Commit | Line | Data |
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fdd8e0d1 BJ |
1 | static char *sccsid = "@(#)leave.c 4.1 (Berkeley) %G%"; |
2 | #include <stdio.h> | |
3 | /* | |
4 | * leave [hhmm] | |
5 | * | |
6 | * Reminds you when you have to leave. | |
7 | * Leave prompts for input and goes away if you hit return. | |
8 | * It nags you like a mother hen. | |
9 | */ | |
10 | char origlogin[20], thislogin[20]; | |
11 | char *getlogin(); | |
12 | char *whenleave; | |
13 | char *ctime(); | |
14 | char buff[100]; | |
15 | ||
16 | main(argc,argv) | |
17 | char **argv; | |
18 | { | |
19 | long when, tod, now, diff, hours, minutes; | |
20 | int *nv; | |
21 | int atoi(); | |
22 | int *localtime(); | |
23 | ||
24 | if (argc < 2) { | |
25 | printf("When do you have to leave? "); | |
26 | fflush(stdout); | |
27 | buff[read(0,buff,sizeof buff)] = 0; | |
28 | } else { | |
29 | strcpy(buff,argv[1]); | |
30 | } | |
31 | ||
32 | if (buff[0] == '\n') | |
33 | exit(0); | |
34 | if (buff[0] == '+') { | |
35 | diff = atoi(buff+1); | |
36 | doalarm(diff); | |
37 | } | |
38 | if (buff[0] < '0' || buff[0] > '9') { | |
39 | printf("usage: %s [hhmm]\n",argv[0]); | |
40 | exit(1); | |
41 | } | |
42 | strcpy(origlogin,getlogin()); | |
43 | ||
44 | tod = atoi(buff); | |
45 | hours = tod / 100; | |
46 | if (hours > 12) | |
47 | hours -= 12; | |
48 | if (hours == 12) | |
49 | hours = 0; | |
50 | minutes = tod % 100; | |
51 | ||
52 | if (hours < 0 || hours > 12 || minutes < 0 || minutes > 59) { | |
53 | printf("usage: %s [hhmm]\n",argv[0]); | |
54 | exit(1); | |
55 | } | |
56 | ||
57 | setexit(); /* refigure time if killed */ | |
58 | time(&now); | |
59 | nv = localtime(&now); | |
60 | when = 60*hours+minutes; | |
61 | if (nv[2] > 12) nv[2] -= 12; /* do am/pm bit */ | |
62 | now = 60*nv[2] + nv[1]; | |
63 | diff = when - now; | |
64 | while (diff < 0) | |
65 | diff += 12*60; | |
66 | if (diff > 11*60) printf("That time has already passed!\n"); | |
67 | doalarm(diff); | |
68 | exit(0); | |
69 | } | |
70 | ||
71 | ||
72 | doalarm(nmins) | |
73 | long nmins; | |
74 | { | |
75 | char *msg1, *msg2, *msg3, *msg4; | |
76 | register int i; | |
77 | int slp1, slp2, slp3, slp4; | |
78 | int seconds, gseconds; | |
79 | long daytime; | |
80 | ||
81 | seconds = 60 * nmins; | |
82 | if (seconds <= 0) | |
83 | seconds = 1; | |
84 | gseconds = seconds; | |
85 | ||
86 | msg1 = "You have to leave in 5 minutes"; | |
87 | if (seconds <= 60*5) { | |
88 | slp1 = 0; | |
89 | } else { | |
90 | slp1 = seconds - 60*5; | |
91 | seconds = 60*5; | |
92 | } | |
93 | ||
94 | msg2 = "Just one more minute!"; | |
95 | if (seconds <= 60) { | |
96 | slp2 = 0; | |
97 | } else { | |
98 | slp2 = seconds - 60; | |
99 | seconds = 60; | |
100 | } | |
101 | ||
102 | msg3 = "Time to leave!"; | |
103 | slp3 = seconds; | |
104 | ||
105 | msg4 = "You're going to be late!"; | |
106 | slp4 = 60; | |
107 | ||
108 | time(&daytime); | |
109 | daytime += gseconds; | |
110 | whenleave = ctime(&daytime); | |
111 | printf("Alarm set for %s\n",whenleave); | |
112 | if (fork()) | |
113 | exit(0); | |
114 | signal(2,1); | |
115 | signal(3,1); | |
116 | signal(15,1); | |
117 | ||
118 | if (slp1) | |
119 | bother(slp1,msg1); | |
120 | if (slp2) | |
121 | bother(slp2,msg2); | |
122 | bother(slp3,msg3); | |
123 | for (;;) { | |
124 | bother(slp4,msg4); | |
125 | } | |
126 | } | |
127 | ||
128 | bother(slp,msg) | |
129 | int slp; | |
130 | char *msg; | |
131 | { | |
132 | ||
133 | delay(slp); | |
134 | printf("\7\7\7"); | |
135 | printf("%s\n",msg); | |
136 | } | |
137 | ||
138 | /* | |
139 | * delay is like sleep but does it in 100 sec pieces and | |
140 | * knows what zero means. | |
141 | */ | |
142 | delay(secs) int secs; { | |
143 | int n; | |
144 | ||
145 | while(secs>0) { | |
146 | n = 100; | |
147 | secs = secs - 100; | |
148 | if (secs < 0) { | |
149 | n = n + secs; | |
150 | } | |
151 | if (n > 0) | |
152 | sleep(n); | |
153 | strcpy(thislogin,getlogin()); | |
154 | if (strcmp(origlogin, thislogin)) | |
155 | exit(0); | |
156 | } | |
157 | } | |
158 | ||
159 | #ifdef V6 | |
160 | char *getlogin() { | |
161 | #include <utmp.h> | |
162 | ||
163 | static struct utmp ubuf; | |
164 | int ufd; | |
165 | ||
166 | ufd = open("/etc/utmp",0); | |
167 | seek(ufd, ttyn(0)*sizeof(ubuf), 0); | |
168 | read(ufd, &ubuf, sizeof(ubuf)); | |
169 | ubuf.ut_name[sizeof(ubuf.ut_name)] = 0; | |
170 | return(&ubuf.ut_name); | |
171 | } | |
172 | #endif |