Commit | Line | Data |
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22e155fc | 1 | /* |
8326fc5e | 2 | * Copyright (c) 1980, 1988 Regents of the University of California. |
86565271 KB |
3 | * All rights reserved. |
4 | * | |
f15db449 | 5 | * %sccs.include.redist.c% |
22e155fc DF |
6 | */ |
7 | ||
8 | #ifndef lint | |
9 | char copyright[] = | |
8326fc5e | 10 | "@(#) Copyright (c) 1980, 1988 Regents of the University of California.\n\ |
22e155fc | 11 | All rights reserved.\n"; |
86565271 | 12 | #endif /* not lint */ |
22e155fc DF |
13 | |
14 | #ifndef lint | |
b61c5edc | 15 | static char sccsid[] = "@(#)leave.c 5.6 (Berkeley) %G%"; |
86565271 | 16 | #endif /* not lint */ |
22e155fc | 17 | |
8326fc5e KB |
18 | #include <sys/param.h> |
19 | #include <sys/time.h> | |
fdd8e0d1 | 20 | #include <stdio.h> |
86565271 | 21 | #include <ctype.h> |
8326fc5e | 22 | |
fdd8e0d1 | 23 | /* |
cc4f5b4e | 24 | * leave [[+]hhmm] |
fdd8e0d1 BJ |
25 | * |
26 | * Reminds you when you have to leave. | |
27 | * Leave prompts for input and goes away if you hit return. | |
28 | * It nags you like a mother hen. | |
29 | */ | |
cc4f5b4e | 30 | main(argc, argv) |
8326fc5e KB |
31 | int argc; |
32 | char **argv; | |
fdd8e0d1 | 33 | { |
8326fc5e KB |
34 | register u_int secs; |
35 | register int hours, minutes; | |
36 | register char c, *cp; | |
37 | struct tm *t, *localtime(); | |
38 | time_t now, time(); | |
39 | int plusnow; | |
40 | char buf[50]; | |
fdd8e0d1 BJ |
41 | |
42 | if (argc < 2) { | |
8326fc5e KB |
43 | #define MSG1 "When do you have to leave? " |
44 | (void)write(1, MSG1, sizeof(MSG1) - 1); | |
45 | cp = fgets(buf, sizeof(buf), stdin); | |
46 | if (*cp == '\n') | |
47 | exit(0); | |
cc4f5b4e RC |
48 | } else |
49 | cp = argv[1]; | |
8326fc5e | 50 | |
cc4f5b4e | 51 | if (*cp == '+') { |
8326fc5e KB |
52 | plusnow = 1; |
53 | ++cp; | |
54 | } else { | |
55 | plusnow = 0; | |
56 | (void)time(&now); | |
57 | t = localtime(&now); | |
58 | } | |
59 | ||
60 | for (hours = 0; (c = *cp) && c != '\n'; ++cp) { | |
61 | if (!isdigit(c)) | |
cc4f5b4e | 62 | usage(); |
8326fc5e | 63 | hours = hours * 10 + (c - '0'); |
fdd8e0d1 | 64 | } |
8326fc5e KB |
65 | minutes = hours % 100; |
66 | hours /= 100; | |
fdd8e0d1 | 67 | |
8326fc5e | 68 | if (minutes < 0 || minutes > 59) |
cc4f5b4e | 69 | usage(); |
8326fc5e KB |
70 | if (plusnow) |
71 | secs = hours * 60 * 60 + minutes * 60; | |
72 | else { | |
73 | if (hours > 23 || t->tm_hour > hours || | |
74 | t->tm_hour == hours && minutes <= t->tm_min) | |
75 | usage(); | |
76 | secs = (hours - t->tm_hour) * 60 * 60; | |
77 | secs += (minutes - t->tm_min) * 60; | |
cc4f5b4e | 78 | } |
8326fc5e | 79 | doalarm(secs); |
fdd8e0d1 BJ |
80 | exit(0); |
81 | } | |
82 | ||
8326fc5e KB |
83 | doalarm(secs) |
84 | u_int secs; | |
86565271 | 85 | { |
8326fc5e KB |
86 | register int bother; |
87 | time_t daytime, time(); | |
88 | int pid; | |
89 | char *ctime(); | |
90 | ||
91 | if (pid = fork()) { | |
92 | (void)time(&daytime); | |
93 | daytime += secs; | |
94 | printf("Alarm set for %.16s. (pid %d)\n", | |
95 | ctime(&daytime), pid); | |
96 | exit(0); | |
86565271 | 97 | } |
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98 | sleep((u_int)2); /* let parent print set message */ |
99 | ||
100 | /* | |
101 | * if write fails, we've lost the terminal through someone else | |
102 | * causing a vhangup by logging in. | |
103 | */ | |
104 | #define FIVEMIN (5 * 60) | |
105 | #define MSG2 "\07\07You have to leave in 5 minutes.\n" | |
106 | if (secs >= FIVEMIN) { | |
107 | sleep(secs - FIVEMIN); | |
108 | if (write(1, MSG2, sizeof(MSG2) - 1) != sizeof(MSG2) - 1) | |
109 | exit(0); | |
110 | secs = FIVEMIN; | |
fdd8e0d1 BJ |
111 | } |
112 | ||
8326fc5e KB |
113 | #define ONEMIN (60) |
114 | #define MSG3 "\07\07Just one more minute!\n" | |
115 | if (secs >= ONEMIN) { | |
116 | sleep(secs - ONEMIN); | |
117 | if (write(1, MSG3, sizeof(MSG3) - 1) != sizeof(MSG3) - 1) | |
118 | exit(0); | |
fdd8e0d1 BJ |
119 | } |
120 | ||
8326fc5e KB |
121 | #define MSG4 "\07\07Time to leave!\n" |
122 | for (bother = 10; bother--;) { | |
123 | sleep((u_int)ONEMIN); | |
124 | if (write(1, MSG4, sizeof(MSG4) - 1) != sizeof(MSG4) - 1) | |
125 | exit(0); | |
126 | } | |
fdd8e0d1 | 127 | |
8326fc5e KB |
128 | #define MSG5 "\07\07That was the last time I'll tell you. Bye.\n" |
129 | (void)write(1, MSG5, sizeof(MSG5) - 1); | |
cc4f5b4e | 130 | exit(0); |
fdd8e0d1 BJ |
131 | } |
132 | ||
8326fc5e | 133 | usage() |
cc4f5b4e | 134 | { |
8326fc5e KB |
135 | fprintf(stderr, "usage: leave [[+]hhmm]\n"); |
136 | exit(1); | |
fdd8e0d1 | 137 | } |