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netbsd32_select.c revision 1.14 
      1 /*	$NetBSD: netbsd32_select.c,v 1.14 2007/12/20 23:03:02 dsl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2001 Matthew R. Green
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_select.c,v 1.14 2007/12/20 23:03:02 dsl Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/malloc.h>
     37 #include <sys/mount.h>
     38 #include <sys/time.h>
     39 #include <sys/vnode.h>
     40 #include <sys/file.h>
     41 #include <sys/filedesc.h>
     42 #include <sys/poll.h>
     43 #include <sys/select.h>
     44 #include <sys/dirent.h>
     45 
     46 #include <sys/proc.h>
     47 
     48 #include <net/if.h>
     49 
     50 #include <compat/netbsd32/netbsd32.h>
     51 #include <compat/netbsd32/netbsd32_syscall.h>
     52 #include <compat/netbsd32/netbsd32_syscallargs.h>
     53 #include <compat/netbsd32/netbsd32_conv.h>
     54 
     55 int
     56 netbsd32_select(struct lwp *l, const struct netbsd32_select_args *uap, register_t *retval)
     57 {
     58 	/* {
     59 		syscallarg(int) nd;
     60 		syscallarg(netbsd32_fd_setp_t) in;
     61 		syscallarg(netbsd32_fd_setp_t) ou;
     62 		syscallarg(netbsd32_fd_setp_t) ex;
     63 		syscallarg(netbsd32_timevalp_t) tv;
     64 	} */
     65 	int error;
     66 	struct netbsd32_timeval tv32;
     67 	struct timeval atv, *tv = NULL;
     68 
     69 	if (SCARG_P32(uap, tv)) {
     70 		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
     71 		if (error != 0)
     72 			return error;
     73 		netbsd32_to_timeval(&tv32, &atv);
     74 		tv = &atv;
     75 	}
     76 
     77 	return selcommon(l, retval, SCARG(uap, nd), SCARG_P32(uap, in),
     78 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), tv, NULL);
     79 }
     80 
     81 int
     82 netbsd32_pselect(struct lwp *l, const struct netbsd32_pselect_args *uap, register_t *retval)
     83 {
     84 	/* {
     85 		syscallarg(int) nd;
     86 		syscallarg(netbsd32_fd_setp_t) in;
     87 		syscallarg(netbsd32_fd_setp_t) ou;
     88 		syscallarg(netbsd32_fd_setp_t) ex;
     89 		syscallarg(const netbsd32_timespecp_t) ts;
     90 		syscallarg(const netbsd32_sigsetp_t) mask;
     91 	} */
     92 	int error;
     93 	struct netbsd32_timespec ts32;
     94 	struct timespec ts;
     95 	struct timeval atv, *tv = NULL;
     96 	sigset_t amask, *mask = NULL;
     97 
     98 	if (SCARG_P32(uap, ts)) {
     99 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    100 		if (error != 0)
    101 			return error;
    102 		netbsd32_to_timespec(&ts32, &ts);
    103 		atv.tv_sec = ts.tv_sec;
    104 		atv.tv_usec = ts.tv_nsec / 1000;
    105 		tv = &atv;
    106 	}
    107 	if (SCARG_P32(uap, mask)) {
    108 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    109 		if (error != 0)
    110 			return error;
    111 		mask = &amask;
    112 	}
    113 
    114 	return selcommon(l, retval, SCARG(uap, nd), SCARG_P32(uap, in),
    115 	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), tv, mask);
    116 }
    117 
    118 int
    119 netbsd32_pollts(struct lwp *l, const struct netbsd32_pollts_args *uap, register_t *retval)
    120 {
    121 	/* {
    122 		syscallarg(struct netbsd32_pollfdp_t) fds;
    123 		syscallarg(u_int) nfds;
    124 		syscallarg(const netbsd32_timespecp_t) ts;
    125 		syscallarg(const netbsd32_sigsetp_t) mask;
    126 	} */
    127 	int error;
    128 	struct netbsd32_timespec ts32;
    129 	struct timespec ts;
    130 	struct timeval atv, *tv = NULL;
    131 	sigset_t amask, *mask = NULL;
    132 
    133 	if (SCARG_P32(uap, ts)) {
    134 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
    135 		if (error != 0)
    136 			return error;
    137 		netbsd32_to_timespec(&ts32, &ts);
    138 		atv.tv_sec = ts.tv_sec;
    139 		atv.tv_usec = ts.tv_nsec / 1000;
    140 		tv = &atv;
    141 	}
    142 	if (NETBSD32PTR64( SCARG(uap, mask))) {
    143 		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
    144 		if (error != 0)
    145 			return error;
    146 		mask = &amask;
    147 	}
    148 
    149 	return pollcommon(l, retval, SCARG_P32(uap, fds),
    150 	    SCARG(uap, nfds), tv, mask);
    151 }
    152