1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/* $LynxId: LYClean.c,v 1.40 2013/10/10 23:47:25 tom Exp $ */
#include <HTUtils.h>
#include <LYCurses.h>
#include <LYUtils.h>
#include <LYSignal.h>
#include <LYClean.h>
#include <LYMainLoop.h>
#include <LYGlobalDefs.h>
#include <LYTraversal.h>
#include <LYHistory.h>
#include <LYCookie.h>
#include <LYSession.h>
#include <UCAuto.h>
#include <HTAlert.h>
#include <LYexit.h>
#include <LYLeaks.h>
#ifdef DJGPP
extern void sig_handler_watt(int);
#endif /* DJGPP */
#ifdef VMS
BOOLEAN HadVMSInterrupt = FALSE;
#endif /* VMS */
/*
* Interrupt handler. Stop curses and exit gracefully.
*/
void cleanup_sig(int sig)
{
#ifdef IGNORE_CTRL_C
if (sig == SIGINT) {
/*
* Need to rearm the signal.
*/
#ifdef DJGPP
if (wathndlcbrk) {
sig_handler_watt(sig); /* Use WATT-32 signal handler */
}
#endif /* DJGPP */
signal(SIGINT, cleanup_sig);
sigint = TRUE;
#ifdef DJGPP
_eth_release();
_eth_init();
#endif /* DJGPP */
return;
}
#endif /* IGNORE_CTRL_C */
#ifdef VMS
if (!dump_output_immediately) {
/*
* Reassert the AST.
*/
(void) signal(SIGINT, cleanup_sig);
if (LYCursesON) {
lynx_force_repaint(); /* wipe away the "cancel" message */
LYrefresh();
/*
* Ask if exit is intended.
*/
if (LYQuitDefaultYes == TRUE) {
int Dft = ((LYQuitDefaultYes == TRUE) ? YES : NO);
int c = HTConfirmDefault(REALLY_EXIT, Dft);
HadVMSInterrupt = TRUE;
if (c != Dft) {
return;
}
}
} else {
return;
}
}
#endif /* VMS */
/*
* Ignore signals from terminal.
*/
#ifndef NOSIGHUP
(void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */
#ifdef VMS
/*
* Use ttclose() from cleanup() for VMS if not dumping.
*/
if (dump_output_immediately)
(void) signal(SIGTERM, SIG_IGN);
#else /* Unix: */
(void) signal(SIGINT, SIG_IGN);
(void) signal(SIGTERM, SIG_IGN);
#endif /* VMS */
if (traversal)
dump_traversal_history();
#ifndef NOSIGHUP
if (sig != SIGHUP) {
#endif /* NOSIGHUP */
if (!dump_output_immediately) {
/*
* cleanup() also calls cleanup_files().
*/
cleanup();
}
if (sig != 0) {
SetOutputMode(O_TEXT);
printf("\n\n%s %d\n\n",
gettext("Exiting via interrupt:"),
sig);
fflush(stdout);
}
#ifndef NOSIGHUP
} else {
#ifdef USE_SESSIONS
/*
* It is useful to save the session if a user closed lynx in a
* nonstandard way, such as closing xterm window or in even a crash.
*/
SaveSession();
#endif /* USE_SESSIONS */
cleanup_files();
}
#endif /* NOSIGHUP */
if (sig != 0) {
exit_immediately(EXIT_SUCCESS);
} else {
reset_signals();
}
}
/*
* Called by interrupt handler or at quit-time, this erases the temporary files
* that lynx created.
*/
void cleanup_files(void)
{
LYCleanupTemp();
FREE(lynx_temp_space);
}
void cleanup(void)
{
/*
* Ignore signals from terminal.
*/
#ifndef NOSIGHUP
(void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */
#ifndef VMS /* use ttclose() from cleanup() for VMS */
(void) signal(SIGINT, SIG_IGN);
#endif /* !VMS */
(void) signal(SIGTERM, SIG_IGN);
if (LYCursesON) {
LYParkCursor();
lynx_stop_all_colors();
LYrefresh();
stop_curses();
}
#ifdef EXP_CHARTRANS_AUTOSWITCH
/*
* Currently implemented only for LINUX: Restore original font.
*/ UCChangeTerminalCodepage(-1, (LYUCcharset *) 0);
#endif /* EXP_CHARTRANS_AUTOSWITCH */
#ifdef USE_PERSISTENT_COOKIES
/*
* This can go right here for now. We need to work up a better place
* to save cookies for the next release, preferably whenever a new
* persistent cookie is received or used. Some sort of protocol to
* handle two processes writing to the cookie file needs to be worked
* out as well.
*/
if (persistent_cookies)
LYStoreCookies(LYCookieSaveFile);
#endif
#ifdef USE_SESSIONS
SaveSession();
#endif /* USE_SESSIONS */
cleanup_files();
#ifdef VMS
ttclose();
DidCleanup = TRUE;
#endif /* VMS */
/*
* If we're looking at memory leaks, hang onto the trace file, since there
* is no memory freed in this function, and it is a nuisance to not be able
* to trace the cleanup activity -TD
*/
#ifndef LY_FIND_LEAKS
LYCloseTracelog();
#endif
}
|