Commit | Line | Data |
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c018628f | 1 | /* |
61dbfbf1 KB |
2 | * Copyright (c) 1980, 1986 The Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
70ab3c27 | 5 | * %sccs.include.redist.c% |
c018628f DF |
6 | */ |
7 | ||
8 | #ifndef lint | |
9 | char copyright[] = | |
61dbfbf1 | 10 | "@(#) Copyright (c) 1980, 1986 The Regents of the University of California.\n\ |
c018628f | 11 | All rights reserved.\n"; |
61dbfbf1 | 12 | #endif /* not lint */ |
c018628f | 13 | |
37c640e2 | 14 | #ifndef lint |
e0060ef1 | 15 | static char sccsid[] = "@(#)reboot.c 5.11 (Berkeley) %G%"; |
61dbfbf1 | 16 | #endif /* not lint */ |
37c640e2 | 17 | |
cf5fda66 BJ |
18 | /* |
19 | * Reboot | |
20 | */ | |
3111ba40 | 21 | #include <sys/types.h> |
ce4fd43b | 22 | #include <sys/time.h> |
bd699e5d | 23 | #include <sys/syslog.h> |
77b19d4d | 24 | #include <sys/syscall.h> |
07beee98 KB |
25 | #include <sys/reboot.h> |
26 | #include <sys/signal.h> | |
27 | #include <pwd.h> | |
28 | #include <stdio.h> | |
29 | #include <errno.h> | |
cf5fda66 BJ |
30 | |
31 | main(argc, argv) | |
32 | int argc; | |
33 | char **argv; | |
34 | { | |
35 | int howto; | |
36 | register char *argp; | |
fe6cb666 BJ |
37 | register i; |
38 | register ok = 0; | |
39 | register qflag = 0; | |
b0af3d20 | 40 | int needlog = 1; |
bd699e5d | 41 | char *user, *getlogin(); |
f0d98f59 | 42 | struct passwd *pw; |
cf5fda66 | 43 | |
f5a538b6 | 44 | openlog("reboot", 0, LOG_AUTH); |
cf5fda66 BJ |
45 | argc--, argv++; |
46 | howto = 0; | |
47 | while (argc > 0) { | |
fe6cb666 BJ |
48 | if (!strcmp(*argv, "-q")) |
49 | qflag++; | |
cf5fda66 BJ |
50 | else if (!strcmp(*argv, "-n")) |
51 | howto |= RB_NOSYNC; | |
b0af3d20 MK |
52 | else if (!strcmp(*argv, "-l")) |
53 | needlog = 0; | |
cf5fda66 BJ |
54 | else { |
55 | fprintf(stderr, | |
fe6cb666 | 56 | "usage: reboot [ -n ][ -q ]\n"); |
cf5fda66 BJ |
57 | exit(1); |
58 | } | |
59 | argc--, argv++; | |
60 | } | |
fe6cb666 | 61 | |
b0af3d20 MK |
62 | if (needlog) { |
63 | user = getlogin(); | |
64 | if (user == (char *)0 && (pw = getpwuid(getuid()))) | |
65 | user = pw->pw_name; | |
66 | if (user == (char *)0) | |
67 | user = "root"; | |
68 | syslog(LOG_CRIT, "rebooted by %s", user); | |
69 | } | |
bd699e5d | 70 | |
7c280ab6 | 71 | signal(SIGHUP, SIG_IGN); /* for remote connections */ |
fe6cb666 BJ |
72 | if (kill(1, SIGTSTP) == -1) { |
73 | fprintf(stderr, "reboot: can't idle init\n"); | |
74 | exit(1); | |
75 | } | |
bd699e5d | 76 | sleep(1); |
b0af3d20 MK |
77 | (void) kill(-1, SIGTERM); /* one chance to catch it */ |
78 | sleep(5); | |
fe6cb666 BJ |
79 | |
80 | if (!qflag) for (i = 1; ; i++) { | |
81 | if (kill(-1, SIGKILL) == -1) { | |
82 | extern int errno; | |
83 | ||
84 | if (errno == ESRCH) | |
85 | break; | |
86 | ||
87 | perror("reboot: kill"); | |
88 | kill(1, SIGHUP); | |
89 | exit(1); | |
90 | } | |
91 | if (i > 5) { | |
bd699e5d MK |
92 | fprintf(stderr, |
93 | "CAUTION: some process(es) wouldn't die\n"); | |
fe6cb666 BJ |
94 | break; |
95 | } | |
96 | setalarm(2 * i); | |
97 | pause(); | |
98 | } | |
99 | ||
bd699e5d | 100 | if (!qflag && (howto & RB_NOSYNC) == 0) { |
ffaf5d37 | 101 | logwtmp("~", "shutdown", ""); |
bd699e5d | 102 | sync(); |
fe6cb666 BJ |
103 | setalarm(5); |
104 | pause(); | |
105 | } | |
77b19d4d | 106 | syscall(SYS_reboot, howto); |
cf5fda66 | 107 | perror("reboot"); |
fe6cb666 BJ |
108 | kill(1, SIGHUP); |
109 | exit(1); | |
110 | } | |
111 | ||
112 | dingdong() | |
113 | { | |
114 | /* RRRIIINNNGGG RRRIIINNNGGG */ | |
115 | } | |
116 | ||
117 | setalarm(n) | |
f0d98f59 | 118 | int n; |
fe6cb666 BJ |
119 | { |
120 | signal(SIGALRM, dingdong); | |
121 | alarm(n); | |
122 | } |