8470374cba
Conditions such as defined(LINUX) are always true now, defined(FREEBSD) etc are always false. When if directive has them as subexpressions, it can be simplified. Another trivial changes here are fixes for directive indentation. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
456 lines
9.7 KiB
C
456 lines
9.7 KiB
C
/*
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#include "defs.h"
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#include <sys/syscall.h>
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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#ifdef HAVE_SYS_POLL_H
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#include <sys/poll.h>
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#endif
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#ifdef HAVE_STROPTS_H
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#include <stropts.h>
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#endif
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#ifdef HAVE_SYS_CONF_H
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#include <sys/conf.h>
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#endif
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#ifdef HAVE_SYS_STREAM_H
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#include <sys/stream.h>
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#endif
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#ifdef HAVE_SYS_TIHDR_H
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#include <sys/tihdr.h>
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#endif
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#ifndef HAVE_STROPTS_H
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#define RS_HIPRI 1
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struct strbuf {
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int maxlen; /* no. of bytes in buffer */
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int len; /* no. of bytes returned */
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const char *buf; /* pointer to data */
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};
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#define MORECTL 1
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#define MOREDATA 2
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#endif /* !HAVE_STROPTS_H */
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#ifdef HAVE_SYS_TIUSER_H
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#include <sys/tiuser.h>
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#include <sys/sockmod.h>
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#include <sys/timod.h>
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#endif /* HAVE_SYS_TIUSER_H */
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static const struct xlat msgflags[] = {
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{ RS_HIPRI, "RS_HIPRI" },
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{ 0, NULL },
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};
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static void
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printstrbuf(struct tcb *tcp, struct strbuf *sbp, int getting)
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{
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if (sbp->maxlen == -1 && getting)
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tprints("{maxlen=-1}");
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else {
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tprints("{");
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if (getting)
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tprintf("maxlen=%d, ", sbp->maxlen);
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tprintf("len=%d, buf=", sbp->len);
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printstr(tcp, (unsigned long) sbp->buf, sbp->len);
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tprints("}");
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}
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}
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static void
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printstrbufarg(struct tcb *tcp, int arg, int getting)
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{
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struct strbuf buf;
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if (arg == 0)
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tprints("NULL");
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else if (umove(tcp, arg, &buf) < 0)
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tprints("{...}");
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else
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printstrbuf(tcp, &buf, getting);
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tprints(", ");
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}
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int
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sys_putmsg(struct tcb *tcp)
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{
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int i;
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if (entering(tcp)) {
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/* fd */
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tprintf("%ld, ", tcp->u_arg[0]);
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/* control and data */
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for (i = 1; i < 3; i++)
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printstrbufarg(tcp, tcp->u_arg[i], 0);
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/* flags */
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printflags(msgflags, tcp->u_arg[3], "RS_???");
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}
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return 0;
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}
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#if defined(SPARC) || defined(SPARC64)
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int
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sys_getmsg(struct tcb *tcp)
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{
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int i, flags;
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if (entering(tcp)) {
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/* fd */
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tprintf("%lu, ", tcp->u_arg[0]);
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} else {
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if (syserror(tcp)) {
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tprintf("%#lx, %#lx, %#lx",
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tcp->u_arg[1], tcp->u_arg[2], tcp->u_arg[3]);
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return 0;
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}
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/* control and data */
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for (i = 1; i < 3; i++)
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printstrbufarg(tcp, tcp->u_arg[i], 1);
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/* pointer to flags */
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if (tcp->u_arg[3] == 0)
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tprints("NULL");
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else if (umove(tcp, tcp->u_arg[3], &flags) < 0)
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tprints("[?]");
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else {
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tprints("[");
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printflags(msgflags, flags, "RS_???");
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tprints("]");
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}
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/* decode return value */
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switch (tcp->u_rval) {
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case MORECTL:
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tcp->auxstr = "MORECTL";
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break;
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case MORECTL|MOREDATA:
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tcp->auxstr = "MORECTL|MOREDATA";
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break;
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case MOREDATA:
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tcp->auxstr = "MORECTL";
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break;
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default:
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tcp->auxstr = NULL;
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break;
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}
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}
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return RVAL_HEX | RVAL_STR;
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}
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#endif
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#if defined SYS_putpmsg || defined SYS_getpmsg
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static const struct xlat pmsgflags[] = {
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#ifdef MSG_HIPRI
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{ MSG_HIPRI, "MSG_HIPRI" },
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#endif
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#ifdef MSG_AND
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{ MSG_ANY, "MSG_ANY" },
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#endif
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#ifdef MSG_BAND
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{ MSG_BAND, "MSG_BAND" },
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#endif
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{ 0, NULL },
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};
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#endif
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#ifdef SYS_putpmsg
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int
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sys_putpmsg(struct tcb *tcp)
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{
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int i;
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if (entering(tcp)) {
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/* fd */
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tprintf("%ld, ", tcp->u_arg[0]);
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/* control and data */
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for (i = 1; i < 3; i++)
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printstrbufarg(tcp, tcp->u_arg[i], 0);
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/* band */
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tprintf("%ld, ", tcp->u_arg[3]);
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/* flags */
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printflags(pmsgflags, tcp->u_arg[4], "MSG_???");
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}
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return 0;
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}
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#endif /* SYS_putpmsg */
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#ifdef SYS_getpmsg
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int
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sys_getpmsg(struct tcb *tcp)
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{
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int i, flags;
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if (entering(tcp)) {
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/* fd */
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tprintf("%lu, ", tcp->u_arg[0]);
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} else {
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if (syserror(tcp)) {
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tprintf("%#lx, %#lx, %#lx, %#lx", tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3], tcp->u_arg[4]);
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return 0;
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}
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/* control and data */
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for (i = 1; i < 3; i++)
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printstrbufarg(tcp, tcp->u_arg[i], 1);
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/* pointer to band */
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printnum(tcp, tcp->u_arg[3], "%d");
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tprints(", ");
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/* pointer to flags */
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if (tcp->u_arg[4] == 0)
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tprints("NULL");
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else if (umove(tcp, tcp->u_arg[4], &flags) < 0)
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tprints("[?]");
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else {
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tprints("[");
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printflags(pmsgflags, flags, "MSG_???");
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tprints("]");
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}
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/* decode return value */
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switch (tcp->u_rval) {
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case MORECTL:
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tcp->auxstr = "MORECTL";
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break;
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case MORECTL|MOREDATA:
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tcp->auxstr = "MORECTL|MOREDATA";
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break;
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case MOREDATA:
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tcp->auxstr = "MORECTL";
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break;
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default:
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tcp->auxstr = NULL;
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break;
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}
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}
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return RVAL_HEX | RVAL_STR;
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}
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#endif /* SYS_getpmsg */
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#ifdef HAVE_SYS_POLL_H
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static const struct xlat pollflags[] = {
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#ifdef POLLIN
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{ POLLIN, "POLLIN" },
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{ POLLPRI, "POLLPRI" },
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{ POLLOUT, "POLLOUT" },
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#ifdef POLLRDNORM
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{ POLLRDNORM, "POLLRDNORM" },
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#endif
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#ifdef POLLWRNORM
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{ POLLWRNORM, "POLLWRNORM" },
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#endif
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#ifdef POLLRDBAND
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{ POLLRDBAND, "POLLRDBAND" },
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#endif
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#ifdef POLLWRBAND
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{ POLLWRBAND, "POLLWRBAND" },
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#endif
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{ POLLERR, "POLLERR" },
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{ POLLHUP, "POLLHUP" },
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{ POLLNVAL, "POLLNVAL" },
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#endif
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{ 0, NULL },
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};
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static int
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decode_poll(struct tcb *tcp, long pts)
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{
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struct pollfd fds;
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unsigned nfds;
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unsigned long size, start, cur, end, abbrev_end;
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int failed = 0;
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if (entering(tcp)) {
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nfds = tcp->u_arg[1];
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size = sizeof(fds) * nfds;
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start = tcp->u_arg[0];
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end = start + size;
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if (nfds == 0 || size / sizeof(fds) != nfds || end < start) {
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tprintf("%#lx, %d, ",
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tcp->u_arg[0], nfds);
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return 0;
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}
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if (abbrev(tcp)) {
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abbrev_end = start + max_strlen * sizeof(fds);
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if (abbrev_end < start)
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abbrev_end = end;
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} else {
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abbrev_end = end;
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}
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tprints("[");
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for (cur = start; cur < end; cur += sizeof(fds)) {
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if (cur > start)
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tprints(", ");
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if (cur >= abbrev_end) {
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tprints("...");
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break;
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}
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if (umoven(tcp, cur, sizeof fds, (char *) &fds) < 0) {
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tprints("?");
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failed = 1;
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break;
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}
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if (fds.fd < 0) {
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tprintf("{fd=%d}", fds.fd);
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continue;
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}
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tprints("{fd=");
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printfd(tcp, fds.fd);
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tprints(", events=");
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printflags(pollflags, fds.events, "POLL???");
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tprints("}");
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}
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tprints("]");
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if (failed)
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tprintf(" %#lx", start);
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tprintf(", %d, ", nfds);
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return 0;
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} else {
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static char outstr[1024];
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char *outptr;
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#define end_outstr (outstr + sizeof(outstr))
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const char *flagstr;
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if (syserror(tcp))
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return 0;
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if (tcp->u_rval == 0) {
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tcp->auxstr = "Timeout";
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return RVAL_STR;
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}
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nfds = tcp->u_arg[1];
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size = sizeof(fds) * nfds;
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start = tcp->u_arg[0];
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end = start + size;
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if (nfds == 0 || size / sizeof(fds) != nfds || end < start)
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return 0;
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if (abbrev(tcp)) {
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abbrev_end = start + max_strlen * sizeof(fds);
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if (abbrev_end < start)
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abbrev_end = end;
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} else {
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abbrev_end = end;
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}
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outptr = outstr;
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for (cur = start; cur < end; cur += sizeof(fds)) {
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if (umoven(tcp, cur, sizeof fds, (char *) &fds) < 0) {
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if (outptr < end_outstr - 2)
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*outptr++ = '?';
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failed = 1;
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break;
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}
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if (!fds.revents)
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continue;
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if (outptr == outstr) {
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*outptr++ = '[';
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} else {
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if (outptr < end_outstr - 3)
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outptr = stpcpy(outptr, ", ");
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}
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if (cur >= abbrev_end) {
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if (outptr < end_outstr - 4)
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outptr = stpcpy(outptr, "...");
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break;
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}
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if (outptr < end_outstr - (sizeof("{fd=%d, revents=") + sizeof(int)*3) + 1)
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outptr += sprintf(outptr, "{fd=%d, revents=", fds.fd);
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flagstr = sprintflags("", pollflags, fds.revents);
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if (outptr < end_outstr - (strlen(flagstr) + 2)) {
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outptr = stpcpy(outptr, flagstr);
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*outptr++ = '}';
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}
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}
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if (failed)
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return 0;
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if (outptr != outstr /* && outptr < end_outstr - 1 (always true)*/)
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*outptr++ = ']';
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*outptr = '\0';
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if (pts) {
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if (outptr < end_outstr - (10 + TIMESPEC_TEXT_BUFSIZE)) {
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outptr = stpcpy(outptr, outptr == outstr ? "left " : ", left ");
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sprint_timespec(outptr, tcp, pts);
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}
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}
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if (outptr == outstr)
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return 0;
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tcp->auxstr = outstr;
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return RVAL_STR;
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#undef end_outstr
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}
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}
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int
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sys_poll(struct tcb *tcp)
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{
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int rc = decode_poll(tcp, 0);
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if (entering(tcp)) {
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#ifdef INFTIM
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if (tcp->u_arg[2] == INFTIM)
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tprints("INFTIM");
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else
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#endif
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tprintf("%ld", tcp->u_arg[2]);
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}
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return rc;
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}
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int
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sys_ppoll(struct tcb *tcp)
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{
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int rc = decode_poll(tcp, tcp->u_arg[2]);
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if (entering(tcp)) {
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print_timespec(tcp, tcp->u_arg[2]);
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tprints(", ");
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print_sigset(tcp, tcp->u_arg[3], 0);
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tprintf(", %lu", tcp->u_arg[4]);
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}
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return rc;
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}
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#else /* !HAVE_SYS_POLL_H */
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int
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sys_poll(struct tcb *tcp)
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{
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return 0;
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}
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#endif
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