Commit | Line | Data |
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22e155fc DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | char copyright[] = | |
9 | "@(#) Copyright (c) 1980 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
13 | #ifndef lint | |
14 | static char sccsid[] = "@(#)leave.c 5.1 (Berkeley) %G%"; | |
15 | #endif not lint | |
16 | ||
fdd8e0d1 | 17 | #include <stdio.h> |
18a5872f | 18 | #include <signal.h> |
fdd8e0d1 | 19 | /* |
cc4f5b4e | 20 | * leave [[+]hhmm] |
fdd8e0d1 BJ |
21 | * |
22 | * Reminds you when you have to leave. | |
23 | * Leave prompts for input and goes away if you hit return. | |
24 | * It nags you like a mother hen. | |
25 | */ | |
cc4f5b4e | 26 | char origlogin[20]; |
fdd8e0d1 BJ |
27 | char *getlogin(); |
28 | char *whenleave; | |
29 | char *ctime(); | |
30 | char buff[100]; | |
31 | ||
cc4f5b4e | 32 | main(argc, argv) |
fdd8e0d1 BJ |
33 | char **argv; |
34 | { | |
35 | long when, tod, now, diff, hours, minutes; | |
cc4f5b4e | 36 | char *cp; |
fdd8e0d1 BJ |
37 | int *nv; |
38 | int atoi(); | |
39 | int *localtime(); | |
40 | ||
cc4f5b4e | 41 | strcpy(origlogin, getlogin()); |
fdd8e0d1 BJ |
42 | if (argc < 2) { |
43 | printf("When do you have to leave? "); | |
44 | fflush(stdout); | |
cc4f5b4e RC |
45 | buff[read(0, buff, sizeof buff)] = 0; |
46 | cp = buff; | |
47 | } else | |
48 | cp = argv[1]; | |
49 | if (*cp == '\n') | |
fdd8e0d1 | 50 | exit(0); |
cc4f5b4e RC |
51 | if (*cp == '+') { |
52 | cp++; | |
53 | if (*cp < '0' || *cp > '9') | |
54 | usage(); | |
55 | tod = atoi(cp); | |
56 | hours = tod / 100; | |
57 | minutes = tod % 100; | |
58 | if (minutes < 0 || minutes > 59) | |
59 | usage(); | |
60 | diff = 60*hours+minutes; | |
fdd8e0d1 | 61 | doalarm(diff); |
cc4f5b4e | 62 | exit(0); |
fdd8e0d1 | 63 | } |
cc4f5b4e RC |
64 | if (*cp < '0' || *cp > '9') |
65 | usage(); | |
66 | tod = atoi(cp); | |
fdd8e0d1 BJ |
67 | hours = tod / 100; |
68 | if (hours > 12) | |
69 | hours -= 12; | |
70 | if (hours == 12) | |
71 | hours = 0; | |
72 | minutes = tod % 100; | |
73 | ||
cc4f5b4e RC |
74 | if (hours < 0 || hours > 12 || minutes < 0 || minutes > 59) |
75 | usage(); | |
fdd8e0d1 | 76 | |
fdd8e0d1 BJ |
77 | time(&now); |
78 | nv = localtime(&now); | |
79 | when = 60*hours+minutes; | |
cc4f5b4e RC |
80 | if (nv[2] > 12) |
81 | nv[2] -= 12; /* do am/pm bit */ | |
fdd8e0d1 BJ |
82 | now = 60*nv[2] + nv[1]; |
83 | diff = when - now; | |
84 | while (diff < 0) | |
85 | diff += 12*60; | |
cc4f5b4e RC |
86 | if (diff > 11*60) { |
87 | printf("That time has already passed!\n"); | |
88 | exit(1); | |
89 | } | |
fdd8e0d1 BJ |
90 | doalarm(diff); |
91 | exit(0); | |
92 | } | |
93 | ||
cc4f5b4e RC |
94 | usage() |
95 | { | |
96 | printf("usage: leave [[+]hhmm]\n"); | |
97 | exit(1); | |
98 | } | |
fdd8e0d1 BJ |
99 | |
100 | doalarm(nmins) | |
101 | long nmins; | |
102 | { | |
103 | char *msg1, *msg2, *msg3, *msg4; | |
104 | register int i; | |
105 | int slp1, slp2, slp3, slp4; | |
106 | int seconds, gseconds; | |
107 | long daytime; | |
108 | ||
109 | seconds = 60 * nmins; | |
110 | if (seconds <= 0) | |
111 | seconds = 1; | |
112 | gseconds = seconds; | |
113 | ||
114 | msg1 = "You have to leave in 5 minutes"; | |
115 | if (seconds <= 60*5) { | |
116 | slp1 = 0; | |
117 | } else { | |
118 | slp1 = seconds - 60*5; | |
119 | seconds = 60*5; | |
120 | } | |
121 | ||
122 | msg2 = "Just one more minute!"; | |
123 | if (seconds <= 60) { | |
124 | slp2 = 0; | |
125 | } else { | |
126 | slp2 = seconds - 60; | |
127 | seconds = 60; | |
128 | } | |
129 | ||
130 | msg3 = "Time to leave!"; | |
131 | slp3 = seconds; | |
132 | ||
133 | msg4 = "You're going to be late!"; | |
134 | slp4 = 60; | |
135 | ||
136 | time(&daytime); | |
137 | daytime += gseconds; | |
138 | whenleave = ctime(&daytime); | |
cc4f5b4e | 139 | printf("Alarm set for %s", whenleave); |
fdd8e0d1 BJ |
140 | if (fork()) |
141 | exit(0); | |
18a5872f EW |
142 | signal(SIGINT, SIG_IGN); |
143 | signal(SIGQUIT, SIG_IGN); | |
144 | signal(SIGTERM, SIG_IGN); | |
145 | signal(SIGTTOU, SIG_IGN); | |
fdd8e0d1 BJ |
146 | |
147 | if (slp1) | |
cc4f5b4e | 148 | bother(slp1, msg1); |
fdd8e0d1 | 149 | if (slp2) |
cc4f5b4e RC |
150 | bother(slp2, msg2); |
151 | bother(slp3, msg3); | |
152 | for (i = 0; i < 10; i++) | |
153 | bother(slp4, msg4); | |
154 | printf("That was the last time I'll tell you. Bye.\n"); | |
155 | exit(0); | |
fdd8e0d1 BJ |
156 | } |
157 | ||
cc4f5b4e | 158 | bother(slp, msg) |
fdd8e0d1 BJ |
159 | int slp; |
160 | char *msg; | |
161 | { | |
162 | ||
163 | delay(slp); | |
cc4f5b4e | 164 | printf("\7\7\7%s\n", msg); |
fdd8e0d1 BJ |
165 | } |
166 | ||
167 | /* | |
168 | * delay is like sleep but does it in 100 sec pieces and | |
169 | * knows what zero means. | |
170 | */ | |
cc4f5b4e RC |
171 | delay(secs) |
172 | int secs; | |
173 | { | |
fdd8e0d1 BJ |
174 | int n; |
175 | ||
cc4f5b4e | 176 | while (secs > 0) { |
fdd8e0d1 | 177 | n = 100; |
cc4f5b4e RC |
178 | if (secs < n) |
179 | n = secs; | |
180 | secs -= n; | |
fdd8e0d1 BJ |
181 | if (n > 0) |
182 | sleep(n); | |
cc4f5b4e | 183 | if (strcmp(origlogin, getlogin())) |
fdd8e0d1 BJ |
184 | exit(0); |
185 | } | |
186 | } | |
187 | ||
188 | #ifdef V6 | |
189 | char *getlogin() { | |
190 | #include <utmp.h> | |
191 | ||
192 | static struct utmp ubuf; | |
193 | int ufd; | |
194 | ||
195 | ufd = open("/etc/utmp",0); | |
196 | seek(ufd, ttyn(0)*sizeof(ubuf), 0); | |
197 | read(ufd, &ubuf, sizeof(ubuf)); | |
198 | ubuf.ut_name[sizeof(ubuf.ut_name)] = 0; | |
199 | return(&ubuf.ut_name); | |
200 | } | |
201 | #endif |