7926b98949
Signed-off-by: Tito Ragusa <farmatito@tiscali.it> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*----------------------------------------------------------------------
|
|
* Mini who is used to display user name, login time,
|
|
* idle time and host name.
|
|
*
|
|
* Author: Da Chen <dchen@ayrnetworks.com>
|
|
*
|
|
* This is a free document; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation:
|
|
* http://www.gnu.org/copyleft/gpl.html
|
|
*
|
|
* Copyright (c) 2002 AYR Networks, Inc.
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
/* BB_AUDIT SUSv3 _NOT_ compliant -- missing options -b, -d, -l, -m, -p, -q, -r, -s, -t, -T, -u; Missing argument 'file'. */
|
|
|
|
//config:config WHO
|
|
//config: bool "who"
|
|
//config: default y
|
|
//config: depends on FEATURE_UTMP
|
|
//config: help
|
|
//config: who is used to show who is logged on.
|
|
|
|
//config:config USERS
|
|
//config: bool "users"
|
|
//config: default y
|
|
//config: depends on FEATURE_UTMP
|
|
//config: help
|
|
//config: Print users currently logged on.
|
|
|
|
//applet:IF_USERS(APPLET_ODDNAME(users, who, BB_DIR_USR_BIN, BB_SUID_DROP, users))
|
|
//applet:IF_WHO( APPLET( who, BB_DIR_USR_BIN, BB_SUID_DROP))
|
|
|
|
//kbuild:lib-$(CONFIG_USERS) += who.o
|
|
//kbuild:lib-$(CONFIG_WHO) += who.o
|
|
|
|
//usage:#define users_trivial_usage
|
|
//usage: ""
|
|
//usage:#define users_full_usage "\n\n"
|
|
//usage: "Print the users currently logged on"
|
|
|
|
//usage:#define who_trivial_usage
|
|
//usage: "[-a]"
|
|
//usage:#define who_full_usage "\n\n"
|
|
//usage: "Show who is logged on\n"
|
|
//usage: "\n -a Show all"
|
|
|
|
#include "libbb.h"
|
|
|
|
static void idle_string(char *str6, time_t t)
|
|
{
|
|
t = time(NULL) - t;
|
|
|
|
/*if (t < 60) {
|
|
str6[0] = '.';
|
|
str6[1] = '\0';
|
|
return;
|
|
}*/
|
|
if (t >= 0 && t < (24 * 60 * 60)) {
|
|
sprintf(str6, "%02d:%02d",
|
|
(int) (t / (60 * 60)),
|
|
(int) ((t % (60 * 60)) / 60));
|
|
return;
|
|
}
|
|
strcpy(str6, "old");
|
|
}
|
|
|
|
int who_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int who_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
struct utmp *ut;
|
|
unsigned opt;
|
|
int do_users = (ENABLE_USERS && (!ENABLE_WHO || applet_name[0] == 'u'));
|
|
const char *fmt = "%s";
|
|
|
|
opt_complementary = "=0";
|
|
opt = getopt32(argv, do_users ? "" : "aH");
|
|
if (opt & 2) // -H
|
|
printf("USER\t\tTTY\t\tIDLE\tTIME\t\t HOST\n");
|
|
|
|
setutent();
|
|
while ((ut = getutent()) != NULL) {
|
|
if (ut->ut_user[0]
|
|
&& ((opt & 1) || ut->ut_type == USER_PROCESS)
|
|
) {
|
|
if (!do_users) {
|
|
char str6[6];
|
|
char name[sizeof("/dev/") + sizeof(ut->ut_line) + 1];
|
|
struct stat st;
|
|
time_t seconds;
|
|
|
|
str6[0] = '?';
|
|
str6[1] = '\0';
|
|
strcpy(name, "/dev/");
|
|
safe_strncpy(ut->ut_line[0] == '/' ? name : name + sizeof("/dev/")-1,
|
|
ut->ut_line,
|
|
sizeof(ut->ut_line)+1
|
|
);
|
|
if (stat(name, &st) == 0)
|
|
idle_string(str6, st.st_atime);
|
|
/* manpages say ut_tv.tv_sec *is* time_t,
|
|
* but some systems have it wrong */
|
|
seconds = ut->ut_tv.tv_sec;
|
|
/* How wide time field can be?
|
|
* "Nov 10 19:33:20": 15 chars
|
|
* "2010-11-10 19:33": 16 chars
|
|
*/
|
|
printf("%-15.*s %-15.*s %-7s %-16.16s %.*s\n",
|
|
(int)sizeof(ut->ut_user), ut->ut_user,
|
|
(int)sizeof(ut->ut_line), ut->ut_line,
|
|
str6,
|
|
ctime(&seconds) + 4,
|
|
(int)sizeof(ut->ut_host), ut->ut_host
|
|
);
|
|
} else {
|
|
printf(fmt, ut->ut_user);
|
|
fmt = " %s";
|
|
}
|
|
}
|
|
}
|
|
if (do_users)
|
|
bb_putchar('\n');
|
|
if (ENABLE_FEATURE_CLEAN_UP)
|
|
endutent();
|
|
return EXIT_SUCCESS;
|
|
}
|