diff options
Diffstat (limited to 'usr/src/lib/libbc/libc/sys/common/sigaction.c')
| -rw-r--r-- | usr/src/lib/libbc/libc/sys/common/sigaction.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/usr/src/lib/libbc/libc/sys/common/sigaction.c b/usr/src/lib/libbc/libc/sys/common/sigaction.c deleted file mode 100644 index 1b1ccccf10..0000000000 --- a/usr/src/lib/libbc/libc/sys/common/sigaction.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2004 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -#include <stdio.h> -#include <errno.h> -#include <signal.h> -#include "signalmap.h" - -static void signal_init(void); -#pragma init(signal_init) - -extern void (*handlers[])(); -extern void maphandler(int, int, struct sigcontext *, char *); -extern void (*_siguhandler[])(); /* libucb */ -extern void _sigvechandler(int, void*, void*); /* libucb */ - -extern int maptonewsig(); -extern int _sigaction(); -extern int maptonewmask(); -extern int maptooldmask(); -extern int _signal(); -extern int _sigprocmask(); -extern char *memset(); -extern int _sigpending(); - -typedef struct { - unsigned long __sigbits[4]; -} S5_sigset_t; - -typedef struct { - int sa_flags; - void (*sa_handler)(); - S5_sigset_t sa_mask; - int sa_resv[2]; -} S5_sigaction; - -#define S5_SA_ONSTACK 0x00000001 -#define S5_SA_RESETHAND 0x00000002 -#define S5_SA_RESTART 0x00000004 -#define S5_SA_NOCLDSTOP 0x00020000 - -int -sigaction(sig, act, oact) -int sig; -struct sigaction *act, *oact; -{ - S5_sigaction S5_act; - S5_sigaction S5_oact; - int ret; - int newsig; - void (*oldhand)(); - void (*oldsiguhand)(); - - newsig = maptonewsig(sig); - oldhand = handlers[newsig]; - oldsiguhand = _siguhandler[newsig]; - if (act == NULL) { - ret = _sigaction(newsig, (S5_sigaction *)NULL, &S5_oact); - } else { - S5_act.sa_flags = 0; - if (act->sa_flags & SA_ONSTACK) - S5_act.sa_flags |= S5_SA_ONSTACK; - if (act->sa_flags & SA_RESETHAND) - S5_act.sa_flags |= S5_SA_RESETHAND; - if (act->sa_flags & SA_NOCLDSTOP) - S5_act.sa_flags |= S5_SA_NOCLDSTOP; - if (!(act->sa_flags & SA_INTERRUPT)) - S5_act.sa_flags |= S5_SA_RESTART; - /* - * _sigvechandler() receives control from the OS. - * It calls through _siguhandler[] to maphandler(), - * which maps the signal number new-to-old, and - * calls the user's handler through handlers[]. - */ - handlers[newsig] = act->sa_handler; - _siguhandler[newsig] = maphandler; - if ((act->sa_handler == SIG_DFL) || - (act->sa_handler == SIG_IGN)) - S5_act.sa_handler = act->sa_handler; - else - S5_act.sa_handler = _sigvechandler; - S5_act.sa_mask.__sigbits[0] = maptonewmask(act->sa_mask); - S5_act.sa_mask.__sigbits[1] = 0; - S5_act.sa_mask.__sigbits[2] = 0; - S5_act.sa_mask.__sigbits[3] = 0; - - ret = _sigaction(newsig, &S5_act, &S5_oact); - } - - if ((oact != NULL) && (ret != -1)) { - oact->sa_flags = 0; - if (S5_oact.sa_flags & S5_SA_ONSTACK) - oact->sa_flags |= SA_ONSTACK; - if (S5_oact.sa_flags & S5_SA_RESETHAND) - oact->sa_flags |= SA_RESETHAND; - if (S5_oact.sa_flags & S5_SA_NOCLDSTOP) - oact->sa_flags |= SA_NOCLDSTOP; - if (!(S5_oact.sa_flags & S5_SA_RESTART)) - oact->sa_flags |= SA_INTERRUPT; - if ((S5_oact.sa_handler == SIG_DFL) || - (S5_oact.sa_handler == SIG_IGN)) - oact->sa_handler = S5_oact.sa_handler; - else - oact->sa_handler = oldhand; - oact->sa_mask = maptooldmask(S5_oact.sa_mask.__sigbits[0]); - } - if (ret == -1) { - handlers[newsig] = oldhand; - _siguhandler[newsig] = oldsiguhand; - } - return (ret); -} - -static void -signal_init() { -#define S5_SIGPOLL 22 - _signal(S5_SIGPOLL, SIG_IGN); -#undef S5_SIGPOLL -} - -int -sigprocmask(how, set, oset) -int how; -sigset_t *set, *oset; -{ - int how_map[] = {0, 1, 2, 0, 3}; - int ret; - S5_sigset_t s5_set, s5_oset; - - if (set == NULL) /* query */ - ret = _sigprocmask(how_map[how], NULL, &s5_oset); - else { - memset(&s5_set, 0, sizeof (S5_sigset_t)); - s5_set.__sigbits[0] = maptonewmask(*set); - ret = _sigprocmask(how_map[how], &s5_set, &s5_oset); - } - if ((oset != NULL) && (ret == 0)) - *oset = maptooldmask(s5_oset.__sigbits[0]); - return (ret); -} - -int -sigpending(set) -sigset_t *set; -{ - S5_sigset_t s5_set; - int ret; - - ret = _sigpending(&s5_set); - *set = maptooldmask(s5_set.__sigbits[0]); - return (ret); -} |