talkd.c (9e522f7a18a64d3b9ea901ed70d0eee78342f0c6) talkd.c (a846453c5ebbf21be4af27ac1e1679a3c00d8103)
1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $Id$
34 */
35
36#ifndef lint
32 */
33
34#ifndef lint
37static char copyright[] =
35static const char copyright[] =
38"@(#) Copyright (c) 1983, 1993\n\
39 The Regents of the University of California. All rights reserved.\n";
40#endif /* not lint */
41
42#ifndef lint
36"@(#) Copyright (c) 1983, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
43static char sccsid[] = "@(#)talkd.c 8.1 (Berkeley) 6/4/93";
42static char sccsid[] = "@(#)talkd.c 8.1 (Berkeley) 6/4/93";
43#endif
44static const char rcsid[] =
45 "$Id$";
44#endif /* not lint */
45
46/*
47 * The top level of the daemon, the format is heavily borrowed
48 * from rwhod.c. Basically: find out who and where you are;
49 * disconnect all descriptors and ttys, and then endless
50 * loop on waiting for and processing requests
51 */
52#include <sys/types.h>
53#include <sys/socket.h>
54#include <sys/param.h>
55#include <protocols/talkd.h>
46#endif /* not lint */
47
48/*
49 * The top level of the daemon, the format is heavily borrowed
50 * from rwhod.c. Basically: find out who and where you are;
51 * disconnect all descriptors and ttys, and then endless
52 * loop on waiting for and processing requests
53 */
54#include <sys/types.h>
55#include <sys/socket.h>
56#include <sys/param.h>
57#include <protocols/talkd.h>
56#include <signal.h>
57#include <syslog.h>
58#include <time.h>
58#include <err.h>
59#include <errno.h>
59#include <errno.h>
60#include <unistd.h>
60#include <paths.h>
61#include <signal.h>
61#include <stdio.h>
62#include <stdlib.h>
63#include <string.h>
62#include <stdio.h>
63#include <stdlib.h>
64#include <string.h>
64#include <paths.h>
65#include <syslog.h>
66#include <time.h>
67#include <unistd.h>
65
66CTL_MSG request;
67CTL_RESPONSE response;
68
69int sockt;
70int debug = 0;
68
69CTL_MSG request;
70CTL_RESPONSE response;
71
72int sockt;
73int debug = 0;
71void timeout();
72long lastmsgtime;
73
74char hostname[MAXHOSTNAMELEN + 1];
75
76#define TIMEOUT 30
77#define MAXIDLE 120
78
74long lastmsgtime;
75
76char hostname[MAXHOSTNAMELEN + 1];
77
78#define TIMEOUT 30
79#define MAXIDLE 120
80
81void process_request __P((CTL_MSG *, CTL_RESPONSE *));
82void timeout();
83
84int
79main(argc, argv)
80 int argc;
81 char *argv[];
82{
83 register CTL_MSG *mp = &request;
84 int cc;
85
85main(argc, argv)
86 int argc;
87 char *argv[];
88{
89 register CTL_MSG *mp = &request;
90 int cc;
91
86 if (getuid()) {
87 fprintf(stderr, "%s: getuid: not super-user\n", argv[0]);
88 exit(1);
89 }
92 if (getuid())
93 errx(1, "getuid: not super-user");
90 openlog("talkd", LOG_PID, LOG_DAEMON);
91 if (gethostname(hostname, sizeof (hostname) - 1) < 0) {
92 syslog(LOG_ERR, "gethostname: %m");
93 _exit(1);
94 }
95 if (chdir(_PATH_DEV) < 0) {
96 syslog(LOG_ERR, "chdir: %s: %m", _PATH_DEV);
97 _exit(1);
98 }
99 if (argc > 1 && strcmp(argv[1], "-d") == 0)
100 debug = 1;
101 signal(SIGALRM, timeout);
102 alarm(TIMEOUT);
103 for (;;) {
94 openlog("talkd", LOG_PID, LOG_DAEMON);
95 if (gethostname(hostname, sizeof (hostname) - 1) < 0) {
96 syslog(LOG_ERR, "gethostname: %m");
97 _exit(1);
98 }
99 if (chdir(_PATH_DEV) < 0) {
100 syslog(LOG_ERR, "chdir: %s: %m", _PATH_DEV);
101 _exit(1);
102 }
103 if (argc > 1 && strcmp(argv[1], "-d") == 0)
104 debug = 1;
105 signal(SIGALRM, timeout);
106 alarm(TIMEOUT);
107 for (;;) {
104 extern int errno;
105
106 cc = recv(0, (char *)mp, sizeof (*mp), 0);
107 if (cc != sizeof (*mp)) {
108 if (cc < 0 && errno != EINTR)
109 syslog(LOG_WARNING, "recv: %m");
110 continue;
111 }
112 lastmsgtime = time(0);
113 process_request(mp, &response);

--- 18 unchanged lines hidden --- 		108 cc = recv(0, (char *)mp, sizeof (*mp), 0);
109 if (cc != sizeof (*mp)) {
110 if (cc < 0 && errno != EINTR)
111 syslog(LOG_WARNING, "recv: %m");
112 continue;
113 }
114 lastmsgtime = time(0);
115 process_request(mp, &response);

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