Dmitry V. Levin
811bda6225
* poll.c: New file. * Makefile.am (strace_SOURCES): Add it. * stream.c (decode_poll, sys_poll, sys_ppoll): Move to poll.c.
149 lines
4.0 KiB
C
149 lines
4.0 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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#include "defs.h"
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/* Who has STREAMS syscalls?
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* Linux hasn't. Solaris has (had?).
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* Just in case I miss something, retain in for Sparc...
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*/
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#if (defined SPARC || defined SPARC64) \
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&& (defined SYS_putpmsg || defined SYS_getpmsg)
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# ifdef HAVE_STROPTS_H
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# include <stropts.h>
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# else
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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
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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, long 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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# include "xlat/pmsgflags.h"
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# ifdef SYS_putpmsg
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SYS_FUNC(putpmsg)
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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
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# ifdef SYS_getpmsg
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SYS_FUNC(getpmsg)
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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_int(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
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#endif /* STREAMS syscalls support */
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