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(print_uptime) [UPTIME]: New function. From Kaveh Ghazi.

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This commit is contained in:
Jim Meyering
1996-04-10 04:57:09 +00:00
parent ac22df9290
commit 737ea4d4f9
1 changed files with 81 additions and 4 deletions
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src/who-users.c
+81 -4
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@@ -1,4 +1,4 @@
/* GNU's users/who.
/* GNU's uptime/users/who.
Copyright (C) 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
@@ -80,7 +80,11 @@
#ifdef USERS
#define COMMAND_NAME "users"
#else
error You must define one of WHO and USERS.
#ifdef UPTIME
#define COMMAND_NAME "uptime"
#else
error You must define one of WHO, UPTIME or USERS.
#endif /* UPTIME */
#endif /* USERS */
#endif /* WHO */
@@ -133,6 +137,75 @@ static struct option const longopts[] =
static STRUCT_UTMP *utmp_contents;
#ifdef UPTIME
static void
print_uptime (int n)
{
register STRUCT_UTMP *this = utmp_contents;
register int entries = 0;
time_t boot_time=0,time_now,uptime,updays,uphours,upmins;
struct tm *tmn;
double avg[3];
int loads;
/* Loop through all the utmp entries we just read and count up the valid
ones, also in the process possibly gleaning boottime. */
while (n--)
{
if (this->ut_name[0]
#ifdef USER_PROCESS
&& this->ut_type == USER_PROCESS
#endif
)
{
entries++;
}
/* If BOOT_MSG is defined, we can get boottime from utmp. This avoids
possibly needing special privs to read /dev/kmem. */
#ifdef BOOT_MSG
#ifdef HAVE_UTMPX_H
if (!strcmp (this->ut_line, BOOT_MSG)) boot_time = this->ut_tv.tv_sec;
#else
if (!strcmp (this->ut_line, BOOT_MSG)) boot_time = this->ut_time;
#endif
#endif /* BOOT_MSG */
this++;
}
if (boot_time == 0)
error (1, errno, "couldn't get boot time");
time_now = time (0);
uptime = time_now - boot_time;
updays = uptime / 86400;
uphours = (uptime - (updays * 86400)) / 3600;
upmins = (uptime - (updays * 86400) - (uphours*3600)) / 60;
tmn = localtime (&time_now);
printf (" %2d:%02d%s up ", ((tmn->tm_hour % 12) == 0
? 12 : tmn->tm_hour % 12),
tmn->tm_min, (tmn->tm_hour < 12 ? "am" : "pm"));
if (updays>0)
printf ("%d %s,", updays, (updays == 1 ? "days" : "day"));
printf (" %2d:%02d, %d %s", uphours, upmins, entries,
(entries == 1) ? "user" : "users");
loads = getloadavg (avg, 3);
if (loads == -1)
putchar ('\n');
else
{
if (loads > 0)
printf (", load average: %.2f", avg[0]);
if (loads > 1)
printf (", %.2f", avg[1]);
if (loads > 2)
printf (", %.2f", avg[2]);
if (loads > 0)
putchar ('\n');
}
}
#endif /* UPTIME */
#if defined (WHO) || defined (USERS)
/* Copy UT->ut_name into storage obtained from malloc. Then remove any
@@ -451,6 +524,10 @@ who (char *filename)
#else
#ifdef USERS
list_entries_users (users);
#else
#ifdef UPTIME
print_uptime (users);
#endif /* UPTIME */
#endif /* USERS */
#endif /* WHO */
}
@@ -542,7 +619,7 @@ If ARG1 ARG2 given, -m presumed: `am i' or `mom likes' are usual.\n\
}
#endif /* WHO */
#ifdef USERS
#if defined(USERS) || defined(UPTIME)
static void
usage (int status)
{
@@ -561,7 +638,7 @@ If FILE not given, uses /etc/utmp. /etc/wtmp as FILE is common.\n\
}
exit (status);
}
#endif /* USERS */
#endif /* USERS || UPTIME */
void
main (int argc, char **argv)