1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Christos Zoulas of Cornell University.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if !defined(lint) && !defined(SCCSID)
38static char sccsid[] = "@(#)sig.c 8.1 (Berkeley) 6/4/93";
39#endif /* not lint && not SCCSID */
40
41/*
42 * sig.c: Signal handling stuff.
43 * our policy is to trap all signals, set a good state
44 * and pass the ball to our caller.
45 */
46#include "sys.h"
47#include "el.h"
48#include <stdlib.h>
49
50private EditLine *sel = NULL;
51
52private int sighdl[] = {
53#define _DO(a) (a),
54 ALLSIGS
55#undef _DO
56 -1
57};
58
59private void sig_handler __P((int));
60
61/* sig_handler():
62 * This is the handler called for all signals
63 * XXX: we cannot pass any data so we just store the old editline
64 * state in a private variable
65 */
66private void
67sig_handler(signo)
68 int signo;
69{
70 int i;
71 sigset_t nset, oset;
72
73 (void) sigemptyset(&nset);
74 (void) sigaddset(&nset, signo);
75 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
76
77 switch (signo) {
78 case SIGCONT:
79 tty_rawmode(sel);
80 if (ed_redisplay(sel, 0) == CC_REFRESH)
81 re_refresh(sel);
82 term__flush();
83 break;
84
85 case SIGWINCH:
86 el_resize(sel);
87 break;
88
89 default:
90 tty_cookedmode(sel);
91 break;
92 }
93
94 for (i = 0; sighdl[i] != -1; i++)
95 if (signo == sighdl[i])
96 break;
97
98 (void) signal(signo, sel->el_signal[i]);
99 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
100 (void) kill(0, signo);
101}
102
103
104/* sig_init():
105 * Initialize all signal stuff
106 */
107protected int
108sig_init(el)
109 EditLine *el;
110{
111 int i;
112 sigset_t nset, oset;
113
114 (void) sigemptyset(&nset);
115#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
116 ALLSIGS
117#undef _DO
118 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
119
120#define SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(sig_t))
121
122 el->el_signal = (sig_t *) el_malloc(SIGSIZE);
123 for (i = 0; sighdl[i] != -1; i++)
| 1/*-
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Christos Zoulas of Cornell University.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if !defined(lint) && !defined(SCCSID)
38static char sccsid[] = "@(#)sig.c 8.1 (Berkeley) 6/4/93";
39#endif /* not lint && not SCCSID */
40
41/*
42 * sig.c: Signal handling stuff.
43 * our policy is to trap all signals, set a good state
44 * and pass the ball to our caller.
45 */
46#include "sys.h"
47#include "el.h"
48#include <stdlib.h>
49
50private EditLine *sel = NULL;
51
52private int sighdl[] = {
53#define _DO(a) (a),
54 ALLSIGS
55#undef _DO
56 -1
57};
58
59private void sig_handler __P((int));
60
61/* sig_handler():
62 * This is the handler called for all signals
63 * XXX: we cannot pass any data so we just store the old editline
64 * state in a private variable
65 */
66private void
67sig_handler(signo)
68 int signo;
69{
70 int i;
71 sigset_t nset, oset;
72
73 (void) sigemptyset(&nset);
74 (void) sigaddset(&nset, signo);
75 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
76
77 switch (signo) {
78 case SIGCONT:
79 tty_rawmode(sel);
80 if (ed_redisplay(sel, 0) == CC_REFRESH)
81 re_refresh(sel);
82 term__flush();
83 break;
84
85 case SIGWINCH:
86 el_resize(sel);
87 break;
88
89 default:
90 tty_cookedmode(sel);
91 break;
92 }
93
94 for (i = 0; sighdl[i] != -1; i++)
95 if (signo == sighdl[i])
96 break;
97
98 (void) signal(signo, sel->el_signal[i]);
99 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
100 (void) kill(0, signo);
101}
102
103
104/* sig_init():
105 * Initialize all signal stuff
106 */
107protected int
108sig_init(el)
109 EditLine *el;
110{
111 int i;
112 sigset_t nset, oset;
113
114 (void) sigemptyset(&nset);
115#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
116 ALLSIGS
117#undef _DO
118 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
119
120#define SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(sig_t))
121
122 el->el_signal = (sig_t *) el_malloc(SIGSIZE);
123 for (i = 0; sighdl[i] != -1; i++)
|
125
126 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
127
128 return 0;
129}
130
131
132/* sig_end():
133 * Clear all signal stuff
134 */
135protected void
136sig_end(el)
137 EditLine *el;
138{
139 el_free((ptr_t) el->el_signal);
140 el->el_signal = NULL;
141}
142
143
144/* sig_set():
145 * set all the signal handlers
146 */
147protected void
148sig_set(el)
149 EditLine *el;
150{
151 int i;
152 sigset_t nset, oset;
153
154 (void) sigemptyset(&nset);
155#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
156 ALLSIGS
157#undef _DO
158 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
159
160 for (i = 0; sighdl[i] != -1; i++) {
161 sig_t s;
162 /* This could happen if we get interrupted */
163 if ((s = signal(sighdl[i], sig_handler)) != sig_handler)
164 el->el_signal[i] = s;
165 }
166 sel = el;
167 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
168}
169
170
171/* sig_clr():
172 * clear all the signal handlers
173 */
174protected void
175sig_clr(el)
176 EditLine *el;
177{
178 int i;
179 sigset_t nset, oset;
180
181 (void) sigemptyset(&nset);
182#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
183 ALLSIGS
184#undef _DO
185 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
186
187 for (i = 0; sighdl[i] != -1; i++)
| 125
126 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
127
128 return 0;
129}
130
131
132/* sig_end():
133 * Clear all signal stuff
134 */
135protected void
136sig_end(el)
137 EditLine *el;
138{
139 el_free((ptr_t) el->el_signal);
140 el->el_signal = NULL;
141}
142
143
144/* sig_set():
145 * set all the signal handlers
146 */
147protected void
148sig_set(el)
149 EditLine *el;
150{
151 int i;
152 sigset_t nset, oset;
153
154 (void) sigemptyset(&nset);
155#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
156 ALLSIGS
157#undef _DO
158 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
159
160 for (i = 0; sighdl[i] != -1; i++) {
161 sig_t s;
162 /* This could happen if we get interrupted */
163 if ((s = signal(sighdl[i], sig_handler)) != sig_handler)
164 el->el_signal[i] = s;
165 }
166 sel = el;
167 (void) sigprocmask(SIG_SETMASK, &oset, NULL);
168}
169
170
171/* sig_clr():
172 * clear all the signal handlers
173 */
174protected void
175sig_clr(el)
176 EditLine *el;
177{
178 int i;
179 sigset_t nset, oset;
180
181 (void) sigemptyset(&nset);
182#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
183 ALLSIGS
184#undef _DO
185 (void) sigprocmask(SIG_BLOCK, &nset, &oset);
186
187 for (i = 0; sighdl[i] != -1; i++)
|