Contents of /trunk/mkinitrd-magellan/busybox/coreutils/who.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 2165 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | /* vi: set sw=4 ts=4: */ |
2 | /*---------------------------------------------------------------------- |
3 | * Mini who is used to display user name, login time, |
4 | * idle time and host name. |
5 | * |
6 | * Author: Da Chen <dchen@ayrnetworks.com> |
7 | * |
8 | * This is a free document; you can redistribute it and/or |
9 | * modify it under the terms of the GNU General Public License |
10 | * as published by the Free Software Foundation: |
11 | * http://www.gnu.org/copyleft/gpl.html |
12 | * |
13 | * Copyright (c) 2002 AYR Networks, Inc. |
14 | * |
15 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
16 | * |
17 | *---------------------------------------------------------------------- |
18 | */ |
19 | /* BB_AUDIT SUSv3 _NOT_ compliant -- missing options -b, -d, -H, -l, -m, -p, -q, -r, -s, -t, -T, -u; Missing argument 'file'. */ |
20 | |
21 | #include "libbb.h" |
22 | #include <utmp.h> |
23 | |
24 | static void idle_string(char *str6, time_t t) |
25 | { |
26 | t = time(NULL) - t; |
27 | |
28 | /*if (t < 60) { |
29 | str6[0] = '.'; |
30 | str6[1] = '\0'; |
31 | return; |
32 | }*/ |
33 | if (t >= 0 && t < (24 * 60 * 60)) { |
34 | sprintf(str6, "%02d:%02d", |
35 | (int) (t / (60 * 60)), |
36 | (int) ((t % (60 * 60)) / 60)); |
37 | return; |
38 | } |
39 | strcpy(str6, "old"); |
40 | } |
41 | |
42 | int who_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
43 | int who_main(int argc UNUSED_PARAM, char **argv) |
44 | { |
45 | char str6[6]; |
46 | struct utmp *ut; |
47 | struct stat st; |
48 | char *name; |
49 | unsigned opt; |
50 | |
51 | opt_complementary = "=0"; |
52 | opt = getopt32(argv, "a"); |
53 | |
54 | setutent(); |
55 | printf("USER TTY IDLE TIME HOST\n"); |
56 | while ((ut = getutent()) != NULL) { |
57 | if (ut->ut_user[0] && (opt || ut->ut_type == USER_PROCESS)) { |
58 | time_t tmp; |
59 | /* ut->ut_line is device name of tty - "/dev/" */ |
60 | name = concat_path_file("/dev", ut->ut_line); |
61 | str6[0] = '?'; |
62 | str6[1] = '\0'; |
63 | if (stat(name, &st) == 0) |
64 | idle_string(str6, st.st_atime); |
65 | /* manpages say ut_tv.tv_sec *is* time_t, |
66 | * but some systems have it wrong */ |
67 | tmp = ut->ut_tv.tv_sec; |
68 | /* 15 chars for time: Nov 10 19:33:20 */ |
69 | printf("%-10s %-8s %-9s %-15.15s %s\n", |
70 | ut->ut_user, ut->ut_line, str6, |
71 | ctime(&tmp) + 4, ut->ut_host); |
72 | if (ENABLE_FEATURE_CLEAN_UP) |
73 | free(name); |
74 | } |
75 | } |
76 | if (ENABLE_FEATURE_CLEAN_UP) |
77 | endutent(); |
78 | return EXIT_SUCCESS; |
79 | } |