diff options
Diffstat (limited to '1.2-netsec/editline/sig.c')
| -rw-r--r-- | 1.2-netsec/editline/sig.c | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/1.2-netsec/editline/sig.c b/1.2-netsec/editline/sig.c deleted file mode 100644 index 0acba1247..000000000 --- a/1.2-netsec/editline/sig.c +++ /dev/null @@ -1,198 +0,0 @@ -/* $NetBSD: sig.c,v 1.9 2002/03/18 16:00:58 christos Exp $ */ - -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Christos Zoulas of Cornell University. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "config.h" -#if !defined(lint) && !defined(SCCSID) -#if 0 -static char sccsid[] = "@(#)sig.c 8.1 (Berkeley) 6/4/93"; -#else -__RCSID("$NetBSD: sig.c,v 1.9 2002/03/18 16:00:58 christos Exp $"); -#endif -#endif /* not lint && not SCCSID */ - -/* - * sig.c: Signal handling stuff. - * our policy is to trap all signals, set a good state - * and pass the ball to our caller. - */ -#include "el.h" -#include <stdlib.h> - -private EditLine *sel = NULL; - -private const int sighdl[] = { -#define _DO(a) (a), - ALLSIGS -#undef _DO - - 1 -}; - -private void sig_handler(int); - -/* sig_handler(): - * This is the handler called for all signals - * XXX: we cannot pass any data so we just store the old editline - * state in a private variable - */ -private void -sig_handler(int signo) -{ - int i; - sigset_t nset, oset; - - (void) sigemptyset(&nset); - (void) sigaddset(&nset, signo); - (void) sigprocmask(SIG_BLOCK, &nset, &oset); - - switch (signo) { - case SIGCONT: - tty_rawmode(sel); - if (ed_redisplay(sel, 0) == CC_REFRESH) - re_refresh(sel); - term__flush(); - break; - - case SIGWINCH: - el_resize(sel); - break; - - default: - tty_cookedmode(sel); - break; - } - - for (i = 0; sighdl[i] != -1; i++) - if (signo == sighdl[i]) - break; - - (void) signal(signo, sel->el_signal[i]); - (void) sigprocmask(SIG_SETMASK, &oset, NULL); - (void) kill(0, signo); -} - - -/* sig_init(): - * Initialize all signal stuff - */ -protected int -sig_init(EditLine *el) -{ - int i; - sigset_t nset, oset; - - (void) sigemptyset(&nset); -#define _DO(a) (void) sigaddset(&nset, a); - ALLSIGS -#undef _DO - (void) sigprocmask(SIG_BLOCK, &nset, &oset); - -#define SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(sig_t)) - - el->el_signal = (sig_t *) el_malloc(SIGSIZE); - if (el->el_signal == NULL) - return (-1); - for (i = 0; sighdl[i] != -1; i++) - el->el_signal[i] = SIG_ERR; - - (void) sigprocmask(SIG_SETMASK, &oset, NULL); - - return (0); -} - - -/* sig_end(): - * Clear all signal stuff - */ -protected void -sig_end(EditLine *el) -{ - - el_free((ptr_t) el->el_signal); - el->el_signal = NULL; -} - - -/* sig_set(): - * set all the signal handlers - */ -protected void -sig_set(EditLine *el) -{ - int i; - sigset_t nset, oset; - - (void) sigemptyset(&nset); -#define _DO(a) (void) sigaddset(&nset, a); - ALLSIGS -#undef _DO - (void) sigprocmask(SIG_BLOCK, &nset, &oset); - - for (i = 0; sighdl[i] != -1; i++) { - sig_t s; - /* This could happen if we get interrupted */ - if ((s = signal(sighdl[i], sig_handler)) != sig_handler) - el->el_signal[i] = s; - } - sel = el; - (void) sigprocmask(SIG_SETMASK, &oset, NULL); -} - - -/* sig_clr(): - * clear all the signal handlers - */ -protected void -sig_clr(EditLine *el) -{ - int i; - sigset_t nset, oset; - - (void) sigemptyset(&nset); -#define _DO(a) (void) sigaddset(&nset, a); - ALLSIGS -#undef _DO - (void) sigprocmask(SIG_BLOCK, &nset, &oset); - - for (i = 0; sighdl[i] != -1; i++) - if (el->el_signal[i] != SIG_ERR) - (void) signal(sighdl[i], el->el_signal[i]); - - sel = NULL; /* we are going to die if the handler is - * called */ - (void) sigprocmask(SIG_SETMASK, &oset, NULL); -} |