New w ability: you can list multiple users on the command line and it will
match with all of them, rather than only supporting a single user. PR: 11121 Kinda submitted by: James Howard <howardjp@byzantine.student.umd.edu> Reviewed by: DES
This commit is contained in:
Brian Feldman
parent
d6e5fcdb70
commit
ac3cd5208b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=49177
@ -30,7 +30,7 @@
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)w.1 8.1 (Berkeley) 6/6/93
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.\" $Id: w.1,v 1.9 1998/01/12 00:47:52 steve Exp $
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.\" $Id: w.1,v 1.10 1998/03/22 17:39:08 steve Exp $
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.\"
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.Dd June 6, 1993
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.Dt W 1
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@ -43,7 +43,7 @@
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.Op Fl dhin
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.Op Fl M Ar core
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.Op Fl N Ar system
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.Op Ar user
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.Op Ar user ...
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.Sh DESCRIPTION
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The
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.Nm
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@ -83,9 +83,9 @@ Show network addresses as numbers (normally
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interprets addresses and attempts to display them symbolically).
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.El
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.Pp
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If a
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If one or more
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.Ar user
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name is specified, the output is restricted to that user.
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names are specified, the output is restricted to those users.
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.Sh FILES
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.Bl -tag -width /var/run/utmp -compact
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.It Pa /var/run/utmp
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@ -42,7 +42,7 @@ static const char copyright[] =
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static char sccsid[] = "@(#)w.c 8.4 (Berkeley) 4/16/94";
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#endif
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static const char rcsid[] =
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"$Id: w.c,v 1.34 1999/04/22 23:40:56 ache Exp $";
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"$Id: w.c,v 1.35 1999/07/04 17:26:12 billf Exp $";
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#endif /* not lint */
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/*
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@ -98,7 +98,7 @@ int header = 1; /* true if -h flag: don't print heading */
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int nflag; /* true if -n flag: don't convert addrs */
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int dflag; /* true if -d flag: output debug info */
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int sortidle; /* sort by idle time */
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char *sel_user; /* login of particular user selected */
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char **sel_users; /* login array of particular users selected */
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char domain[MAXHOSTNAMELEN];
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/*
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@ -114,11 +114,12 @@ struct entry {
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struct kinfo_proc *dkp; /* debug option proc list */
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} *ep, *ehead = NULL, **nextp = &ehead;
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static void pr_header __P((time_t *, int));
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static struct stat
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*ttystat __P((char *, int));
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static void usage __P((int));
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static int this_is_uptime __P((const char *s));
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#define debugproc(p) *((struct kinfo_proc **)&(p)->kp_eproc.e_spare[0])
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static void pr_header __P((time_t *, int));
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static struct stat *ttystat __P((char *, int));
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static void usage __P((int));
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static int this_is_uptime __P((const char *s));
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char *fmt_argv __P((char **, char *, int)); /* ../../bin/ps/fmt.c */
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@ -137,7 +138,7 @@ main(argc, argv)
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char *memf, *nlistf, *p, *x;
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char buf[MAXHOSTNAMELEN], errbuf[256];
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(void) setlocale(LC_ALL, "");
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(void)setlocale(LC_ALL, "");
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/* Are we w(1) or uptime(1)? */
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if (this_is_uptime(argv[0]) == 0) {
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@ -200,7 +201,7 @@ main(argc, argv)
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err(1, "%s", _PATH_UTMP);
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if (*argv)
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sel_user = *argv;
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sel_users = argv;
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for (nusers = 0; fread(&utmp, sizeof(utmp), 1, ut);) {
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if (utmp.ut_name[0] == '\0')
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@ -208,14 +209,24 @@ main(argc, argv)
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if (!(stp = ttystat(utmp.ut_line, UT_LINESIZE)))
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continue; /* corrupted record */
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++nusers;
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if (wcmd == 0 || (sel_user &&
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strncmp(utmp.ut_name, sel_user, UT_NAMESIZE) != 0))
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if (wcmd == 0)
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continue;
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if (sel_users) {
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int usermatch;
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char **user;
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usermatch = 0;
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for (user = sel_users; !usermatch && *user; user++)
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if (!strncmp(utmp.ut_name, *user, UT_NAMESIZE))
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usermatch = 1;
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if (!usermatch)
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continue;
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}
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if ((ep = calloc(1, sizeof(struct entry))) == NULL)
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errx(1, "calloc");
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*nextp = ep;
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nextp = &(ep->next);
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memmove(&(ep->utmp), &utmp, sizeof(struct utmp));
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nextp = &ep->next;
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memmove(&ep->utmp, &utmp, sizeof(struct utmp));
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ep->tdev = stp->st_rdev;
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#ifdef CPU_CONSDEV
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/*
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@ -229,7 +240,7 @@ main(argc, argv)
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mib[0] = CTL_MACHDEP;
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mib[1] = CPU_CONSDEV;
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size = sizeof(dev_t);
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(void) sysctl(mib, 2, &ep->tdev, &size, NULL, 0);
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(void)sysctl(mib, 2, &ep->tdev, &size, NULL, 0);
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}
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#endif
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if ((ep->idle = now - stp->st_atime) < 0)
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@ -240,7 +251,7 @@ main(argc, argv)
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if (header || wcmd == 0) {
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pr_header(&now, nusers);
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if (wcmd == 0)
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exit (0);
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exit(0);
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#define HEADER_USER "USER"
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#define HEADER_TTY "TTY"
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@ -285,7 +296,7 @@ main(argc, argv)
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*/
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dkp = ep->dkp;
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ep->dkp = kp;
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*((struct kinfo_proc **)(&kp->kp_eproc.e_spare[0])) = dkp;
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debugproc(kp) = dkp;
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}
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}
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}
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@ -310,8 +321,9 @@ main(argc, argv)
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}
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/* sort by idle time */
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if (sortidle && ehead != NULL) {
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struct entry *from = ehead, *save;
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struct entry *from, *save;
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from = ehead;
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ehead = NULL;
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while (from != NULL) {
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for (nextp = &ehead;
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@ -327,7 +339,7 @@ main(argc, argv)
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if (!nflag) {
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if (gethostname(domain, sizeof(domain) - 1) < 0 ||
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(p = strchr(domain, '.')) == 0)
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(p = strchr(domain, '.')) == NULL)
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domain[0] = '\0';
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else {
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domain[sizeof(domain) - 1] = '\0';
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@ -343,8 +355,7 @@ main(argc, argv)
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p = *host_buf ? host_buf : "-";
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if ((x = strchr(p, ':')) != NULL)
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*x++ = '\0';
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if (!nflag && isdigit(*p) &&
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(long)(l = inet_addr(p)) != -1 &&
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if (!nflag && isdigit(*p) && (l = inet_addr(p)) != -1 &&
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(hp = gethostbyaddr((char *)&l, sizeof(l), AF_INET))) {
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if (domain[0] != '\0') {
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p = hp->h_name;
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@ -371,13 +382,15 @@ main(argc, argv)
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p = buf;
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}
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if (dflag) {
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for (dkp = ep->dkp; dkp != NULL; dkp = *((struct kinfo_proc **)(&dkp->kp_eproc.e_spare[0]))) {
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for (dkp = ep->dkp; dkp != NULL; dkp = debugproc(dkp)) {
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char *ptr;
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ptr = fmt_argv(kvm_getargv(kd, dkp, argwidth),
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dkp->kp_proc.p_comm, MAXCOMLEN);
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dkp->kp_proc.p_comm, MAXCOMLEN);
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if (ptr == NULL)
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ptr = "-";
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(void)printf( "\t\t%-9d %s\n", dkp->kp_proc.p_pid, ptr);
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(void)printf("\t\t%-9d %s\n",
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dkp->kp_proc.p_pid, ptr);
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}
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}
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(void)printf("%-*.*s %-*.*s %-*.*s ",
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@ -408,12 +421,8 @@ pr_header(nowp, nusers)
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/*
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* Print time of day.
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*
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* SCCS forces the string manipulation below, as it replaces
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* %, M, and % in a character string with the file name.
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*/
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(void)strftime(buf, sizeof(buf) - 1,
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__CONCAT("%l:%","M%p"), localtime(nowp));
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(void)strftime(buf, sizeof(buf) - 1, "%l:%M%p", localtime(nowp));
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buf[sizeof(buf) - 1] = '\0';
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(void)printf("%s ", buf);
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@ -440,14 +449,11 @@ pr_header(nowp, nusers)
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if (hrs > 0 && mins > 0)
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(void)printf(" %2d:%02d,", hrs, mins);
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else if (hrs > 0)
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(void)printf(" %d hr%s,",
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hrs, hrs > 1 ? "s" : "");
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(void)printf(" %d hr%s,", hrs, hrs > 1 ? "s" : "");
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else if (mins > 0)
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(void)printf(" %d min%s,",
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mins, mins > 1 ? "s" : "");
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(void)printf(" %d min%s,", mins, mins > 1 ? "s" : "");
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else
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(void)printf(" %d sec%s,",
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secs, secs > 1 ? "s" : "");
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(void)printf(" %d sec%s,", secs, secs > 1 ? "s" : "");
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}
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/* Print number of users logged in to system */
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@ -460,11 +466,8 @@ pr_header(nowp, nusers)
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(void)printf(", no load average information available\n");
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else {
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(void)printf(", load averages:");
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for (i = 0; i < (sizeof(avenrun) / sizeof(avenrun[0])); i++) {
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if (i > 0)
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(void)printf(",");
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(void)printf(" %.2f", avenrun[i]);
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}
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for (i = 0; i < (sizeof(avenrun) / sizeof(avenrun[0])); i++)
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(void)printf("%s %.2f", i > 0 ? "," : "", avenrun[i]);
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(void)printf("\n");
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}
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}
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@ -480,7 +483,7 @@ ttystat(line, sz)
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(void)snprintf(ttybuf, sizeof(ttybuf), "%s%.*s", _PATH_DEV, sz, line);
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if (stat(ttybuf, &sb)) {
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warn("%s", ttybuf);
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return NULL;
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return (NULL);
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}
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return (&sb);
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}
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@ -491,11 +494,10 @@ usage(wcmd)
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{
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if (wcmd)
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(void)fprintf(stderr,
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"usage: w [-dhin] [-M core] [-N system] [user]\n");
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"usage: w [-dhin] [-M core] [-N system] [user ...]\n");
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else
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(void)fprintf(stderr,
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"usage: uptime\n");
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exit (1);
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(void)fprintf(stderr, "usage: uptime\n");
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exit(1);
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}
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static int
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@ -509,7 +511,6 @@ this_is_uptime(s)
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else
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u = s;
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if (strcmp(u, "uptime") == 0)
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return(0);
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return(-1);
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return (0);
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return (-1);
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}
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