projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 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 |