/* $OpenBSD: time.c,v 1.13 2002/05/26 09:27:10 deraadt Exp $ */ /* $NetBSD: time.c,v 1.7 1995/06/27 00:34:00 jtc Exp $ */ /* * Copyright (c) 1987, 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1987, 1988, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)time.c 8.1 (Berkeley) 6/6/93"; #endif static char rcsid[] = "$OpenBSD: time.c,v 1.13 2002/05/26 09:27:10 deraadt Exp $"; #endif /* not lint */ #include <sys/param.h> #include <sys/time.h> #include <sys/resource.h> #include <sys/wait.h> #include <sys/sysctl.h> #include <err.h> #include <errno.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> int lflag; int portableflag; __dead void usage(void); int main(argc, argv) int argc; char **argv; { pid_t pid; int ch, status; struct timeval before, after; struct rusage ru; int exitonsig = 0; while ((ch = getopt(argc, argv, "lp")) != -1) { switch(ch) { case 'l': lflag = 1; break; case 'p': portableflag = 1; break; case '?': default: usage(); /* NOTREACHED */ } } argc -= optind; argv += optind; if (argc < 1) usage(); gettimeofday(&before, (struct timezone *)NULL); switch(pid = vfork()) { case -1: /* error */ perror("time"); exit(1); /* NOTREACHED */ case 0: /* child */ execvp(*argv, argv); perror(*argv); _exit((errno == ENOENT) ? 127 : 126); /* NOTREACHED */ } /* parent */ (void)signal(SIGINT, SIG_IGN); (void)signal(SIGQUIT, SIG_IGN); while (wait3(&status, 0, &ru) != pid) ; gettimeofday(&after, (struct timezone *)NULL); if (WIFSIGNALED(status)) exitonsig = WTERMSIG(status); if (!WIFEXITED(status)) fprintf(stderr, "Command terminated abnormally.\n"); timersub(&after, &before, &after); if (portableflag) { fprintf(stderr, "real %9ld.%02ld\n", after.tv_sec, after.tv_usec/10000); fprintf(stderr, "user %9ld.%02ld\n", ru.ru_utime.tv_sec, ru.ru_utime.tv_usec/10000); fprintf(stderr, "sys %9ld.%02ld\n", ru.ru_stime.tv_sec, ru.ru_stime.tv_usec/10000); } else { fprintf(stderr, "%9ld.%02ld real ", after.tv_sec, after.tv_usec/10000); fprintf(stderr, "%9ld.%02ld user ", ru.ru_utime.tv_sec, ru.ru_utime.tv_usec/10000); fprintf(stderr, "%9ld.%02ld sys\n", ru.ru_stime.tv_sec, ru.ru_stime.tv_usec/10000); } if (lflag) { int hz; long ticks; int mib[2]; struct clockinfo clkinfo; size_t size; mib[0] = CTL_KERN; mib[1] = KERN_CLOCKRATE; size = sizeof(clkinfo); if (sysctl(mib, 2, &clkinfo, &size, NULL, 0) < 0) err(1, "sysctl"); hz = clkinfo.hz; ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) + hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000; fprintf(stderr, "%10ld %s\n", ru.ru_maxrss, "maximum resident set size"); fprintf(stderr, "%10ld %s\n", ticks ? ru.ru_ixrss / ticks : 0, "average shared memory size"); fprintf(stderr, "%10ld %s\n", ticks ? ru.ru_idrss / ticks : 0, "average unshared data size"); fprintf(stderr, "%10ld %s\n", ticks ? ru.ru_isrss / ticks : 0, "average unshared stack size"); fprintf(stderr, "%10ld %s\n", ru.ru_minflt, "minor page faults"); fprintf(stderr, "%10ld %s\n", ru.ru_majflt, "major page faults"); fprintf(stderr, "%10ld %s\n", ru.ru_nswap, "swaps"); fprintf(stderr, "%10ld %s\n", ru.ru_inblock, "block input operations"); fprintf(stderr, "%10ld %s\n", ru.ru_oublock, "block output operations"); fprintf(stderr, "%10ld %s\n", ru.ru_msgsnd, "messages sent"); fprintf(stderr, "%10ld %s\n", ru.ru_msgrcv, "messages received"); fprintf(stderr, "%10ld %s\n", ru.ru_nsignals, "signals received"); fprintf(stderr, "%10ld %s\n", ru.ru_nvcsw, "voluntary context switches"); fprintf(stderr, "%10ld %s\n", ru.ru_nivcsw, "involuntary context switches"); } if (exitonsig) { if (signal(exitonsig, SIG_DFL) == SIG_ERR) perror("signal"); else kill(getpid(), exitonsig); } exit(WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE); } __dead void usage() { extern char *__progname; (void)fprintf(stderr, "usage: %s [-lp] command\n", __progname); exit(1); }