xref: /dragonfly/usr.bin/window/wwterminfo.c (revision f746689a)
1 /*	$NetBSD: wwterminfo.c,v 1.5 2003/08/07 11:17:45 agc Exp $	*/
2 
3 /*
4  * Copyright (c) 1982, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Edward Wang at The University of California, Berkeley.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #include <sys/cdefs.h>
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)wwterminfo.c	8.1 (Berkeley) 6/6/93";
39 #else
40 __RCSID("$NetBSD: wwterminfo.c,v 1.5 2003/08/07 11:17:45 agc Exp $");
41 #endif
42 #endif /* not lint */
43 
44 #ifdef TERMINFO
45 
46 #include <sys/types.h>
47 #include <sys/stat.h>
48 #include <sys/wait.h>
49 
50 #include <stdio.h>
51 #include <stdlib.h>
52 #include <paths.h>
53 #include <unistd.h>
54 #include "local.h"
55 #include "ww.h"
56 
57 /*
58  * Terminfo support
59  *
60  * Written by Brian Buhrow
61  *
62  * Subsequently modified by Edward Wang
63  */
64 
65 /*
66  * Initialize the working terminfo directory
67  */
68 int
69 wwterminfoinit()
70 {
71 	FILE *fp;
72 	char buf[2048];
73 
74 		/* make the directory */
75 	(void) sprintf(wwterminfopath, "%swwinXXXXXX", _PATH_TMP);
76 	if (mkdtemp(wwterminfopath) == NULL) ||
77 	    chmod(wwterminfopath, 0755) < 0) {
78 		wwerrno = WWE_SYS;
79 		return -1;
80 	}
81 	(void) setenv("TERMINFO", wwterminfopath, 1);
82 		/* make a termcap entry and turn it into terminfo */
83 	(void) sprintf(buf, "%s/cap", wwterminfopath);
84 	if ((fp = fopen(buf, "w")) == NULL) {
85 		wwerrno = WWE_SYS;
86 		return -1;
87 	}
88 	(void) fprintf(fp, "%sco#%d:li#%d:%s\n",
89 		WWT_TERMCAP, wwncol, wwnrow, wwwintermcap);
90 	(void) fclose(fp);
91 	(void) sprintf(buf,
92 		"cd %s; %s cap >info 2>/dev/null; %s info >/dev/null 2>&1",
93 		wwterminfopath, _PATH_CAPTOINFO, _PATH_TIC);
94 	(void) system(buf);
95 	return 0;
96 }
97 
98 /*
99  * Delete the working terminfo directory at shutdown
100  */
101 int
102 wwterminfoend()
103 {
104 	int pstat;
105 	pid_t pid;
106 
107 	pid = vfork();
108 	switch (pid) {
109 	case -1:
110 		/* can't really do (or say) anything about errors */
111 		return -1;
112 	case 0:
113 		execl(_PATH_RM, _PATH_RM, "-rf", wwterminfopath, 0);
114 		_exit(1);
115 	}
116 	pid = waitpid(pid, &pstat, 0);
117 	if (pid == -1 || !WIFEXITED(pstat) || WEXITSTATUS(pstat) != 0)
118 		return -1;
119 	return 0;
120 }
121 
122 #endif /* TERMINFO */
123