63d6e54c8b
* configure.ac: Check for sys/epoll.h. * desc.c: Protect #include <sys/epoll.h> with [HAVE_SYS_EPOLL_H]. (epollctls, epollevents): Protect each entry with #ifdef on its macro.
699 lines
14 KiB
C
699 lines
14 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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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 <fcntl.h>
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#include <sys/file.h>
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#ifdef LINUX
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#include <inttypes.h>
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#endif
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#ifdef HAVE_SYS_EPOLL_H
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#include <sys/epoll.h>
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#endif
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#if HAVE_LONG_LONG_OFF_T
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/*
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* Hacks for systems that have a long long off_t
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*/
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#define flock64 flock /* Horrid hack */
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#define printflock printflock64 /* Horrider hack */
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#endif
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static const struct xlat fcntlcmds[] = {
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{ F_DUPFD, "F_DUPFD" },
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{ F_GETFD, "F_GETFD" },
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{ F_SETFD, "F_SETFD" },
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{ F_GETFL, "F_GETFL" },
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{ F_SETFL, "F_SETFL" },
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{ F_GETLK, "F_GETLK" },
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{ F_SETLK, "F_SETLK" },
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{ F_SETLKW, "F_SETLKW" },
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{ F_GETOWN, "F_GETOWN" },
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{ F_SETOWN, "F_SETOWN" },
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#ifdef F_RSETLK
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{ F_RSETLK, "F_RSETLK" },
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#endif
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#ifdef F_RSETLKW
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{ F_RSETLKW, "F_RSETLKW" },
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#endif
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#ifdef F_RGETLK
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{ F_RGETLK, "F_RGETLK" },
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#endif
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#ifdef F_CNVT
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{ F_CNVT, "F_CNVT" },
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#endif
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#ifdef F_SETSIG
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{ F_SETSIG, "F_SETSIG" },
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#endif
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#ifdef F_GETSIG
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{ F_GETSIG, "F_GETSIG" },
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#endif
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#ifdef F_CHKFL
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{ F_CHKFL, "F_CHKFL" },
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#endif
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#ifdef F_DUP2FD
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{ F_DUP2FD, "F_DUP2FD" },
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#endif
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#ifdef F_ALLOCSP
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{ F_ALLOCSP, "F_ALLOCSP" },
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#endif
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#ifdef F_ISSTREAM
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{ F_ISSTREAM, "F_ISSTREAM" },
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#endif
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#ifdef F_PRIV
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{ F_PRIV, "F_PRIV" },
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#endif
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#ifdef F_NPRIV
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{ F_NPRIV, "F_NPRIV" },
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#endif
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#ifdef F_QUOTACL
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{ F_QUOTACL, "F_QUOTACL" },
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#endif
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#ifdef F_BLOCKS
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{ F_BLOCKS, "F_BLOCKS" },
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#endif
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#ifdef F_BLKSIZE
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{ F_BLKSIZE, "F_BLKSIZE" },
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#endif
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#ifdef F_GETOWN
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{ F_GETOWN, "F_GETOWN" },
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#endif
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#ifdef F_SETOWN
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{ F_SETOWN, "F_SETOWN" },
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#endif
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#ifdef F_REVOKE
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{ F_REVOKE, "F_REVOKE" },
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#endif
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#ifdef F_SETLK
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{ F_SETLK, "F_SETLK" },
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#endif
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#ifdef F_SETLKW
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{ F_SETLKW, "F_SETLKW" },
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#endif
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#ifdef F_FREESP
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{ F_FREESP, "F_FREESP" },
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#endif
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#ifdef F_GETLK
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{ F_GETLK, "F_GETLK" },
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#endif
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#ifdef F_SETLK64
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{ F_SETLK64, "F_SETLK64" },
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#endif
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#ifdef F_SETLKW64
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{ F_SETLKW64, "F_SETLKW64" },
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#endif
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#ifdef F_FREESP64
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{ F_FREESP64, "F_FREESP64" },
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#endif
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#ifdef F_GETLK64
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{ F_GETLK64, "F_GETLK64" },
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#endif
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#ifdef F_SHARE
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{ F_SHARE, "F_SHARE" },
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#endif
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#ifdef F_UNSHARE
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{ F_UNSHARE, "F_UNSHARE" },
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#endif
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{ 0, NULL },
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};
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static const struct xlat fdflags[] = {
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#ifdef FD_CLOEXEC
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{ FD_CLOEXEC, "FD_CLOEXEC" },
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#endif
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{ 0, NULL },
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};
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#ifdef LOCK_SH
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static const struct xlat flockcmds[] = {
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{ LOCK_SH, "LOCK_SH" },
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{ LOCK_EX, "LOCK_EX" },
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{ LOCK_NB, "LOCK_NB" },
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{ LOCK_UN, "LOCK_UN" },
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{ 0, NULL },
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};
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#endif /* LOCK_SH */
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static const struct xlat lockfcmds[] = {
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{ F_RDLCK, "F_RDLCK" },
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{ F_WRLCK, "F_WRLCK" },
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{ F_UNLCK, "F_UNLCK" },
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#ifdef F_EXLCK
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{ F_EXLCK, "F_EXLCK" },
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#endif
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#ifdef F_SHLCK
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{ F_SHLCK, "F_SHLCK" },
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#endif
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{ 0, NULL },
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};
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static const struct xlat whence[] = {
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{ SEEK_SET, "SEEK_SET" },
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{ SEEK_CUR, "SEEK_CUR" },
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{ SEEK_END, "SEEK_END" },
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{ 0, NULL },
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};
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#ifndef HAVE_LONG_LONG_OFF_T
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/* fcntl/lockf */
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static void
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printflock(tcp, addr, getlk)
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struct tcb *tcp;
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long addr;
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int getlk;
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{
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struct flock fl;
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if (umove(tcp, addr, &fl) < 0) {
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tprintf("{...}");
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return;
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}
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tprintf("{type=");
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printxval(lockfcmds, fl.l_type, "F_???");
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tprintf(", whence=");
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printxval(whence, fl.l_whence, "SEEK_???");
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tprintf(", start=%ld, len=%ld", fl.l_start, fl.l_len);
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if (getlk)
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tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
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else
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tprintf("}");
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}
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#endif
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#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
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/* fcntl/lockf */
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static void
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printflock64(tcp, addr, getlk)
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struct tcb *tcp;
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long addr;
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int getlk;
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{
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struct flock64 fl;
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if (umove(tcp, addr, &fl) < 0) {
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tprintf("{...}");
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return;
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}
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tprintf("{type=");
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printxval(lockfcmds, fl.l_type, "F_???");
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tprintf(", whence=");
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printxval(whence, fl.l_whence, "SEEK_???");
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tprintf(", start=%lld, len=%lld", (long long) fl.l_start, (long long) fl.l_len);
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if (getlk)
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tprintf(", pid=%lu}", (unsigned long) fl.l_pid);
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else
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tprintf("}");
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}
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#endif
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static char *
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sprintflags(xlat, flags)
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const struct xlat *xlat;
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int flags;
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{
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static char outstr[1024];
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char *sep;
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strcpy(outstr, "flags ");
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sep = "";
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for (; xlat->str; xlat++) {
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if ((flags & xlat->val) == xlat->val) {
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sprintf(outstr + strlen(outstr),
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"%s%s", sep, xlat->str);
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sep = "|";
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flags &= ~xlat->val;
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}
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}
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if (flags)
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sprintf(outstr + strlen(outstr),
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"%s%#x", sep, flags);
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return outstr;
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}
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int
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sys_fcntl(tcp)
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struct tcb *tcp;
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{
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extern const struct xlat openmodes[];
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if (entering(tcp)) {
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tprintf("%ld, ", tcp->u_arg[0]);
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printxval(fcntlcmds, tcp->u_arg[1], "F_???");
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switch (tcp->u_arg[1]) {
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case F_SETFD:
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tprintf(", ");
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if (printflags(fdflags, tcp->u_arg[2]) == 0)
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tprintf("0");
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break;
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case F_SETOWN: case F_DUPFD:
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tprintf(", %ld", tcp->u_arg[2]);
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break;
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case F_SETFL:
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tprintf(", ");
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if (printflags(openmodes, tcp->u_arg[2] + 1) == 0)
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tprintf("0");
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break;
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case F_SETLK: case F_SETLKW:
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#ifdef F_FREESP
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case F_FREESP:
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#endif
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tprintf(", ");
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printflock(tcp, tcp->u_arg[2], 0);
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break;
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#if _LFS64_LARGEFILE
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#ifdef F_FREESP64
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case F_FREESP64:
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#endif
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/* Linux glibc defines SETLK64 as SETLK,
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even though the kernel has different values - as does Solaris. */
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#if defined(F_SETLK64) && F_SETLK64+0!=F_SETLK
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case F_SETLK64:
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#endif
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#if defined(F_SETLKW64) && F_SETLKW64+0!=F_SETLKW
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case F_SETLKW64:
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#endif
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tprintf(", ");
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printflock64(tcp, tcp->u_arg[2], 0);
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break;
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#endif
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}
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}
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else {
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switch (tcp->u_arg[1]) {
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case F_DUPFD:
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case F_SETFD: case F_SETFL:
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case F_SETLK: case F_SETLKW:
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case F_SETOWN: case F_GETOWN:
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break;
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case F_GETFD:
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if (tcp->u_rval == 0)
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return 0;
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tcp->auxstr = sprintflags(fdflags, tcp->u_rval);
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return RVAL_HEX|RVAL_STR;
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case F_GETFL:
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tcp->auxstr = sprintflags(openmodes, tcp->u_rval + 1);
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return RVAL_HEX|RVAL_STR;
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case F_GETLK:
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tprintf(", ");
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printflock(tcp, tcp->u_arg[2], 1);
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break;
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#if _LFS64_LARGEFILE
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#if defined(F_GETLK64) && F_GETLK64+0!=F_GETLK
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case F_GETLK64:
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#endif
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tprintf(", ");
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printflock64(tcp, tcp->u_arg[2], 1);
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break;
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#endif
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default:
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tprintf(", %#lx", tcp->u_arg[2]);
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break;
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}
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}
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return 0;
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}
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#ifdef LOCK_SH
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int
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sys_flock(tcp)
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struct tcb *tcp;
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{
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if (entering(tcp)) {
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tprintf("%ld, ", tcp->u_arg[0]);
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if (!printflags(flockcmds, tcp->u_arg[1]))
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tprintf("LOCK_???");
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}
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return 0;
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}
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#endif /* LOCK_SH */
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int
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sys_close(tcp)
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struct tcb *tcp;
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{
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if (entering(tcp)) {
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tprintf("%ld", tcp->u_arg[0]);
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}
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return 0;
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}
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int
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sys_dup(tcp)
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struct tcb *tcp;
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{
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if (entering(tcp)) {
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tprintf("%ld", tcp->u_arg[0]);
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}
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return 0;
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}
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int
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sys_dup2(tcp)
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struct tcb *tcp;
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{
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if (entering(tcp)) {
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tprintf("%ld, %ld", tcp->u_arg[0], tcp->u_arg[1]);
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}
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return 0;
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}
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int
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sys_getdtablesize(tcp)
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struct tcb *tcp;
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{
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return 0;
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}
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static int
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decode_select(tcp, args, bitness)
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struct tcb *tcp;
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long *args;
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int bitness;
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{
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int i, j, nfds;
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fd_set fds;
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struct timeval tv;
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#ifdef ALPHA
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struct timeval32 {
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unsigned tv_sec;
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unsigned tv_usec;
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} *tv32;
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#endif
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static char outstr[1024];
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char *sep;
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long arg;
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if (entering(tcp)) {
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nfds = args[0];
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tprintf("%d", nfds);
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for (i = 0; i < 3; i++) {
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arg = args[i+1];
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if (arg == 0) {
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tprintf(", NULL");
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continue;
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}
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if (!verbose(tcp)) {
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tprintf(", %#lx", arg);
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continue;
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}
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if (umove(tcp, arg, &fds) < 0) {
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tprintf(", [?]");
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continue;
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}
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tprintf(", [");
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for (j = 0, sep = ""; j < nfds; j++) {
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if (FD_ISSET(j, &fds)) {
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tprintf("%s%u", sep, j);
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sep = " ";
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}
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}
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tprintf("]");
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}
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if (!args[4])
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tprintf(", NULL");
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else if (!verbose(tcp))
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tprintf(", %#lx", args[4]);
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else if (umove(tcp, args[4], &tv) < 0)
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tprintf(", {...}");
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else {
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#ifdef ALPHA
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if (bitness) {
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tv32=(struct timeval32*)&tv;
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tprintf(", {%u, %u}", tv32->tv_sec, tv32->tv_usec);
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} else
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#endif
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tprintf(", {%lu, %lu}",
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(long) tv.tv_sec, (long) tv.tv_usec);
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}
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}
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else
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{
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unsigned int cumlen = 0;
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char *sep = "";
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if (syserror(tcp))
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return 0;
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if ((nfds = 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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outstr[0] = '\0';
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for (i = 0; i < 3; i++) {
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int first = 1;
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char str[20];
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tcp->auxstr = outstr;
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arg = args[i+1];
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if (!arg || umove(tcp, arg, &fds) < 0)
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continue;
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for (j = 0; j < args[0]; j++) {
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if (FD_ISSET(j, &fds)) {
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if (first) {
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sprintf(str, "%s%s [%u", sep,
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i == 0 ? "in" :
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i == 1 ? "out" :
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"except", j);
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first = 0;
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sep = ", ";
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}
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else
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sprintf(str, " %u", j);
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cumlen += strlen(str);
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if (cumlen < sizeof(outstr))
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strcat(outstr, str);
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nfds--;
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}
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}
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if (cumlen)
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strcat(outstr, "]");
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if (nfds == 0)
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break;
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}
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#ifdef LINUX
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/* This contains no useful information on SunOS. */
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if (args[4]) {
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char str[20];
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if (umove(tcp, args[4], &tv) >= 0) {
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#ifdef ALPHA
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if (bitness) {
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tv32=(struct timeval32*)&tv;
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sprintf(str, "%sleft {%u, %u}", sep,
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tv32->tv_sec, tv32->tv_usec);
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} else
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#endif
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sprintf(str, "%sleft {%lu, %lu}", sep,
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(long) tv.tv_sec, (long) tv.tv_usec);
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if ((cumlen += strlen(str)) < sizeof(outstr))
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strcat(outstr, str);
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}
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}
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#endif /* LINUX */
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return RVAL_STR;
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}
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|
return 0;
|
|
}
|
|
|
|
#ifdef LINUX
|
|
|
|
int
|
|
sys_oldselect(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
long args[5];
|
|
|
|
if (umoven(tcp, tcp->u_arg[0], sizeof args, (char *) args) < 0) {
|
|
tprintf("[...]");
|
|
return 0;
|
|
}
|
|
return decode_select(tcp, args, 0);
|
|
}
|
|
|
|
#ifdef ALPHA
|
|
int
|
|
sys_osf_select(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
long *args = tcp->u_arg;
|
|
return decode_select(tcp, args, 1);
|
|
}
|
|
#endif
|
|
|
|
static struct xlat epollctls[] = {
|
|
#ifdef EPOLL_CTL_ADD
|
|
{ EPOLL_CTL_ADD, "EPOLL_CTL_ADD" },
|
|
#endif
|
|
#ifdef EPOLL_CTL_MOD
|
|
{ EPOLL_CTL_MOD, "EPOLL_CTL_MOD" },
|
|
#endif
|
|
#ifdef EPOLL_CTL_DEL
|
|
{ EPOLL_CTL_DEL, "EPOLL_CTL_DEL" },
|
|
#endif
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static struct xlat epollevents[] = {
|
|
#ifdef EPOLLIN
|
|
{ EPOLLIN, "EPOLLIN" },
|
|
#endif
|
|
#ifdef EPOLLPRI
|
|
{ EPOLLPRI, "EPOLLPRI" },
|
|
#endif
|
|
#ifdef EPOLLOUT
|
|
{ EPOLLOUT, "EPOLLOUT" },
|
|
#endif
|
|
#ifdef EPOLLRDNORM
|
|
{ EPOLLRDNORM, "EPOLLRDNORM" },
|
|
#endif
|
|
#ifdef EPOLLRDBAND
|
|
{ EPOLLRDBAND, "EPOLLRDBAND" },
|
|
#endif
|
|
#ifdef EPOLLWRNORM
|
|
{ EPOLLWRNORM, "EPOLLWRNORM" },
|
|
#endif
|
|
#ifdef EPOLLWRBAND
|
|
{ EPOLLWRBAND, "EPOLLWRBAND" },
|
|
#endif
|
|
#ifdef EPOLLMSG
|
|
{ EPOLLMSG, "EPOLLMSG" },
|
|
#endif
|
|
#ifdef EPOLLERR
|
|
{ EPOLLERR, "EPOLLERR" },
|
|
#endif
|
|
#ifdef EPOLLHUP
|
|
{ EPOLLHUP, "EPOLLHUP" },
|
|
#endif
|
|
#ifdef EPOLLONESHOT
|
|
{ EPOLLONESHOT, "EPOLLONESHOT" },
|
|
#endif
|
|
#ifdef EPOLLET
|
|
{ EPOLLET, "EPOLLET" },
|
|
#endif
|
|
{ 0, NULL }
|
|
};
|
|
|
|
int
|
|
sys_epoll_create(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp))
|
|
tprintf("%ld", tcp->u_arg[0]);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef HAVE_SYS_EPOLL_H
|
|
static void
|
|
print_epoll_event(ev)
|
|
struct epoll_event *ev;
|
|
{
|
|
tprintf("{");
|
|
if (printflags(epollevents, ev->events) == 0)
|
|
tprintf("0");
|
|
/* We cannot know what format the program uses, so print u32 and u64
|
|
which will cover every value. */
|
|
tprintf(", {u32=%" PRIu32 ", u64=%" PRIu64 "}}",
|
|
ev->data.u32, ev->data.u64);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
sys_epoll_ctl(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp)) {
|
|
tprintf("%ld, ", tcp->u_arg[0]);
|
|
printxval(epollctls, tcp->u_arg[1], "EPOLL_CTL_???");
|
|
tprintf(", %ld, ", tcp->u_arg[2]);
|
|
if (tcp->u_arg[3] == 0)
|
|
tprintf("NULL");
|
|
else {
|
|
#ifdef HAVE_SYS_EPOLL_H
|
|
struct epoll_event ev;
|
|
else if (umove(tcp, tcp->u_arg[3], &ev) == 0)
|
|
print_epoll_event(&ev);
|
|
else
|
|
#endif
|
|
tprintf("{...}");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sys_epoll_wait(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
if (entering(tcp))
|
|
tprintf("%ld, ", tcp->u_arg[0]);
|
|
else {
|
|
if (syserror(tcp))
|
|
tprintf("%lx", tcp->u_arg[1]);
|
|
else if (tcp->u_rval == 0)
|
|
tprintf("{}");
|
|
else {
|
|
#ifdef HAVE_SYS_EPOLL_H
|
|
struct epoll_event evs[tcp->u_rval];
|
|
if (umove(tcp, tcp->u_arg[1], evs) == 0) {
|
|
unsigned long i;
|
|
tprintf("{");
|
|
for (i = 0; i < tcp->u_rval; ++i) {
|
|
if (i > 0)
|
|
tprintf(", ");
|
|
print_epoll_event(&evs[i]);
|
|
}
|
|
tprintf("}");
|
|
}
|
|
else
|
|
#endif
|
|
tprintf("{...}");
|
|
}
|
|
tprintf(", %ld, %ld", tcp->u_arg[2], tcp->u_arg[3]);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* LINUX */
|
|
|
|
int
|
|
sys_select(tcp)
|
|
struct tcb *tcp;
|
|
{
|
|
long *args = tcp->u_arg;
|
|
return decode_select(tcp, args, 0);
|
|
}
|