date and time created 80/10/01 17:28:56 by bill

SCCS-vsn: usr.bin/time/time.c 4.1

diff --git a/usr/src/usr.bin/time/time.c b/usr/src/usr.bin/time/time.c
new file mode 100644 (file)
index 0000000..147cf55
--- /dev/null
+++ b/usr/src/usr.bin/time/time.c
@@ -0,0 +1,81 @@
+static char *sccsid = "@(#)time.c      4.1 (Berkeley) %G%";
+/* time command */
+
+#include <stdio.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/times.h>
+
+extern int errno;
+extern char *sys_errlist[];
+
+main(argc, argv)
+char **argv;
+{
+       struct tms buffer, obuffer;
+       int status;
+       register p;
+       time_t before, after;
+
+       if(argc<=1)
+               exit(0);
+       time(&before);
+       p = fork();
+       if(p == -1) {
+               fprintf(stderr, "Try again.\n");
+               exit(1);
+       }
+       if(p == 0) {
+               execvp(argv[1], &argv[1]);
+               fprintf(stderr, "%s: %s\n", argv[1], sys_errlist[errno]);
+               exit(1);
+       }
+       signal(SIGINT, SIG_IGN);
+       signal(SIGQUIT, SIG_IGN);
+       times(&obuffer);
+       while(wait(&status) != p)
+               times(&obuffer);
+       time(&after);
+       if((status&0377) != 0)
+               fprintf(stderr,"Command terminated abnormally.\n");
+       times(&buffer);
+       fprintf(stderr,"\n");
+       printt("real", (after-before) * 60);
+       printt("user", buffer.tms_cutime - obuffer.tms_cutime);
+       printt("sys ", buffer.tms_cstime - obuffer.tms_cstime);
+       exit(status>>8);
+}
+
+char quant[] = { 6, 10, 10, 6, 10, 6, 10, 10, 10 };
+char *pad  = "000      ";
+char *sep  = "\0\0.\0:\0:\0\0";
+char *nsep = "\0\0.\0 \0 \0\0";
+
+printt(s, a)
+char *s;
+long a;
+{
+       char digit[9];
+       register i;
+       char c;
+       int nonzero;
+
+       for(i=0; i<9; i++) {
+               digit[i] = a % quant[i];
+               a /= quant[i];
+       }
+       fprintf(stderr,s);
+       nonzero = 0;
+       while(--i>0) {
+               c = digit[i]!=0 ? digit[i]+'0':
+                   nonzero ? '0':
+                   pad[i];
+               if (c)
+               fprintf(stderr,"%c",c);
+               nonzero |= digit[i];
+               c = nonzero?sep[i]:nsep[i];
+               if (c)
+               fprintf(stderr,"%c",c);
+       }
+       fprintf(stderr,"\n");
+}