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