FIXED|
  842                         UVM_FLAG_OVERLAY|UVM_FLAG_COPYONW));
  843                 if (error) {
  844                         uprintf("sbrk: grow failed, return = %d\n", error);
  845                         return error;
  846                 }
  847                 vm->vm_dsize += btoc(new - old);
  848         } else if (new < old) {
  849                 uvm_deallocate(&vm->vm_map, new, old - new);
  850                 vm->vm_dsize -= btoc(old - new);
  851         }
  852         return 0;
  853 }
  854 
  855 
  856 static inline clock_t
  857 timeval_to_clock_t(tv)
  858         struct timeval *tv;
  859 {
  860         return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
  861 }
  862 
  863 
  864 int
  865 svr4_32_sys_times(l, v, retval)
  866         struct lwp *l;
  867         void *v;
  868         register_t *retval;
  869 {
  870         struct svr4_32_sys_times_args *uap = v;
  871         struct proc             *p = l->l_proc;
  872         int                      error;
  873         struct tms               tms;
  874         struct timeval           t;
  875         struct rusage           *ru;
  876         struct rusage            r;
  877         struct sys_getrusage_args        ga;
  878 
  879         caddr_t sg = stackgap_init(p, 0);
  880         ru = stackgap_alloc(p, &sg, sizeof(struct rusage));
  881 
  882         SCARG(&ga, who) = RUSAGE_SELF;
  883         SCARG(&ga, rusage) = ru;
  884 
  885         error = sys_getrusage(l, &ga, retval);
  886         if (error)
  887                 return error;
  888 
  889         if ((error = copyin(ru, &r, sizeof r)) != 0)
  890                 return error;
  891 
  892         tms.tms_utime = timeval_to_clock_t(&r.ru_utime);
  893         tms.tms_stime = timeval_to_clock_t(&r.ru_stime);
  894 
  895         SCARG(&ga, who) = RUSAGE_CHILDREN;
  896         error = sys_getrusage(l, &ga, retval);
  897         if (error)
  898                 return error;
  899 
  900         if ((error = copyin(ru, &r, sizeof r)) != 0)
  901                 return error;
  902 
  903         tms.tms_cutime = timeval_to_clock_t(&r.ru_utime);
  904         tms.tms_cstime = timeval_to_clock_t(&r.ru_stime);
  905 
  906         microtime(&t);
  907         *retval = timeval_to_clock_t(&t);
  908 
  909         return copyout(&tms, (caddr_t)(u_long)SCARG(uap, tp), sizeof(tms));
  910 }
  911 
  912 
  913 int
  914 svr4_32_sys_ulimit(l, v, retval)
  915         struct lwp *l;
  916         void *v;
  917         register_t *retval;
  918 {
  919         struct svr4_32_sys_ulimit_args *uap = v;
  920         struct proc *p = l->l_proc;
  921 
  922         switch (SCARG(uap, cmd)) {
  923         case SVR4_GFILLIM:
  924                 *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur / 512;
  925                 if (*retval == -1)
  926                         *retval = 0x7fffffff;
  927                 return 0;
  928 
  929         case SVR4_SFILLIM:
  930                 {
  931                         int error;
  932                         struct sys_setrlimit_args srl;
  933                         struct rlimit krl;
  934                         caddr_t sg = stackgap_init(p, 0);
  935                         struct rlimit *url = (struct rlimit *)
  936                                 stackgap_alloc(p, &sg, sizeof *url);
  937 
  938                         krl.rlim_cur = SCARG(uap, newlimit) * 512;
  939                         krl.rlim_max = p->p_rlimit[RLIMIT_FSIZE].rlim_max;
  940 
  941                         error = copyout(&krl, url, sizeof(*url));
  942                         if (error)
  943                                 return error;
  944 
  945                         SCARG(&srl, which) = RLIMIT_FSIZE;
  946                         SCARG(&srl, rlp) = url;
  947 
  948                         error = sys_setrlimit(l, &srl, retval);
  949                         if (error)
  950                                 return error;
  951 
  952                         *retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
  953                         if (*retval == -1)
  954                                 *retval = 0x7fffffff;
  955                         return 0;
  956                 }
  957 
  958         case SVR4_GMEMLIM:
  959                 {
  960                         struct vmspace *vm = p->p_vmspace;
  961                         register_t r = p->p_rlimit[RLIMIT_DATA].rlim_cur;
  962 
  963                         if (r == -1)
  964                                 r = 0x7fffffff;
  965                         r += (long) vm->vm_daddr;
  966                         if (r > 0x7fffffff)
  967                                 r = 0x7fffffff;
  968                         *retval = r;
  969                         return 0;
  970                 }
  971 
  972         case SVR4_GDESLIM:
  973                 *retval = p->p_rlimit[RLIMIT_NOFILE].rlim_cur;
  974                 if (*retval == -1)
  975                         *retval = 0x7fffffff;
  976                 return 0;
  977 
  978         default:
  979                 return EINVAL;
  980         }
  981 }
  982 
  983 
  984 int
  985 svr4_32_sys_pgrpsys(l, v, retval)
  986         struct lwp *l;
  987         void *v;
  988         register_t *retval;
  989 {
  990         struct svr4_32_sys_pgrpsys_args *uap = v;
  991         struct proc *p = l->l_proc;
  992 
  993         switch (SCARG(uap, cmd)) {
  994         case 1:                 /* setpgrp() */
  995                 /*
  996                  * SVR4 setpgrp() (which takes no arguments) has the
  997                  * semantics that the session ID is also created anew, so
  998                  * in almost every sense, setpgrp() is identical to
  999                  * setsid() for SVR4.  (Under BSD, the difference is that
 1000                  * a setpgid(0,0) will not create a new session.)
 1001                  */
 1002                 sys_setsid(l, NULL, retval);
 1003                 /*FALLTHROUGH*/
 1004 
 1005         case 0:                 /* getpgrp() */
 1006                 *retval = p->p_pgrp->pg_id;
 1007                 return 0;
 1008 
 1009         case 2:                 /* getsid(pid) */
 1010                 if (SCARG(uap, pid) != 0 &&
 1011                     (p = svr4_32_pfind(SCARG(uap, pid))) == NULL)
 1012                         return ESRCH;
 1013                 /*
 1014                  * This has already been initialized to the pid of
 1015                  * the session leader.
 1016                  */
 1017                 *retval = (register_t) p->p_session->s_sid;
 1018                 return 0;
 1019 
 1020         case 3:                 /* setsid() */
 1021                 return sys_setsid(l, NULL, retval);
 1022 
 1023         case 4:                 /* getpgid(pid) */
 1024 
 1025                 if (SCARG(uap, pid) != 0 &&
 1026                     (p = svr4_32_pfind(SCARG(uap, pid))) == NULL)
 1027                         return ESRCH;
 1028 
 1029                 *retval = (int) p->p_pgrp->pg_id;
 1030                 return 0;
 1031 
 1032         case 5:                 /* setpgid(pid, pgid); */
 1033                 {
 1034                         struct sys_setpgid_args sa;
 1035 
 1036                         SCARG(&sa, pid) = SCARG(uap, pid);
 1037                         SCARG(&sa, pgid) = SCARG(uap, pgid);
 1038                         return sys_setpgid(l, &sa, retval);
 1039                 }
 1040 
 1041         default:
 1042                 return EINVAL;
 1043         }
 1044 }
 1045 
 1046 struct svr4_32_hrtcntl_args {
 1047         syscallarg(int)                         cmd;
 1048         syscallarg(int)                         fun;
 1049         syscallarg(int)                         clk;
 1050         syscallarg(svr4_32_hrt_interval_tp)     iv;
 1051         syscallarg(svr4_32_hrt_time_tp)         ti;
 1052 };
 1053 
 1054 
 1055 static int
 1056 svr4_32_hrtcntl(p, uap, retval)
 1057         struct proc *p;
 1058         struct svr4_32_hrtcntl_args *uap;
 1059         register_t *retval;
 1060 {
 1061         switch (SCARG(uap, fun)) {
 1062         case SVR4_HRT_CNTL_RES:
 1063                 DPRINTF(("htrcntl(RES)\n"));
 1064                 *retval = SVR4_HRT_USEC;
 1065                 return 0;
 1066 
 1067         case SVR4_HRT_CNTL_TOFD:
 1068                 DPRINTF(("htrcntl(TOFD)\n"));
 1069                 {
 1070                         struct timeval tv;
 1071                         svr4_hrt_time_t t;
 1072                         if (SCARG(uap, clk) != SVR4_HRT_CLK_STD) {
 1073                                 DPRINTF(("clk == %d\n", SCARG(uap, clk)));
 1074                                 return EINVAL;
 1075                         }
 1076                         if (SCARG(uap, ti) == 0) {
 1077                                 DPRINTF(("ti NULL\n"));
 1078                                 return EINVAL;
 1079                         }
 1080                         microtime(&tv);
 1081                         t.h_sec = tv.tv_sec;
 1082                         t.h_rem = tv.tv_usec;
 1083                         t.h_res = SVR4_HRT_USEC;
 1084                         return copyout(&t, (caddr_t)(u_long)SCARG(uap, ti),
 1085                                        sizeof(t));
 1086                 }
 1087 
 1088         case SVR4_HRT_CNTL_START:
 1089                 DPRINTF(("htrcntl(START)\n"));
 1090                 return ENOSYS;
 1091 
 1092         case SVR4_HRT_CNTL_GET:
 1093                 DPRINTF(("htrcntl(GET)\n"));
 1094                 return ENOSYS;
 1095         default:
 1096                 DPRINTF(("Bad htrcntl command %d\n", SCARG(uap, fun)));
 1097                 return ENOSYS;
 1098         }
 1099 }
 1100 
 1101 
 1102 int
 1103 svr4_32_sys_hrtsys(l, v, retval)
 1104         struct lwp *l;
 1105         void *v;
 1106         register_t *retval;
 1107 {
 1108         struct svr4_32_sys_hrtsys_args *uap = v;
 1109 
 1110         switch (SCARG(uap, cmd)) {
 1111         case SVR4_HRT_CNTL:
 1112                 return svr4_32_hrtcntl(l->l_proc, (struct svr4_32_hrtcntl_args *) uap,
 1113                                     retval);
 1114 
 1115         case SVR4_HRT_ALRM:
 1116                 DPRINTF(("hrtalarm\n"));
 1117                 return ENOSYS;
 1118 
 1119         case SVR4_HRT_SLP:
 1120                 DPRINTF(("hrtsleep\n"));
 1121                 return ENOSYS;
 1122 
 1123         case SVR4_HRT_CAN:
 1124                 DPRINTF(("hrtcancel\n"));
 1125                 return ENOSYS;
 1126 
 1127         default:
 1128                 DPRINTF(("Bad hrtsys command %d\n", SCARG(uap, cmd)));
 1129                 return EINVAL;
 1130         }
 1131 }
 1132 
 1133 
 1134 static int
 1135 svr4_32_setinfo(p, st, si)
 1136         struct proc *p;
 1137         int st;
 1138         svr4_32_siginfo_tp si;
 1139 {
 1140         svr4_32_siginfo_t *s = (svr4_32_siginfo_t *)(u_long)si;
 1141         svr4_32_siginfo_t i;
 1142         int sig;
 1143 
 1144         memset(&i, 0, sizeof(i));
 1145 
 1146         i.si_signo = SVR4_SIGCHLD;
 1147         i.si_errno = 0; /* XXX? */
 1148 
 1149         if (p) {
 1150                 i.si_pid = p->p_pid;
 1151                 if (p->p_stat == SZOMB) {
 1152                         i.si_stime = p->p_ru->ru_stime.tv_sec;
 1153                         i.si_utime = p->p_ru->ru_utime.tv_sec;
 1154                 }
 1155                 else {
 1156                         i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec;
 1157                         i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec;
 1158                 }
 1159         }
 1160 
 1161         if (WIFEXITED(st)) {
 1162                 i.si_status = WEXITSTATUS(st);
 1163                 i.si_code = SVR4_CLD_EXITED;
 1164         } else if (WIFSTOPPED(st)) {
 1165                 sig = WSTOPSIG(st);
 1166                 if (sig >= 0 && sig < NSIG)
 1167                         i.si_status = native_to_svr4_signo[sig];
 1168 
 1169                 if (i.si_status == SVR4_SIGCONT)
 1170                         i.si_code = SVR4_CLD_CONTINUED;
 1171                 else
 1172                         i.si_code = SVR4_CLD_STOPPED;
 1173         } else {
 1174                 sig = WTERMSIG(st);
 1175                 if (sig >= 0 && sig < NSIG)
 1176                         i.si_status = native_to_svr4_signo[sig];
 1177 
 1178                 if (WCOREDUMP(st))
 1179                         i.si_code = SVR4_CLD_DUMPED;
 1180                 else
 1181                         i.si_code = SVR4_CLD_KILLED;
 1182         }
 1183 
 1184         DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n",
 1185                  i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status));
 1186 
 1187         return copyout(&i, s, sizeof(i));
 1188 }
 1189 
 1190 
 1191 int
 1192 svr4_32_sys_waitsys(l, v, retval)
 1193         struct lwp *l;
 1194         void *v;
 1195         register_t *retval;
 1196 {
 1197         struct svr4_32_sys_waitsys_args *uap = v;
 1198         struct proc *parent = l->l_proc;
 1199         int options, error;
 1200         struct proc *child;
 1201 
 1202         switch (SCARG(uap, grp)) {
 1203         case SVR4_P_PID:
 1204                 break;
 1205 
 1206         case SVR4_P_PGID:
 1207                 SCARG(uap, id) = -parent->p_pgid;
 1208                 break;
 1209 
 1210         case SVR4_P_ALL:
 1211                 SCARG(uap, id) = WAIT_ANY;
 1212                 break;
 1213 
 1214         default:
 1215                 return EINVAL;
 1216         }
 1217 
 1218         DPRINTF(("waitsys(%d, %d, %p, %x)\n",
 1219                  SCARG(uap, grp), SCARG(uap, id),
 1220                  SCARG(uap, info), SCARG(uap, options)));
 1221 
 1222         /* Translate options */
 1223         options = 0;
 1224         if (SCARG(uap, options) & SVR4_WNOWAIT)
 1225                 options |= WNOWAIT;
 1226         if (SCARG(uap, options) & SVR4_WNOHANG)
 1227                 options |= WNOHANG;
 1228         if ((SCARG(uap, options) & (SVR4_WEXITED|SVR4_WTRAPPED)) == 0)
 1229                 options |= WNOZOMBIE;
 1230         if (SCARG(uap, options) & (SVR4_WSTOPPED|SVR4_WCONTINUED))
 1231                 options |= WUNTRACED;
 1232 
 1233         error = find_stopped_child(parent, SCARG(uap, id), options, &child);
 1234         if (error != 0)
 1235                 return error;
 1236         *retval = 0;
 1237         if (child == NULL)
 1238                 return svr4_32_setinfo(NULL, 0, SCARG(uap, info));
 1239 
 1240         if (child->p_stat == SZOMB) {
 1241                 DPRINTF(("found %d\n", child->p_pid));
 1242                 error = svr4_32_setinfo(child, child->p_xstat, SCARG(uap,info));
 1243                 if (error)
 1244                         return error;
 1245 
 1246                 if ((SCARG(uap, options) & SVR4_WNOWAIT)) {
 1247                         DPRINTF(("Don't wait\n"));
 1248                         return 0;
 1249                 }
 1250 
 1251                 proc_free(child);
 1252                 return 0;
 1253         }
 1254 
 1255         DPRINTF(("jobcontrol %d\n", child->p_pid));
 1256         return svr4_32_setinfo(child, W_STOPCODE(child->p_xstat),
 1257                                                SCARG(uap, info));
 1258 }
 1259 
 1260 static int
 1261 svr4_copystatvfs64(struct svr4_32_statvfs64 *sufs, const struct statvfs *bufs)
 1262 {
 1263         struct svr4_32_statvfs64 *skfs = 
 1264             malloc(sizeof(*skfs), M_TEMP, M_WAITOK);
 1265         struct statvfs *bkfs = malloc(sizeof(*bkfs), M_TEMP, M_WAITOK);
 1266         int error;
 1267 
 1268         if ((error = copyin(sufs, bkfs, sizeof(*bkfs))) != 0)
 1269                 goto out;
 1270 
 1271         bsd_statvfs_to_svr4_32_statvfs64(bkfs, skfs);
 1272 
 1273         error = copyout(skfs, sufs, sizeof(*skfs));
 1274 out:
 1275         free(skfs, M_TEMP);
 1276         free(bkfs, M_TEMP);
 1277         return error;
 1278 }
 1279 
 1280 static int
 1281 svr4_copystatvfs(struct svr4_32_statvfs *sufs, const struct statvfs *bufs)
 1282 {
 1283         struct svr4_32_statvfs *skfs = malloc(sizeof(*skfs), M_TEMP, M_WAITOK);
 1284         struct statvfs *bkfs = malloc(sizeof(*bkfs), M_TEMP, M_WAITOK);
 1285         int error;
 1286 
 1287         if ((error = copyin(bufs, bkfs, sizeof(*bkfs))) != 0)
 1288                 goto out;
 1289 
 1290         bsd_statvfs_to_svr4_32_statvfs(bkfs, skfs);
 1291 
 1292         error = copyout(skfs, sufs, sizeof(*skfs));
 1293 out:
 1294         free(skfs, M_TEMP);
 1295         free(bkfs, M_TEMP);
 1296         return error;
 1297 }
 1298 
 1299 static void
 1300 bsd_statvfs_to_svr4_32_statvfs(bfs, sfs)
 1301         const struct statvfs *bfs;
 1302         struct svr4_32_statvfs *sfs;
 1303 {
 1304         sfs->f_bsize = bfs->f_iosize; /* XXX */
 1305         sfs->f_frsize = bfs->f_bsize;
 1306         sfs->f_blocks = bfs->f_blocks;
 1307         sfs->f_bfree = bfs->f_bfree;
 1308         sfs->f_bavail = bfs->f_bavail;
 1309         sfs->f_files = bfs->f_files;
 1310         sfs->f_ffree = bfs->f_ffree;
 1311         sfs->f_favail = bfs->f_ffree;
 1312         sfs->f_fsid = bfs->f_fsidx.__fsid_val[0];
 1313         memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
 1314         sfs->f_flag = 0;
 1315         if (bfs->f_flag & MNT_RDONLY)
 1316                 sfs->f_flag |= SVR4_ST_RDONLY;
 1317         if (bfs->f_flag & MNT_NOSUID)
 1318                 sfs->f_flag |= SVR4_ST_NOSUID;
 1319         sfs->f_namemax = MAXNAMLEN;
 1320         memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
 1321         memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
 1322 }
 1323 
 1324 
 1325 static void
 1326 bsd_statvfs_to_svr4_32_statvfs64(bfs, sfs)
 1327         const struct statvfs *bfs;
 1328         struct svr4_32_statvfs64 *sfs;
 1329 {
 1330         sfs->f_bsize = bfs->f_iosize; /* XXX */
 1331         sfs->f_frsize = bfs->f_bsize;
 1332         sfs->f_blocks = bfs->f_blocks;
 1333         sfs->f_bfree = bfs->f_bfree;
 1334         sfs->f_bavail = bfs->f_bavail;
 1335         sfs->f_files = bfs->f_files;
 1336         sfs->f_ffree = bfs->f_ffree;
 1337         sfs->f_favail = bfs->f_ffree;
 1338         sfs->f_fsid = bfs->f_fsidx.__fsid_val[0];
 1339         memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype));
 1340         sfs->f_flag = 0;
 1341         if (bfs->f_flag & MNT_RDONLY)
 1342                 sfs->f_flag |= SVR4_ST_RDONLY;
 1343         if (bfs->f_flag & MNT_NOSUID)
 1344                 sfs->f_flag |= SVR4_ST_NOSUID;
 1345         sfs->f_namemax = MAXNAMLEN;
 1346         memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */
 1347         memset(sfs->f_filler, 0, sizeof(sfs->f_filler));
 1348 }
 1349 
 1350 
 1351 int
 1352 svr4_32_sys_statvfs(l, v, retval)
 1353         struct lwp *l;
 1354         void *v;
 1355         register_t *retval;
 1356 {
 1357         struct svr4_32_sys_statvfs_args *uap = v;
 1358         struct proc *p = l->l_proc;
 1359         struct sys_statvfs1_args        fs_args;
 1360         caddr_t sg = stackgap_init(p, 0);
 1361         struct statvfs *fs = stackgap_alloc(p, &sg, sizeof(struct statvfs));
 1362         int error;
 1363 
 1364         SCARG(&fs_args, path) = (caddr_t)(u_long)SCARG(uap, path);
 1365         CHECK_ALT_EXIST(l, &sg, SCARG(&fs_args, path));
 1366         SCARG(&fs_args, buf) = fs;
 1367         SCARG(&fs_args, flags) = ST_WAIT;
 1368 
 1369         if ((error = sys_statvfs1(l, &fs_args, retval)) != 0)
 1370                 return error;
 1371 
 1372         return svr4_copystatvfs((struct svr4_32_statvfs *)
 1373                 ((intptr_t)SCARG(uap, fs)), fs);
 1374 }
 1375 
 1376 
 1377 int
 1378 svr4_32_sys_fstatvfs(l, v, retval)
 1379         struct lwp *l;
 1380         void *v;
 1381         register_t *retval;
 1382 {
 1383         struct svr4_32_sys_fstatvfs_args *uap = v;
 1384         struct proc *p = l->l_proc;
 1385         struct sys_fstatvfs1_args       fs_args;
 1386         caddr_t sg = stackgap_init(p, 0);
 1387         struct statvfs *fs = stackgap_alloc(p, &sg, sizeof(struct statvfs));
 1388         int error;
 1389 
 1390         SCARG(&fs_args, fd) = SCARG(uap, fd);
 1391         SCARG(&fs_args, buf) = fs;
 1392         SCARG(&fs_args, flags) = ST_WAIT;
 1393 
 1394         if ((error = sys_fstatvfs1(l, &fs_args, retval)) != 0)
 1395                 return error;
 1396 
 1397         return svr4_copystatvfs((struct svr4_32_statvfs *)
 1398                 ((intptr_t)SCARG(uap, fs)), fs);
 1399 }
 1400 
 1401 
 1402 int
 1403 svr4_32_sys_statvfs64(l, v, retval)
 1404         struct lwp *l;
 1405         void *v;
 1406         register_t *retval;
 1407 {
 1408         struct svr4_32_sys_statvfs64_args *uap = v;
 1409         struct sys_statvfs1_args        fs_args;
 1410         struct proc *p = l->l_proc;
 1411         caddr_t sg = stackgap_init(p, 0);
 1412         struct statvfs *fs = stackgap_alloc(p, &sg, sizeof(struct statvfs));
 1413         int error;
 1414 
 1415         SCARG(&fs_args, path) = (caddr_t)(u_long)SCARG(uap, path);
 1416         CHECK_ALT_EXIST(l, &sg, SCARG(&fs_args, path));
 1417         SCARG(&fs_args, buf) = fs;
 1418         SCARG(&fs_args, flags) = ST_WAIT;
 1419 
 1420         if ((error = sys_statvfs1(l, &fs_args, retval)) != 0)
 1421                 return error;
 1422 
 1423         return svr4_copystatvfs64((struct svr4_32_statvfs64 *)
 1424                 ((intptr_t)SCARG(uap, fs)), fs);
 1425 }
 1426 
 1427 
 1428 int
 1429 svr4_32_sys_fstatvfs64(l, v, retval)
 1430         struct lwp *l;
 1431         void *v;
 1432         register_t *retval;
 1433 {
 1434         struct svr4_32_sys_fstatvfs64_args *uap = v;
 1435         struct proc *p = l->l_proc;
 1436         struct sys_fstatvfs1_args       fs_args;
 1437         caddr_t sg = stackgap_init(p, 0);
 1438         struct statvfs *fs = stackgap_alloc(p, &sg, sizeof(struct statvfs));
 1439         int error;
 1440 
 1441         SCARG(&fs_args, fd) = SCARG(uap, fd);
 1442         SCARG(&fs_args, buf) = fs;
 1443         SCARG(&fs_args, flags) = ST_WAIT;
 1444 
 1445         if ((error = sys_fstatvfs1(l, &fs_args, retval)) != 0)
 1446                 return error;
 1447 
 1448         return svr4_copystatvfs64((struct svr4_32_statvfs64 *)
 1449                 ((intptr_t)SCARG(uap, fs)), fs);
 1450 }
 1451 
 1452 
 1453 int
 1454 svr4_32_sys_alarm(l, v, retval)
 1455         struct lwp *l;
 1456         void *v;
 1457         register_t *retval;
 1458 {
 1459         struct svr4_32_sys_alarm_args *uap = v;
 1460         struct proc *p = l->l_proc;
 1461         int error;
 1462         struct itimerval *ntp, *otp, tp;
 1463         struct sys_setitimer_args sa;
 1464         caddr_t sg = stackgap_init(p, 0);
 1465 
 1466         ntp = stackgap_alloc(p, &sg, sizeof(struct itimerval));
 1467         otp = stackgap_alloc(p, &sg, sizeof(struct itimerval));
 1468 
 1469         timerclear(&tp.it_interval);
 1470         tp.it_value.tv_sec = SCARG(uap, sec);
 1471         tp.it_value.tv_usec = 0;
 1472 
 1473         if ((error = copyout(&tp, ntp, sizeof(tp))) != 0)
 1474                 return error;
 1475 
 1476         SCARG(&sa, which) = ITIMER_REAL;
 1477         SCARG(&sa, itv) = ntp;
 1478         SCARG(&sa, oitv) = otp;
 1479 
 1480         if ((error = sys_setitimer(l, &sa, retval)) != 0)
 1481                 return error;
 1482 
 1483         if ((error = copyin(otp, &tp, sizeof(tp))) != 0)
 1484                 return error;
 1485 
 1486         if (tp.it_value.tv_usec)
 1487                 tp.it_value.tv_sec++;
 1488 
 1489         *retval = (register_t) tp.it_value.tv_sec;
 1490 
 1491         return 0;
 1492 }
 1493 
 1494 
 1495 int
 1496 svr4_32_sys_gettimeofday(l, v, retval)
 1497         struct lwp *l;
 1498         void *v;
 1499         register_t *retval;
 1500 {
 1501         struct svr4_32_sys_gettimeofday_args *uap = v;
 1502 
 1503         if (SCARG(uap, tp)) {
 1504                 struct timeval atv;
 1505 
 1506                 microtime(&atv);
 1507                 return copyout(&atv, (caddr_t)(u_long)SCARG(uap, tp), sizeof (atv));
 1508         }
 1509 
 1510         return 0;
 1511 }
 1512 
 1513 
 1514 int
 1515 svr4_32_sys_facl(l, v, retval)
 1516         struct lwp *l;
 1517         void *v;
 1518         register_t *retval;
 1519 {
 1520         struct svr4_32_sys_facl_args *uap = v;
 1521 
 1522         *retval = 0;
 1523 
 1524         switch (SCARG(uap, cmd)) {
 1525         case SVR4_SYS_SETACL:
 1526                 /* We don't support acls on any filesystem */
 1527                 return ENOSYS;
 1528 
 1529         case SVR4_SYS_GETACL:
 1530                 return copyout(retval, &SCARG(uap, num),
 1531                     sizeof(SCARG(uap, num)));
 1532 
 1533         case SVR4_SYS_GETACLCNT:
 1534                 return 0;
 1535 
 1536         default:
 1537                 return EINVAL;
 1538         }
 1539 }
 1540 
 1541 
 1542 int
 1543 svr4_32_sys_acl(l, v, retval)
 1544         struct lwp *l;
 1545         void *v;
 1546         register_t *retval;
 1547 {
 1548         return svr4_32_sys_facl(l, v, retval);  /* XXX: for now the same */
 1549 }
 1550 
 1551 
 1552 int
 1553 svr4_32_sys_auditsys(l, v, retval)
 1554         struct lwp *l;
 1555         void *v;
 1556         register_t *retval;
 1557 {
 1558         /*
 1559          * XXX: Big brother is *not* watching.
 1560          */
 1561         return 0;
 1562 }
 1563 
 1564 
 1565 int
 1566 svr4_32_sys_memcntl(l, v, retval)
 1567         struct lwp *l;
 1568         void *v;
 1569         register_t *retval;
 1570 {
 1571         struct svr4_32_sys_memcntl_args *uap = v;
 1572         switch (SCARG(uap, cmd)) {
 1573         case SVR4_MC_SYNC:
 1574                 {
 1575                         struct sys___msync13_args msa;
 1576 
 1577                         SCARG(&msa, addr) = (void *)(u_long)SCARG(uap, addr);
 1578                         SCARG(&msa, len) = SCARG(uap, len);
 1579                         SCARG(&msa, flags) = (int)(u_long)SCARG(uap, arg);
 1580 
 1581                         return sys___msync13(l, &msa, retval);
 1582                 }
 1583         case SVR4_MC_ADVISE:
 1584                 {
 1585                         struct sys_madvise_args maa;
 1586 
 1587                         SCARG(&maa, addr) = (void *)(u_long)SCARG(uap, addr);
 1588                         SCARG(&maa, len) = SCARG(uap, len);
 1589                         SCARG(&maa, behav) = (int)(u_long)SCARG(uap, arg);
 1590 
 1591                         return sys_madvise(l, &maa, retval);
 1592                 }
 1593         case SVR4_MC_LOCK:
 1594         case SVR4_MC_UNLOCK:
 1595         case SVR4_MC_LOCKAS:
 1596         case SVR4_MC_UNLOCKAS:
 1597                 return EOPNOTSUPP;
 1598         default:
 1599                 return ENOSYS;
 1600         }
 1601 }
 1602 
 1603 
 1604 int
 1605 svr4_32_sys_nice(l, v, retval)
 1606         struct lwp *l;
 1607         void *v;
 1608         register_t *retval;
 1609 {
 1610         struct svr4_32_sys_nice_args *uap = v;
 1611         struct sys_setpriority_args ap;
 1612         int error;
 1613 
 1614         SCARG(&ap, which) = PRIO_PROCESS;
 1615         SCARG(&ap, who) = 0;
 1616         SCARG(&ap, prio) = SCARG(uap, prio);
 1617 
 1618         if ((error = sys_setpriority(l, &ap, retval)) != 0)
 1619                 return error;
 1620 
 1621         if ((error = sys_getpriority(l, &ap, retval)) != 0)
 1622                 return error;
 1623 
 1624         return 0;
 1625 }
 1626 
 1627 
 1628 int
 1629 svr4_32_sys_resolvepath(l, v, retval)
 1630         struct lwp *l;
 1631         void *v;
 1632         register_t *retval;
 1633 {
 1634         struct svr4_32_sys_resolvepath_args *uap = v;
 1635         struct nameidata nd;
 1636         int error;
 1637         size_t len;
 1638 
 1639         NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE,
 1640             (const char *)(u_long)SCARG(uap, path), l);
 1641 
 1642         if ((error = namei(&nd)) != 0)
 1643                 return error;
 1644 
 1645         if ((error = copyoutstr(nd.ni_cnd.cn_pnbuf,
 1646             (caddr_t)(u_long)SCARG(uap, buf),
 1647             SCARG(uap, bufsiz), &len)) != 0)
 1648                 goto bad;
 1649 
 1650         *retval = len;
 1651 bad:
 1652         vrele(nd.ni_vp);
 1653         PNBUF_PUT(nd.ni_cnd.cn_pnbuf);
 1654         return error;
 1655 }

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