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Add the XSI option -b to show date of the last reboot.

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That required to increase the LINE field to fit the output of -b.
While here, change the row() function to take a const argument.

In collaboration with:	ed
This commit is contained in:
Sergey Kandaurov 2011-10-28 12:47:37 +00:00
parent aea26bc05a
commit 85714224ae
2 changed files with 31 additions and 8 deletions
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6
usr.bin/who/who.1
View File

@ -28,7 +28,7 @@
.\" @(#)who.1 8.2 (Berkeley) 12/30/93
.\" $FreeBSD$
.\"
.Dd May 8, 2002
.Dd Oct 28, 2011
.Dt WHO 1
.Os
.Sh NAME
@ -36,7 +36,7 @@
.Nd display who is on the system
.Sh SYNOPSIS
.Nm
.Op Fl HmqsTu
.Op Fl bHmqsTu
.Op Cm am I
.Op Ar file
.Sh DESCRIPTION
@ -48,6 +48,8 @@ remote hostname if not local.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl b
Write the time and date of the last system reboot.
.It Fl H
Write column headings above the output.
.It Fl m

33
usr.bin/who/who.c
View File

@ -48,14 +48,16 @@ __FBSDID("$FreeBSD$");
#include <utmpx.h>
static void heading(void);
static void boottime(void);
static void process_utmp(void);
static void quick(void);
static void row(struct utmpx *);
static void row(const struct utmpx *);
static int ttywidth(void);
static void usage(void);
static void whoami(void);
static int Hflag; /* Write column headings */
static int bflag; /* Show date of the last reboot */
static int mflag; /* Show info about current terminal */
static int qflag; /* "Quick" mode */
static int sflag; /* Show name, line, time */
@ -69,7 +71,7 @@ main(int argc, char *argv[])
setlocale(LC_TIME, "");
while ((ch = getopt(argc, argv, "HTmqsu")) != -1) {
while ((ch = getopt(argc, argv, "HTbmqsu")) != -1) {
switch (ch) {
case 'H': /* Write column headings */
Hflag = 1;
@ -77,6 +79,9 @@ main(int argc, char *argv[])
case 'T': /* Show terminal state */
Tflag = 1;
break;
case 'b': /* Show date of the last reboot */
bflag = 1;
break;
case 'm': /* Show info about current terminal */
mflag = 1;
break;
@ -121,6 +126,8 @@ main(int argc, char *argv[])
heading();
if (mflag)
whoami();
else if (bflag)
boottime();
else
process_utmp();
}
@ -134,7 +141,7 @@ static void
usage(void)
{
fprintf(stderr, "usage: who [-HmqsTu] [am I] [file]\n");
fprintf(stderr, "usage: who [-bHmqsTu] [am I] [file]\n");
exit(1);
}
@ -145,14 +152,14 @@ heading(void)
printf("%-16s ", "NAME");
if (Tflag)
printf("S ");
printf("%-8s %-12s ", "LINE", "TIME");
printf("%-12s %-12s ", "LINE", "TIME");
if (uflag)
printf("IDLE ");
printf("%-16s\n", "FROM");
}
static void
row(struct utmpx *ut)
row(const struct utmpx *ut)
{
char buf[80], tty[PATH_MAX];
struct stat sb;
@ -178,7 +185,10 @@ row(struct utmpx *ut)
printf("%-16s ", ut->ut_user);
if (Tflag)
printf("%c ", state);
printf("%-8s ", ut->ut_line);
if (ut->ut_type == BOOT_TIME)
printf("%-12s ", "system boot");
else
printf("%-12s ", ut->ut_line);
t = ut->ut_tv.tv_sec;
tm = localtime(&t);
strftime(buf, sizeof(buf), d_first ? "%e %b %R" : "%b %e %R", tm);
@ -224,6 +234,17 @@ process_utmp(void)
}
}
static void
boottime(void)
{
struct utmpx u1, *u2;
u1.ut_type = BOOT_TIME;
if ((u2 = getutxid(&u1)) == NULL)
return;
row(u2);
}
static void
quick(void)
{