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[unix-history] / usr / src / sbin / shutdown / shutdown.c
diff --git a/usr/src/sbin/shutdown/shutdown.c b/usr/src/sbin/shutdown/shutdown.c
index 9d4e428..f9e7014 100644 (file)
--- a/usr/src/sbin/shutdown/shutdown.c
+++ b/usr/src/sbin/shutdown/shutdown.c
@@ -1,4 +1,4 @@
-/*     @(#)shutdown.c  4.2 (Berkeley/Melbourne) 81/02/28       */
+static char *sccsid = "@(#)shutdown.c  4.11 (Berkeley) 82/02/01";
 
 #include <stdio.h>
 #include <ctype.h>
 
 #include <stdio.h>
 #include <ctype.h>
@@ -6,6 +6,7 @@
 #include <utmp.h>
 #include <time.h>
 #include <sys/types.h>
 #include <utmp.h>
 #include <time.h>
 #include <sys/types.h>
+#include <whoami.h>
 /*
  *     /etc/shutdown when [messages]
  *
 /*
  *     /etc/shutdown when [messages]
  *
@@ -19,6 +20,7 @@
  *             Peter Lamb, Melbourne, 1980
  *             William Joy, Berkeley, 1981
  *             Michael Toy, Berkeley, 1981
  *             Peter Lamb, Melbourne, 1980
  *             William Joy, Berkeley, 1981
  *             Michael Toy, Berkeley, 1981
+ *             Dave Presotto, Berkeley, 1981
  */
 #ifdef DEBUG
 #define LOGFILE "shutdown.log"
  */
 #ifdef DEBUG
 #define LOGFILE "shutdown.log"
@@ -31,8 +33,9 @@
 #define        HOURS   *3600
 #define MINUTES        *60
 #define SECONDS
 #define        HOURS   *3600
 #define MINUTES        *60
 #define SECONDS
-#define NLOG           20              /* no of lines possible for message */
+#define NLOG           20              /* no of args possible for message */
 #define        NOLOGTIME       5 MINUTES
 #define        NOLOGTIME       5 MINUTES
+#define IGNOREUSER     "sleeper"
 
 int    do_nothing();
 time_t getsdt();
 
 int    do_nothing();
 time_t getsdt();
@@ -70,6 +73,7 @@ struct interval {
        10 MINUTES,     5 MINUTES,
        5 MINUTES,      3 MINUTES,
        2 MINUTES,      30 SECONDS,
        10 MINUTES,     5 MINUTES,
        5 MINUTES,      3 MINUTES,
        2 MINUTES,      30 SECONDS,
+       40 SECONDS,     10 SECONDS,
        0 SECONDS,      0 SECONDS
 };
 char *shutter, *getlogin();
        0 SECONDS,      0 SECONDS
 };
 char *shutter, *getlogin();
@@ -105,10 +109,14 @@ main(argc,argv)
                argc--, argv++;
        }
        if (argc < 1) {
                argc--, argv++;
        }
        if (argc < 1) {
-               printf("Usage: %s [-krd] shutdowntime [nologmessage]\n",
+               printf("Usage: %s [ -krh ] shutdowntime [ message ]\n",
                    argv[0]);
                finish();
        }
                    argv[0]);
                finish();
        }
+       if (geteuid()) {
+               fprintf(stderr, "NOT super-user\n");
+               finish();
+       }
        sdt = getsdt(argv[0]);
        argc--, argv++;
        i = 0;
        sdt = getsdt(argv[0]);
        argc--, argv++;
        i = 0;
@@ -133,6 +141,7 @@ main(argc,argv)
        signal(SIGTERM, finish);
        signal(SIGALRM, do_nothing);
        nice(-20);
        signal(SIGTERM, finish);
        signal(SIGALRM, do_nothing);
        nice(-20);
+       fflush(stdout);
 #ifndef DEBUG
        if (i = fork()) {
                printf("[pid %d]\n", i);
 #ifndef DEBUG
        if (i = fork()) {
                printf("[pid %d]\n", i);
@@ -153,7 +162,8 @@ main(argc,argv)
                ufd = open("/etc/utmp",0);
                nowtime = time((long *) 0);
                while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
                ufd = open("/etc/utmp",0);
                nowtime = time((long *) 0);
                while (read(ufd,&utmp,sizeof utmp)==sizeof utmp)
-               if (utmp.ut_name[0]) {
+               if (utmp.ut_name[0] &&
+                   strncmp(utmp.ut_name, IGNOREUSER, sizeof(utmp.ut_name))) {
                        strcpy(term, tpath);
                        strncat(term, utmp.ut_line, sizeof utmp.ut_line);
                        alarm(3);
                        strcpy(term, tpath);
                        strncat(term, utmp.ut_line, sizeof utmp.ut_line);
                        alarm(3);
@@ -265,17 +275,28 @@ warn(term, sdt, nowtime)
        long sdt, nowtime;
 {
        char *ts;
        long sdt, nowtime;
 {
        char *ts;
+       register delay = sdt - nowtime;
+
+       if (delay > 8)
+               while (delay % 5)
+                       delay++;
 
 
-       fprintf(term, "\007\007*** System shutdown message from %s ***\n", shutter);
+       if (shutter)
+               fprintf(term,
+                   "\007\007*** System shutdown message from %s!%s ***\n",
+                   sysname,shutter);
+       else
+               fprintf(term,
+                   "\007\007*** System shutdown message ***\n");
        ts = ctime(&sdt);
        ts = ctime(&sdt);
-       if (sdt - nowtime > 10 MINUTES)
+       if (delay> 10 MINUTES)
                fprintf(term, "System going down at %5.5s\n", ts+11);
                fprintf(term, "System going down at %5.5s\n", ts+11);
-       else if ( sdt - nowtime > 60 SECONDS ) {
+       else if ( delay > 60 SECONDS ) {
                fprintf(term, "System going down in %d minute%s\n",
                fprintf(term, "System going down in %d minute%s\n",
-               (sdt-nowtime+30)/60, (sdt-nowtime+30)/60 != 1 ? "s" : "");
-       } else if ( sdt - nowtime > 0 ) {
+               (delay+30)/60, (delay+30)/60 != 1 ? "s" : "");
+       } else if ( delay > 0 ) {
                fprintf(term, "System going down in %d second%s\n",
                fprintf(term, "System going down in %d second%s\n",
-               sdt-nowtime, sdt-nowtime != 1 ? "s" : "");
+               delay, delay != 1 ? "s" : "");
        } else
                fprintf(term, "System going down IMMEDIATELY\n");
 }
        } else
                fprintf(term, "System going down IMMEDIATELY\n");
 }
@@ -288,8 +309,10 @@ nolog(sdt)
 
        if ((nologf = fopen(nologin, "w")) != NULL) {
                fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
 
        if ((nologf = fopen(nologin, "w")) != NULL) {
                fprintf(nologf, nolog1, (ctime(&sdt)) + 11);
+               putc('\t', nologf);
                for (mess = nolog2; *mess; mess++)
                for (mess = nolog2; *mess; mess++)
-                       fprintf(nologf, "\t%s\n", *mess);
+                       fprintf(nologf, " %s", *mess);
+               putc('\n', nologf);
                fclose(nologf);
        }
 }
                fclose(nologf);
        }
 }
@@ -311,22 +334,34 @@ do_nothing()
  * make an entry in the shutdown log
  */
 
  * make an entry in the shutdown log
  */
 
-log_entry(sdt)
-time_t sdt;
+char *days[] = {
+       "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+};
+
+char *months[] = {
+       "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
+       "Oct", "Nov", "Dec"
+};
+
+log_entry(now)
+time_t now;
 {
 {
-       FILE *logf;
-       char **mess;
+       register FILE *fp;
+       register char **mess;
+       struct tm *tm, *localtime();
 
 
-       if ((logf = fopen(LOGFILE, "a")) == NULL)
-       {
-               fprintf(stderr, "*** Can't write on log file ***\n");
+       tm = localtime(&now);
+       fp = fopen(LOGFILE, "a");
+       if (fp==0)
                return;
                return;
-       }
-       fseek(logf, 0L, 2);
-       fprintf(logf, "Shutdown by %s at %s",
-                       shutter, ctime(&sdt));
+       fseek(fp, 0L, 2);
+       fprintf(fp, "%02d:%02d  %s %s %2d, %4d.  Shutdown:", tm->tm_hour,
+               tm->tm_min, days[tm->tm_wday], months[tm->tm_mon],
+               tm->tm_mday, tm->tm_year + 1900);
        for (mess = nolog2; *mess; mess++)
        for (mess = nolog2; *mess; mess++)
-               fprintf(logf, "\t%s\n", *mess);
-       fputc('\n', logf);
-       fclose(logf);
+               fprintf(fp, " %s", *mess);
+       if (shutter)
+               fprintf(fp, " (by %s!%s)", sysname,shutter);
+       fputc('\n', fp);
+       fclose(fp);
 }
 }
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.