a2eddaf1c6
of 4 longs used as a bitmask. sv4r4_sigfillset has been broken for a while, probably since rev 1.5. This patch fixes SVR4_NSIG (i.e.: sets it to the actual number of signals, instead of the number of bits in the mask) because some SysVR4 clients honestly seem to care about whether bits in the signal mask are set for non-existant signals. Additionally, the svr4_sigfillset macro has been replaced by a fully fledged function, because the macro didn't actually work (it returned an all-ones mask, but we don't want that: we want 0's set where FreeBSD doesn't actually have a signal which is the same as an SysVR4 signal, for example). SysVR4 clients can now successfully ignore signals, although catching them remains problematic (see commit log message for rev1.13 of sys/i386/svr4/svr4_machdep.c for more info).
142 lines
4.4 KiB
C
142 lines
4.4 KiB
C
/*
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* Copyright (c) 1998 Mark Newton
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* Copyright (c) 1994 Christos Zoulas
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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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* $FreeBSD$
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*/
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#ifndef _SVR4_SIGNAL_H_
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#define _SVR4_SIGNAL_H_
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#include <i386/svr4/svr4_machdep.h>
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#include <svr4/svr4_siginfo.h>
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#define SVR4_SIGHUP 1
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#define SVR4_SIGINT 2
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#define SVR4_SIGQUIT 3
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#define SVR4_SIGILL 4
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#define SVR4_SIGTRAP 5
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#define SVR4_SIGIOT 6
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#define SVR4_SIGABRT 6
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#define SVR4_SIGEMT 7
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#define SVR4_SIGFPE 8
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#define SVR4_SIGKILL 9
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#define SVR4_SIGBUS 10
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#define SVR4_SIGSEGV 11
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#define SVR4_SIGSYS 12
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#define SVR4_SIGPIPE 13
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#define SVR4_SIGALRM 14
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#define SVR4_SIGTERM 15
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#define SVR4_SIGUSR1 16
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#define SVR4_SIGUSR2 17
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#define SVR4_SIGCLD 18
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#define SVR4_SIGCHLD 18
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#define SVR4_SIGPWR 19
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#define SVR4_SIGWINCH 20
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#define SVR4_SIGURG 21
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#define SVR4_SIGPOLL 22
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#define SVR4_SIGIO 22
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#define SVR4_SIGSTOP 23
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#define SVR4_SIGTSTP 24
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#define SVR4_SIGCONT 25
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#define SVR4_SIGTTIN 26
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#define SVR4_SIGTTOU 27
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#define SVR4_SIGVTALRM 28
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#define SVR4_SIGPROF 29
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#define SVR4_SIGXCPU 30
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#define SVR4_SIGXFSZ 31
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#define SVR4_NSIG 32
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#define SVR4_SIGTBLSZ 31
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#define SVR4_SIGNO_MASK 0x00FF
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#define SVR4_SIGNAL_MASK 0x0000
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#define SVR4_SIGDEFER_MASK 0x0100
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#define SVR4_SIGHOLD_MASK 0x0200
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#define SVR4_SIGRELSE_MASK 0x0400
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#define SVR4_SIGIGNORE_MASK 0x0800
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#define SVR4_SIGPAUSE_MASK 0x1000
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typedef void (*svr4_sig_t) __P((int, svr4_siginfo_t *, void *));
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#define SVR4_SIG_DFL (svr4_sig_t) 0
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#define SVR4_SIG_ERR (svr4_sig_t) -1
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#define SVR4_SIG_IGN (svr4_sig_t) 1
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#define SVR4_SIG_HOLD (svr4_sig_t) 2
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#define SVR4_SIGNO(a) ((a) & SVR4_SIGNO_MASK)
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#define SVR4_SIGCALL(a) ((a) & ~SVR4_SIGNO_MASK)
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#define SVR4_SIG_BLOCK 1
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#define SVR4_SIG_UNBLOCK 2
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#define SVR4_SIG_SETMASK 3
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extern int bsd_to_svr4_sig[];
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extern int svr4_to_bsd_sig[];
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#define SVR4_BSD2SVR4_SIG(sig) \
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(((sig) <= SVR4_SIGTBLSZ) ? bsd_to_svr4_sig[_SIG_IDX(sig)] : sig)
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#define SVR4_SVR42BSD_SIG(sig) \
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(((sig) <= SVR4_SIGTBLSZ) ? svr4_to_bsd_sig[_SIG_IDX(sig)] : sig)
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typedef struct {
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u_long bits[4];
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} svr4_sigset_t;
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struct svr4_sigaction {
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int ssa_flags;
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svr4_sig_t ssa_handler;
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svr4_sigset_t ssa_mask;
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int ssa_reserved[2];
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};
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struct svr4_sigaltstack {
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char *ss_sp;
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int ss_size;
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int ss_flags;
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};
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/* sa_flags */
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#define SVR4_SA_ONSTACK 0x00000001
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#define SVR4_SA_RESETHAND 0x00000002
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#define SVR4_SA_RESTART 0x00000004
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#define SVR4_SA_SIGINFO 0x00000008
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#define SVR4_SA_NODEFER 0x00000010
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#define SVR4_SA_NOCLDWAIT 0x00010000 /* No zombies */
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#define SVR4_SA_NOCLDSTOP 0x00020000 /* No jcl */
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#define SVR4_SA_ALLBITS 0x0003001f
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/* ss_flags */
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#define SVR4_SS_ONSTACK 0x00000001
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#define SVR4_SS_DISABLE 0x00000002
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#define SVR4_SS_ALLBITS 0x00000003
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void bsd_to_svr4_sigaltstack __P((const struct sigaltstack *, struct svr4_sigaltstack *));
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void bsd_to_svr4_sigset __P((const sigset_t *, svr4_sigset_t *));
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void svr4_to_bsd_sigaltstack __P((const struct svr4_sigaltstack *, struct sigaltstack *));
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void svr4_to_bsd_sigset __P((const svr4_sigset_t *, sigset_t *));
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void svr4_sendsig(sig_t, int, sigset_t *, u_long);
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#endif /* !_SVR4_SIGNAL_H_ */
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