about summary refs log tree commit diff stats
path: root/src/LYClean.c
blob: 1b411319c1b750c0e5a380970ea689063105f872 (plain) (blame)
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
#include "HTUtils.h"
#include "tcp.h"
#include "LYCurses.h"
#include "LYUtils.h"
#include "LYSignal.h"
#include "LYClean.h"
#include "LYGlobalDefs.h"
#include "LYStrings.h"
#include "LYTraversal.h"

#include "LYexit.h"
#include "LYLeaks.h"

#define FREE(x) if (x) {free(x); x = NULL;}

#ifdef VMS
BOOLEAN HadVMSInterrupt = FALSE;
#endif /* VMS */

/*
 *  Interrupt handler.  Stop curses and exit gracefully.
 */
PUBLIC void cleanup_sig ARGS1(
	int,		sig)
{

#ifdef IGNORE_CTRL_C
    if (sig == SIGINT)	{
    /*
     *  Need to rearm the signal.
     */
    signal(SIGINT, cleanup_sig);
    sigint = TRUE;
    return;
    }
#endif /* IGNORE_CTRL_C */

#ifdef VMS
    if (!dump_output_immediately) {
        int c;

	/*
	 *  Reassert the AST.
	 */
	(void) signal(SIGINT, cleanup_sig);
	HadVMSInterrupt = TRUE;
	if (!LYCursesON)
	    return;

        /*
	 *  Refresh screen to get rid of "cancel" message, then query.
	 */
	clearok(curscr, TRUE);
	refresh();

	/*
	 *  Ask if exit is intended.
	 */
	_statusline(REALLY_EXIT);
	c = LYgetch();
#ifdef QUIT_DEFAULT_YES
	if (TOUPPER(c) == 'N' ||
	    c == 7)
#else
	if (TOUPPER(c) != 'Y')
#endif /* QUIT_DEFAULT_YES */
	    return;
    }
#endif /* VMS */

    /*
     *  Ignore further interrupts. - mhc: 11/2/91
     */
#ifndef NOSIGHUP
    (void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */

#ifdef VMS 
    /*
     *  Use ttclose() from cleanup() for VMS if not dumping.
     */
    if (dump_output_immediately)
#else /* Unix: */
    (void) signal(SIGINT, SIG_IGN);
#endif /* VMS */

    (void) signal(SIGTERM, SIG_IGN);

    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) {
	    printf("\r\nExiting via interrupt: %d\r\n", sig);
	    fflush(stdout);
	}
#ifndef NOSIGHUP
    } else {
	cleanup_files();
    }
#endif /* NOSIGHUP */

#ifndef NOSIGHUP
	 (void) signal(SIGHUP, SIG_DFL);
#endif /* NOSIGHUP */
    (void) signal(SIGTERM, SIG_DFL);
#ifndef VMS
    (void) signal(SIGINT, SIG_DFL);
#endif /* !VMS */
#ifdef SIGTSTP
    if (no_suspend)
	(void) signal(SIGTSTP, SIG_DFL);
#endif /* SIGTSTP */
    if (sig != 0) {
        exit(0);
    }
}

/*
 *  Called by Interrupt handler or at quit time.  
 *  Erases the temporary files that lynx created
 *  temporary files are removed by tempname 
 *  which created them.
 */
PUBLIC void cleanup_files NOARGS
{
    char filename[256];

    tempname(filename, REMOVE_FILES);
    FREE(lynx_temp_space);
}

PUBLIC void cleanup NOARGS
{
    int i;
#ifdef VMS
    extern BOOLEAN DidCleanup;
#endif /* VMS */

    /*
     *  Cleanup signals - just in case.
     *  Ignore further interrupts. - mhc: 11/2/91
     */
#ifndef NOSIGHUP
	 (void) signal(SIGHUP, SIG_IGN);
#endif /* NOSIGHUP */
    (void) signal (SIGTERM, SIG_IGN);

#ifndef VMS  /* use ttclose() from cleanup() for VMS */
    (void) signal (SIGINT, SIG_IGN);
#endif /* !VMS */

    if (LYCursesON) {
        move(LYlines-1, 0);
        clrtoeol();

        lynx_stop_all_colors ();
        refresh();

        stop_curses();
    }
    cleanup_files();
    for (i = 0; i < nhist; i++) {
        FREE(history[i].title);
        FREE(history[i].address);
        FREE(history[i].post_data);
        FREE(history[i].post_content_type);
	FREE(history[i].bookmark);
    }
    nhist = 0;
#ifdef VMS
    ttclose();
    DidCleanup = TRUE;
#endif /* VMS */

    fflush(stdout);
    fflush(stderr);
    if (LYTraceLogFP != NULL) {
        fclose(LYTraceLogFP);
    }
}