Commit | Line | Data |
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60de5df9 | 1 | /* |
46e9ea25 KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
5e8b0e60 KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
60de5df9 EW |
16 | */ |
17 | ||
46e9ea25 | 18 | #ifndef lint |
5e8b0e60 | 19 | static char sccsid[] = "@(#)wwenviron.c 3.20 (Berkeley) %G%"; |
46e9ea25 KB |
20 | #endif /* not lint */ |
21 | ||
aa149fde | 22 | #include "ww.h" |
1e40e125 | 23 | #include <sys/signal.h> |
aa149fde | 24 | |
224ba859 EW |
25 | /* |
26 | * Set up the environment of this process to run in window 'wp'. | |
224ba859 | 27 | */ |
aa149fde EW |
28 | wwenviron(wp) |
29 | register struct ww *wp; | |
30 | { | |
31 | register i; | |
950f1780 | 32 | int pgrp = getpid(); |
cd9c5720 | 33 | char buf[1024]; |
aa149fde | 34 | |
7ecf4dca EW |
35 | if ((i = open("/dev/tty", 0)) < 0) |
36 | goto bad; | |
20029082 | 37 | if (ioctl(i, TIOCNOTTY, (char *)0) < 0) |
7ecf4dca | 38 | goto bad; |
aa149fde | 39 | (void) close(i); |
7ecf4dca EW |
40 | if ((i = wp->ww_socket) < 0 && (i = open(wp->ww_ttyname, 2)) < 0) |
41 | goto bad; | |
eec72f58 EW |
42 | (void) dup2(i, 0); |
43 | (void) dup2(i, 1); | |
44 | (void) dup2(i, 2); | |
45 | for (i = wwdtablesize - 1; i > 2; i--) | |
46 | (void) close(i); | |
20029082 | 47 | (void) ioctl(0, TIOCSPGRP, (char *)&pgrp); |
950f1780 | 48 | (void) setpgrp(pgrp, pgrp); |
3c1a9287 | 49 | /* SIGPIPE is the only one we ignore */ |
1e40e125 | 50 | (void) signal(SIGPIPE, SIG_DFL); |
3c1a9287 | 51 | (void) sigsetmask(0); |
cd9c5720 EW |
52 | /* |
53 | * Two conditions that make destructive setenv ok: | |
54 | * 1. setenv() copies the string, | |
55 | * 2. we've already called tgetent which copies the termcap entry. | |
56 | */ | |
cf28fdac EW |
57 | (void) sprintf(buf, "%sco#%d:li#%d:%s", |
58 | WWT_TERMCAP, wp->ww_w.nc, wp->ww_w.nr, wwwintermcap); | |
cd9c5720 EW |
59 | (void) setenv("TERMCAP", buf, 1); |
60 | (void) sprintf(buf, "%d", wp->ww_id + 1); | |
61 | (void) setenv("WINDOW_ID", buf, 1); | |
7ecf4dca EW |
62 | return 0; |
63 | bad: | |
64 | wwerrno = WWE_SYS; | |
65 | return -1; | |
aa149fde | 66 | } |