* 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'. */
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <utmp.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <string.h>
-#include <time.h>
-#include "busybox.h"
-
-extern int who_main(int argc, char **argv)
-{
- struct utmp *ut;
- struct stat st;
- int devlen, len;
- time_t now, idle;
+//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.
- if (argc > 1)
- bb_show_usage();
+//config:config USERS
+//config: bool "users"
+//config: default y
+//config: depends on FEATURE_UTMP
+//config: help
+//config: Print users currently logged on.
- setutent();
- devlen = sizeof("/dev/") - 1;
- printf("USER TTY IDLE FROM HOST\n");
+//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))
- while ((ut = getutent()) != NULL) {
- char name[40];
+//kbuild:lib-$(CONFIG_USERS) += who.o
+//kbuild:lib-$(CONFIG_WHO) += who.o
- if (ut->ut_user[0] && ut->ut_type == USER_PROCESS) {
- len = strlen(ut->ut_line);
- if (ut->ut_line[0] == '/') {
- strncpy(name, ut->ut_line, len);
- name[len] = '\0';
- strcpy(ut->ut_line, ut->ut_line + devlen);
- } else {
- strcpy(name, "/dev/");
- strncpy(name+devlen, ut->ut_line, len);
- name[devlen+len] = '\0';
- }
+//usage:#define users_trivial_usage
+//usage: ""
+//usage:#define users_full_usage "\n\n"
+//usage: "Print the users currently logged on"
- printf("%-10s %-8s ", ut->ut_user, ut->ut_line);
+//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"
+//usage: "\n -H Print column headers"
- if (stat(name, &st) == 0) {
- now = time(NULL);
- idle = now - st.st_atime;
+#include "libbb.h"
- if (idle < 60)
- printf("00:00m ");
- else if (idle < (60 * 60))
- printf("00:%02dm ", (int)(idle / 60));
- else if (idle < (24 * 60 * 60))
- printf("%02d:%02dm ", (int)(idle / (60 * 60)),
- (int)(idle % (60 * 60)) / 60);
- else if (idle < (24 * 60 * 60 * 365))
- printf("%03ddays ", (int)(idle / (24 * 60 * 60)));
- else
- printf("%02dyears ", (int) (idle / (24 * 60 * 60 * 365)));
- } else
- printf("%-8s ", "?");
+static void idle_string(char *str6, time_t t)
+{
+ t = time(NULL) - t;
- printf("%-12.12s %s\n", ctime((time_t*)&(ut->ut_tv.tv_sec)) + 4, ut->ut_host);
+ /*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;
}
- }
- endutent();
+ strcpy(str6, "old");
+}
- return 0;
+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;
}
projects / platform / upstream / busybox.git / blobdiff